From f9799437a5f92bfb51941d1e74e6b65671bc8ced Mon Sep 17 00:00:00 2001
From: mogery <mo.geryy@gmail.com>
Date: Wed, 7 Feb 2024 18:08:46 +0000
Subject: [PATCH 1/5] feat(execution_spec): add and use MockFileSystem

---
 tests/execution_spec.rs | 154 +++++++++++++++++++++++++---------------
 1 file changed, 96 insertions(+), 58 deletions(-)

diff --git a/tests/execution_spec.rs b/tests/execution_spec.rs
index f201041ec7..0febaaf56c 100644
--- a/tests/execution_spec.rs
+++ b/tests/execution_spec.rs
@@ -18,14 +18,14 @@ use serde::{Deserialize, Serialize};
 use serde_json::Value;
 use tailcall::async_graphql_hyper::{GraphQLBatchRequest, GraphQLRequest};
 use tailcall::blueprint::{self, Blueprint, Upstream};
-use tailcall::cli::{init_file, init_hook_http, init_http, init_in_memory_cache, init_runtime};
+use tailcall::cli::{init_hook_http, init_http, init_in_memory_cache, init_runtime};
 use tailcall::config::reader::ConfigReader;
 use tailcall::config::{Config, ConfigModule, Source};
 use tailcall::http::{handle_request, AppContext, Method, Response};
 use tailcall::print_schema::print_schema;
 use tailcall::target_runtime::TargetRuntime;
 use tailcall::valid::{Cause, ValidationError, Validator as _};
-use tailcall::{EnvIO, HttpIO};
+use tailcall::{EnvIO, FileIO, HttpIO};
 use url::Url;
 
 static INIT: Once = Once::new();
@@ -139,6 +139,7 @@ struct ExecutionSpec {
     mock: Option<Vec<Mock>>,
     env: Option<HashMap<String, String>>,
     assert: Option<Vec<APIRequest>>,
+    files: BTreeMap<String, String>,
 
     // Annotations for the runner
     runner: Option<Annotation>,
@@ -217,6 +218,7 @@ impl ExecutionSpec {
         let mut server: Vec<(Source, String)> = Vec::with_capacity(2);
         let mut mock: Option<Vec<Mock>> = None;
         let mut env: Option<HashMap<String, String>> = None;
+        let mut files: BTreeMap<String, String> = BTreeMap::new();
         let mut assert: Option<Vec<APIRequest>> = None;
         let mut runner: Option<Annotation> = None;
         let mut check_identity = false;
@@ -308,64 +310,71 @@ impl ExecutionSpec {
                             return Err(anyhow!("Unexpected non-code block node or EOF after component definition in {:?}", path));
                         };
 
-                        let lang = match lang {
-                            Some(x) => Ok(x),
-                            None => {
-                                Err(anyhow!("Unexpected languageless code block in {:?}", path))
-                            }
-                        }?;
-
-                        let source = Source::from_str(&lang)?;
-
                         // Parse component name
                         if let Some(Node::Text(text)) = heading.children.first() {
                             let name = text.value.as_str();
 
-                            match name {
-                                "server:" => {
-                                    // Server configs are only parsed if the test isn't skipped.
-                                    server.push((source, content));
+                            if name.starts_with("file:") {
+                                let name = &name[5..];
+                                if files.insert(name.to_string(), content).is_some() {
+                                    return Err(anyhow!("Double declaration of file {:?} in {:#?}", name, path));
                                 }
-                                "mock:" => {
-                                    if mock.is_none() {
-                                        mock = match source {
-                                            Source::Json => Ok(serde_json::from_str(&content)?),
-                                            Source::Yml => Ok(serde_yaml::from_str(&content)?),
-                                            _ => Err(anyhow!("Unexpected language in mock block in {:?} (only JSON and YAML are supported)", path)),
-                                        }?;
-                                    } else {
-                                        return Err(anyhow!("Unexpected number of mock blocks in {:?} (only one is allowed)", path));
+                            } else {
+                                let lang = match lang {
+                                    Some(x) => Ok(x),
+                                    None => {
+                                        Err(anyhow!("Unexpected languageless code block in {:?}", path))
                                     }
-                                }
-                                "env:" => {
-                                    if env.is_none() {
-                                        env = match source {
-                                            Source::Json => Ok(serde_json::from_str(&content)?),
-                                            Source::Yml => Ok(serde_yaml::from_str(&content)?),
-                                            _ => Err(anyhow!("Unexpected language in env block in {:?} (only JSON and YAML are supported)", path)),
-                                        }?;
-                                    } else {
-                                        return Err(anyhow!("Unexpected number of env blocks in {:?} (only one is allowed)", path));
+                                }?;
+        
+                                let source = Source::from_str(&lang)?;
+
+                                match name {
+                                    "server:" => {
+                                        // Server configs are only parsed if the test isn't skipped.
+                                        server.push((source, content));
                                     }
-                                }
-                                "assert:" => {
-                                    if assert.is_none() {
-                                        assert = match source {
-                                            Source::Json => Ok(serde_json::from_str(&content)?),
-                                            Source::Yml => Ok(serde_yaml::from_str(&content)?),
-                                            _ => Err(anyhow!("Unexpected language in assert block in {:?} (only JSON and YAML are supported)", path)),
-                                        }?;
-                                    } else {
-                                        return Err(anyhow!("Unexpected number of assert blocks in {:?} (only one is allowed)", path));
+                                    "mock:" => {
+                                        if mock.is_none() {
+                                            mock = match source {
+                                                Source::Json => Ok(serde_json::from_str(&content)?),
+                                                Source::Yml => Ok(serde_yaml::from_str(&content)?),
+                                                _ => Err(anyhow!("Unexpected language in mock block in {:?} (only JSON and YAML are supported)", path)),
+                                            }?;
+                                        } else {
+                                            return Err(anyhow!("Unexpected number of mock blocks in {:?} (only one is allowed)", path));
+                                        }
+                                    }
+                                    "env:" => {
+                                        if env.is_none() {
+                                            env = match source {
+                                                Source::Json => Ok(serde_json::from_str(&content)?),
+                                                Source::Yml => Ok(serde_yaml::from_str(&content)?),
+                                                _ => Err(anyhow!("Unexpected language in env block in {:?} (only JSON and YAML are supported)", path)),
+                                            }?;
+                                        } else {
+                                            return Err(anyhow!("Unexpected number of env blocks in {:?} (only one is allowed)", path));
+                                        }
+                                    }
+                                    "assert:" => {
+                                        if assert.is_none() {
+                                            assert = match source {
+                                                Source::Json => Ok(serde_json::from_str(&content)?),
+                                                Source::Yml => Ok(serde_yaml::from_str(&content)?),
+                                                _ => Err(anyhow!("Unexpected language in assert block in {:?} (only JSON and YAML are supported)", path)),
+                                            }?;
+                                        } else {
+                                            return Err(anyhow!("Unexpected number of assert blocks in {:?} (only one is allowed)", path));
+                                        }
+                                    }
+                                    _ => {
+                                        return Err(anyhow!(
+                                            "Unexpected component {:?} in {:?}: {:#?}",
+                                            name,
+                                            path,
+                                            heading
+                                        ))
                                     }
-                                }
-                                _ => {
-                                    return Err(anyhow!(
-                                        "Unexpected component {:?} in {:?}: {:#?}",
-                                        name,
-                                        path,
-                                        heading
-                                    ))
                                 }
                             }
                         } else {
@@ -404,6 +413,7 @@ impl ExecutionSpec {
             mock,
             env,
             assert,
+            files,
 
             runner,
             check_identity,
@@ -438,7 +448,7 @@ impl ExecutionSpec {
         let runtime = TargetRuntime {
             http,
             http2_only,
-            file: init_file(),
+            file: Arc::new(MockFileSystem::new(self.clone())),
             env: Arc::new(Env::init(env)),
             cache: Arc::new(init_in_memory_cache()),
         };
@@ -564,10 +574,35 @@ impl HttpIO for MockHttpClient {
     }
 }
 
