maven-core/src/test/java/org/apache/maven/execution/scope/internal/MojoExecutionScopeTest.java

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 * distributed with this work for additional information
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 * 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
 *
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package org.apache.maven.execution.scope.internal;

import java.util.concurrent.atomic.AtomicInteger;

import com.google.inject.Key;
import org.apache.maven.execution.MojoExecutionEvent;
import org.apache.maven.execution.scope.WeakMojoExecutionListener;
import org.apache.maven.plugin.MojoExecutionException;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;

class MojoExecutionScopeTest {
    @Test
    void testNestedEnter() throws Exception {
        MojoExecutionScope scope = new MojoExecutionScope();

        scope.enter();

        Object o1 = new Object();
        scope.seed(Object.class, o1);
        assertSame(o1, scope.scope(Key.get(Object.class), null).get());

        scope.enter();
        Object o2 = new Object();
        scope.seed(Object.class, o2);
        assertSame(o2, scope.scope(Key.get(Object.class), null).get());

        scope.exit();
        assertSame(o1, scope.scope(Key.get(Object.class), null).get());

        scope.exit();

        assertThrows(IllegalStateException.class, () -> scope.exit());
    }

    @Test
    void testMultiKeyInstance() throws Exception {
        MojoExecutionScope scope = new MojoExecutionScope();
        scope.enter();

        final AtomicInteger beforeExecution = new AtomicInteger();
        final AtomicInteger afterExecutionSuccess = new AtomicInteger();
        final AtomicInteger afterExecutionFailure = new AtomicInteger();
        final WeakMojoExecutionListener instance = new WeakMojoExecutionListener() {
            @Override
            public void beforeMojoExecution(MojoExecutionEvent event) throws MojoExecutionException {
                beforeExecution.incrementAndGet();
            }

            @Override
            public void afterMojoExecutionSuccess(MojoExecutionEvent event) throws MojoExecutionException {
                afterExecutionSuccess.incrementAndGet();
            }

            @Override
            public void afterExecutionFailure(MojoExecutionEvent event) {
                afterExecutionFailure.incrementAndGet();
            }
        };
        assertSame(instance, scope.scope(Key.get(Object.class), () -> instance).get());
        assertSame(
                instance,
                scope.scope(Key.get(WeakMojoExecutionListener.class), () -> instance)
                        .get());

        final MojoExecutionEvent event = new MojoExecutionEvent(null, null, null, null);
        scope.beforeMojoExecution(event);
        scope.afterMojoExecutionSuccess(event);
        scope.afterExecutionFailure(event);

        assertEquals(1, beforeExecution.get());
        assertEquals(1, afterExecutionSuccess.get());
        assertEquals(1, afterExecutionFailure.get());

        scope.exit();
    }
}