Add test debugging tests (#1111)

* Add test debugging tests

Adds two new tests that test using the debug adapter in the toolchain to run
a test, as well as a test that uses CodeLLDB.

This required some new test utilities to set application settings at the
start of a test and then set them back to their original value after
each test.

- Fixes up an issue where the LD_LIBRARY_PATH was not set for lldb on
  linux.
- Fixes up an issue where when switching the useDebugAdapterInToolchain
  setting the loggingDebugAdapter wasn't reconfigured

Author: plemarquand

.vscode-test.js

@@ -45,7 +45,6 @@ module.exports = defineConfig({
                 invert: isFastTestRun,
                 slow: 10000,
             },
-            installExtensions: ["vadimcn.vscode-lldb"],
             reuseMachineInstall: !isCIBuild,
         },
         {

assets/test/.vscode/settings.json

@@ -5,5 +5,7 @@
     "swift.additionalTestArguments": [
         "-Xswiftc",
         "-DTEST_ARGUMENT_SET_VIA_TEST_BUILD_ARGUMENTS_SETTING"
-    ]
+    ],
+    "lldb.verboseLogging": true
+
 }

assets/test/defaultPackage/[email protected]

@@ -8,9 +8,6 @@ let package = Package(
     platforms: [
         .macOS(.v13)
     ],
-    dependencies: [
-        .package(url: "https://github.com/apple/swift-testing.git", branch: "main")
-    ],
     targets: [
         // Targets are the basic building blocks of a package. A target can define a module or a test suite.
         // Targets can depend on other targets in this package, and on products in packages this package depends on.
@@ -24,10 +21,7 @@ let package = Package(
         ),
         .testTarget(
             name: "PackageTests",
-            dependencies: [
-                "PackageLib",
-                .product(name: "Testing", package: "swift-testing")
-            ]
+            dependencies: ["PackageLib"]
         ),
     ]
 )

docker/docker-compose.2004.60.insiders.yaml renamed to docker/docker-compose.2204.60.insiders.yaml

@@ -372,7 +372,7 @@ export class WorkspaceContext implements vscode.Disposable {
         // find context with root folder
         const index = this.folders.findIndex(context => context.folder.fsPath === folder.fsPath);
         if (index !== -1) {
-            console.error(`Adding package folder ${folder} twice`);
+            this.outputChannel.log(`Adding package folder ${folder} twice`, "WARN");
             return this.folders[index];
         }
         const folderContext = await FolderContext.create(folder, workspaceFolder, this);

src/WorkspaceContext.ts

@@ -223,7 +223,10 @@ export class TestingConfigurationFactory {
                 program: await this.testExecutableOutputPath(),
                 args: await this.debuggingTestExecutableArgs(),
                 env: {
-                    ...swiftRuntimeEnv(),
+                    ...swiftRuntimeEnv(
+                        process.env,
+                        this.ctx.workspaceContext.toolchain.runtimePath ?? configuration.runtimePath
+                    ),
                     ...configuration.folder(this.ctx.workspaceFolder).testEnvironmentVariables,
                 },
             };

src/debugger/buildConfig.ts

@@ -17,8 +17,8 @@ import configuration from "../configuration";
 import contextKeys from "../contextKeys";
 import { fileExists } from "../utilities/filesystem";
 import { Version } from "../utilities/version";
-import { WorkspaceContext } from "../WorkspaceContext";
 import { SwiftToolchain } from "../toolchain/toolchain";
+import { SwiftOutputChannel } from "../ui/SwiftOutputChannel";
 
 /**
  * The supported {@link vscode.DebugConfiguration.type Debug Configuration Type} for auto-generation of launch configurations
@@ -46,7 +46,12 @@ export class DebugAdapter {
             : LaunchConfigType.CODE_LLDB;
     }
 
