/*
 * 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.apache.maven.plugin.surefire;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.MojoFailureException;
import org.apache.maven.plugin.surefire.AbstractSurefireMojoTest.Mojo;
import org.apache.maven.plugin.surefire.log.PluginConsoleLogger;
import org.apache.maven.surefire.api.suite.RunResult;
import org.apache.maven.surefire.api.testset.TestSetFailedException;
import org.apache.maven.surefire.booter.SurefireBooterForkException;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.mockito.ArgumentCaptor;
import org.slf4j.Logger;

import static java.util.Collections.addAll;
import static java.util.Collections.singleton;
import static org.apache.maven.plugin.surefire.SurefireHelper.escapeToPlatformPath;
import static org.apache.maven.plugin.surefire.SurefireHelper.reportExecution;
import static org.apache.maven.surefire.shared.lang3.SystemUtils.IS_OS_WINDOWS;
import static org.assertj.core.api.Assertions.assertThat;
import static org.hamcrest.Matchers.containsString;
import static org.junit.Assume.assumeTrue;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import static org.powermock.api.mockito.PowerMockito.doNothing;
import static org.powermock.api.mockito.PowerMockito.mock;

/**
 * Test of {@link SurefireHelper}.
 */
public class SurefireHelperTest {

    @Rule
    public ExpectedException e = ExpectedException.none();

    @Test
    public void shouldReplaceForkNumberPath() {
        File root = new File(System.getProperty("user.dir", ""));
        File pathWithPlaceholder = new File(root, "${surefire.forkNumber}");
        File changed = SurefireHelper.replaceForkThreadsInPath(pathWithPlaceholder, 5);
        assertThat(changed.getPath()).isEqualTo(new File(root, "5").getPath());
    }

    @Test
    public void shouldReplaceLongForkNumberPath() {
        File root = new File(System.getProperty("user.dir", ""));
        File subDir = new File(root, "reports-${surefire.forkNumber}");
        File pathWithPlaceholder = new File(subDir, "subdir");
        File changed = SurefireHelper.replaceForkThreadsInPath(pathWithPlaceholder, 5);
        assertThat(changed.getPath()).isEqualTo(new File(new File(root, "reports-5"), "subdir").getPath());
    }

    @Test
    public void shouldBeThreeDumpFiles() {
        String[] dumps = SurefireHelper.getDumpFilesToPrint();
        assertThat(dumps).hasSize(4);
        assertThat(dumps).doesNotHaveDuplicates();
        List<String> onlyStrings = new ArrayList<>();
        addAll(onlyStrings, dumps);
        onlyStrings.removeAll(singleton((String) null));
        assertThat(onlyStrings).hasSize(4);
    }

    @Test
    public void shouldCloneDumpFiles() {
        String[] dumps1 = SurefireHelper.getDumpFilesToPrint();
        String[] dumps2 = SurefireHelper.getDumpFilesToPrint();
        assertThat(dumps1).isNotSameAs(dumps2);
    }

    @Test
    public void testConstants() {
        assertThat(SurefireHelper.DUMPSTREAM_FILENAME_FORMATTER)
                .isEqualTo(SurefireHelper.DUMP_FILE_PREFIX + "%d.dumpstream");

        assertThat(String.format(SurefireHelper.DUMPSTREAM_FILENAME_FORMATTER, 5))
                .endsWith("-jvmRun5.dumpstream");
    }

    @Test
    public void shouldEscapeWindowsPath() {
        assumeTrue(IS_OS_WINDOWS);
        String root = "X:\\path\\to\\project\\";
        String pathToJar = "target\\surefire\\surefirebooter4942721306300108667.jar";
        @SuppressWarnings("checkstyle:magicnumber")
        int projectNameLength = 247 - root.length() - pathToJar.length();
        StringBuilder projectDir = new StringBuilder();
        for (int i = 0; i < projectNameLength; i++) {
            projectDir.append('x');
        }
        String path = root + projectDir + "\\" + pathToJar;
        String escaped = escapeToPlatformPath(path);
        assertThat(escaped).isEqualTo("\\\\?\\" + path);

        path = root + "\\" + pathToJar;
        escaped = escapeToPlatformPath(path);
        assertThat(escaped).isEqualTo(root + "\\" + pathToJar);
    }

