expose InSummarySource with its summaryPath

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

+// 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.
+
+library analyzer.test.src.summary.in_summary_source_test;
+
+import 'package:analyzer/src/generated/source_io.dart';
+import 'package:analyzer/src/summary/idl.dart';
+import 'package:analyzer/src/summary/package_bundle_reader.dart';
+import 'package:unittest/unittest.dart';
+
+import '../../reflective_tests.dart';
+
+main() {
+  groupSep = ' | ';
+  runReflectiveTests(InSummarySourceTest);
+}
+
+@reflectiveTest
+class InSummarySourceTest extends ReflectiveTest {
+  test_InSummarySource() {
+    var sourceFactory = new SourceFactory([
+      new InSummaryPackageUriResolver(new MockSummaryDataStore.fake({
+        'package:foo/foo.dart': 'foo.sum',
+        'package:foo/src/foo_impl.dart': 'foo.sum',
+        'package:bar/baz.dart': 'bar.sum',
+      }))
+    ]);
+
+    InSummarySource source = sourceFactory.forUri('package:foo/foo.dart');
+    expect(source.summaryPath, 'foo.sum');
+
+    source = sourceFactory.forUri('package:foo/src/foo_impl.dart');
+    expect(source.summaryPath, 'foo.sum');
+
+    source = sourceFactory.forUri('package:bar/baz.dart');
+    expect(source.summaryPath, 'bar.sum');
+  }
+}
+
+class MockSummaryDataStore implements SummaryDataStore {
+  final Map<String, LinkedLibrary> linkedMap;
+  final Map<String, UnlinkedUnit> unlinkedMap;
+  final Map<String, String> uriToSummaryPath;
+
+  MockSummaryDataStore(this.linkedMap, this.unlinkedMap, this.uriToSummaryPath);
+
+  factory MockSummaryDataStore.fake(Map<String, String> uriToSummary) {
+    // Create fake unlinked map.
+    // We don't populate the values as it is not needed for the test.
+    var unlinkedMap = new Map<String, UnlinkedUnit>.fromIterable(
+        uriToSummary.keys,
+        value: (k) => null);
+    return new MockSummaryDataStore(null, unlinkedMap, uriToSummary);
+  }
+}