[tools] Add update-release-info (#5643)

script/tool/test/common/package_state_utils_test.dart

@@ -0,0 +1,140 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+import 'package:file/file.dart';
+import 'package:file/memory.dart';
+import 'package:flutter_plugin_tools/src/common/package_state_utils.dart';
+import 'package:test/test.dart';
+
+import '../util.dart';
+
+void main() {
+  late FileSystem fileSystem;
+  late Directory packagesDir;
+
+  setUp(() {
+    fileSystem = MemoryFileSystem();
+    packagesDir = createPackagesDirectory(fileSystem: fileSystem);
+  });
+
+  group('checkPackageChangeState', () {
+    test('reports version change needed for code changes', () async {
+      final RepositoryPackage package =
+          createFakePackage('a_package', packagesDir);
+
+      const List<String> changedFiles = <String>[
+        'packages/a_package/lib/plugin.dart',
+      ];
+
+      final PackageChangeState state = checkPackageChangeState(package,
+          changedPaths: changedFiles,
+          relativePackagePath: 'packages/a_package');
+
+      expect(state.hasChanges, true);
+      expect(state.needsVersionChange, true);
+    });
+
+    test('handles trailing slash on package path', () async {
+      final RepositoryPackage package =
+          createFakePackage('a_package', packagesDir);
+
+      const List<String> changedFiles = <String>[
+        'packages/a_package/lib/plugin.dart',
+      ];
+
+      final PackageChangeState state = checkPackageChangeState(package,
+          changedPaths: changedFiles,
+          relativePackagePath: 'packages/a_package/');
+
+      expect(state.hasChanges, true);
+      expect(state.needsVersionChange, true);
+      expect(state.hasChangelogChange, false);
+    });
+
+    test('does not report version change exempt changes', () async {
+      final RepositoryPackage package =
+          createFakePlugin('a_plugin', packagesDir);
+
+      const List<String> changedFiles = <String>[
+        'packages/a_plugin/example/android/lint-baseline.xml',
+        'packages/a_plugin/example/android/src/androidTest/foo/bar/FooTest.java',
+        'packages/a_plugin/example/ios/RunnerTests/Foo.m',
+        'packages/a_plugin/example/ios/RunnerUITests/info.plist',
+        'packages/a_plugin/tool/a_development_tool.dart',
+        'packages/a_plugin/CHANGELOG.md',
+      ];
+
+      final PackageChangeState state = checkPackageChangeState(package,
+          changedPaths: changedFiles,
+          relativePackagePath: 'packages/a_plugin/');
+
+      expect(state.hasChanges, true);
+      expect(state.needsVersionChange, false);
+      expect(state.hasChangelogChange, true);
+    });
+
+    test('only considers a root "tool" folder to be special', () async {
+      final RepositoryPackage package =
+          createFakePlugin('a_plugin', packagesDir);
+
+      const List<String> changedFiles = <String>[
+        'packages/a_plugin/lib/foo/tool/tool_thing.dart',
+      ];
+
+      final PackageChangeState state = checkPackageChangeState(package,
+          changedPaths: changedFiles,
+          relativePackagePath: 'packages/a_plugin/');
+
+      expect(state.hasChanges, true);
+      expect(state.needsVersionChange, true);
+    });
+
+    test('requires a version change for example main', () async {
+      final RepositoryPackage package =
+          createFakePlugin('a_plugin', packagesDir);
+
+      const List<String> changedFiles = <String>[
+        'packages/a_plugin/example/lib/main.dart',
+      ];
+
+      final PackageChangeState state = checkPackageChangeState(package,
+          changedPaths: changedFiles,
+          relativePackagePath: 'packages/a_plugin/');
+
+      expect(state.hasChanges, true);
+      expect(state.needsVersionChange, true);
+    });
+
+    test('requires a version change for example readme.md', () async {
+      final RepositoryPackage package =
+          createFakePlugin('a_plugin', packagesDir);
+
+      const List<String> changedFiles = <String>[
+        'packages/a_plugin/example/README.md',
+      ];
+
+      final PackageChangeState state = checkPackageChangeState(package,
+          changedPaths: changedFiles,
+          relativePackagePath: 'packages/a_plugin/');
+
+      expect(state.hasChanges, true);
+      expect(state.needsVersionChange, true);
+    });
+
+    test('requires a version change for example example.md', () async {
+      final RepositoryPackage package =
+          createFakePlugin('a_plugin', packagesDir);
+
+      const List<String> changedFiles = <String>[
+        'packages/a_plugin/example/lib/example.md',
+      ];
+
+      final PackageChangeState state = checkPackageChangeState(package,
+          changedPaths: changedFiles,
+          relativePackagePath: 'packages/a_plugin/');
+
+      expect(state.hasChanges, true);
+      expect(state.needsVersionChange, true);
+    });
+  });
+}