+struct MockFileSystem {
+    spec: ExecutionSpec
+}
+
+impl MockFileSystem {
+    fn new(spec: ExecutionSpec) -> MockFileSystem {
+        MockFileSystem { spec }
+    }
+}
+
+#[async_trait::async_trait]
+impl FileIO for MockFileSystem {
+    async fn write<'a>(&'a self, _path: &'a str, _content: &'a [u8]) -> anyhow::Result<()> {
+        Err(anyhow!("Cannot write to a file in an execution spec"))
+    }
+
+    async fn read<'a>(&'a self, path: &'a str) -> anyhow::Result<String> {
+        let base = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("tests/execution/");
+        let path = path.strip_prefix(&base.to_string_lossy().to_string()).unwrap_or(path);
+
+        match self.spec.files.get(path) {
+            Some(x) => Ok(x.to_owned()),
+            None => Err(anyhow!("No such file or directory (os error 2)")),
+        }
+    }
+}
+
 async fn assert_spec(spec: ExecutionSpec) {
     let will_insta_panic = std::env::var("INSTA_FORCE_PASS").is_err();
-    let runtime = init_runtime(&Upstream::default(), None);
-    let reader = ConfigReader::init(runtime);
 
     // Parse and validate all server configs + check for identity
     log::info!("{} {} ...", spec.name, spec.path.display());
@@ -584,7 +619,8 @@ async fn assert_spec(spec: ExecutionSpec) {
 
         let config = match config {
             Ok(config) => {
-                let runtime = init_runtime(&blueprint::Upstream::default(), None);
+                let mut runtime = init_runtime(&blueprint::Upstream::default(), None);
+                runtime.file = Arc::new(MockFileSystem::new(spec.clone()));
                 let reader = ConfigReader::init(runtime);
                 match reader
                     .resolve(config, Some(spec.path.to_string_lossy().to_string()))
@@ -684,9 +720,11 @@ async fn assert_spec(spec: ExecutionSpec) {
         log::info!("\tmerged ok");
     }
 
-    dbg!(spec.path.to_string_lossy().to_string());
-
     // Resolve all configs
+    let mut runtime = init_runtime(&Upstream::default(), None);
+    runtime.file = Arc::new(MockFileSystem::new(spec.clone()));
+    let reader = ConfigReader::init(runtime);
+
     let server: Vec<ConfigModule> = join_all(
         server
             .into_iter()

From 6ee4a3dee3ca3ca07f75d3439f474fe3d117c351 Mon Sep 17 00:00:00 2001
From: mogery <mo.geryy@gmail.com>
Date: Wed, 7 Feb 2024 18:09:01 +0000
Subject: [PATCH 2/5] chore: convert tests to use mock fs

---
 tests/execution/grpc-batch.md                 | 39 ++++++++++++++++-
 .../grpc-override-url-from-upstream.md        | 39 ++++++++++++++++-
 tests/execution/grpc-simple.md                | 39 ++++++++++++++++-
 tests/execution/grpc-url-from-upstream.md     | 39 ++++++++++++++++-
 .../test-add-link-to-empty-config.md          | 29 ++++++++++++-
 tests/execution/test-duplicated-link.md       | 42 +++++++++++++++---
 tests/execution/test-expr-success.md          | 39 ++++++++++++++++-
 tests/execution/test-grpc-group-by.md         | 39 ++++++++++++++++-
 tests/execution/test-grpc-missing-fields.md   | 39 ++++++++++++++++-
 tests/execution/test-grpc-nested-data.md      | 39 ++++++++++++++++-
 tests/execution/test-grpc-nested-optional.md  | 39 ++++++++++++++++-
 tests/execution/test-grpc-optional.md         | 39 ++++++++++++++++-
 tests/execution/test-grpc-service-method.md   | 39 ++++++++++++++++-
 tests/execution/test-grpc-service.md          | 39 ++++++++++++++++-
 tests/execution/test-grpc.md                  | 39 ++++++++++++++++-
 tests/execution/test-js-hello-world.md        | 43 ++++++++++++++++++-
 tests/execution/test-js-multiple-scripts.md   | 43 ++++++++++++++++++-
 tests/execution/test-js-request-reponse.md    | 43 ++++++++++++++++++-
 .../test-missing-argument-on-all-resolvers.md | 39 ++++++++++++++++-
 tests/execution/test-nested-link.md           | 40 ++++++++++++++++-
 .../execution_spec__grpc-batch.md_merged.snap |  2 +-
 ...-override-url-from-upstream.md_merged.snap |  2 +-
 ...execution_spec__grpc-simple.md_merged.snap |  2 +-
 ...pec__grpc-url-from-upstream.md_merged.snap |  2 +-
 ...st-add-link-to-empty-config.md_merged.snap |  2 +-
 ...ion_spec__test-expr-success.md_merged.snap |  2 +-
 .../execution_spec__test-grpc.md_merged.snap  |  2 +-
 ...n_spec__test-js-hello-world.md_merged.snap |  2 +-
 ...ec__test-js-request-reponse.md_merged.snap |  2 +-
 ...tion_spec__test-nested-link.md_merged.snap |  2 +-
 30 files changed, 772 insertions(+), 34 deletions(-)

diff --git a/tests/execution/grpc-batch.md b/tests/execution/grpc-batch.md
index 33f0b942d1..e5b15750e5 100644
--- a/tests/execution/grpc-batch.md
+++ b/tests/execution/grpc-batch.md
@@ -1,12 +1,49 @@
 # Grpc datasource with batching
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
 schema
   @server(port: 8000, graphiql: true)
   @upstream(httpCache: true, batch: {delay: 10})
-  @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+  @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/grpc-override-url-from-upstream.md b/tests/execution/grpc-override-url-from-upstream.md
index 1564259a79..ea4a165843 100644
--- a/tests/execution/grpc-override-url-from-upstream.md
+++ b/tests/execution/grpc-override-url-from-upstream.md
@@ -1,12 +1,49 @@
 # Grpc datasource
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
 schema
   @server(port: 8000, graphiql: true)
   @upstream(httpCache: true, batch: {delay: 10}, baseURL: "http://not-a-valid-grpc-url.com")
-  @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+  @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/grpc-simple.md b/tests/execution/grpc-simple.md
index d617835832..8a28d3a5e3 100644
--- a/tests/execution/grpc-simple.md
+++ b/tests/execution/grpc-simple.md
@@ -1,12 +1,49 @@
 # Grpc datasource
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
 schema
   @server(port: 8000, graphiql: true)
   @upstream(httpCache: true, batch: {delay: 10})
-  @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+  @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/grpc-url-from-upstream.md b/tests/execution/grpc-url-from-upstream.md
index 2a82aa93a0..c61e130223 100644
--- a/tests/execution/grpc-url-from-upstream.md
+++ b/tests/execution/grpc-url-from-upstream.md
@@ -1,12 +1,49 @@
 # Grpc datasource
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
 schema
   @server(port: 8000, graphiql: true)
   @upstream(httpCache: true, batch: {delay: 10}, baseURL: "http://localhost:50051")
-  @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+  @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-add-link-to-empty-config.md b/tests/execution/test-add-link-to-empty-config.md
index 5425efa42e..f46b66ba3d 100644
--- a/tests/execution/test-add-link-to-empty-config.md
+++ b/tests/execution/test-add-link-to-empty-config.md
@@ -2,10 +2,37 @@
 