-    /** Return the path to the debug adapter */
+    /**
+     * Return the path to the debug adapter.
+     *
+     * @param toolchain The Swift toolchain to use
+     * @returns A path to the debug adapter for the user's toolchain and configuration
+     **/
     public static async debugAdapterPath(toolchain: SwiftToolchain): Promise<string> {
         const customDebugAdapterPath = configuration.debugger.customDebugAdapterPath;
         if (customDebugAdapterPath.length > 0) {
@@ -74,27 +79,26 @@ export class DebugAdapter {
      * @returns Whether or not the debug adapter exists
      */
     public static async verifyDebugAdapterExists(
-        workspace: WorkspaceContext,
+        toolchain: SwiftToolchain,
+        outputChannel: SwiftOutputChannel,
         quiet = false
     ): Promise<boolean> {
-        const lldbDebugAdapterPath = await this.debugAdapterPath(workspace.toolchain).catch(
-            error => {
-                workspace.outputChannel.log(error);
-                return undefined;
-            }
-        );
+        const lldbDebugAdapterPath = await this.debugAdapterPath(toolchain).catch(error => {
+            outputChannel.log(error);
+            return undefined;
+        });
 
         if (!lldbDebugAdapterPath || !(await fileExists(lldbDebugAdapterPath))) {
             if (!quiet) {
-                const debugAdapterName = this.getLaunchConfigType(workspace.toolchain.swiftVersion);
+                const debugAdapterName = this.getLaunchConfigType(toolchain.swiftVersion);
                 vscode.window.showErrorMessage(
                     configuration.debugger.customDebugAdapterPath.length > 0
                         ? `Cannot find ${debugAdapterName} debug adapter specified in setting Swift.Debugger.Path.`
                         : `Cannot find ${debugAdapterName} debug adapter in your Swift toolchain.`
                 );
             }
             if (lldbDebugAdapterPath) {
-                workspace.outputChannel.log(`Failed to find ${lldbDebugAdapterPath}`);
+                outputChannel.log(`Failed to find ${lldbDebugAdapterPath}`);
             }
             contextKeys.lldbVSCodeAvailable = false;
             return false;

src/debugger/debugAdapter.ts

@@ -17,19 +17,76 @@ import * as path from "path";
 import { WorkspaceContext } from "../WorkspaceContext";
 import { DebugAdapter, LaunchConfigType } from "./debugAdapter";
 import { Version } from "../utilities/version";
+import { registerLoggingDebugAdapterTracker } from "./logTracker";
+import { SwiftToolchain } from "../toolchain/toolchain";
+import { SwiftOutputChannel } from "../ui/SwiftOutputChannel";
 
-export function registerLLDBDebugAdapter(workspaceContext: WorkspaceContext): vscode.Disposable {
+/**
+ * Registers the active debugger with the extension, and reregisters it
+ * when the debugger settings change.
+ * @param workspaceContext  The workspace context
+ * @returns A disposable to be disposed when the extension is deactivated
+ */
+export function registerDebugger(workspaceContext: WorkspaceContext): vscode.Disposable {
+    let subscriptions: vscode.Disposable[] = [];
+    const register = async () => {
+        subscriptions.map(sub => sub.dispose());
+        subscriptions = [
+            registerLoggingDebugAdapterTracker(workspaceContext.toolchain.swiftVersion),
+            registerLLDBDebugAdapter(workspaceContext.toolchain, workspaceContext.outputChannel),
+        ];
+
+        await workspaceContext.setLLDBVersion();
+
+        // Verify that the adapter exists, but only after registration. This async method
+        // is basically an unstructured task so we don't want to run it before the adapter
+        // registration above as it could cause code executing immediately after register()
+        // to use the incorrect adapter.
+        DebugAdapter.verifyDebugAdapterExists(
+            workspaceContext.toolchain,
+            workspaceContext.outputChannel,
+            true
+        ).catch(error => {
+            workspaceContext.outputChannel.log(error);
+        });
+    };
+
+    const changeMonitor = vscode.workspace.onDidChangeConfiguration(event => {
+        if (event.affectsConfiguration("swift.debugger.useDebugAdapterFromToolchain")) {
+            register();
+        }
+    });
+
+    // Perform the initial registration, then reregister every time the settings change.
+    register();
+
+    return {
+        dispose: () => {
+            changeMonitor.dispose();
+            subscriptions.map(sub => sub.dispose());
+        },
+    };
+}
+
+/**
+ * Registers the LLDB debug adapter with the VS Code debug adapter descriptor factory.
+ * @param workspaceContext The workspace context
+ * @returns A disposable to be disposed when the extension is deactivated
+ */
+function registerLLDBDebugAdapter(
+    toolchain: SwiftToolchain,
+    outputChannel: SwiftOutputChannel
+): vscode.Disposable {
     const debugAdpaterFactory = vscode.debug.registerDebugAdapterDescriptorFactory(
         LaunchConfigType.SWIFT_EXTENSION,
-        new LLDBDebugAdapterExecutableFactory(workspaceContext)
+        new LLDBDebugAdapterExecutableFactory(toolchain, outputChannel)
     );
+
     const debugConfigProvider = vscode.debug.registerDebugConfigurationProvider(
         LaunchConfigType.SWIFT_EXTENSION,
-        new LLDBDebugConfigurationProvider(
-            process.platform,
-            workspaceContext.toolchain.swiftVersion
-        )
+        new LLDBDebugConfigurationProvider(process.platform, toolchain.swiftVersion)
     );
+
     return {
         dispose: () => {
             debugConfigProvider.dispose();
@@ -56,19 +113,18 @@ export function registerLLDBDebugAdapter(workspaceContext: WorkspaceContext): vs
  * @implements {vscode.DebugAdapterDescriptorFactory}
  */
 export class LLDBDebugAdapterExecutableFactory implements vscode.DebugAdapterDescriptorFactory {
-    private workspaceContext: WorkspaceContext;
+    private toolchain: SwiftToolchain;
+    private outputChannel: SwiftOutputChannel;
 
