Added back helper file accidentally deleted during test block 219 migration.

tests/lib/mirrors/equality_test.dart

-// Copyright (c) 2013, 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.
-
-library test.class_equality_test;
-
-@MirrorsUsed(targets: "test.class_equality_test")
-import 'dart:mirrors';
-
-import 'package:expect/expect.dart';
-
-class A<T> {}
-
-class B extends A<int> {}
-
-class BadEqualityHash {
-  int count = 0;
-  bool operator ==(other) => true;
-  int get hashCode => count++;
-}
-
-typedef bool Predicate(Object o);
-Predicate somePredicate;
-
-checkEquality(List<Map> equivalenceClasses) {
-  for (var equivalenceClass in equivalenceClasses) {
-    equivalenceClass.forEach((name, member) {
-      equivalenceClass.forEach((otherName, otherMember) {
-        // Reflexivity, symmetry and transitivity.
-        Expect.equals(member, otherMember, "$name == $otherName");
-        Expect.equals(member.hashCode, otherMember.hashCode,
-            "$name.hashCode == $otherName.hashCode");
-      });
-      for (var otherEquivalenceClass in equivalenceClasses) {
-        if (otherEquivalenceClass == equivalenceClass) continue;
-        otherEquivalenceClass.forEach((otherName, otherMember) {
-          Expect.notEquals(
-              member, otherMember, "$name != $otherName"); // Exclusion.
-          // Hash codes may or may not be equal.
-        });
-      }
-    });
-  }
-}
-
-void subroutine() {}
-
-main() {
-  LibraryMirror thisLibrary = currentMirrorSystem()
-      .findLibrary(const Symbol('test.class_equality_test'));
-
-  var o1 = new Object();
-  var o2 = new Object();
-
-  var badEqualityHash1 = new BadEqualityHash();
-  var badEqualityHash2 = new BadEqualityHash();
-
-  checkEquality([
-    {'reflect(o1)': reflect(o1), 'reflect(o1), again': reflect(o1)},
-    {'reflect(o2)': reflect(o2), 'reflect(o2), again': reflect(o2)},
-    {
-      'reflect(badEqualityHash1)': reflect(badEqualityHash1),
-      'reflect(badEqualityHash1), again': reflect(badEqualityHash1)
-    },
-    {
-      'reflect(badEqualityHash2)': reflect(badEqualityHash2),
-      'reflect(badEqualityHash2), again': reflect(badEqualityHash2)
-    },
-    {'reflect(true)': reflect(true), 'reflect(true), again': reflect(true)},
-    {'reflect(false)': reflect(false), 'reflect(false), again': reflect(false)},
-    {'reflect(null)': reflect(null), 'reflect(null), again': reflect(null)},
-    {
-      'reflect(3.5+4.5)': reflect(3.5 + 4.5),
-      'reflect(6.5+1.5)': reflect(6.5 + 1.5)
-    },
-    {'reflect(3+4)': reflect(3 + 4), 'reflect(6+1)': reflect(6 + 1)},
-    {'reflect("foo")': reflect("foo"), 'reflect("foo"), again': reflect("foo")},
-    {
-      'currentMirrorSystem().voidType': currentMirrorSystem().voidType,
-      'thisLibrary.declarations[#subroutine].returnType':
-          (thisLibrary.declarations[#subroutine] as MethodMirror).returnType
-    },
-    {
-      'currentMirrorSystem().dynamicType': currentMirrorSystem().dynamicType,
-      'thisLibrary.declarations[#main].returnType':
-          (thisLibrary.declarations[#main] as MethodMirror).returnType
-    },
-    {
-      'reflectClass(A)': reflectClass(A),
-      'thisLibrary.declarations[#A]': thisLibrary.declarations[#A],
-      'reflect(new A<int>()).type.originalDeclaration':
-          reflect(new A<int>()).type.originalDeclaration
-    },
-    {
-      'reflectClass(B).superclass': reflectClass(B).superclass,
-      'reflect(new A<int>()).type': reflect(new A<int>()).type
-    },
-    {
-      'reflectClass(B)': reflectClass(B),
-      'thisLibrary.declarations[#B]': thisLibrary.declarations[#B],
-      'reflect(new B()).type': reflect(new B()).type
-    },
-    {
-      'reflectClass(BadEqualityHash).declarations[#==]':
-          reflectClass(BadEqualityHash).declarations[#==],
-      'reflect(new BadEqualityHash()).type.declarations[#==]':
-          reflect(new BadEqualityHash()).type.declarations[#==]
-    },
-    {
-      'reflectClass(BadEqualityHash).declarations[#==].parameters[0]':
-          (reflectClass(BadEqualityHash).declarations[#==] as MethodMirror)
-              .parameters[0],
-      'reflect(new BadEqualityHash()).type.declarations[#==].parameters[0]':
-          (reflect(new BadEqualityHash()).type.declarations[#==]
-                  as MethodMirror)
-              .parameters[0]
-    },
-    {
-      'reflectClass(BadEqualityHash).declarations[#count]':
-          reflectClass(BadEqualityHash).declarations[#count],
-      'reflect(new BadEqualityHash()).type.declarations[#count]':
-          reflect(new BadEqualityHash()).type.declarations[#count]
-    },
-    {
-      'reflectType(Predicate)': reflectType(Predicate),
-      'thisLibrary.declarations[#somePredicate].type':
-          (thisLibrary.declarations[#somePredicate] as VariableMirror).type
-    },
-    {
-      'reflectType(Predicate).referent':
-          (reflectType(Predicate) as TypedefMirror).referent,
-      'thisLibrary.declarations[#somePredicate].type.referent':
-          ((thisLibrary.declarations[#somePredicate] as VariableMirror).type
-                  as TypedefMirror)
-              .referent
-    },
-    {
-      'reflectClass(A).typeVariables.single':
-          reflectClass(A).typeVariables.single,
-      'reflect(new A<int>()).type.originalDeclaration.typeVariables.single':
-          reflect(new A<int>()).type.originalDeclaration.typeVariables.single
-    },
-    {'currentMirrorSystem()': currentMirrorSystem()},
-    {'currentMirrorSystem().isolate': currentMirrorSystem().isolate},
-    {
-      'thisLibrary': thisLibrary,
-      'reflectClass(A).owner': reflectClass(A).owner,
-      'reflectClass(B).owner': reflectClass(B).owner,
-      'reflect(new A()).type.owner': reflect(new A()).type.owner,
-      'reflect(new B()).type.owner': reflect(new B()).type.owner
-    },
-  ]);
-}