 ###### check identity
 
+#### file:link-const.graphql
+```graphql
+schema @server @upstream {
+  query: Query
+}
+
+type Query {
+  hello: String @const(data: "Hello from server")
+}
+```
+
+#### file:link-enum.graphql
+```graphql
+schema @server @upstream(baseURL: "http://jsonplaceholder.typicode.com") {
+  query: Query
+}
+
+enum Foo {
+  BAR
+  BAZ
+}
+
+type Query {
+  foo: Foo @http(path: "/foo")
+}
+```
+
 #### server:
 
 ```graphql
-schema @server @upstream @link(src: "../fixtures/link-const.graphql", type: Config) @link(src: "../fixtures/link-enum.graphql", type: Config) {
+schema @server @upstream @link(src: "link-const.graphql", type: Config) @link(src: "link-enum.graphql", type: Config) {
   query: Query
 }
 ```
diff --git a/tests/execution/test-duplicated-link.md b/tests/execution/test-duplicated-link.md
index f5ff15c1c7..074ec9c333 100644
--- a/tests/execution/test-duplicated-link.md
+++ b/tests/execution/test-duplicated-link.md
@@ -2,15 +2,47 @@
 
 ###### sdl error
 
+#### file:jsonplaceholder.graphql
+```graphql
+schema
+  @server(port: 8000, graphiql: true, hostname: "0.0.0.0")
+  @upstream(baseURL: "http://jsonplaceholder.typicode.com", httpCache: true, batch: {delay: 100}) {
+  query: Query
+}
+
+type Query {
+  posts: [Post] @http(path: "/posts")
+  users: [User] @http(path: "/users")
+  user(id: Int!): User @http(path: "/users/{{args.id}}")
+}
+
+type User {
+  id: Int!
+  name: String!
+  username: String!
+  email: String!
+  phone: String
+  website: String
+}
+
+type Post {
+  id: Int!
+  userId: Int!
+  title: String!
+  body: String!
+  user: User @http(path: "/users/{{value.userId}}")
+}
+```
+
 #### server:
 
 ```graphql
 schema
-  @link(type: Config, src: "../../examples/jsonplaceholder.graphql", id: "placeholder")
-  @link(type: Config, src: "../../examples/jsonplaceholder.graphql", id: "placeholder1")
-  @link(type: Config, src: "../../examples/jsonplaceholder.graphql", id: "placeholder1")
-  @link(type: Config, src: "../../examples/jsonplaceholder.graphql", id: "placeholder2")
-  @link(type: Config, src: "../../examples/jsonplaceholder.graphql", id: "placeholder2") {
+  @link(type: Config, src: "jsonplaceholder.graphql", id: "placeholder")
+  @link(type: Config, src: "jsonplaceholder.graphql", id: "placeholder1")
+  @link(type: Config, src: "jsonplaceholder.graphql", id: "placeholder1")
+  @link(type: Config, src: "jsonplaceholder.graphql", id: "placeholder2")
+  @link(type: Config, src: "jsonplaceholder.graphql", id: "placeholder2") {
   query: Query
 }
 
diff --git a/tests/execution/test-expr-success.md b/tests/execution/test-expr-success.md
index 92ad96c06a..72d5674301 100644
--- a/tests/execution/test-expr-success.md
+++ b/tests/execution/test-expr-success.md
@@ -2,10 +2,47 @@
 
 ###### check identity
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
-schema @server(port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 1000}) @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+schema @server(port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 1000}) @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-grpc-group-by.md b/tests/execution/test-grpc-group-by.md
index c44f5d2fb9..ddd5dcecd6 100644
--- a/tests/execution/test-grpc-group-by.md
+++ b/tests/execution/test-grpc-group-by.md
@@ -2,13 +2,50 @@
 
 ###### sdl error
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
 schema
   @server(port: 8000, graphiql: true)
   @upstream(httpCache: true, batch: {delay: 10})
-  @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+  @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-grpc-missing-fields.md b/tests/execution/test-grpc-missing-fields.md
index 4de407fb32..fe5632a9b3 100644
--- a/tests/execution/test-grpc-missing-fields.md
+++ b/tests/execution/test-grpc-missing-fields.md
@@ -2,10 +2,47 @@
 
 ###### sdl error
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
-schema @link(id: "news", src: "../graphql/errors/proto/news.proto", type: Protobuf) {
+schema @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-grpc-nested-data.md b/tests/execution/test-grpc-nested-data.md
index 6d60a0fad7..3eeafaca7c 100644
--- a/tests/execution/test-grpc-nested-data.md
+++ b/tests/execution/test-grpc-nested-data.md
@@ -2,13 +2,50 @@
 
 ###### sdl error
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
 schema
   @server(port: 8000, graphiql: true)
   @upstream(httpCache: true, batch: {delay: 10})
-  @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+  @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-grpc-nested-optional.md b/tests/execution/test-grpc-nested-optional.md
index 7459b21a50..bfa0bb7f5b 100644
--- a/tests/execution/test-grpc-nested-optional.md
+++ b/tests/execution/test-grpc-nested-optional.md
@@ -2,10 +2,47 @@
 
 ###### sdl error
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
-schema @link(id: "news", src: "../graphql/errors/proto/news.proto", type: Protobuf) {
+schema @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-grpc-optional.md b/tests/execution/test-grpc-optional.md
index 27b4b62051..f910b9c5cc 100644
--- a/tests/execution/test-grpc-optional.md
+++ b/tests/execution/test-grpc-optional.md
@@ -2,10 +2,47 @@
 
 ###### sdl error
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
-schema @link(id: "news", src: "../graphql/errors/proto/news.proto", type: Protobuf) {
+schema @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-grpc-service-method.md b/tests/execution/test-grpc-service-method.md
index 8a0a614753..048cdb94dd 100644
--- a/tests/execution/test-grpc-service-method.md
+++ b/tests/execution/test-grpc-service-method.md
@@ -2,10 +2,47 @@
 
 ###### sdl error
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
-schema @link(id: "news", src: "../graphql/errors/proto/news.proto", type: Protobuf) {
+schema @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-grpc-service.md b/tests/execution/test-grpc-service.md
index 2863a7ede2..4a2a2dadb0 100644
--- a/tests/execution/test-grpc-service.md
+++ b/tests/execution/test-grpc-service.md
@@ -2,10 +2,47 @@
 
 ###### sdl error
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
-schema @link(id: "news", src: "../graphql/errors/proto/news.proto", type: Protobuf) {
+schema @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-grpc.md b/tests/execution/test-grpc.md
index 81ee92d151..7943437bb4 100644
--- a/tests/execution/test-grpc.md
+++ b/tests/execution/test-grpc.md
@@ -2,10 +2,47 @@
 
 ###### check identity
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
-schema @server(port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 1000}) @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+schema @server(port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 1000}) @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-js-hello-world.md b/tests/execution/test-js-hello-world.md
index 7811a38e04..a147237a36 100644
--- a/tests/execution/test-js-hello-world.md
+++ b/tests/execution/test-js-hello-world.md
@@ -1,9 +1,50 @@
 # Js Hello World
 
+#### file:test.js
+```js
+// TODO: get rid of this function and do it automatically
+function str2ab(str) {
+  var buf = new ArrayBuffer(str.length) // 2 bytes for each char
+  var bufView = new Uint8Array(buf)
+  for (var i = 0, strLen = str.length; i < strLen; i++) {
+    bufView[i] = str.charCodeAt(i)
+  }
+  return buf
+}
+function onEvent(event) {
+  if (event.message.response) {
+    return event
+  }
+  if (event.message.request.method === "GET" && event.message.request.url === "http://localhost:3000/hello") {
+    return {
+      message: {
+        response: {
+          status: 200,
+          headers: {
+            "Content-Type": "application/json",
+          },
+          body: str2ab(JSON.stringify("hello world")),
+        },
+      },
+    }
+  } else if (event.message.request.method === "GET" && event.message.request.url === "http://localhost:3000/hi") {
+    return {
+      message: {
+        request: {
+          url: "http://localhost:3000/bye",
+          headers: {},
+          method: "GET",
+        },
+      },
+    }
+  }
+}
+```
+
 #### server:
 
