/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.test.extension.guard;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.engine.descriptor.JupiterEngineDescriptor.ENGINE_ID;
import static org.junit.platform.engine.discovery.DiscoverySelectors.selectClass;
import static org.junit.platform.testkit.engine.EventConditions.event;
import static org.junit.platform.testkit.engine.EventConditions.finishedWithFailure;
import static org.junit.platform.testkit.engine.TestExecutionResultConditions.instanceOf;
import static org.junit.platform.testkit.engine.TestExecutionResultConditions.message;

import org.junit.jupiter.api.Test;
import org.junit.platform.commons.JUnitException;
import org.junit.platform.testkit.engine.EngineTestKit;
import org.junit.platform.testkit.engine.Events;

class JUnitUsageGuardExtensionTest {
    @Test
    void detectIncorrectAssertUsage() {
        Events testEvents = executeTest(IncorrectAssertUsage.class);

        verifyFailureMessage(testEvents, "Detected Junit 4 classes: [org.junit.Assert]");
    }

    @Test
    void detectIncorrectIgnoreNewTest() {
        Events testEvents = executeTest(IgnoreNewTestWithOldAnnotation.class);

        verifyFailureMessage(testEvents, "Detected Junit 4 classes: [org.junit.Ignore]");
    }

    @Test
    void detectMixtureOfDifferentTests() {
        Events testEvents = executeTest(MixOfDifferentJUnits.class);

        verifyFailureMessage(testEvents, "Detected Junit 4 classes: [org.junit.Test]");
    }

    @Test
    void deleteOldRuleAndNewTest() {
        Events testEvents = executeTest(MixRuleAndNewJUnit.class);

        verifyFailureMessage(
                testEvents, "Detected Junit 4 classes: [org.junit.Rule, org.junit.rules.ExpectedException]");
    }

    @Test
    void validTestUsage() {
        Events testEvents = executeTest(ValidUsage.class);
        assertEquals(0, testEvents.failed().count());
    }

    private static void verifyFailureMessage(Events testEvents, String expectedMessage) {
        testEvents
                .assertThatEvents()
                .haveExactly(
                        1,
                        event(finishedWithFailure(
                                instanceOf(JUnitException.class),
                                message(message -> message.contains(expectedMessage)))));
    }

    private static Events executeTest(Class<?> clazz) {
        return EngineTestKit.engine(ENGINE_ID)
                .selectors(selectClass(clazz))
                .enableImplicitConfigurationParameters(true)
                .execute()
                .allEvents();
    }
}
