1 files changed, 152 insertions, 0 deletions
diff --git a/api/src/test/java/io/opencensus/common/DurationTest.java b/api/src/test/java/io/opencensus/common/DurationTest.java
new file mode 100644
index 00000000..ea636ca0
--- /dev/null
+++ b/api/src/test/java/io/opencensus/common/DurationTest.java
@@ -0,0 +1,152 @@
+/*
+ * 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.common;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Unit tests for {@link Duration}. */
+@RunWith(JUnit4.class)
+public class DurationTest {
+  @Rule public ExpectedException thrown = ExpectedException.none();
+
+  @Test
+  public void testDurationCreate() {
+    assertThat(Duration.create(24, 42).getSeconds()).isEqualTo(24);
+    assertThat(Duration.create(24, 42).getNanos()).isEqualTo(42);
+    assertThat(Duration.create(-24, -42).getSeconds()).isEqualTo(-24);
+    assertThat(Duration.create(-24, -42).getNanos()).isEqualTo(-42);
+    assertThat(Duration.create(315576000000L, 999999999).getSeconds()).isEqualTo(315576000000L);
+    assertThat(Duration.create(315576000000L, 999999999).getNanos()).isEqualTo(999999999);
+    assertThat(Duration.create(-315576000000L, -999999999).getSeconds()).isEqualTo(-315576000000L);
+    assertThat(Duration.create(-315576000000L, -999999999).getNanos()).isEqualTo(-999999999);
+  }
+
+  @Test
+  public void create_SecondsTooLow() {
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("'seconds' is less than minimum (-315576000000): -315576000001");
+    Duration.create(-315576000001L, 0);
+  }
+
+  @Test
+  public void create_SecondsTooHigh() {
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("'seconds' is greater than maximum (315576000000): 315576000001");
+    Duration.create(315576000001L, 0);
+  }
+
+  @Test
+  public void create_NanosTooLow() {
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("'nanos' is less than minimum (-999999999): -1000000000");
+    Duration.create(0, -1000000000);
+  }
+
+  @Test
+  public void create_NanosTooHigh() {
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("'nanos' is greater than maximum (999999999): 1000000000");
+    Duration.create(0, 1000000000);
+  }
+
+  @Test
+  public void create_NegativeSecondsPositiveNanos() {
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("'seconds' and 'nanos' have inconsistent sign: seconds=-1, nanos=1");
+    Duration.create(-1, 1);
+  }
+
+  @Test
+  public void create_PositiveSecondsNegativeNanos() {
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("'seconds' and 'nanos' have inconsistent sign: seconds=1, nanos=-1");
+    Duration.create(1, -1);
+  }
+
+  @Test
+  public void testDurationFromMillis() {
+    assertThat(Duration.fromMillis(0)).isEqualTo(Duration.create(0, 0));
+    assertThat(Duration.fromMillis(987)).isEqualTo(Duration.create(0, 987000000));
+    assertThat(Duration.fromMillis(3456)).isEqualTo(Duration.create(3, 456000000));
+  }
+
+  @Test
+  public void testDurationFromMillisNegative() {
+    assertThat(Duration.fromMillis(-1)).isEqualTo(Duration.create(0, -1000000));
+    assertThat(Duration.fromMillis(-999)).isEqualTo(Duration.create(0, -999000000));
+    assertThat(Duration.fromMillis(-1000)).isEqualTo(Duration.create(-1, 0));
+    assertThat(Duration.fromMillis(-3456)).isEqualTo(Duration.create(-3, -456000000));
+  }
+
+  @Test
+  public void fromMillis_TooLow() {
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("'seconds' is less than minimum (-315576000000): -315576000001");
+    Duration.fromMillis(-315576000001000L);
+  }
+
+  @Test
+  public void fromMillis_TooHigh() {
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("'seconds' is greater than maximum (315576000000): 315576000001");
+    Duration.fromMillis(315576000001000L);
+  }
+
+  @Test
+  public void duration_CompareLength() {
+    assertThat(Duration.create(0, 0).compareTo(Duration.create(0, 0))).isEqualTo(0);
+    assertThat(Duration.create(24, 42).compareTo(Duration.create(24, 42))).isEqualTo(0);
+    assertThat(Duration.create(-24, -42).compareTo(Duration.create(-24, -42))).isEqualTo(0);
+    assertThat(Duration.create(25, 42).compareTo(Duration.create(24, 42))).isEqualTo(1);
+    assertThat(Duration.create(24, 45).compareTo(Duration.create(24, 42))).isEqualTo(1);
+    assertThat(Duration.create(24, 42).compareTo(Duration.create(25, 42))).isEqualTo(-1);
+    assertThat(Duration.create(24, 42).compareTo(Duration.create(24, 45))).isEqualTo(-1);
+    assertThat(Duration.create(-24, -45).compareTo(Duration.create(-24, -42))).isEqualTo(-1);
+    assertThat(Duration.create(-24, -42).compareTo(Duration.create(-25, -42))).isEqualTo(1);
+    assertThat(Duration.create(24, 42).compareTo(Duration.create(-24, -42))).isEqualTo(1);
+  }
+
+  @Test
+  public void testDurationEqual() {
+    // Positive tests.
+    assertThat(Duration.create(0, 0)).isEqualTo(Duration.create(0, 0));
+    assertThat(Duration.create(24, 42)).isEqualTo(Duration.create(24, 42));
+    assertThat(Duration.create(-24, -42)).isEqualTo(Duration.create(-24, -42));
+    // Negative tests.
+    assertThat(Duration.create(25, 42)).isNotEqualTo(Duration.create(24, 42));
+    assertThat(Duration.create(24, 43)).isNotEqualTo(Duration.create(24, 42));
+    assertThat(Duration.create(-25, -42)).isNotEqualTo(Duration.create(-24, -42));
+    assertThat(Duration.create(-24, -43)).isNotEqualTo(Duration.create(-24, -42));
+  }
+
+  @Test
+  public void toMillis() {
+    assertThat(Duration.create(10, 0).toMillis()).isEqualTo(10000L);
+    assertThat(Duration.create(10, 1000).toMillis()).isEqualTo(10000L);
+    assertThat(Duration.create(0, (int) 1e6).toMillis()).isEqualTo(1L);
+    assertThat(Duration.create(0, 0).toMillis()).isEqualTo(0L);
+    assertThat(Duration.create(-10, 0).toMillis()).isEqualTo(-10000L);
+    assertThat(Duration.create(-10, -1000).toMillis()).isEqualTo(-10000L);
+    assertThat(Duration.create(0, -(int) 1e6).toMillis()).isEqualTo(-1L);
+  }
+}