 ```graphql
-schema @server @link(type: Script, src: "../http/scripts/test.js") {
+schema @server @link(type: Script, src: "test.js") {
   query: Query
 }
 
diff --git a/tests/execution/test-js-multiple-scripts.md b/tests/execution/test-js-multiple-scripts.md
index 37edbd84ec..6b4abd380c 100644
--- a/tests/execution/test-js-multiple-scripts.md
+++ b/tests/execution/test-js-multiple-scripts.md
@@ -2,10 +2,51 @@
 
 ###### sdl error
 
+#### file:test.js
+```js
+// TODO: get rid of this function and do it automatically
+function str2ab(str) {
+  var buf = new ArrayBuffer(str.length) // 2 bytes for each char
+  var bufView = new Uint8Array(buf)
+  for (var i = 0, strLen = str.length; i < strLen; i++) {
+    bufView[i] = str.charCodeAt(i)
+  }
+  return buf
+}
+function onEvent(event) {
+  if (event.message.response) {
+    return event
+  }
+  if (event.message.request.method === "GET" && event.message.request.url === "http://localhost:3000/hello") {
+    return {
+      message: {
+        response: {
+          status: 200,
+          headers: {
+            "Content-Type": "application/json",
+          },
+          body: str2ab(JSON.stringify("hello world")),
+        },
+      },
+    }
+  } else if (event.message.request.method === "GET" && event.message.request.url === "http://localhost:3000/hi") {
+    return {
+      message: {
+        request: {
+          url: "http://localhost:3000/bye",
+          headers: {},
+          method: "GET",
+        },
+      },
+    }
+  }
+}
+```
+
 #### server:
 
 ```graphql
-schema @server @link(type: Script, src: "../http/scripts/test.js") @link(type: Script, src: "../http/scripts/test.js") {
+schema @server @link(type: Script, src: "test.js") @link(type: Script, src: "test.js") {
   query: Query
 }
 
diff --git a/tests/execution/test-js-request-reponse.md b/tests/execution/test-js-request-reponse.md
index 98271a1ae9..772dac51c9 100644
--- a/tests/execution/test-js-request-reponse.md
+++ b/tests/execution/test-js-request-reponse.md
@@ -1,9 +1,50 @@
 # Js Request Response Hello World
 
+#### file:test.js
+```js
+// TODO: get rid of this function and do it automatically
+function str2ab(str) {
+  var buf = new ArrayBuffer(str.length) // 2 bytes for each char
+  var bufView = new Uint8Array(buf)
+  for (var i = 0, strLen = str.length; i < strLen; i++) {
+    bufView[i] = str.charCodeAt(i)
+  }
+  return buf
+}
+function onEvent(event) {
+  if (event.message.response) {
+    return event
+  }
+  if (event.message.request.method === "GET" && event.message.request.url === "http://localhost:3000/hello") {
+    return {
+      message: {
+        response: {
+          status: 200,
+          headers: {
+            "Content-Type": "application/json",
+          },
+          body: str2ab(JSON.stringify("hello world")),
+        },
+      },
+    }
+  } else if (event.message.request.method === "GET" && event.message.request.url === "http://localhost:3000/hi") {
+    return {
+      message: {
+        request: {
+          url: "http://localhost:3000/bye",
+          headers: {},
+          method: "GET",
+        },
+      },
+    }
+  }
+}
+```
+
 #### server:
 
 ```graphql
-schema @server @link(type: Script, src: "../http/scripts/test.js") {
+schema @server @link(type: Script, src: "test.js") {
   query: Query
 }
 
diff --git a/tests/execution/test-missing-argument-on-all-resolvers.md b/tests/execution/test-missing-argument-on-all-resolvers.md
index 441dc588b4..ce666d907b 100644
--- a/tests/execution/test-missing-argument-on-all-resolvers.md
+++ b/tests/execution/test-missing-argument-on-all-resolvers.md
@@ -2,12 +2,49 @@
 
 ###### sdl error
 
+#### file:news.proto
+```protobuf
+syntax = "proto3";
+
+import "google/protobuf/empty.proto";
+
+package news;
+
+message News {
+    int32 id = 1;
+    string title = 2;
+    string body = 3;
+    string postImage = 4;
+}
+
+service NewsService {
+    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
+    rpc GetNews (NewsId) returns (News) {}
+    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
+    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
+    rpc EditNews (News) returns (News) {}
+    rpc AddNews (News) returns (News) {}
+}
+
+message NewsId {
+    int32 id = 1;
+}
+
+message MultipleNewsId {
+    repeated NewsId ids = 1;
+}
+
+message NewsList {
+    repeated News news = 1;
+}
+```
+
 #### server:
 
 ```graphql
 schema
   @upstream(baseURL: "http://jsonplaceholder.typicode.com")
-  @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+  @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-nested-link.md b/tests/execution/test-nested-link.md
index 66cc5fff90..dd1fb1b7d5 100644
--- a/tests/execution/test-nested-link.md
+++ b/tests/execution/test-nested-link.md
@@ -2,10 +2,48 @@
 
 ###### check identity
 
+#### file:link-enum.graphql
+```graphql
+schema @server @upstream(baseURL: "http://jsonplaceholder.typicode.com") {
+  query: Query
+}
+
+enum Foo {
+  BAR
+  BAZ
+}
+
+type Query {
+  foo: Foo @http(path: "/foo")
+}
+```
+
+#### file:graphql-with-link.graphql
+```graphql
+schema @server @upstream(baseURL: "http://localhost:8000/graphql") @link(src: "link-enum.graphql", type: Config) {
+  query: Query
+}
+
+type Post {
+  id: Int!
+  userId: Int!
+  user: User @graphQL(args: [{key: "id", value: "{{value.userId}}"}], name: "user")
+}
+
+type Query {
+  post(id: Int!): Post @http(baseURL: "http://jsonplaceholder.typicode.com", path: "/posts/{{args.id}}")
+}
+
+type User {
+  id: Int
+  name: String
+}
+```
+
 #### server:
 
