1 files changed, 69 insertions, 0 deletions
diff --git a/impl_core/src/test/java/io/opencensus/implcore/stats/MeasureToViewMapTest.java b/impl_core/src/test/java/io/opencensus/implcore/stats/MeasureToViewMapTest.java
new file mode 100644
index 00000000..25f33a94
--- /dev/null
+++ b/impl_core/src/test/java/io/opencensus/implcore/stats/MeasureToViewMapTest.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2017, OpenCensus Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.opencensus.implcore.stats;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import io.opencensus.common.Timestamp;
+import io.opencensus.implcore.internal.CurrentState.State;
+import io.opencensus.stats.Aggregation.Mean;
+import io.opencensus.stats.Measure;
+import io.opencensus.stats.View;
+import io.opencensus.stats.View.AggregationWindow.Cumulative;
+import io.opencensus.stats.View.Name;
+import io.opencensus.stats.ViewData;
+import io.opencensus.stats.ViewData.AggregationWindowData.CumulativeData;
+import io.opencensus.tags.TagKey;
+import io.opencensus.testing.common.TestClock;
+import java.util.Arrays;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Tests for {@link MeasureToViewMap}. */
+@RunWith(JUnit4.class)
+public class MeasureToViewMapTest {
+
+  private static final Measure MEASURE =
+      Measure.MeasureDouble.create("my measurement", "measurement description", "By");
+
+  private static final Name VIEW_NAME = View.Name.create("my view");
+
+  private static final Cumulative CUMULATIVE = Cumulative.create();
+
+  private static final View VIEW =
+      View.create(
+          VIEW_NAME,
+          "view description",
+          MEASURE,
+          Mean.create(),
+          Arrays.asList(TagKey.create("my key")),
+          CUMULATIVE);
+
+  @Test
+  public void testRegisterAndGetView() {
+    MeasureToViewMap measureToViewMap = new MeasureToViewMap();
+    TestClock clock = TestClock.create(Timestamp.create(10, 20));
+    measureToViewMap.registerView(VIEW, clock);
+    clock.setTime(Timestamp.create(30, 40));
+    ViewData viewData = measureToViewMap.getView(VIEW_NAME, clock, State.ENABLED);
+    assertThat(viewData.getView()).isEqualTo(VIEW);
+    assertThat(viewData.getWindowData())
+        .isEqualTo(CumulativeData.create(Timestamp.create(10, 20), Timestamp.create(30, 40)));
+    assertThat(viewData.getAggregationMap()).isEmpty();
+  }
+}