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Unified Diff: pkg/lookup_map/test/lookup_map_test.dart

Issue 1308993008: Add version validation for LookupMap, also add unittest directly in LookupMap (take 2) (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: fix on top of previous CL Created 5 years, 3 months ago
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Index: pkg/lookup_map/test/lookup_map_test.dart
diff --git a/pkg/lookup_map/test/lookup_map_test.dart b/pkg/lookup_map/test/lookup_map_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..ce001dd60303ee5789e8112f4cfc625369b5bf95
--- /dev/null
+++ b/pkg/lookup_map/test/lookup_map_test.dart
@@ -0,0 +1,74 @@
+// Copyright (c) 2015, 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:lookup_map/lookup_map.dart';
+
+import 'package:test/test.dart';
+
+class Key {
+ final int id;
+ const Key(this.id);
+}
+
+class A{}
+const B = const Key(1);
+class C{}
+
+main() {
+ test('entries constructor', () {
+ var m = const LookupMap(const [
+ A, "the-text-for-A",
+ B, "the-text-for-B",
+ 1.2, "the-text-for-1.2"]);
+ expect(m[A], 'the-text-for-A');
+ expect(m[B], 'the-text-for-B');
+ expect(m[1.2], 'the-text-for-1.2');
+ expect(m[C], null);
+ expect(m[1.3], null);
+ });
+
+ test('pair constructor', () {
+ var m = const LookupMap.pair(A, "the-text-for-A");
+ expect(m[A], 'the-text-for-A');
+ expect(m[B], null);
+ });
+
+ test('nested lookup', () {
+ var m = const LookupMap(const [],
+ const [const LookupMap.pair(A, "the-text-for-A")]);
+ expect(m[A], 'the-text-for-A');
+ expect(m[B], null);
+ });
+
+ test('entry shadows nested maps', () {
+ var m = const LookupMap(const [
+ A, "the-text-for-A2",
+ ], const [
+ const LookupMap.pair(A, "the-text-for-A1"),
+ ]);
+ expect(m[A], 'the-text-for-A2');
+ });
+
+ test('nested maps shadow in order', () {
+ var m = const LookupMap(const [ ], const [
+ const LookupMap.pair(A, "the-text-for-A1"),
+ const LookupMap.pair(B, "the-text-for-B2"),
+ const LookupMap.pair(A, "the-text-for-A2"),
+ const LookupMap.pair(B, "the-text-for-B1"),
+ ]);
+ expect(m[A], 'the-text-for-A2');
+ expect(m[B], 'the-text-for-B1');
+ });
+
+ // This test would fail if dart2js has a bug, but we keep it here for our
+ // sanity.
+ test('reachable lookups are not tree-shaken', () {
+ var m = const LookupMap(const [
+ A, B,
+ B, C,
+ C, 3.4,
+ ]);
+ expect(m[m[m[A]]], 3.4);
+ });
+}
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