added test case

Praful Makani · Praful Makani · commit 4cb69a05637a · 2019-03-07T19:59:50.000+05:30
diff --git a/google-cloud-clients/google-cloud-core/src/test/java/com/google/cloud/TimestampTest.java b/google-cloud-clients/google-cloud-core/src/test/java/com/google/cloud/TimestampTest.java
@@ -178,6 +178,15 @@ public void testToString() {
 
   @Test
   public void parseTimestamp() {
+    assertThat(Timestamp.parseTimestamp("0001-01-01T00:00:00Z")).isEqualTo(Timestamp.MIN_VALUE);
+    assertThat(Timestamp.parseTimestamp("9999-12-31T23:59:59.999999999Z"))
+        .isEqualTo(Timestamp.MAX_VALUE);
+    assertThat(Timestamp.parseTimestamp(TEST_TIME_ISO))
+        .isEqualTo(Timestamp.ofTimeSecondsAndNanos(TEST_TIME_SECONDS, 0));
+  }
+
+  @Test
+  public void parseTimestampWithoutTimeZoneOffset() {
     assertThat(Timestamp.parseTimestamp("0001-01-01T00:00:00")).isEqualTo(Timestamp.MIN_VALUE);
     assertThat(Timestamp.parseTimestamp("9999-12-31T23:59:59.999999999"))
         .isEqualTo(Timestamp.MAX_VALUE);
@@ -217,6 +226,6 @@ public void comparable() {
 
   @Test
   public void serialization() throws Exception {
-    reserializeAndAssert(Timestamp.parseTimestamp("9999-12-31T23:59:59.999999999"));
+    reserializeAndAssert(Timestamp.parseTimestamp("9999-12-31T23:59:59.999999999Z"));
   }
 }
