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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.zookeeper;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;
import java.io.File;
import java.time.LocalDateTime;
import org.apache.zookeeper.util.ServiceUtils;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.TestInfo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Base class for a non-parameterized ZK test.
*
* Basic utilities shared by all tests. Also logging of various events during
* the test execution (start/stop/success/failure/etc...)
*/
public class ZKTestCase {
protected static final File testBaseDir = new File(System.getProperty("build.test.dir", "build"));
private static final Logger LOG = LoggerFactory.getLogger(ZKTestCase.class);
static {
// Disable System.exit in tests.
ServiceUtils.setSystemExitProcedure(ServiceUtils.LOG_ONLY);
}
private String testName;
protected String getTestName() {
return testName;
}
@BeforeAll
public static void before() {
if (!testBaseDir.exists()) {
assertTrue(testBaseDir.mkdirs(),
"Cannot properly create test base directory " + testBaseDir.getAbsolutePath());
} else if (!testBaseDir.isDirectory()) {
assertTrue(testBaseDir.delete(),
"Cannot properly delete file with duplicate name of test base directory " + testBaseDir.getAbsolutePath());
assertTrue(testBaseDir.mkdirs(),
"Cannot properly create test base directory " + testBaseDir.getAbsolutePath());
}
}
@BeforeEach
public void starting(TestInfo testInfo) {
// By default, disable starting a JettyAdminServer in tests to avoid
// accidentally attempting to start multiple admin servers on the
// same port.
System.setProperty("zookeeper.admin.enableServer", "false");
// ZOOKEEPER-2693 disables all 4lw by default.
// Here we enable the 4lw which ZooKeeper tests depends.
System.setProperty("zookeeper.4lw.commands.whitelist", "*");
LOG.info("STARTING {}", testInfo.getTestMethod());
}
@AfterEach
public void finished(TestInfo testInfo) {
LOG.info("FINISHED {}", testInfo.getTestMethod());
}
public interface WaitForCondition {
/**
* @return true when success
*/
boolean evaluate();
}
/**
* Wait for condition to be true; otherwise fail the test if it exceed
* timeout
* @param msg error message to print when fail
* @param condition condition to evaluate
* @param timeout timeout in seconds
* @throws InterruptedException
*/
public void waitFor(String msg, WaitForCondition condition, int timeout) throws InterruptedException {
final LocalDateTime deadline = LocalDateTime.now().plusSeconds(timeout);
while (LocalDateTime.now().isBefore(deadline)) {
if (condition.evaluate()) {
return;
}
Thread.sleep(100);
}
fail(msg);
}
}
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