Move NameFilter to its own file so it can be conveniently reused.

pkg/analyzer/test/src/summary/prelink_test.dart

Index: pkg/analyzer/test/src/summary/prelink_test.dart
diff --git a/pkg/analyzer/test/src/summary/prelink_test.dart b/pkg/analyzer/test/src/summary/prelink_test.dart
deleted file mode 100644
index b3a1ba0955d38934f47c58f754a5a4ccfde5765f..0000000000000000000000000000000000000000
--- a/pkg/analyzer/test/src/summary/prelink_test.dart
+++ /dev/null
@@ -1,213 +0,0 @@
-// Copyright (c) 2016, 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 'package:analyzer/src/summary/format.dart';
-import 'package:analyzer/src/summary/prelink.dart';
-import 'package:unittest/unittest.dart';
-
-import '../../reflective_tests.dart';
-
-main() {
-  groupSep = ' | ';
-  runReflectiveTests(NameFilterTest);
-}
-
-class MockUnlinkedCombinator implements UnlinkedCombinator {
-  @override
-  final List<String> hides;
-
-  @override
-  final List<String> shows;
-
-  MockUnlinkedCombinator(
-      {this.hides: const <String>[], this.shows: const <String>[]});
-
-  @override
-  Map<String, Object> toMap() {
-    fail('toMap() called unexpectedly');
-    return null;
-  }
-}
-
-@reflectiveTest
-class NameFilterTest {
-  test_accepts_accessors_hide() {
-    NameFilter filter = new NameFilter.forCombinator(
-        new MockUnlinkedCombinator(hides: ['bar']));
-    expect(filter.accepts('foo'), isTrue);
-    expect(filter.accepts('foo='), isTrue);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('bar='), isFalse);
-  }
-
-  test_accepts_accessors_show() {
-    NameFilter filter = new NameFilter.forCombinator(
-        new MockUnlinkedCombinator(shows: ['foo']));
-    expect(filter.accepts('foo'), isTrue);
-    expect(filter.accepts('foo='), isTrue);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('bar='), isFalse);
-  }
-
-  test_forCombinator_hide() {
-    NameFilter filter = new NameFilter.forCombinator(
-        new MockUnlinkedCombinator(hides: ['foo', 'bar']));
-    expect(filter.accepts('foo'), isFalse);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('baz'), isTrue);
-    expect(filter.shownNames, isNull);
-    expect(filter.hiddenNames, isNotNull);
-    expect(filter.hiddenNames, ['foo', 'bar'].toSet());
-  }
-
-  test_forCombinator_show() {
-    NameFilter filter = new NameFilter.forCombinator(
-        new MockUnlinkedCombinator(shows: ['foo', 'bar']));
-    expect(filter.accepts('foo'), isTrue);
-    expect(filter.accepts('bar'), isTrue);
-    expect(filter.accepts('baz'), isFalse);
-    expect(filter.hiddenNames, isNull);
-    expect(filter.shownNames, isNotNull);
-    expect(filter.shownNames, ['foo', 'bar'].toSet());
-  }
-
-  test_forCombinators() {
-    NameFilter filter = new NameFilter.forCombinators([
-      new MockUnlinkedCombinator(hides: ['foo']),
-      new MockUnlinkedCombinator(hides: ['bar'])
-    ]);
-    expect(filter.accepts('foo'), isFalse);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('baz'), isTrue);
-    expect(filter.shownNames, isNull);
-    expect(filter.hiddenNames, isNotNull);
-    expect(filter.hiddenNames, ['foo', 'bar'].toSet());
-  }
-
-  test_identity() {
-    expect(NameFilter.identity.accepts('foo'), isTrue);
-    expect(NameFilter.identity.hiddenNames, isNotNull);
-    expect(NameFilter.identity.hiddenNames, isEmpty);
-    expect(NameFilter.identity.shownNames, isNull);
-  }
-
-  test_merge_hides_hides() {
-    NameFilter filter =
-        new NameFilter.forCombinator(new MockUnlinkedCombinator(hides: ['foo']))
-            .merge(new NameFilter.forCombinator(
-                new MockUnlinkedCombinator(hides: ['bar'])));
-    expect(filter.accepts('foo'), isFalse);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('baz'), isTrue);
-    expect(filter.shownNames, isNull);
-    expect(filter.hiddenNames, isNotNull);
-    expect(filter.hiddenNames, ['foo', 'bar'].toSet());
-  }
-
-  test_merge_hides_identity() {
-    NameFilter filter = new NameFilter.forCombinator(
-            new MockUnlinkedCombinator(hides: ['foo', 'bar']))