 ```graphql
-schema @server @upstream @link(src: "../fixtures/graphql-with-link.graphql", type: Config) {
+schema @server @upstream @link(src: "graphql-with-link.graphql", type: Config) {
   query: Query
 }
 ```
diff --git a/tests/snapshots/execution_spec__grpc-batch.md_merged.snap b/tests/snapshots/execution_spec__grpc-batch.md_merged.snap
index d272360066..ff66f16446 100644
--- a/tests/snapshots/execution_spec__grpc-batch.md_merged.snap
+++ b/tests/snapshots/execution_spec__grpc-batch.md_merged.snap
@@ -2,7 +2,7 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server(graphiql: true, port: 8000) @upstream(batch: {delay: 10, headers: [], maxSize: 100}, httpCache: true) @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+schema @server(graphiql: true, port: 8000) @upstream(batch: {delay: 10, headers: [], maxSize: 100}, httpCache: true) @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/snapshots/execution_spec__grpc-override-url-from-upstream.md_merged.snap b/tests/snapshots/execution_spec__grpc-override-url-from-upstream.md_merged.snap
index 1e5ae99f3a..bae43667cc 100644
--- a/tests/snapshots/execution_spec__grpc-override-url-from-upstream.md_merged.snap
+++ b/tests/snapshots/execution_spec__grpc-override-url-from-upstream.md_merged.snap
@@ -2,7 +2,7 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server(graphiql: true, port: 8000) @upstream(baseURL: "http://not-a-valid-grpc-url.com", batch: {delay: 10, headers: [], maxSize: 100}, httpCache: true) @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+schema @server(graphiql: true, port: 8000) @upstream(baseURL: "http://not-a-valid-grpc-url.com", batch: {delay: 10, headers: [], maxSize: 100}, httpCache: true) @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/snapshots/execution_spec__grpc-simple.md_merged.snap b/tests/snapshots/execution_spec__grpc-simple.md_merged.snap
index 63b01cbb94..cbe04640ea 100644
--- a/tests/snapshots/execution_spec__grpc-simple.md_merged.snap
+++ b/tests/snapshots/execution_spec__grpc-simple.md_merged.snap
@@ -2,7 +2,7 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server(graphiql: true, port: 8000) @upstream(batch: {delay: 10, headers: [], maxSize: 100}, httpCache: true) @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+schema @server(graphiql: true, port: 8000) @upstream(batch: {delay: 10, headers: [], maxSize: 100}, httpCache: true) @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/snapshots/execution_spec__grpc-url-from-upstream.md_merged.snap b/tests/snapshots/execution_spec__grpc-url-from-upstream.md_merged.snap
index 076cc174c5..aa679b9369 100644
--- a/tests/snapshots/execution_spec__grpc-url-from-upstream.md_merged.snap
+++ b/tests/snapshots/execution_spec__grpc-url-from-upstream.md_merged.snap
@@ -2,7 +2,7 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server(graphiql: true, port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 100}, httpCache: true) @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+schema @server(graphiql: true, port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 100}, httpCache: true) @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/snapshots/execution_spec__test-add-link-to-empty-config.md_merged.snap b/tests/snapshots/execution_spec__test-add-link-to-empty-config.md_merged.snap
index bba7c6f380..16ae75e5af 100644
--- a/tests/snapshots/execution_spec__test-add-link-to-empty-config.md_merged.snap
+++ b/tests/snapshots/execution_spec__test-add-link-to-empty-config.md_merged.snap
@@ -2,6 +2,6 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server @upstream @link(src: "../fixtures/link-const.graphql", type: Config) @link(src: "../fixtures/link-enum.graphql", type: Config) {
+schema @server @upstream @link(src: "link-const.graphql", type: Config) @link(src: "link-enum.graphql", type: Config) {
   query: Query
 }
diff --git a/tests/snapshots/execution_spec__test-expr-success.md_merged.snap b/tests/snapshots/execution_spec__test-expr-success.md_merged.snap
index eeffd7646a..3af57c3604 100644
--- a/tests/snapshots/execution_spec__test-expr-success.md_merged.snap
+++ b/tests/snapshots/execution_spec__test-expr-success.md_merged.snap
@@ -2,7 +2,7 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server(port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 1000}) @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+schema @server(port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 1000}) @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/snapshots/execution_spec__test-grpc.md_merged.snap b/tests/snapshots/execution_spec__test-grpc.md_merged.snap
index 535426b2bd..312572fcb2 100644
--- a/tests/snapshots/execution_spec__test-grpc.md_merged.snap
+++ b/tests/snapshots/execution_spec__test-grpc.md_merged.snap
@@ -2,7 +2,7 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server(port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 1000}) @link(id: "news", src: "../../src/grpc/tests/news.proto", type: Protobuf) {
+schema @server(port: 8000) @upstream(baseURL: "http://localhost:50051", batch: {delay: 10, headers: [], maxSize: 1000}) @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/snapshots/execution_spec__test-js-hello-world.md_merged.snap b/tests/snapshots/execution_spec__test-js-hello-world.md_merged.snap
index 7b489a033e..3102d752cb 100644
--- a/tests/snapshots/execution_spec__test-js-hello-world.md_merged.snap
+++ b/tests/snapshots/execution_spec__test-js-hello-world.md_merged.snap
@@ -2,7 +2,7 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server @upstream @link(src: "../http/scripts/test.js", type: Script) {
+schema @server @upstream @link(src: "test.js", type: Script) {
   query: Query
 }
 
diff --git a/tests/snapshots/execution_spec__test-js-request-reponse.md_merged.snap b/tests/snapshots/execution_spec__test-js-request-reponse.md_merged.snap
index 7b489a033e..3102d752cb 100644
--- a/tests/snapshots/execution_spec__test-js-request-reponse.md_merged.snap
+++ b/tests/snapshots/execution_spec__test-js-request-reponse.md_merged.snap
@@ -2,7 +2,7 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server @upstream @link(src: "../http/scripts/test.js", type: Script) {
+schema @server @upstream @link(src: "test.js", type: Script) {
   query: Query
 }
 
diff --git a/tests/snapshots/execution_spec__test-nested-link.md_merged.snap b/tests/snapshots/execution_spec__test-nested-link.md_merged.snap
index aedb678df1..b7fd3efe85 100644
--- a/tests/snapshots/execution_spec__test-nested-link.md_merged.snap
+++ b/tests/snapshots/execution_spec__test-nested-link.md_merged.snap
@@ -2,6 +2,6 @@
 source: tests/execution_spec.rs
 expression: merged
 ---
-schema @server @upstream @link(src: "../fixtures/graphql-with-link.graphql", type: Config) {
+schema @server @upstream @link(src: "graphql-with-link.graphql", type: Config) {
   query: Query
 }

From 798d25bc49fc835840597b43ec598784a1124728 Mon Sep 17 00:00:00 2001
From: mogery <mo.geryy@gmail.com>
Date: Wed, 7 Feb 2024 18:11:46 +0000
Subject: [PATCH 3/5] chore: remove unused fixtures

---
 tests/data/posts.json                    | 38 -------------
 tests/data/user-posts.json               | 44 ---------------
 tests/data/users.json                    | 71 ------------------------
 tests/fixtures/graphql-with-link.graphql | 18 ------
 tests/fixtures/link-const.graphql        |  7 ---
 tests/fixtures/link-enum.graphql         | 12 ----
 tests/graphql/errors/proto/news.proto    | 33 -----------
 tests/http/scripts/test.js               | 37 ------------
 8 files changed, 260 deletions(-)
 delete mode 100644 tests/data/posts.json
 delete mode 100644 tests/data/user-posts.json
 delete mode 100644 tests/data/users.json
 delete mode 100644 tests/fixtures/graphql-with-link.graphql
 delete mode 100644 tests/fixtures/link-const.graphql
 delete mode 100644 tests/fixtures/link-enum.graphql
 delete mode 100644 tests/graphql/errors/proto/news.proto
 delete mode 100644 tests/http/scripts/test.js

diff --git a/tests/data/posts.json b/tests/data/posts.json
deleted file mode 100644
index c5f3b640bb..0000000000
--- a/tests/data/posts.json
+++ /dev/null
@@ -1,38 +0,0 @@
-[
-  {
-    "userId": 1,
-    "id": 11,
-    "title": "User 1 Post 1",
-    "body": "delectus reiciendis molestiae occaecati non minima eveniet qui voluptatibus\naccusamus in eum beatae sit\nvel qui neque voluptates ut commodi qui incidunt\nut animi commodi"
-  },
-  {
-    "userId": 1,
-    "id": 12,
-    "title": "User 1 Post 2",
-    "body": "itaque id aut magnam\npraesentium quia et ea odit et ea voluptas et\nsapiente quia nihil amet occaecati quia id voluptatem\nincidunt ea est distinctio odio"
-  },
-  {
-    "userId": 2,
-    "id": 13,
-    "title": "User 2 Post 1",