    @Test
    public void shouldHandleFailWithoutExitCode() throws Exception {
        RunResult summary = new RunResult(0, 0, 0, 0);
        Mojo plugin = new Mojo();
        plugin.setTestFailureIgnore(true);

        Logger logger = mock(Logger.class);
        when(logger.isErrorEnabled()).thenReturn(true);
        doNothing().when(logger).error(anyString());
        TestSetFailedException exc = new TestSetFailedException("failure");
        reportExecution(plugin, summary, new PluginConsoleLogger(logger), exc);
        ArgumentCaptor<String> errorMessage = ArgumentCaptor.forClass(String.class);
        verify(logger).error(errorMessage.capture());
        assertThat(errorMessage.getValue()).contains("failure");
    }

    @Test
    public void shouldHandleFailIfJvmNonZeroExitCode() throws Exception {
        RunResult summary = new RunResult(0, 0, 0, 0);
        Mojo plugin = new Mojo();
        plugin.setTestFailureIgnore(true);

        SurefireBooterForkException exc = new SurefireBooterForkException("Unrecognized option: -Xxxx");
        e.expect(MojoExecutionException.class);
        e.expectMessage(containsString("Unrecognized option: -Xxxx"));
        reportExecution(plugin, summary, new PluginConsoleLogger(mock(Logger.class)), exc);
    }

    @Test
    public void shouldHandleFailIfNoTests() throws Exception {
        RunResult summary = new RunResult(0, 0, 0, 0);
        Mojo plugin = new Mojo();
        plugin.setFailIfNoTests(true);
        e.expect(MojoFailureException.class);
        e.expectMessage("No tests were executed!  (Set -DfailIfNoTests=false to ignore this error.)");
        reportExecution(plugin, summary, null, null);
    }

    @Test
    public void shouldHandleTestFailure() throws Exception {
        RunResult summary = new RunResult(1, 0, 1, 0);
        e.expect(MojoFailureException.class);
        e.expectMessage("There are test failures.\n\nSee null "
                + "for the individual test results.\nSee dump files (if any exist) "
                + "[date].dump, [date]-jvmRun[N].dump and [date].dumpstream.");
        reportExecution(new Mojo(), summary, null, null);
    }

    @Test
    public void failsIfThereAreTooManyFlakes() throws Exception {
        RunResult summary = new RunResult(1, 0, 0, 0, 1);
        Mojo reportParameters = new Mojo();
        reportParameters.setFailOnFlakeCount(1);
        e.expect(MojoFailureException.class);
        e.expectMessage("There is 1 flake and failOnFlakeCount is set to 1.\n\nSee null "
                + "for the individual test results.\nSee dump files (if any exist) "
                + "[date].dump, [date]-jvmRun[N].dump and [date].dumpstream.");
        reportExecution(reportParameters, summary, null, null);
    }

    @Test
    public void reportsFailuresAndFlakes() throws Exception {
        RunResult summary = new RunResult(1, 0, 1, 0, 2);
        Mojo reportParameters = new Mojo();
        reportParameters.setFailOnFlakeCount(1);
        e.expect(MojoFailureException.class);
        e.expectMessage("There are test failures.\nThere are 2 flakes and failOnFlakeCount is set to 1."
                + "\n\nSee null "
                + "for the individual test results.\nSee dump files (if any exist) "
                + "[date].dump, [date]-jvmRun[N].dump and [date].dumpstream.");
        reportExecution(reportParameters, summary, null, null);
    }

    @Test
    public void passesIfFlakesAreWithinThreshold() throws Exception {
        RunResult summary = new RunResult(1, 0, 0, 0, 1);
        reportExecution(new Mojo(), summary, null, null);
    }
}
