feat: mock trait derivable on struct with names fields

Cargo.toml

@@ -3,7 +3,7 @@ members = ["crates/*"]
 resolver = "2"
 
 [workspace.package]
-authors = ["gibbz"]
+authors = ["gibbz00 <gabrielhansson00@gmail.com>"]
 edition = "2021"
 exclude = ["/.github"]
 license = "MIT"
@@ -12,6 +12,7 @@ repository = "https://github.com/gibbz00/mock-default"
 version = "0.1.0"
 
 [workspace.dependencies]
+mock-default-macros = { path = "crates/macros" }
 
 [workspace.lints.rust]
 missing_docs = "deny"
@@ -21,6 +22,5 @@ unused_must_use = "deny"
 self_named_module_files = "deny"
 
 [profile.dev]
-# https://davidlattimore.github.io/posts/2024/02/04/speeding-up-the-rust-edit-build-run-cycle.html#avoid-linking-debug-info
 debug = 0
 strip = "debuginfo"

crates/common/Cargo.toml → crates/core/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "mock-default-common"
+name = "mock-default"
 
 authors.workspace = true
 edition.workspace = true
@@ -12,3 +12,7 @@ version.workspace = true
 workspace = true
 
 [dependencies]
+mock-default-macros.workspace = true
+
+[dev-dependencies]
+trybuild = "1.0"

crates/core/src/lib.rs

@@ -0,0 +1,17 @@
+//! mock-default commons.
+
+/// Mocking trait for composable test values.
+///
+/// Similar to [`std::default::Default`]
+pub trait Mock: Sized {
+    /// Returns `Self` containing a non-random and valid test value
+    fn mock() -> Self;
+}
+
+impl<T: Mock> Mock for Option<T> {
+    fn mock() -> Self {
+        Some(Mock::mock())
+    }
+}
+
+pub use mock_default_macros::Mock;