1 files changed, 159 insertions, 0 deletions
diff --git a/impl_core/src/test/java/io/opencensus/implcore/stats/MeasureMapInternalTest.java b/impl_core/src/test/java/io/opencensus/implcore/stats/MeasureMapInternalTest.java
new file mode 100644
index 00000000..19e8a6c5
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+++ b/impl_core/src/test/java/io/opencensus/implcore/stats/MeasureMapInternalTest.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2016-17, 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 com.google.common.collect.Lists;
+import io.opencensus.stats.Measure;
+import io.opencensus.stats.Measure.MeasureDouble;
+import io.opencensus.stats.Measure.MeasureLong;
+import io.opencensus.stats.Measurement;
+import io.opencensus.stats.Measurement.MeasurementDouble;
+import io.opencensus.stats.Measurement.MeasurementLong;
+import java.util.ArrayList;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Tests for {@link MeasureMapInternal}. */
+@RunWith(JUnit4.class)
+public class MeasureMapInternalTest {
+
+  @Test
+  public void testPutDouble() {
+    MeasureMapInternal metrics = MeasureMapInternal.builder().put(M1, 44.4).build();
+    assertContains(metrics, MeasurementDouble.create(M1, 44.4));
+  }
+
+  @Test
+  public void testPutLong() {
+    MeasureMapInternal metrics = MeasureMapInternal.builder().put(M3, 9999L).put(M4, 8888L).build();
+    assertContains(metrics, MeasurementLong.create(M3, 9999L), MeasurementLong.create(M4, 8888L));
+  }
+
+  @Test
+  public void testPutAttachment() {
+    MeasureMapInternal metrics =
+        MeasureMapInternal.builder()
+            .putAttachment("k1", "v1")
+            .putAttachment("k2", "v2")
+            .putAttachment("k1", "v3")
+            .build();
+    assertThat(metrics.getAttachments()).containsExactly("k1", "v3", "k2", "v2");
+    assertContains(metrics);
+  }
+
+  @Test
+  public void testCombination() {
+    MeasureMapInternal metrics =
+        MeasureMapInternal.builder()
+            .put(M1, 44.4)
+            .put(M2, 66.6)
+            .put(M3, 9999L)
+            .put(M4, 8888L)
+            .build();
+    assertContains(
+        metrics,
+        MeasurementDouble.create(M1, 44.4),
+        MeasurementDouble.create(M2, 66.6),
+        MeasurementLong.create(M3, 9999L),
+        MeasurementLong.create(M4, 8888L));
+  }
+
+  @Test
+  public void testBuilderEmpty() {
+    MeasureMapInternal metrics = MeasureMapInternal.builder().build();
+    assertContains(metrics);
+  }
+
+  @Test
+  public void testBuilder() {
+    ArrayList<Measurement> expected = new ArrayList<Measurement>(10);
+    MeasureMapInternal.Builder builder = MeasureMapInternal.builder();
+    for (int i = 1; i <= 10; i++) {
+      expected.add(MeasurementDouble.create(makeSimpleMeasureDouble("m" + i), i * 11.1));
+      builder.put(makeSimpleMeasureDouble("m" + i), i * 11.1);
+      assertContains(builder.build(), expected.toArray(new Measurement[i]));
+    }
+  }
+
+  @Test
+  public void testDuplicateMeasureDoubles() {
+    assertContains(
+        MeasureMapInternal.builder().put(M1, 1.0).put(M1, 2.0).build(),
+        MeasurementDouble.create(M1, 2.0));
+    assertContains(
+        MeasureMapInternal.builder().put(M1, 1.0).put(M1, 2.0).put(M1, 3.0).build(),
+        MeasurementDouble.create(M1, 3.0));
+    assertContains(
+        MeasureMapInternal.builder().put(M1, 1.0).put(M2, 2.0).put(M1, 3.0).build(),
+        MeasurementDouble.create(M1, 3.0),
+        MeasurementDouble.create(M2, 2.0));
+    assertContains(
+        MeasureMapInternal.builder().put(M1, 1.0).put(M1, 2.0).put(M2, 2.0).build(),
+        MeasurementDouble.create(M1, 2.0),
+        MeasurementDouble.create(M2, 2.0));
+  }
+
+  @Test
+  public void testDuplicateMeasureLongs() {
+    assertContains(
+        MeasureMapInternal.builder().put(M3, 100L).put(M3, 100L).build(),
+        MeasurementLong.create(M3, 100L));
+    assertContains(
+        MeasureMapInternal.builder().put(M3, 100L).put(M3, 200L).put(M3, 300L).build(),
+        MeasurementLong.create(M3, 300L));
+    assertContains(
+        MeasureMapInternal.builder().put(M3, 100L).put(M4, 200L).put(M3, 300L).build(),
+        MeasurementLong.create(M3, 300L),
+        MeasurementLong.create(M4, 200L));
+    assertContains(
+        MeasureMapInternal.builder().put(M3, 100L).put(M3, 200L).put(M4, 200L).build(),
+        MeasurementLong.create(M3, 200L),
+        MeasurementLong.create(M4, 200L));
+  }
+
+  @Test
+  public void testDuplicateMeasures() {
+    assertContains(
+        MeasureMapInternal.builder().put(M3, 100L).put(M1, 1.0).put(M3, 300L).build(),
+        MeasurementLong.create(M3, 300L),
+        MeasurementDouble.create(M1, 1.0));
+    assertContains(
+        MeasureMapInternal.builder().put(M2, 2.0).put(M3, 100L).put(M2, 3.0).build(),
+        MeasurementDouble.create(M2, 3.0),
+        MeasurementLong.create(M3, 100L));
+  }
+
+  private static final MeasureDouble M1 = makeSimpleMeasureDouble("m1");
+  private static final MeasureDouble M2 = makeSimpleMeasureDouble("m2");
+  private static final MeasureLong M3 = makeSimpleMeasureLong("m3");
+  private static final MeasureLong M4 = makeSimpleMeasureLong("m4");
+
+  private static MeasureDouble makeSimpleMeasureDouble(String measure) {
+    return Measure.MeasureDouble.create(measure, measure + " description", "1");
+  }
+
+  private static MeasureLong makeSimpleMeasureLong(String measure) {
+    return Measure.MeasureLong.create(measure, measure + " description", "1");
+  }
+
+  private static void assertContains(MeasureMapInternal metrics, Measurement... measurements) {
+    assertThat(Lists.newArrayList(metrics.iterator())).containsExactly((Object[]) measurements);
+  }
+}