-    constructor(workspaceContext: WorkspaceContext) {
-        this.workspaceContext = workspaceContext;
+    constructor(toolchain: SwiftToolchain, outputChannel: SwiftOutputChannel) {
+        this.toolchain = toolchain;
+        this.outputChannel = outputChannel;
     }
 
-    createDebugAdapterDescriptor(): vscode.ProviderResult<vscode.DebugAdapterDescriptor> {
-        // Use the stored workspaceContext
-        return DebugAdapter.debugAdapterPath(this.workspaceContext.toolchain)
-            .then(path =>
-                DebugAdapter.verifyDebugAdapterExists(this.workspaceContext).then(() => path)
-            )
-            .then(path => new vscode.DebugAdapterExecutable(path, [], {}));
+    async createDebugAdapterDescriptor(): Promise<vscode.DebugAdapterDescriptor> {
+        const path = await DebugAdapter.debugAdapterPath(this.toolchain);
+        await DebugAdapter.verifyDebugAdapterExists(this.toolchain, this.outputChannel);
+        return new vscode.DebugAdapterExecutable(path, [], {});
     }
 }
 

src/debugger/debugAdapterFactory.ts

@@ -14,7 +14,7 @@
 
 import * as vscode from "vscode";
 import { DebugAdapter } from "./debugAdapter";
-import { WorkspaceContext } from "../WorkspaceContext";
+import { Version } from "../utilities/version";
 
 /**
  * Factory class for building LoggingDebugAdapterTracker
@@ -39,11 +39,34 @@ interface DebugMessage {
     body: OutputEventBody;
 }
 
-export function registerLoggingDebugAdapterTracker(ctx: WorkspaceContext): vscode.Disposable {
-    return vscode.debug.registerDebugAdapterTrackerFactory(
-        DebugAdapter.getLaunchConfigType(ctx.swiftVersion),
-        new LoggingDebugAdapterTrackerFactory()
-    );
+/**
+ * Register the LoggingDebugAdapterTrackerFactory with the VS Code debug adapter tracker
+ * @returns A disposable to be disposed when the extension is deactivated
+ */
+export function registerLoggingDebugAdapterTracker(swiftVersion: Version): vscode.Disposable {
+    const register = () =>
+        vscode.debug.registerDebugAdapterTrackerFactory(
+            DebugAdapter.getLaunchConfigType(swiftVersion),
+            new LoggingDebugAdapterTrackerFactory()
+        );
+
+    // Maintains the disposable for the last registered debug adapter.
+    let debugAdapterDisposable = register();
+    const changeMonitor = vscode.workspace.onDidChangeConfiguration(event => {
+        if (event.affectsConfiguration("swift.debugger.useDebugAdapterFromToolchain")) {
+            // Dispose the old adapter and reconfigure with the new settings.
+            debugAdapterDisposable.dispose();
+            debugAdapterDisposable = register();
+        }
+    });
+
+    // Return a disposable that cleans everything up.
+    return {
+        dispose() {
+            changeMonitor.dispose();
+            debugAdapterDisposable.dispose();
+        },
+    };
 }
 
