chore: relax Detekt rules for tests (#582)

- Updated `detekt.yml` to exclude test folders from
`EmptyFunctionBlock`, `LargeClass`, and `LongMethod` checks.
- Cleanup detekt-baseline files.
- Simplified `.idea/detekt.xml`.

## Motivation and Context
To reduce linter noise and reduce tension

## How Has This Been Tested?
`./gradlew detekt`

## Breaking Changes
No

## Types of changes
- [x] Build tool/ci update

## Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply. -->
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [ ] I have added appropriate error handling
- [ ] I have added or updated documentation as needed

## Additional context

#567

.idea/detekt.xml

@@ -1,14 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="DetektPluginSettings">
-    <option name="configurationFiles">
-      <list>
-        <option value="$PROJECT_DIR$/detekt.yml" />
-      </list>
-    </option>
     <option name="enableDetekt" value="true" />
     <option name="enableForProjectResult" value="Accepted" />
     <option name="redirectChannels" value="true" />
     <option name="treatAsErrors" value="true" />
   </component>
-</project>
+</project>

config/detekt/detekt.yml

@@ -3,3 +3,18 @@ config:
   warningsAsErrors: false
   checkExhaustiveness: false
 
+complexity:
+  LargeClass:
+    excludes: &testFolders
+      - '**/test/**'
+      - '**/commonTest/**'
+      - '**/jvmTest/**'
+      - '**/jsTest/**'
+      - '**/iosTest/**'
+  LongMethod:
+    excludes: *testFolders
+
+empty-blocks:
+  EmptyFunctionBlock:
+    excludes: *testFolders
+

integration-test/detekt-baseline-commonTestSourceSet.xml

@@ -1,11 +0,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<SmellBaseline>
-  <ManuallySuppressedIssues/>
-  <CurrentIssues>
-    <ID>EmptyFunctionBlock:ClientTest.kt:ClientTest.&lt;no name provided>${ }</ID>
-    <ID>EmptyFunctionBlock:ClientTest.kt:ClientTest.&lt;no name provided>${}</ID>
-    <ID>LargeClass:ClientTest.kt:ClientTest</ID>
-    <ID>LongMethod:ClientTest.kt:ClientTest$@Test fun `JSONRPCRequest with ToolsList method and default params returns list of tools`</ID>
-    <ID>LongMethod:ClientTest.kt:ClientTest$@Test fun `should handle logging setLevel request`</ID>
-  </CurrentIssues>
-</SmellBaseline>