-    "body": "delectus reiciendis molestiae occaecati non minima eveniet qui voluptatibus\naccusamus in eum beatae sit\nvel qui neque voluptates ut commodi qui incidunt\nut animi commodi"
-  },
-  {
-    "userId": 2,
-    "id": 14,
-    "title": "User 2 Post 2",
-    "body": "itaque id aut magnam\npraesentium quia et ea odit et ea voluptas et\nsapiente quia nihil amet occaecati quia id voluptatem\nincidunt ea est distinctio odio"
-  },
-  {
-    "userId": 3,
-    "id": 15,
-    "title": "User 3 Post 1",
-    "body": "delectus reiciendis molestiae occaecati non minima eveniet qui voluptatibus\naccusamus in eum beatae sit\nvel qui neque voluptates ut commodi qui incidunt\nut animi commodi"
-  },
-  {
-    "userId": 3,
-    "id": 16,
-    "title": "User 3 Post 2",
-    "body": "itaque id aut magnam\npraesentium quia et ea odit et ea voluptas et\nsapiente quia nihil amet occaecati quia id voluptatem\nincidunt ea est distinctio odio"
-  }
-]
diff --git a/tests/data/user-posts.json b/tests/data/user-posts.json
deleted file mode 100644
index 7ef890049f..0000000000
--- a/tests/data/user-posts.json
+++ /dev/null
@@ -1,44 +0,0 @@
-{
-  "1": [
-    {
-      "userId": 1,
-      "id": 11,
-      "title": "User 1 Post 1",
-      "body": "delectus reiciendis molestiae occaecati non minima eveniet qui voluptatibus\naccusamus in eum beatae sit\nvel qui neque voluptates ut commodi qui incidunt\nut animi commodi"
-    },
-    {
-      "userId": 1,
-      "id": 12,
-      "title": "User 1 Post 2",
-      "body": "itaque id aut magnam\npraesentium quia et ea odit et ea voluptas et\nsapiente quia nihil amet occaecati quia id voluptatem\nincidunt ea est distinctio odio"
-    }
-  ],
-  "2": [
-    {
-      "userId": 2,
-      "id": 13,
-      "title": "User 2 Post 1",
-      "body": "delectus reiciendis molestiae occaecati non minima eveniet qui voluptatibus\naccusamus in eum beatae sit\nvel qui neque voluptates ut commodi qui incidunt\nut animi commodi"
-    },
-    {
-      "userId": 2,
-      "id": 14,
-      "title": "User 2 Post 2",
-      "body": "itaque id aut magnam\npraesentium quia et ea odit et ea voluptas et\nsapiente quia nihil amet occaecati quia id voluptatem\nincidunt ea est distinctio odio"
-    }
-  ],
-  "3": [
-    {
-      "userId": 3,
-      "id": 15,
-      "title": "User 3 Post 1",
-      "body": "delectus reiciendis molestiae occaecati non minima eveniet qui voluptatibus\naccusamus in eum beatae sit\nvel qui neque voluptates ut commodi qui incidunt\nut animi commodi"
-    },
-    {
-      "userId": 3,
-      "id": 16,
-      "title": "User 3 Post 2",
-      "body": "itaque id aut magnam\npraesentium quia et ea odit et ea voluptas et\nsapiente quia nihil amet occaecati quia id voluptatem\nincidunt ea est distinctio odio"
-    }
-  ]
-}
diff --git a/tests/data/users.json b/tests/data/users.json
deleted file mode 100644
index d5ad59bf34..0000000000
--- a/tests/data/users.json
+++ /dev/null
@@ -1,71 +0,0 @@
-[
-  {
-    "id": 1,
-    "name": "Leanne Graham",
-    "username": "Bret",
-    "email": "Sincere@april.biz",
-    "address": {
-      "street": "Kulas Light",
-      "suite": "Apt. 556",
-      "city": "Gwenborough",
-      "zipcode": "92998-3874",
-      "geo": {
-        "lat": "-37.3159",
-        "lng": "81.1496"
-      }
-    },
-    "phone": "1-770-736-8031 x56442",
-    "website": "hildegard.org",
-    "company": {
-      "name": "Romaguera-Crona",
-      "catchPhrase": "Multi-layered client-server neural-net",
-      "bs": "harness real-time e-markets"
-    }
-  },
-  {
-    "id": 2,
-    "name": "Ervin Howell",
-    "username": "Antonette",
-    "email": "Shanna@melissa.tv",
-    "address": {
-      "street": "Victor Plains",
-      "suite": "Suite 879",
-      "city": "Wisokyburgh",
-      "zipcode": "90566-7771",
-      "geo": {
-        "lat": "-43.9509",
-        "lng": "-34.4618"
-      }
-    },
-    "phone": "010-692-6593 x09125",
-    "website": "anastasia.net",
-    "company": {
-      "name": "Deckow-Crist",
-      "catchPhrase": "Proactive didactic contingency",
-      "bs": "synergize scalable supply-chains"
-    }
-  },
-  {
-    "id": 3,
-    "name": "Clementine Bauch",
-    "username": "Samantha",
-    "email": "Nathan@yesenia.net",
-    "address": {
-      "street": "Douglas Extension",
-      "suite": "Suite 847",
-      "city": "McKenziehaven",
-      "zipcode": "59590-4157",
-      "geo": {
-        "lat": "-68.6102",
-        "lng": "-47.0653"
-      }
-    },
-    "phone": "1-463-123-4447",
-    "website": "ramiro.info",
-    "company": {
-      "name": "Romaguera-Jacobson",
-      "catchPhrase": "Face to face bifurcated interface",
-      "bs": "e-enable strategic applications"
-    }
-  }
-]
diff --git a/tests/fixtures/graphql-with-link.graphql b/tests/fixtures/graphql-with-link.graphql
deleted file mode 100644
index 31fba654ba..0000000000
--- a/tests/fixtures/graphql-with-link.graphql
+++ /dev/null
@@ -1,18 +0,0 @@
-schema @server @upstream(baseURL: "http://localhost:8000/graphql") @link(src: "./link-enum.graphql", type: Config) {
-  query: Query
-}
-
-type Post {
-  id: Int!
-  userId: Int!
-  user: User @graphQL(args: [{key: "id", value: "{{value.userId}}"}], name: "user")
-}
-
-type Query {
-  post(id: Int!): Post @http(baseURL: "http://jsonplaceholder.typicode.com", path: "/posts/{{args.id}}")
-}
-
-type User {
-  id: Int
-  name: String
-}
diff --git a/tests/fixtures/link-const.graphql b/tests/fixtures/link-const.graphql
deleted file mode 100644
index 3859dc933c..0000000000
--- a/tests/fixtures/link-const.graphql
+++ /dev/null
@@ -1,7 +0,0 @@
-schema @server @upstream {
-  query: Query
-}
-
-type Query {
-  hello: String @const(data: "Hello from server")
-}
diff --git a/tests/fixtures/link-enum.graphql b/tests/fixtures/link-enum.graphql
deleted file mode 100644
index 66d05c91ff..0000000000
--- a/tests/fixtures/link-enum.graphql
+++ /dev/null
@@ -1,12 +0,0 @@
-schema @server @upstream(baseURL: "http://jsonplaceholder.typicode.com") {
-  query: Query
-}
-
-enum Foo {
-  BAR
-  BAZ
-}
-
-type Query {
-  foo: Foo @http(path: "/foo")
-}
diff --git a/tests/graphql/errors/proto/news.proto b/tests/graphql/errors/proto/news.proto
deleted file mode 100644
index 600547a105..0000000000
--- a/tests/graphql/errors/proto/news.proto
+++ /dev/null
@@ -1,33 +0,0 @@
-syntax = "proto3";
-
-import "google/protobuf/empty.proto";
-
-package news;
-
-message News {
-    int32 id = 1;
-    string title = 2;
-    string body = 3;
-    string postImage = 4;
-}
-
-service NewsService {
-    rpc GetAllNews (google.protobuf.Empty) returns (NewsList) {}
-    rpc GetNews (NewsId) returns (News) {}
-    rpc GetMultipleNews (MultipleNewsId) returns (NewsList) {}
-    rpc DeleteNews (NewsId) returns (google.protobuf.Empty) {}
-    rpc EditNews (News) returns (News) {}
-    rpc AddNews (News) returns (News) {}
-}
-
-message NewsId {
-    int32 id = 1;
-}
-
-message MultipleNewsId {
-    repeated NewsId ids = 1;
-}
-
-message NewsList {
-    repeated News news = 1;
-}
diff --git a/tests/http/scripts/test.js b/tests/http/scripts/test.js
deleted file mode 100644
index 9cf8b0a595..0000000000
--- a/tests/http/scripts/test.js
+++ /dev/null
@@ -1,37 +0,0 @@
-// TODO: get rid of this function and do it automatically
-function str2ab(str) {
-  var buf = new ArrayBuffer(str.length) // 2 bytes for each char
-  var bufView = new Uint8Array(buf)
-  for (var i = 0, strLen = str.length; i < strLen; i++) {
-    bufView[i] = str.charCodeAt(i)
-  }
-  return buf
-}
-function onEvent(event) {
-  if (event.message.response) {
-    return event
-  }
-  if (event.message.request.method === "GET" && event.message.request.url === "http://localhost:3000/hello") {
-    return {
-      message: {
-        response: {
-          status: 200,
-          headers: {
-            "Content-Type": "application/json",
-          },
-          body: str2ab(JSON.stringify("hello world")),
-        },
-      },
-    }
-  } else if (event.message.request.method === "GET" && event.message.request.url === "http://localhost:3000/hi") {
-    return {
-      message: {
-        request: {
-          url: "http://localhost:3000/bye",
-          headers: {},
-          method: "GET",
-        },
-      },
-    }
-  }
-}

From c51ca398895a0c7cc2a848a38b428e5afe936ebf Mon Sep 17 00:00:00 2001
From: mogery <mo.geryy@gmail.com>
Date: Wed, 7 Feb 2024 18:16:11 +0000
Subject: [PATCH 4/5] chore(execution_spec): update doc

---
 tests/execution_spec.md | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/tests/execution_spec.md b/tests/execution_spec.md
index 40f58da9a5..9deb620a03 100644
--- a/tests/execution_spec.md
+++ b/tests/execution_spec.md
@@ -11,6 +11,7 @@ A Markdown-based snapshot testing framework for Tailcall.
     - [`mock`](#mock)
     - [`env`](#env)
     - [`assert`](#assert)
+    - [`file`](#file)
   - [Instruction](#instruction)
