generic/src/test/java/org/netbeans/html/presenters/spi/test/GenericTest.java

/**
 * 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.netbeans.html.presenters.spi.test;

import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.function.Predicate;
import net.java.html.boot.BrowserBuilder;
import org.netbeans.html.boot.spi.Fn;
import org.netbeans.html.json.tck.KOTest;
import org.testng.annotations.Factory;

public class GenericTest {
    private static Class<?> browserClass;

    public GenericTest() {
    }

    static {
        DumpStack.initialize();
    }

    @Factory public static Object[] compatibilityTests() throws Exception {
        return createTests(Testing.create());
    }

    static Object[] createTests(Testing t) throws Exception {
        return createTests(t, null);
    }

    static Object[] createTests(Testing t, Predicate<Method> accept) throws Exception {
        Fn.Presenter presenter = t.presenter;

        final BrowserBuilder bb = BrowserBuilder.newBrowser(presenter).loadClass(GenericTest.class).
            loadPage("empty.html").
            invoke("initialized");

        Executors.newSingleThreadExecutor().submit(new Runnable() {
            @Override
            public void run() {
                bb.showAndWait();
            }
        });

        List<Object> res = new ArrayList<>();
        Class<? extends Annotation> test =
            loadClass().getClassLoader().loadClass(KOTest.class.getName()).
            asSubclass(Annotation.class);

        if (accept == null) {
            accept = (m) -> m.getAnnotation(test) != null;
        }

        Class[] arr = (Class[]) loadClass().getDeclaredMethod("tests").invoke(null);
        for (Class c : arr) {
            addTestMethods(c, accept, res, t);
        }
        return res.toArray();
    }

    private static void addTestMethods(Class c, Predicate<Method> accept, List<Object> res, Testing t) throws SecurityException {
        for (Method m : c.getMethods()) {
            if (accept.test(m)) {
                res.add(new Case(t, m));
            }
        }
    }

    static synchronized Class<?> loadClass() throws InterruptedException {
        while (browserClass == null) {
            GenericTest.class.wait();
        }
        return browserClass;
    }

    public static synchronized void ready(Class<?> browserCls) throws Exception {
        browserClass = browserCls;
        GenericTest.class.notifyAll();
    }

    public static void initialized() throws Exception {
        Class<?> classpathClass = ClassLoader.getSystemClassLoader().loadClass(GenericTest.class.getName());
        Method m = classpathClass.getMethod("ready", Class.class);
        m.invoke(null, GenericTCK.class);
    }
}