maven-slf4j-provider/src/test/java/org/slf4j/impl/MavenLoggerFactoryTest.java

package org.slf4j.impl;

/*
 * 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
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import org.apache.maven.logwrapper.LogLevelRecorder;
import org.junit.jupiter.api.Test;
import org.slf4j.Logger;

import static org.hamcrest.CoreMatchers.instanceOf;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNotSame;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

public class MavenLoggerFactoryTest
{
    @Test
    public void createsSimpleLogger()
    {
        MavenLoggerFactory mavenLoggerFactory = new MavenLoggerFactory();

        Logger logger = mavenLoggerFactory.getLogger( "Test" );

        assertThat( logger, instanceOf( MavenSimpleLogger.class ) );
    }

    @Test
    public void loggerCachingWorks()
    {
        MavenLoggerFactory mavenLoggerFactory = new MavenLoggerFactory();

        Logger logger = mavenLoggerFactory.getLogger( "Test" );
        Logger logger2 = mavenLoggerFactory.getLogger( "Test" );
        Logger differentLogger = mavenLoggerFactory.getLogger( "TestWithDifferentName" );

        assertNotNull( logger );
        assertNotNull( differentLogger );
        assertSame( logger, logger2 );
        assertNotSame( logger, differentLogger );
    }

    @Test
    public void reportsWhenFailOnSeverityThresholdHasBeenHit()
    {
        MavenLoggerFactory mavenLoggerFactory = new MavenLoggerFactory();
        mavenLoggerFactory.setLogLevelRecorder( new LogLevelRecorder( "ERROR" ) );

        assertTrue( mavenLoggerFactory.getLogLevelRecorder().isPresent() );
        LogLevelRecorder logLevelRecorder = mavenLoggerFactory.getLogLevelRecorder().get();

        MavenFailOnSeverityLogger logger = (MavenFailOnSeverityLogger) mavenLoggerFactory.getLogger( "Test" );
        assertFalse( logLevelRecorder.metThreshold() );

        logger.warn( "This should not hit the fail threshold" );
        assertFalse( logLevelRecorder.metThreshold() );

        logger.error( "This should hit the fail threshold" );
        assertTrue( logLevelRecorder.metThreshold() );

        logger.warn( "This should not reset the fail threshold" );
        assertTrue( logLevelRecorder.metThreshold() );
    }

    @Test
    public void failOnSeverityThresholdCanOnlyBeSetOnce()
    {
        MavenLoggerFactory mavenLoggerFactory = new MavenLoggerFactory();
        mavenLoggerFactory.setLogLevelRecorder( new LogLevelRecorder( "WARN" ) );
        assertThrows( IllegalStateException.class,
                      () -> mavenLoggerFactory.setLogLevelRecorder( new LogLevelRecorder( "ERROR" ) ) );
    }
}