[dartdev] Fix some tests to work under 'dart test'

Now that the SDK uses Pub Workspaces, using the test runner is enabled in Dart-Code. However there are some differences when using 'dart test' that caused some of these tests to fail - this change addresses them:

- Don't use Platform.script because it won't be the source Dart filename
- Make any `args` to `main()` optional
- Add calls to `test()` around some regression tests

I still have a few remaining failures locally, but I'm not yet sure if they're related to the test runner and will troubleshoot them separately.

Change-Id: I01efc5517174ae7e8146892bba1d84cc69029fd4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/421162
Reviewed-by: Ben Konyi <bkonyi@google.com>
Reviewed-by: Jake Macdonald <jakemac@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>

pkg/dartdev/test/native_assets/build_test.dart

@@ -21,11 +21,13 @@ String crossOSNotAllowedError(String format) =>
 final String hostOSMessage = 'Host OS: ${Platform.operatingSystem}';
 String targetOSMessage(String targetOS) => 'Target OS: $targetOS';
 
-void main(List<String> args) async {
+void main([List<String> args = const []]) async {
   if (!nativeAssetsExperimentAvailableOnCurrentChannel) {
     return;
   }
 
+  final dartDevEntryScriptUri = resolveDartDevUri('bin/dartdev.dart');
+
   final bool fromDartdevSource = args.contains('--source');
   final hostOS = Platform.operatingSystem;
   final crossOS = Platform.isLinux ? 'macos' : 'linux';
@@ -48,8 +50,7 @@ void main(List<String> args) async {
           final result = await runDart(
             arguments: [
               '--enable-experiment=native-assets',
-              if (fromDartdevSource)
-                Platform.script.resolve('../../bin/dartdev.dart').toFilePath(),
+              if (fromDartdevSource) dartDevEntryScriptUri.toFilePath(),
               'build',
               if (targetOS != null) ...[
                 '--target-os',
@@ -219,8 +220,7 @@ void main(List<String> args) {
       final result = await runDart(
         arguments: [
           '--enable-experiment=native-assets',
-          if (fromDartdevSource)
-            Platform.script.resolve('../../bin/dartdev.dart').toFilePath(),
+          if (fromDartdevSource) dartDevEntryScriptUri.toFilePath(),
           'build',
           'bin/dart_app.dart',
           '.'

pkg/dartdev/test/native_assets/helpers.dart

@@ -15,6 +15,8 @@ import 'package:test/test.dart';
 import 'package:yaml/yaml.dart';
 import 'package:yaml_edit/yaml_edit.dart';
 
+import '../utils.dart';
+
 extension UriExtension on Uri {
   Uri get parent {
     return File(toFilePath()).parent.uri;
@@ -243,9 +245,8 @@ Future<void> nativeAssetsTest(
         'treeshaking_native_libs',
         'user_defines',
       ],
-      Platform.script.resolve(
-          '../../../../third_party/pkg/native/pkgs/native_assets_builder/'),
-      Platform.script.resolve('../../../../'),
+      sdkRootUri.resolve('third_party/pkg/native/pkgs/native_assets_builder/'),
+      sdkRootUri,
       usePubWorkspace,
     );
 
@@ -259,8 +260,8 @@ Future<void> recordUseTest(
       skipPubGet,
       fun,
       const ['drop_dylib_recording'],
-      Platform.script.resolve('../../../record_use/'),
-      Platform.script.resolve('../../../../'),
+      sdkRootUri.resolve('pkg/record_use/'),
+      sdkRootUri,
       false,
     );
 

pkg/dartdev/test/native_assets/run_test.dart

@@ -9,7 +9,7 @@ import 'package:test/test.dart';
 import '../utils.dart';
 import 'helpers.dart';
 
-void main(List<String> args) async {
+void main([List<String> args = const []]) async {
   if (!nativeAssetsExperimentAvailableOnCurrentChannel) {
     test('dart run', timeout: longTimeout, () async {
       await nativeAssetsTest('dart_app', (dartAppUri) async {

pkg/dartdev/test/native_assets/test_test.dart

@@ -9,7 +9,7 @@ import 'package:test/test.dart';
 import '../utils.dart';
 import 'helpers.dart';
 
-void main(List<String> args) async {
+void main([List<String> args = const []]) async {
   if (!nativeAssetsExperimentAvailableOnCurrentChannel) {
     return;
   }

pkg/dartdev/test/regress_46364_test.dart

@@ -6,6 +6,7 @@ import 'dart:io';
 
 import 'package:expect/expect.dart';
 import 'package:path/path.dart' as p;
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
@@ -25,20 +26,23 @@ Future<void> copyPath(String from, String to) async {
 }
 
 Future<void> main() async {
-  ensureRunFromSdkBinDart();
+  test('Regression test for https://github.com/dart-lang/sdk/issues/46364',
+      () async {
+    ensureRunFromSdkBinDart();
 
