Merge pull request #54 from tezc/erolugur/test/timestamp_test

Add test for ms granularity on DB timestamp

jresql/src/test/java/resql/TimestampTest.java

@@ -0,0 +1,80 @@
+/*
+ * BSD-3-Clause
+ *
+ * Copyright 2021 Ozan Tezcan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package resql;
+
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+
+public class TimestampTest {
+
+    Resql client;
+
+    @BeforeEach
+    public void setup() {
+        client = ResqlClient.create(new Config());
+        client.put("DROP TABLE IF EXISTS ts_ms_table;");
+        client.put("CREATE TABLE ts_ms_table (id INTEGER PRIMARY KEY AUTOINCREMENT, ts_ms TIMESTAMP DEFAULT (STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW')));;");
+        client.execute(false);
+    }
+
+    @AfterEach
+    public void tearDown() {
+        if (client != null) {
+            client.clear();
+            client.put("DROP TABLE IF EXISTS ts_ms_table;");
+            client.execute(false);
+            client.shutdown();
+        }
+    }
+
+    @Test
+    public void testTimestampIncrementFor10ms() throws InterruptedException {
+        ResultSet rs;
+        for (int i = 0; i < 10; i++) {
+            client.put("INSERT INTO ts_ms_table DEFAULT VALUES;");
+            rs = client.execute(false);
+            assert (rs.linesChanged() == 1);
+            assert (rs.lastRowId() == i + 1);
+            Thread.sleep(10);
+        }
+
+        client.put("SELECT DISTINCT(ts_ms) FROM ts_ms_table;");
+        rs = client.execute(true);
+        assert (rs.rowCount() == 10);
+    }
+}