integration-test/detekt-baseline-test.xml

@@ -7,8 +7,6 @@
     <ID>AbstractClassCanBeConcreteClass:AbstractToolIntegrationTest.kt:AbstractToolIntegrationTest$AbstractToolIntegrationTest</ID>
     <ID>AbstractClassCanBeConcreteClass:BaseTransportTest.kt:BaseTransportTest$BaseTransportTest</ID>
     <ID>CyclomaticComplexMethod:AbstractToolIntegrationTest.kt:AbstractToolIntegrationTest$private fun setupCalculatorTool</ID>
-    <ID>EmptyFunctionBlock:ClientTest.kt:ClientTest.&lt;no name provided>${ }</ID>
-    <ID>EmptyFunctionBlock:ClientTest.kt:ClientTest.&lt;no name provided>${}</ID>
     <ID>ForbiddenComment:StdioClientTransportTest.kt:StdioClientTransportTest$// TODO: fix running on windows</ID>
     <ID>InjectDispatcher:AbstractKotlinClientTsServerTest.kt:AbstractKotlinClientTsServerTest$IO</ID>
     <ID>InjectDispatcher:AbstractPromptIntegrationTest.kt:AbstractPromptIntegrationTest$IO</ID>
@@ -21,19 +19,6 @@
     <ID>InjectDispatcher:StreamableHttpIntegrationTest.kt:StreamableHttpIntegrationTest$IO</ID>
     <ID>InjectDispatcher:TsEdgeCasesTestSse.kt:TsEdgeCasesTestSse$IO</ID>
     <ID>InjectDispatcher:WebSocketIntegrationTest.kt:WebSocketIntegrationTest$IO</ID>
-    <ID>LargeClass:AbstractToolIntegrationTest.kt:AbstractToolIntegrationTest : KotlinTestBase</ID>
-    <ID>LargeClass:ClientTest.kt:ClientTest</ID>
-    <ID>LongMethod:AbstractPromptIntegrationTest.kt:AbstractPromptIntegrationTest$@Test fun testMissingRequiredArguments</ID>
-    <ID>LongMethod:AbstractPromptIntegrationTest.kt:AbstractPromptIntegrationTest$override fun configureServer</ID>
-    <ID>LongMethod:AbstractResourceIntegrationTest.kt:AbstractResourceIntegrationTest$override fun configureServer</ID>
-    <ID>LongMethod:AbstractToolIntegrationTest.kt:AbstractToolIntegrationTest$private fun setupCalculatorTool</ID>
-    <ID>LongMethod:ClientTest.kt:ClientTest$@Test fun `JSONRPCRequest with ToolsList method and default params returns list of tools`</ID>
-    <ID>LongMethod:ClientTest.kt:ClientTest$@Test fun `should handle logging setLevel request`</ID>
-    <ID>LongMethod:KotlinServerForTsClientSse.kt:HttpServerTransport$suspend fun handleRequest</ID>
-    <ID>LongMethod:KotlinServerForTsClientSse.kt:KotlinServerForTsClient$fun createMcpServer: Server</ID>
-    <ID>LongMethod:KotlinServerForTsClientSse.kt:KotlinServerForTsClient$fun start</ID>
-    <ID>LongMethod:ServerResourcesNotificationSubscribeTest.kt:ServerResourcesNotificationSubscribeTest$@Test fun `should send resource notifications`</ID>
-    <ID>LongMethod:TsEdgeCasesTestSse.kt:TsEdgeCasesTestSse$@Test @Timeout(30, unit = TimeUnit.SECONDS) fun testComplexConcurrentRequests: Unit</ID>
     <ID>MatchingDeclarationName:PromptIntegrationTestSse.kt:SchemaPromptIntegrationTestSse : AbstractPromptIntegrationTest</ID>
     <ID>SleepInsteadOfDelay:KotlinServerForTsClientSse.kt:KotlinServerForTsClient$sleep(500)</ID>
     <ID>ThrowsCount:AbstractPromptIntegrationTest.kt:AbstractPromptIntegrationTest$override fun configureServer</ID>

kotlin-sdk-client/detekt-baseline-commonTestSourceSet.xml

@@ -2,7 +2,6 @@
 <SmellBaseline>
   <ManuallySuppressedIssues/>
   <CurrentIssues>
-    <ID>LongMethod:StreamableHttpClientTransportTest.kt:StreamableHttpClientTransportTest$@Ignore @Test fun testNotificationSchemaE2E</ID>
     <ID>MaxLineLength:StreamableHttpClientTransportTest.kt:StreamableHttpClientTransportTest$"""data: {"jsonrpc":"2.0","method":"notifications/progress","params":{"progressToken":"upload-123","progress":50,"total":100}}"""</ID>
     <ID>MaxLineLength:StreamableHttpClientTransportTest.kt:StreamableHttpClientTransportTest$"""data: {"jsonrpc":"2.0","method":"notifications/resumed","params":{"fromToken":"$lastEventIdSent"}}"""</ID>
   </CurrentIssues>

kotlin-sdk-client/detekt-baseline-test.xml

@@ -6,8 +6,6 @@
     <ID>ForbiddenComment:StreamableHttpClientTest.kt:StreamableHttpClientTest$// TODO: how to get notifications via Client API?</ID>
     <ID>InjectDispatcher:StdioClientTransportErrorHandlingTest.kt:StdioClientTransportErrorHandlingTest$IO</ID>
     <ID>InjectDispatcher:StreamableHttpClientTransportTest.kt:StreamableHttpClientTransportTest$Default</ID>
-    <ID>LongMethod:StreamableHttpClientTest.kt:StreamableHttpClientTest$@Test fun `test streamableHttpClient`</ID>
-    <ID>LongMethod:StreamableHttpClientTransportTest.kt:StreamableHttpClientTransportTest$@Ignore @Test fun testNotificationSchemaE2E</ID>
     <ID>LongParameterList:MockMcp.kt:MockMcp$fun handleJSONRPCRequest</ID>
     <ID>LongParameterList:MockMcp.kt:MockMcp$fun handleWithResult</ID>
     <ID>LongParameterList:MockMcp.kt:MockMcp$fun onInitialize</ID>