 - [Test process](#test-process)
 - [Snapshots](#snapshots)
@@ -145,6 +146,31 @@ Example:
 ```
 ````
 
+#### `#### file:<filename>`
+
+A `file` block creates a file in the spec's virtual file system. The [`server` block](#server) will only be able to access files created in this way: the true filesystem is not available to it.
+
+Every `file` block has the filename declared in the header. The language of the code block is optional and does not matter.
+
+Example:
+````md
+#### file:enum.graphql
+```graphql
+schema @server @upstream(baseURL: "http://jsonplaceholder.typicode.com") {
+  query: Query
+}
+
+enum Foo {
+  BAR
+  BAZ
+}
+
+type Query {
+  foo: Foo @http(path: "/foo")
+}
+```
+````
+
 ### Instruction
 
 A level 6 heading (`######`), with the text being one of the following:
@@ -181,6 +207,7 @@ There must be exactly zero or one instruction in a test.
       1. If the snapshot doesn't match the generated schema, the runner generates a new snapshot and throws an error.
    1. If the test has an [`assert` block](#assert), the runner performs `assert` checks:
       1. If there is a [`mock` block](#mock), the runner sets up the mock HTTP client based on it.
+      1. If there is at least one [`file` block](#file), the runner sets up the mock filesystem based on them.
       1. If there is an [`env` block](#env), the runner uses it for the app context.
       1. Creates an app context based on the [`server` block](#server).
       1. For each assertion in the block (0-based index `i`), the runner does the following:

From dd1c07ec7208a837ac867e13300d1e27da346f4c Mon Sep 17 00:00:00 2001
From: mogery <mo.geryy@gmail.com>
Date: Wed, 7 Feb 2024 18:21:35 +0000
Subject: [PATCH 5/5] chore: lint

---
 tests/execution/grpc-batch.md                 |  1 +
 .../grpc-override-url-from-upstream.md        |  1 +
 tests/execution/grpc-simple.md                |  1 +
 tests/execution/grpc-url-from-upstream.md     |  1 +
 .../test-add-link-to-empty-config.md          |  2 ++
 tests/execution/test-duplicated-link.md       |  1 +
 tests/execution/test-expr-success.md          |  1 +
 tests/execution/test-grpc-group-by.md         |  1 +
 tests/execution/test-grpc-missing-fields.md   |  1 +
 tests/execution/test-grpc-nested-data.md      |  1 +
 tests/execution/test-grpc-nested-optional.md  |  1 +
 tests/execution/test-grpc-optional.md         |  1 +
 tests/execution/test-grpc-service-method.md   |  1 +
 tests/execution/test-grpc-service.md          |  1 +
 tests/execution/test-grpc.md                  |  1 +
 tests/execution/test-js-hello-world.md        |  1 +
 tests/execution/test-js-multiple-scripts.md   |  1 +
 tests/execution/test-js-request-reponse.md    |  1 +
 .../test-missing-argument-on-all-resolvers.md |  5 ++--
 tests/execution/test-nested-link.md           |  2 ++
 tests/execution_spec.md                       |  2 ++
 tests/execution_spec.rs                       | 24 ++++++++++++-------
 22 files changed, 40 insertions(+), 12 deletions(-)

diff --git a/tests/execution/grpc-batch.md b/tests/execution/grpc-batch.md
index e5b15750e5..71e9d99d5d 100644
--- a/tests/execution/grpc-batch.md
+++ b/tests/execution/grpc-batch.md
@@ -1,6 +1,7 @@
 # Grpc datasource with batching
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/grpc-override-url-from-upstream.md b/tests/execution/grpc-override-url-from-upstream.md
index ea4a165843..c96c477e5c 100644
--- a/tests/execution/grpc-override-url-from-upstream.md
+++ b/tests/execution/grpc-override-url-from-upstream.md
@@ -1,6 +1,7 @@
 # Grpc datasource
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/grpc-simple.md b/tests/execution/grpc-simple.md
index 8a28d3a5e3..175db98ed9 100644
--- a/tests/execution/grpc-simple.md
+++ b/tests/execution/grpc-simple.md
@@ -1,6 +1,7 @@
 # Grpc datasource
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/grpc-url-from-upstream.md b/tests/execution/grpc-url-from-upstream.md
index c61e130223..5bd191b090 100644
--- a/tests/execution/grpc-url-from-upstream.md
+++ b/tests/execution/grpc-url-from-upstream.md
@@ -1,6 +1,7 @@
 # Grpc datasource
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-add-link-to-empty-config.md b/tests/execution/test-add-link-to-empty-config.md
index f46b66ba3d..ccf8657531 100644
--- a/tests/execution/test-add-link-to-empty-config.md
+++ b/tests/execution/test-add-link-to-empty-config.md
@@ -3,6 +3,7 @@
 ###### check identity
 
 #### file:link-const.graphql
+
 ```graphql
 schema @server @upstream {
   query: Query
@@ -14,6 +15,7 @@ type Query {
 ```
 
 #### file:link-enum.graphql
+
 ```graphql
 schema @server @upstream(baseURL: "http://jsonplaceholder.typicode.com") {
   query: Query
diff --git a/tests/execution/test-duplicated-link.md b/tests/execution/test-duplicated-link.md
index 074ec9c333..e2affc02d1 100644
--- a/tests/execution/test-duplicated-link.md
+++ b/tests/execution/test-duplicated-link.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:jsonplaceholder.graphql
+
 ```graphql
 schema
   @server(port: 8000, graphiql: true, hostname: "0.0.0.0")
diff --git a/tests/execution/test-expr-success.md b/tests/execution/test-expr-success.md
index 72d5674301..24257495c2 100644
--- a/tests/execution/test-expr-success.md
+++ b/tests/execution/test-expr-success.md
@@ -3,6 +3,7 @@
 ###### check identity
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-grpc-group-by.md b/tests/execution/test-grpc-group-by.md
index ddd5dcecd6..9b1432b0a0 100644
--- a/tests/execution/test-grpc-group-by.md
+++ b/tests/execution/test-grpc-group-by.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-grpc-missing-fields.md b/tests/execution/test-grpc-missing-fields.md
index fe5632a9b3..006e82ea1a 100644
--- a/tests/execution/test-grpc-missing-fields.md
+++ b/tests/execution/test-grpc-missing-fields.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-grpc-nested-data.md b/tests/execution/test-grpc-nested-data.md
index 3eeafaca7c..f88fd9c711 100644
--- a/tests/execution/test-grpc-nested-data.md
+++ b/tests/execution/test-grpc-nested-data.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-grpc-nested-optional.md b/tests/execution/test-grpc-nested-optional.md
index bfa0bb7f5b..0ea7d1866b 100644
--- a/tests/execution/test-grpc-nested-optional.md
+++ b/tests/execution/test-grpc-nested-optional.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-grpc-optional.md b/tests/execution/test-grpc-optional.md
index f910b9c5cc..eaec6bdc81 100644
--- a/tests/execution/test-grpc-optional.md
+++ b/tests/execution/test-grpc-optional.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-grpc-service-method.md b/tests/execution/test-grpc-service-method.md
index 048cdb94dd..0480199f56 100644
--- a/tests/execution/test-grpc-service-method.md
+++ b/tests/execution/test-grpc-service-method.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-grpc-service.md b/tests/execution/test-grpc-service.md
index 4a2a2dadb0..7d4b9a2c3b 100644
--- a/tests/execution/test-grpc-service.md
+++ b/tests/execution/test-grpc-service.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-grpc.md b/tests/execution/test-grpc.md
index 7943437bb4..125c3c4718 100644
--- a/tests/execution/test-grpc.md
+++ b/tests/execution/test-grpc.md
@@ -3,6 +3,7 @@
 ###### check identity
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
diff --git a/tests/execution/test-js-hello-world.md b/tests/execution/test-js-hello-world.md
index a147237a36..2fba984f03 100644
--- a/tests/execution/test-js-hello-world.md
+++ b/tests/execution/test-js-hello-world.md
@@ -1,6 +1,7 @@
 # Js Hello World
 
 #### file:test.js
+
 ```js
 // TODO: get rid of this function and do it automatically
 function str2ab(str) {
diff --git a/tests/execution/test-js-multiple-scripts.md b/tests/execution/test-js-multiple-scripts.md
index 6b4abd380c..7525de066d 100644
--- a/tests/execution/test-js-multiple-scripts.md
+++ b/tests/execution/test-js-multiple-scripts.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:test.js
+
 ```js
 // TODO: get rid of this function and do it automatically
 function str2ab(str) {
diff --git a/tests/execution/test-js-request-reponse.md b/tests/execution/test-js-request-reponse.md
index 772dac51c9..e7ce9e7942 100644
--- a/tests/execution/test-js-request-reponse.md
+++ b/tests/execution/test-js-request-reponse.md
@@ -1,6 +1,7 @@
 # Js Request Response Hello World
 
 #### file:test.js
+
 ```js
 // TODO: get rid of this function and do it automatically
 function str2ab(str) {
diff --git a/tests/execution/test-missing-argument-on-all-resolvers.md b/tests/execution/test-missing-argument-on-all-resolvers.md
index ce666d907b..919fbc1c08 100644
--- a/tests/execution/test-missing-argument-on-all-resolvers.md
+++ b/tests/execution/test-missing-argument-on-all-resolvers.md
@@ -3,6 +3,7 @@
 ###### sdl error
 