 /**
@@ -63,6 +86,8 @@ export class LoggingDebugAdapterTracker implements vscode.DebugAdapterTracker {
         const loggingDebugAdapter = this.debugSessionIdMap[session.id];
         if (loggingDebugAdapter) {
             loggingDebugAdapter.cb = cb;
+        } else {
+            console.error("Could not find debug adapter for session:", session.id);
         }
     }
 

src/debugger/logTracker.ts

@@ -29,9 +29,7 @@ import { SwiftPluginTaskProvider } from "./tasks/SwiftPluginTaskProvider";
 import configuration from "./configuration";
 import { Version } from "./utilities/version";
 import { getReadOnlyDocumentProvider } from "./ui/ReadOnlyDocumentProvider";
-import { registerLoggingDebugAdapterTracker } from "./debugger/logTracker";
-import { registerLLDBDebugAdapter } from "./debugger/debugAdapterFactory";
-import { DebugAdapter } from "./debugger/debugAdapter";
+import { registerDebugger } from "./debugger/debugAdapterFactory";
 import contextKeys from "./contextKeys";
 import { showToolchainError } from "./ui/ToolchainSelection";
 import { SwiftToolchain } from "./toolchain/toolchain";
@@ -83,6 +81,7 @@ export async function activate(context: vscode.ExtensionContext): Promise<Api |
             });
 
         context.subscriptions.push(...commands.registerToolchainCommands(toolchain));
+
         context.subscriptions.push(
             vscode.workspace.onDidChangeConfiguration(event => {
                 // on toolchain config change, reload window
@@ -112,14 +111,8 @@ export async function activate(context: vscode.ExtensionContext): Promise<Api |
 
         const workspaceContext = await WorkspaceContext.create(outputChannel, toolchain);
         context.subscriptions.push(...commands.register(workspaceContext));
-
         context.subscriptions.push(workspaceContext);
-
-        // setup swift version of LLDB. Don't await on this as it can run in the background
-        DebugAdapter.verifyDebugAdapterExists(workspaceContext, true).catch(error => {
-            outputChannel.log(error);
-        });
-        workspaceContext.setLLDBVersion();
+        context.subscriptions.push(registerDebugger(workspaceContext));
 
         // listen for workspace folder changes and active text editor changes
         workspaceContext.setupEventListeners();
@@ -231,18 +224,11 @@ export async function activate(context: vscode.ExtensionContext): Promise<Api |
 
         const testExplorerObserver = TestExplorer.observeFolders(workspaceContext);
 
-        // Register swift-lldb debug provider
-        const lldbDebugAdapter = registerLLDBDebugAdapter(workspaceContext);
-        context.subscriptions.push(lldbDebugAdapter);
-
-        const loggingDebugAdapter = registerLoggingDebugAdapterTracker(workspaceContext);
-
         // setup workspace context with initial workspace folders
         workspaceContext.addWorkspaceFolders();
 
         // Register any disposables for cleanup when the extension deactivates.
         context.subscriptions.push(
-            loggingDebugAdapter,
             resolvePackageObserver,
             testExplorerObserver,
             swiftModuleDocumentProvider,
@@ -266,13 +252,3 @@ export async function activate(context: vscode.ExtensionContext): Promise<Api |
         throw error;
     }
 }
-
-/**
- * Deactivate the extension.
- *
- * Any disposables registered in `context.subscriptions` will be automatically
- * disposed of, so there's nothing left to do here.
- */
-export function deactivate() {
-    return;
-}