-        .merge(NameFilter.identity);
-    expect(filter.accepts('foo'), isFalse);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('baz'), isTrue);
-    expect(filter.shownNames, isNull);
-    expect(filter.hiddenNames, isNotNull);
-    expect(filter.hiddenNames, ['foo', 'bar'].toSet());
-  }
-
-  test_merge_hides_shows() {
-    NameFilter filter = new NameFilter.forCombinator(
-        new MockUnlinkedCombinator(hides: ['bar', 'baz'])).merge(
-        new NameFilter.forCombinator(
-            new MockUnlinkedCombinator(shows: ['foo', 'bar'])));
-    expect(filter.accepts('foo'), isTrue);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('baz'), isFalse);
-    expect(filter.hiddenNames, isNull);
-    expect(filter.shownNames, isNotNull);
-    expect(filter.shownNames, ['foo'].toSet());
-  }
-
-  test_merge_identity_hides() {
-    NameFilter filter = NameFilter.identity.merge(new NameFilter.forCombinator(
-        new MockUnlinkedCombinator(hides: ['foo', 'bar'])));
-    expect(filter.accepts('foo'), isFalse);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('baz'), isTrue);
-    expect(filter.shownNames, isNull);
-    expect(filter.hiddenNames, isNotNull);
-    expect(filter.hiddenNames, ['foo', 'bar'].toSet());
-  }
-
-  test_merge_identity_identity() {
-    NameFilter filter = NameFilter.identity.merge(NameFilter.identity);
-    expect(filter.accepts('foo'), isTrue);
-    expect(filter.hiddenNames, isNotNull);
-    expect(filter.hiddenNames, isEmpty);
-    expect(filter.shownNames, isNull);
-  }
-
-  test_merge_identity_shows() {
-    NameFilter filter = NameFilter.identity.merge(new NameFilter.forCombinator(
-        new MockUnlinkedCombinator(shows: ['foo', 'bar'])));
-    expect(filter.accepts('foo'), isTrue);
-    expect(filter.accepts('bar'), isTrue);
-    expect(filter.accepts('baz'), isFalse);
-    expect(filter.hiddenNames, isNull);
-    expect(filter.shownNames, isNotNull);
-    expect(filter.shownNames, ['foo', 'bar'].toSet());
-  }
-
-  test_merge_shows_hides() {
-    NameFilter filter = new NameFilter.forCombinator(
-        new MockUnlinkedCombinator(shows: ['foo', 'bar'])).merge(
-        new NameFilter.forCombinator(
-            new MockUnlinkedCombinator(hides: ['bar', 'baz'])));
-    expect(filter.accepts('foo'), isTrue);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('baz'), isFalse);
-    expect(filter.hiddenNames, isNull);
-    expect(filter.shownNames, isNotNull);
-    expect(filter.shownNames, ['foo'].toSet());
-  }
-
-  test_merge_shows_identity() {
-    NameFilter filter = new NameFilter.forCombinator(
-            new MockUnlinkedCombinator(shows: ['foo', 'bar']))
-        .merge(NameFilter.identity);
-    expect(filter.accepts('foo'), isTrue);
-    expect(filter.accepts('bar'), isTrue);
-    expect(filter.accepts('baz'), isFalse);
-    expect(filter.hiddenNames, isNull);
-    expect(filter.shownNames, isNotNull);
-    expect(filter.shownNames, ['foo', 'bar'].toSet());
-  }
-
-  test_merge_shows_shows() {
-    NameFilter filter = new NameFilter.forCombinator(
-        new MockUnlinkedCombinator(shows: ['foo', 'bar'])).merge(
-        new NameFilter.forCombinator(
-            new MockUnlinkedCombinator(shows: ['bar', 'baz'])));
-    expect(filter.accepts('foo'), isFalse);
-    expect(filter.accepts('bar'), isTrue);
-    expect(filter.accepts('baz'), isFalse);
-    expect(filter.hiddenNames, isNull);
-    expect(filter.shownNames, isNotNull);
-    expect(filter.shownNames, ['bar'].toSet());
-  }
-
-  test_merge_shows_shows_emptyResult() {
-    NameFilter filter =
-        new NameFilter.forCombinator(new MockUnlinkedCombinator(shows: ['foo']))
-            .merge(new NameFilter.forCombinator(
-                new MockUnlinkedCombinator(shows: ['bar'])));
-    expect(filter.accepts('foo'), isFalse);
-    expect(filter.accepts('bar'), isFalse);
-    expect(filter.accepts('baz'), isFalse);
-    expect(filter.hiddenNames, isNull);
-    expect(filter.shownNames, isNotNull);
-    expect(filter.shownNames, isEmpty);
-  }
-}