/*
* 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.geode.test.junit.rules.examples;
import static org.assertj.core.api.Assertions.*;
import org.apache.geode.test.junit.categories.UnitTest;
import org.apache.geode.test.junit.rules.TestRunner;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runner.Result;
import org.junit.runners.model.Statement;
/**
* Example usage of a rule as both a method {@literal @}Rule and a {@literal @}ClassRule.
*/
@Category(UnitTest.class)
public class RuleAndClassRuleTest {
@Test
public void usingRuleAsRuleAndClassRuleShouldInvokeBeforeClass() {
Result result = TestRunner.runTest(UsingRuleAsRuleAndClassRule.class);
assertThat(result.wasSuccessful()).isTrue();
assertThat(UsingRuleAsRuleAndClassRule.staticRule.beforeClassInvoked).isEqualTo(true);
}
@Test
public void usingRuleAsRuleAndClassRuleShouldInvokeAfterClass() {
Result result = TestRunner.runTest(UsingRuleAsRuleAndClassRule.class);
assertThat(result.wasSuccessful()).isTrue();
assertThat(UsingRuleAsRuleAndClassRule.staticRule.afterClassInvoked).isEqualTo(true);
}
@Test
public void usingRuleAsRuleAndClassRuleShouldInvokeBefore() {
Result result = TestRunner.runTest(UsingRuleAsRuleAndClassRule.class);
assertThat(result.wasSuccessful()).isTrue();
assertThat(UsingRuleAsRuleAndClassRule.staticRule.beforeInvoked).isEqualTo(true);
}
@Test
public void usingRuleAsRuleAndClassRuleShouldInvokeAfter() {
Result result = TestRunner.runTest(UsingRuleAsRuleAndClassRule.class);
assertThat(result.wasSuccessful()).isTrue();
assertThat(UsingRuleAsRuleAndClassRule.staticRule.afterInvoked).isEqualTo(true);
}
/**
* Implementation of TestRule that records the callbacks invoked on it. Used by
* {@link UsingRuleAsRuleAndClassRule}.
*/
public static class SpyRule implements TestRule {
boolean beforeClassInvoked = false;
boolean afterClassInvoked = false;
boolean beforeInvoked = false;
boolean afterInvoked = false;
@Override
public Statement apply(final Statement base, final Description description) {
if (description.isTest()) {
return statement(base);
} else if (description.isSuite()) {
return statementClass(base);
}
return base;
}
private Statement statement(final Statement base) {
return new Statement() {
@Override
public void evaluate() throws Throwable {
before();
try {
base.evaluate();
} finally {
after();
}
}
};
}
private Statement statementClass(final Statement base) {
return new Statement() {
@Override
public void evaluate() throws Throwable {
beforeClass();
try {
base.evaluate();
} finally {
afterClass();
}
}
};
}
private void beforeClass() {
this.beforeClassInvoked = true;
}
private void afterClass() {
this.afterClassInvoked = true;
}
private void before() {
this.beforeInvoked = true;
}
private void after() {
this.afterInvoked = true;
}
}
/**
* Used by the tests in {@link RuleAndClassRuleTest}.
*/
public static class UsingRuleAsRuleAndClassRule {
@ClassRule
public static SpyRule staticRule = new SpyRule();
@Rule
public SpyRule rule = staticRule;
@Test
public void doTest() throws Exception {}
}
}