gradle-master/subprojects/internal-integ-testing/src/main/groovy/org/gradle/integtests/fixtures/timeout/IntegrationTestTimeoutExtension.java
/*
 * Copyright 2018 the original author or authors.
 *
 * Licensed 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.gradle.integtests.fixtures.timeout;

import groovy.lang.Closure;
import org.spockframework.runtime.extension.IAnnotationDrivenExtension;
import org.spockframework.runtime.model.FeatureInfo;
import org.spockframework.runtime.model.MethodInfo;
import org.spockframework.runtime.model.SpecInfo;

import java.lang.reflect.Constructor;

public class IntegrationTestTimeoutExtension implements IAnnotationDrivenExtension<IntegrationTestTimeout> {
    @Override
    public void visitSpecAnnotation(IntegrationTestTimeout timeout, SpecInfo spec) {
        for (FeatureInfo feature : spec.getFeatures()) {
            if (!feature.getFeatureMethod().getReflection().isAnnotationPresent(IntegrationTestTimeout.class)) {
                visitFeatureAnnotation(timeout, feature);
            }
        }
    }

    @Override
    public void visitFeatureAnnotation(IntegrationTestTimeout timeout, FeatureInfo feature) {
        runIfEnabled(timeout, () ->
            feature.getFeatureMethod().addInterceptor(new IntegrationTestTimeoutInterceptor(timeout))
        );
    }

    @Override
    public void visitFixtureAnnotation(IntegrationTestTimeout timeout, MethodInfo fixtureMethod) {
        runIfEnabled(timeout, () ->
            fixtureMethod.addInterceptor(new IntegrationTestTimeoutInterceptor(timeout))
        );
    }

    @SuppressWarnings("unchecked")
    private void runIfEnabled(IntegrationTestTimeout timeout, Runnable runnable) {
        try {
            Constructor<?> constructor = timeout.onlyIf().getConstructors()[0];
            int paramCount = constructor.getParameterCount();
            Object[] param = new Object[paramCount];
            for (int i = 0; i < paramCount; i++) {
                param[i] = this;
            }
            if (((Closure<Boolean>) constructor.newInstance(param)).call()) {
                runnable.run();
            }
        } catch (Throwable t) {
            throw new RuntimeException(t);
        }
    }
}
