⬅ Forum: Building APIs & Wire Protocol

This testcase is based on https://github.com/VoltDB/voltdb/pull/1747.To test the max 'in' of query.

public class TestMaxInSuite extends RegressionSuite {

	static final Class<?>[] PROCEDURES = {};

	public TestMaxInSuite(String name) {
		super(name);
	}

	public void testMaxIn() throws Exception {
		final Client client = this.getClient();

		ClientResponse resp = null;
		for (int i = 0; i < 10; i++) {
			resp = client.callProcedure("P1.insert", i, i);
			assertEquals(ClientResponse.SUCCESS, resp.getStatus());
		}

		StringBuilder stringBuilder = new StringBuilder(
				"select * from p1 where a2 in(");
		for (int i = 0; i < 6000; i++) {
			stringBuilder.append(i);
			if (i != 5999) {
				stringBuilder.append(",");
			}
		}
		stringBuilder.append(");");
		resp = client.callProcedure("@AdHoc", stringBuilder.toString());
		assertEquals(ClientResponse.SUCCESS, resp.getStatus());

		assertEquals(1, resp.getResults().length);
		VoltTable results = resp.getResults()[0];
		int rowCount = results.getRowCount();
		assertEquals(10, rowCount);
		assertEquals(2, results.getColumnCount());
		for (int i = 0; i < rowCount; i++) {
			System.out.println(results.fetchRow(i).getLong(0));
			assertEquals(i, results.fetchRow(i).getLong(0));//70line
		}
	}

	static public junit.framework.Test suite() {
		VoltServerConfig config = null;
		final MultiConfigSuiteBuilder builder = new MultiConfigSuiteBuilder(
				TestMaxInSuite.class);

		final VoltProjectBuilder project = new VoltProjectBuilder();

		project.addStmtProcedure("CountP1", "select count(*) from p1;");
		// project.addStmtProcedure("CountR1", "select count(*) from r1;");//if
		// r1 doesn't exist , exception

		try {
			// a table that should generate procedures
			// use column names such that lexical order != column order.
			project.addLiteralSchema("CREATE TABLE p1(b1 INTEGER NOT NULL, a2 INTEGER NOT NULL, PRIMARY KEY (b1));");
			project.addPartitionInfo("p1", "b1");

		} catch (IOException error) {
			fail(error.getMessage());
		}

		// JNI
		config = new LocalCluster("testMax-onesite.jar", 1, 1, 0,
				BackendTarget.NATIVE_EE_JNI);
		boolean t1 = config.compile(project);
		assertTrue(t1);
		builder.addServerConfig(config);

		// CLUSTER
		config = new LocalCluster("testMax-cluster.jar", 2, 3, 1,
				BackendTarget.NATIVE_EE_JNI);
		boolean t2 = config.compile(project);
		assertTrue(t2);
		builder.addServerConfig(config);

		return builder;
	}
}

stacktrace:
junit.framework.AssertionFailedError: expected:<0> but was:<3>
at junit.framework.Assert.fail(Assert.java:50)
at junit.framework.Assert.failNotEquals(Assert.java:287)
at junit.framework.Assert.assertEquals(Assert.java:67)
at junit.framework.Assert.assertEquals(Assert.java:134)
at junit.framework.Assert.assertEquals(Assert.java:140)
at org.voltdb.regressionsuites.TestMaxInSuite.testMaxIn(TestMaxInSuite.java:70)




The testMaxIn method is called twice,As LocalCluster are executed twice.
First time it passed ,but second time it break on assertEquals(i, results.fetchRow(i).getLong(0));.
I am wondering whether the data is clear after one LocalCluster is executed?
If the data is cleared after one LocalCluster is executed ,when and where does it do the cleaning?