Partial implementation of the 'setAnalysisRoots' API.

pkg/analysis_server/test/mocks.dart

Index: pkg/analysis_server/test/mocks.dart
diff --git a/pkg/analysis_server/test/mocks.dart b/pkg/analysis_server/test/mocks.dart
index 2940115619166587ef346e0661790d39c600cc14..1d0082ceb999cfe4605c4b955cadb3129499e026 100644
--- a/pkg/analysis_server/test/mocks.dart
+++ b/pkg/analysis_server/test/mocks.dart
@@ -203,3 +203,85 @@ class MockAnalysisContext extends Mock implements AnalysisContext {
 class MockSource extends Mock implements Source {
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }
+
+
+/**
+ * A [Matcher] that check that the given [Response] has an expected identifier
+ * and no error.
+ */
+Matcher isResponseSuccess(String id) => new _IsResponseSuccess(id);
+
+/**
+ * A [Matcher] that check that there are no `error` in a given [Response].
+ */
+class _IsResponseSuccess extends Matcher {
+  final String _id;
+
+  _IsResponseSuccess(this._id);
+
+  @override
+  Description describe(Description description) {
+    return description.addDescriptionOf(
+        'response with identifier "$_id" and without error');
+  }
+
+  @override
+  bool matches(item, Map matchState) {
+    Response response = item;
+    return response.id == _id && response.error == null;
+  }
+
+  @override
+  Description describeMismatch(item, Description mismatchDescription,
+                               Map matchState, bool verbose) {
+    Response response = item;
+    var id = response.id;
+    RequestError error = response.error;
+    mismatchDescription.add('has identifier "$id"');
+    if (error != null) {
+      mismatchDescription.add(' and has error $error');
+    }
+    return mismatchDescription;
+  }
+}
+
+
+/**
+ * A [Matcher] that check that the given [Response] has an expected identifier
+ * and has an error.
+ */
+Matcher isResponseFailure(String id) => new _IsResponseFailure(id);
+
+/**
+ * A [Matcher] that check that there are no `error` in a given [Response].
+ */
+class _IsResponseFailure extends Matcher {
+  final String _id;
+
+  _IsResponseFailure(this._id);
+
+  @override
+  Description describe(Description description) {
+    return description.addDescriptionOf(
+        'response with identifier "$_id" and an error');
+  }
+
+  @override
+  bool matches(item, Map matchState) {
+    Response response = item;
+    return response.id == _id && response.error != null;
+  }
+
+  @override
+  Description describeMismatch(item, Description mismatchDescription,
+                               Map matchState, bool verbose) {
+    Response response = item;
+    var id = response.id;
+    RequestError error = response.error;
+    mismatchDescription.add('has identifier "$id"');
+    if (error == null) {
+      mismatchDescription.add(' and has no error');
+    }
+    return mismatchDescription;
+  }
+}