Added tests for Timestamp

table/src/test/java/tech/ydb/table/integration/ValuesReadTest.java

@@ -1,5 +1,6 @@
 package tech.ydb.table.integration;
 
+import java.time.Instant;
 import java.util.UUID;
 
 import org.junit.Assert;
@@ -101,4 +102,41 @@ public void uuidReadTest() {
         Assert.assertEquals(0x9cfbb7462d9e498bL, v2.getUuidLow());
         Assert.assertEquals(0x6e73b41c4ede4d08L, v2.getUuidHigh());
     }
+
+    private void assertTimestamp(ValueReader vr, boolean optional, Instant expected) {
+        Assert.assertNotNull(vr);
+        if (optional) {
+            Assert.assertSame(Type.Kind.OPTIONAL, vr.getType().getKind());
+            Assert.assertSame(PrimitiveType.Timestamp, vr.getType().unwrapOptional());
+        } else {
+            Assert.assertSame(PrimitiveType.Timestamp, vr.getType());
+        }
+
+        Assert.assertEquals(expected, vr.getTimestamp());
+    }
+
+    @Test
+    public void timestampReadTest() {
+        DataQueryResult result = CTX.supplyResult(
+                s -> s.executeDataQuery("SELECT "
+                        + "DateTime::MakeTimestamp(DateTime::FromMilliseconds(0ul)) as t1,"
+                        + "DateTime::MakeTimestamp(DateTime::FromMicroseconds(1000ul)) as t2,"
+                        + "DateTime::MakeTimestamp(DateTime::FromMicroseconds(4291747199999999ul)) as t3,"
+                        + "Timestamp('1970-01-01T00:00:00.000000Z') as t4,"
+                        + "Timestamp('2105-12-31T23:59:59.999999Z') as t5;",
+                        TxControl.serializableRw()
+                )
+        ).join().getValue();
+
+        Assert.assertEquals(1, result.getResultSetCount());
+
+        ResultSetReader rs = result.getResultSet(0);
+        Assert.assertTrue(rs.next());
+
+        assertTimestamp(rs.getColumn("t1"), true, Instant.EPOCH);
+        assertTimestamp(rs.getColumn("t2"), true, Instant.EPOCH.plusMillis(1));
+        assertTimestamp(rs.getColumn("t3"), true, Instant.parse("2105-12-31T23:59:59.999999Z"));
+        assertTimestamp(rs.getColumn("t4"), false, Instant.ofEpochSecond(0, 0));
+        assertTimestamp(rs.getColumn("t5"), false, Instant.ofEpochSecond(4291747199l, 999999000l));
+    }
 }

table/src/test/java/tech/ydb/table/types/PrimitiveTypeTest.java

@@ -0,0 +1,39 @@
+package tech.ydb.table.types;
+
+import java.time.Instant;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import tech.ydb.proto.ValueProtos.Value;
+import tech.ydb.table.values.PrimitiveValue;
+
+/**
+ *
+ * @author Aleksandr Gorshenin
+ */
+public class PrimitiveTypeTest {
+
+    @Test
+    public void timestampTest() {
+        PrimitiveValue min = PrimitiveValue.newTimestamp(Instant.EPOCH);
+        Value minValue = min.toPb();
+
+        Assert.assertEquals(0, minValue.getUint32Value());
+        Assert.assertEquals(0, minValue.getUint64Value());
+        Assert.assertEquals(0, minValue.getInt32Value());
+        Assert.assertEquals(0, minValue.getInt64Value());
+        Assert.assertEquals(0, minValue.getLow128());
+        Assert.assertEquals(0, minValue.getHigh128());
+
+        PrimitiveValue max = PrimitiveValue.newTimestamp(Instant.parse("2105-12-31T23:59:59.999999Z"));
+        Value maxValue = max.toPb();
+
+        Assert.assertEquals(0, maxValue.getUint32Value());
+        Assert.assertEquals(4291747199999999l, maxValue.getUint64Value());
+        Assert.assertEquals(0, maxValue.getInt32Value());
+        Assert.assertEquals(0, maxValue.getInt64Value());
+        Assert.assertEquals(0, maxValue.getLow128());
+        Assert.assertEquals(0, maxValue.getHigh128());
+    }
+}