-  final exePath = Platform.resolvedExecutable;
-  final sdkDir = p.dirname(p.dirname(exePath));
-  // Try to run the VM located on a path with % encoded characters. The VM
-  // should not try and resolve the path as a URI for SDK artifacts (e.g.,
-  // dartdev.dart.snapshot).
-  final d = Directory.systemTemp.createTempSync('dart_symlink%3A');
-  try {
-    await copyPath(sdkDir, d.path);
-    final path = '${d.path}/bin/dart';
-    final result = await Process.run(path, ['help']);
-    Expect.equals(result.exitCode, 0);
-  } finally {
-    await d.delete(recursive: true);
-  }
+    final exePath = Platform.resolvedExecutable;
+    final sdkDir = p.dirname(p.dirname(exePath));
+    // Try to run the VM located on a path with % encoded characters. The VM
+    // should not try and resolve the path as a URI for SDK artifacts (e.g.,
+    // dartdev.dart.snapshot).
+    final d = Directory.systemTemp.createTempSync('dart_symlink%3A');
+    try {
+      await copyPath(sdkDir, d.path);
+      final path = '${d.path}/bin/dart';
+      final result = await Process.run(path, ['help']);
+      Expect.equals(result.exitCode, 0);
+    } finally {
+      await d.delete(recursive: true);
+    }
+  });
 }

pkg/dartdev/test/regress_56592_test.dart

@@ -5,6 +5,7 @@
 import 'dart:io';
 
 import 'package:expect/expect.dart';
+import 'package:test/test.dart';
 
 // Passing --disable-dart-dev after a DartDev command should cause the VM to
 // exit with an error, not cause a segfault.
@@ -12,15 +13,18 @@ import 'package:expect/expect.dart';
 // See https://github.com/dart-lang/sdk/issues/56592 for details.
 
 Future<void> main() async {
-  final result = await Process.run(
-    Platform.resolvedExecutable,
-    [
-      'test',
-      '--disable-dart-dev',
-    ],
-  );
-  Expect.contains(
-    'Attempted to use --disable-dart-dev with a Dart CLI command.',
-    result.stderr,
-  );
+  test('Regression test for https://github.com/dart-lang/sdk/issues/56592',
+      () async {
+    final result = await Process.run(
+      Platform.resolvedExecutable,
+      [
+        'test',
+        '--disable-dart-dev',
+      ],
+    );
+    Expect.contains(
+      'Attempted to use --disable-dart-dev with a Dart CLI command.',
+      result.stderr,
+    );
+  });
 }

pkg/dartdev/test/sdk_from_path_test.dart

@@ -8,6 +8,8 @@ import 'dart:io';
 import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 
+import 'utils.dart';
+
 // Regression test for https://github.com/dart-lang/sdk/issues/56080
 
 void main() {
@@ -18,13 +20,11 @@ void main() {
   });
 
   test('sdk_test.dart passes when run with dart from PATH', () async {
-    final script = path.join(
-      path.dirname(Platform.script.toString()),
-      'sdk_test.dart',
-    );
+    final sdkTestUri = resolveDartDevUri('test/sdk_test.dart');
+
     process = await Process.start(
       'dart',
-      [script],
+      [sdkTestUri.toFilePath()],
       environment: {'PATH': path.dirname(Platform.resolvedExecutable)},
     );
 

pkg/dartdev/test/smoke/invalid_smoke_test.dart

@@ -7,7 +7,6 @@ import 'dart:io';
 import 'package:test/test.dart';
 
 const numRuns = 10;
-final script = Platform.script.resolve('smoke.dart').toString();
 
 void main() {
   group(

pkg/dartdev/test/utils.dart

@@ -5,6 +5,7 @@
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
+import 'dart:isolate';
 
 import 'package:cli_util/cli_logging.dart';
 import 'package:dartdev/dartdev.dart';
@@ -27,6 +28,9 @@ const String dartVersionFilePrefix2_9 = '''
 // @dart = 2.9
 ''';
 
+/// Return the root URI of the SDK by walking up from the pkg/dartdev folder.
+final sdkRootUri = resolveDartDevUri('../../');
+
 void initGlobalState() {
   log = Logger.standard();
 }
@@ -273,29 +277,8 @@ class TestProject {
     );
   }
 
-  String? _sdkRootPath;
-
-  /// Return the root of the SDK.
-  String get sdkRootPath {
-    if (_sdkRootPath == null) {
-      // Assumes the script importing this one is somewhere under the SDK.
-      String current = path.canonicalize(Platform.script.toFilePath());
-      do {
-        String tryDir = path.dirname(current);
-        if (File(path.join(tryDir, 'pkg', 'dartdev', 'bin', 'dartdev.dart'))
-            .existsSync()) {
-          _sdkRootPath = tryDir;
-          return _sdkRootPath!;
-        }
-        current = tryDir;
-      } while (path.dirname(current) != current);
-      throw StateError('can not find SDK repository root');
-    }
-    return _sdkRootPath!;
-  }
-
   String get absolutePathToDartdevFile =>
-      path.join(sdkRootPath, 'pkg', 'dartdev', 'bin', 'dartdev.dart');
+      sdkRootUri.resolve('pkg/dartdev/bin/dartdev.dart').toFilePath();
 
   Directory? findDirectory(String name) {
     var directory = Directory(path.join(dir.path, name));
@@ -356,3 +339,10 @@ String replacePathsWithMatchingCase(String input, {required String filePath}) {
     filePath,
   );
 }
+
+/// Resolves a relative URI from the pkg/dartdev folder.
+Uri resolveDartDevUri(String path) {
+  final dartDevLibUri =
+      Isolate.resolvePackageUriSync(Uri.parse('package:dartdev/'));
+  return dartDevLibUri!.resolve('../$path');
+}