/*
 * Copyright (c) 2017 Mockito contributors
 * This program is made available under the terms of the MIT License.
 */
package org.mockitointegration;

import static org.mockitoutil.ClassLoaders.coverageTool;

import java.util.Set;

import net.bytebuddy.ByteBuddy;
import net.bytebuddy.agent.ByteBuddyAgent;
import org.hamcrest.Matcher;
import org.junit.Assume;
import org.junit.Test;
import org.mockito.Mockito;
import org.mockito.internal.configuration.plugins.Plugins;
import org.mockitoutil.ClassLoaders;
import org.objenesis.Objenesis;

public class NoJUnitDependenciesTest {

    @Test
    public void pure_mockito_should_not_depend_JUnit___ByteBuddy() throws Exception {
        Assume.assumeTrue(
                "ByteBuddyMockMaker".equals(Plugins.getMockMaker().getClass().getSimpleName()));

        ClassLoader classLoader_without_JUnit =
                ClassLoaders.excludingClassLoader()
                        .withCodeSourceUrlOf(
                                Mockito.class,
                                Matcher.class,
                                ByteBuddy.class,
                                ByteBuddyAgent.class,
                                Objenesis.class)
                        .withCodeSourceUrlOf(coverageTool())
                        .without("junit", "org.junit", "org.opentest4j")
                        .build();

        Set<String> pureMockitoAPIClasses =
                ClassLoaders.in(classLoader_without_JUnit)
                        .omit("runners", "junit", "JUnit", "opentest4j")
                        .listOwnedClasses();

        // The later class is required to be initialized before any inline mock maker classes can be
        // loaded.
        checkDependency(
                classLoader_without_JUnit,
                "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker");
        pureMockitoAPIClasses.remove(
                "org.mockito.internal.creation.bytebuddy.InlineDelegateByteBuddyMockMaker");

        for (String pureMockitoAPIClass : pureMockitoAPIClasses) {
            checkDependency(classLoader_without_JUnit, pureMockitoAPIClass);
        }
    }

    private void checkDependency(ClassLoader classLoader_without_JUnit, String pureMockitoAPIClass)
            throws ClassNotFoundException {
        try {
            Class.forName(pureMockitoAPIClass, true, classLoader_without_JUnit);
        } catch (Throwable e) {
            e.printStackTrace();
            throw new AssertionError(
                    String.format("'%s' has some dependency to JUnit", pureMockitoAPIClass));
        }
    }
}