 #### file:news.proto
+
 ```protobuf
 syntax = "proto3";
 
@@ -42,9 +43,7 @@ message NewsList {
 #### server:
 
 ```graphql
-schema
-  @upstream(baseURL: "http://jsonplaceholder.typicode.com")
-  @link(id: "news", src: "news.proto", type: Protobuf) {
+schema @upstream(baseURL: "http://jsonplaceholder.typicode.com") @link(id: "news", src: "news.proto", type: Protobuf) {
   query: Query
 }
 
diff --git a/tests/execution/test-nested-link.md b/tests/execution/test-nested-link.md
index dd1fb1b7d5..f672b8e33a 100644
--- a/tests/execution/test-nested-link.md
+++ b/tests/execution/test-nested-link.md
@@ -3,6 +3,7 @@
 ###### check identity
 
 #### file:link-enum.graphql
+
 ```graphql
 schema @server @upstream(baseURL: "http://jsonplaceholder.typicode.com") {
   query: Query
@@ -19,6 +20,7 @@ type Query {
 ```
 
 #### file:graphql-with-link.graphql
+
 ```graphql
 schema @server @upstream(baseURL: "http://localhost:8000/graphql") @link(src: "link-enum.graphql", type: Config) {
   query: Query
diff --git a/tests/execution_spec.md b/tests/execution_spec.md
index 9deb620a03..83eff4aa1f 100644
--- a/tests/execution_spec.md
+++ b/tests/execution_spec.md
@@ -153,8 +153,10 @@ A `file` block creates a file in the spec's virtual file system. The [`server` b
 Every `file` block has the filename declared in the header. The language of the code block is optional and does not matter.
 
 Example:
+
 ````md
 #### file:enum.graphql
+
 ```graphql
 schema @server @upstream(baseURL: "http://jsonplaceholder.typicode.com") {
   query: Query
diff --git a/tests/execution_spec.rs b/tests/execution_spec.rs
index 0febaaf56c..6eaefe761c 100644
--- a/tests/execution_spec.rs
+++ b/tests/execution_spec.rs
@@ -314,19 +314,23 @@ impl ExecutionSpec {
                         if let Some(Node::Text(text)) = heading.children.first() {
                             let name = text.value.as_str();
 
-                            if name.starts_with("file:") {
-                                let name = &name[5..];
+                            if let Some(name) = name.strip_prefix("file:") {
                                 if files.insert(name.to_string(), content).is_some() {
-                                    return Err(anyhow!("Double declaration of file {:?} in {:#?}", name, path));
+                                    return Err(anyhow!(
+                                        "Double declaration of file {:?} in {:#?}",
+                                        name,
+                                        path
+                                    ));
                                 }
                             } else {
                                 let lang = match lang {
                                     Some(x) => Ok(x),
-                                    None => {
-                                        Err(anyhow!("Unexpected languageless code block in {:?}", path))
-                                    }
+                                    None => Err(anyhow!(
+                                        "Unexpected languageless code block in {:?}",
+                                        path
+                                    )),
                                 }?;
-        
+
                                 let source = Source::from_str(&lang)?;
 
                                 match name {
@@ -575,7 +579,7 @@ impl HttpIO for MockHttpClient {
 }
 
 struct MockFileSystem {
-    spec: ExecutionSpec
+    spec: ExecutionSpec,
 }
 
 impl MockFileSystem {
@@ -592,7 +596,9 @@ impl FileIO for MockFileSystem {
 
     async fn read<'a>(&'a self, path: &'a str) -> anyhow::Result<String> {
         let base = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("tests/execution/");
-        let path = path.strip_prefix(&base.to_string_lossy().to_string()).unwrap_or(path);
+        let path = path
+            .strip_prefix(&base.to_string_lossy().to_string())
+            .unwrap_or(path);
 
         match self.spec.files.get(path) {
             Some(x) => Ok(x.to_owned()),