[cfe] Add test for the id testing system.

Change-Id: Ie4f3042d4fd0f78e55cd672947fde3fab7950fb3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/108802
Reviewed-by: Jens Johansen <[email protected]>
Commit-Queue: Johnni Winther <[email protected]>

Author: johnniwinther

pkg/front_end/test/id_testing/data/declarations.dart

@@ -0,0 +1,48 @@
+// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/*member: main:main*/
+main() {
+  // ignore: unused_element
+  /*main.localFunction*/ localFunction() {}
+
+  /*main.<anonymous>*/
+  () {};
+}
+
+/*member: field:field*/
+var field;
+
+/*member: getter:getter*/
+get getter => null;
+
+/*member: setter=:setter=*/
+set setter(_) {}
+
+/*class: Class:Class*/
+class Class {
+  /*member: Class.:Class.*/
+  Class();
+
+  /*member: Class.constructor:Class.constructor*/
+  factory Class.constructor() => new Class();
+
+  /*member: Class.field:Class.field*/
+  var field;
+
+  /*member: Class.getter:Class.getter*/
+  get getter => null;
+
+  /*member: Class.setter=:Class.setter=*/
+  set setter(_) {}
+
+  /*member: Class.method:Class.method*/
+  void method() {
+    // ignore: unused_element
+    /*Class.method.localFunction*/ localFunction() {}
+
+    /*Class.method.<anonymous>*/
+    () {};
+  }
+}

pkg/front_end/test/id_testing/id_testing_test.dart

@@ -0,0 +1,92 @@
+// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:io' show Directory, Platform;
+import 'package:front_end/src/testing/id.dart' show ActualData, Id;
+import 'package:front_end/src/testing/id_testing.dart'
+    show DataInterpreter, StringDataInterpreter, runTests;
+import 'package:front_end/src/testing/id_testing.dart';
+import 'package:front_end/src/testing/id_testing_helper.dart'
+    show
+        CfeDataExtractor,
+        CompilerResult,
+        DataComputer,
+        defaultCfeConfig,
+        createUriForFileName,
+        onFailure,
+        runTestFor;
+import 'package:front_end/src/testing/id_testing_utils.dart';
+import 'package:kernel/ast.dart'
+    show Class, Member, FunctionDeclaration, FunctionExpression, TreeNode;
+
+main(List<String> args) async {
+  Directory dataDir = new Directory.fromUri(Platform.script.resolve('data'));
+  await runTests(dataDir,
+      args: args,
+      supportedMarkers: [cfeMarker],
+      createUriForFileName: createUriForFileName,
+      onFailure: onFailure,
+      runTest: runTestFor(const MemberNameDataComputer(), [defaultCfeConfig]));
+}
+
+class MemberNameDataComputer extends DataComputer<String> {
+  const MemberNameDataComputer();
+
+  @override
+  void computeMemberData(CompilerResult compilerResult, Member member,
+      Map<Id, ActualData<String>> actualMap,
+      {bool verbose}) {
+    member.accept(new MemberNameDataExtractor(compilerResult, actualMap));
+  }
+
+  @override
+  void computeClassData(CompilerResult compilerResult, Class cls,
+      Map<Id, ActualData<String>> actualMap,
+      {bool verbose}) {
+    new MemberNameDataExtractor(compilerResult, actualMap).computeForClass(cls);
+  }
+
+  @override
+  DataInterpreter<String> get dataValidator => const StringDataInterpreter();
+}
+
+class MemberNameDataExtractor extends CfeDataExtractor<String> {
+  MemberNameDataExtractor(
+      CompilerResult compilerResult, Map<Id, ActualData<String>> actualMap)
+      : super(compilerResult, actualMap);
+
+  String computeClassName(Class cls) {
+    return cls.name;
+  }
+
+  String computeMemberName(Member member) {
+    if (member.enclosingClass != null) {
+      return '${computeClassName(member.enclosingClass)}.'
+          '${getMemberName(member)}';
+    }
+    return getMemberName(member);
+  }
+
+  @override
+  String computeClassValue(Id id, Class cls) {
+    return computeClassName(cls);
+  }
+
+  @override
+  String computeNodeValue(Id id, TreeNode node) {
+    if (node is FunctionDeclaration) {
+      return '${computeMemberName(getEnclosingMember(node))}.'
+          '${node.variable.name}';
+    } else if (node is FunctionExpression) {
+      return '${computeMemberName(getEnclosingMember(node))}.'
+          '<anonymous>';
+    }
+    return null;
+  }
+
+  @override
+  String computeMemberValue(Id id, Member member) {
+    return computeMemberName(member);
+  }
+}