chore: Update flaky mock server test

tests/mock_server_tests.rs

@@ -1,4 +1,3 @@
-use std::fs;
 use std::panic::catch_unwind;
 use std::path::Path;
 use base64::Engine;
@@ -20,7 +19,7 @@ use pact_protobuf_plugin::utils::find_message_type_by_name;
 async fn mock_server_block() {
   let mut pact_builder = PactBuilderAsync::new_v4("null-and-void", "protobuf-plugin");
   let _mock_server = pact_builder
-    .using_plugin("protobuf", Some("0".to_string())).await
+    .using_plugin("protobuf", None).await
     .synchronous_message_interaction("doesn't matter, won't be called", |mut i| async move {
       let proto_file = Path::new("tests/simple.proto")
         .canonicalize().unwrap().to_string_lossy().to_string();
@@ -48,37 +47,7 @@ async fn mock_server_block() {
 }
 
 #[test_log::test]
-#[ignore] // TODO: This test sometimes fails with transport error and other times
-// "application/protobuf;application/grpc" was not found in the plugin register
 fn mock_server_with_no_requests() {
-  let current_exe = std::env::current_exe().unwrap();
-  let current_dir = current_exe.parent().unwrap();
-  let test_bin_dir = current_dir.parent().unwrap();
-  let plugin_bin = if cfg!(windows) {
-    test_bin_dir.join("pact-protobuf-plugin.exe")
-  } else {
-    test_bin_dir.join("pact-protobuf-plugin")
-  };
-
-  if plugin_bin.exists() {
-    let plugin_dir = home::home_dir().unwrap().join(".pact/plugins/protobuf-0");
-    fs::create_dir_all(plugin_dir.clone()).unwrap();
-    let manifest_file = plugin_dir.join("pact-plugin.json");
-    fs::write(manifest_file, json!({
-      "manifestVersion": 1,
-      "pluginInterfaceVersion": 1,
-      "name": "protobuf",
-      "version": "0",
-      "executableType": "exec",
-      "entryPoint": "pact-protobuf-plugin",
-      "pluginConfig": {
-        "protocVersion": "3.19.1",
-        "downloadUrl": "https://github.com/protocolbuffers/protobuf/releases/download"
-      }
-    }).to_string()).unwrap();
-    let plugin_file = plugin_dir.join("pact-protobuf-plugin");
-    fs::copy(plugin_bin, plugin_file).unwrap();
-
     let result = catch_unwind(|| {
       let runtime = tokio::runtime::Builder::new_multi_thread()
         .enable_all()
@@ -87,12 +56,10 @@ fn mock_server_with_no_requests() {
       runtime.block_on(mock_server_block())
     });
 
-    fs::remove_dir_all(plugin_dir).unwrap();
-
     let error = result.unwrap_err();
     let error_message = panic_message::panic_message(&error);
-    expect!(error_message).to(be_equal_to("plugin mock server failed verification:\n    1) Test/GetTest: Did not receive any requests for path 'Test/GetTest'\n"));
-  }
+    expect!(error_message).to(be_equal_to(
+      "plugin mock server failed verification:\n    1) Test/GetTest: Did not receive any requests for path 'Test/GetTest'\n"));
 }
 
 #[test_log::test(tokio::test(flavor = "multi_thread"))]