fix(bigquery-jdbc): fix Timestamp assertions (#14290)

Author: Neenu1995

java-bigquery-jdbc/src/test/java/com/google/cloud/bigquery/jdbc/it/ITNightlyBigQueryTest.java

@@ -1133,8 +1133,9 @@ public void testValidAllDataTypesSerializationFromSelectQueryArrowDataset() thro
     assertEquals("{\"name\":\"Eric\",\"age\":10}", expectedStruct.toString());
     assertArrayEquals(
         new String[] {"one", "two", "three"}, (String[]) resultSet.getArray(9).getArray());
-    assertEquals(Timestamp.valueOf("2020-04-27 18:07:25.356"), resultSet.getObject(10));
-    assertEquals(Timestamp.valueOf("2020-04-27 18:07:25.356"), resultSet.getTimestamp(10));
+    Timestamp expectedTimestamp = Timestamp.from(Instant.parse("2020-04-27T18:07:25.356Z"));
+    assertEquals(expectedTimestamp, resultSet.getObject(10));
+    assertEquals(expectedTimestamp, resultSet.getTimestamp(10));
     assertEquals(Date.valueOf("2019-1-12"), resultSet.getObject(11));
     assertEquals(Date.valueOf("2019-1-12"), resultSet.getDate(11));
     assertEquals(Time.valueOf("14:00:00"), resultSet.getObject(12));

java-bigquery-jdbc/src/test/java/com/google/cloud/bigquery/jdbc/it/ITPSCBigQueryTest.java

@@ -40,6 +40,7 @@
 import java.sql.Struct;
 import java.sql.Time;
 import java.sql.Timestamp;
+import java.time.Instant;
 import java.util.Properties;
 import org.junit.jupiter.api.Test;
 
@@ -198,7 +199,8 @@ public void testValidAllDataTypesSerializationFromSelectQueryInPSC() throws SQLE
     assertArrayEquals(
         new String[] {"one", "two", "three"}, (String[]) resultSet.getArray(9).getArray());
 
-    assertEquals(Timestamp.valueOf("2020-04-27 18:07:25.356456"), resultSet.getObject(10));
+    Timestamp expectedTimestamp = Timestamp.from(Instant.parse("2020-04-27T18:07:25.356456Z"));
+    assertEquals(expectedTimestamp, resultSet.getObject(10));
     assertEquals(Date.valueOf("2019-1-12"), resultSet.getObject(11));
     assertEquals(Time.valueOf("14:00:00"), resultSet.getObject(12));
     assertEquals(Timestamp.valueOf("2019-02-17 11:24:00"), resultSet.getObject(13));
@@ -245,8 +247,9 @@ public void testValidAllDataTypesSerializationFromSelectQueryArrowDatasetInPSC()
     assertEquals("{\"v\":{\"f\":[{\"v\":\"Eric\"},{\"v\":\"10\"}]}}", expectedStruct.toString());
     assertArrayEquals(
         new String[] {"one", "two", "three"}, (String[]) resultSet.getArray(9).getArray());
-    assertEquals(Timestamp.valueOf("2020-04-27 18:07:25.356"), resultSet.getObject(10));
-    assertEquals(Timestamp.valueOf("2020-04-27 18:07:25.356"), resultSet.getTimestamp(10));
+    Timestamp expectedTimestamp = Timestamp.from(Instant.parse("2020-04-27T18:07:25.356Z"));
+    assertEquals(expectedTimestamp, resultSet.getObject(10));
+    assertEquals(expectedTimestamp, resultSet.getTimestamp(10));
     assertEquals(Date.valueOf("2019-1-12"), resultSet.getObject(11));
     assertEquals(Date.valueOf("2019-1-12"), resultSet.getDate(11));
     assertEquals(Time.valueOf("14:00:00"), resultSet.getObject(12));