/*
 * 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.surefire.its.jiras;

import java.io.FileNotFoundException;

import org.apache.maven.shared.utils.xml.Xpp3Dom;
import org.apache.maven.shared.utils.xml.Xpp3DomBuilder;
import org.apache.maven.surefire.its.fixture.OutputValidator;
import org.apache.maven.surefire.its.fixture.SurefireJUnit4IntegrationTestCase;
import org.junit.Assert;
import org.junit.Test;

/**
 *
 */
public class Surefire943ReportContentIT extends SurefireJUnit4IntegrationTestCase {

    @Test
    @SuppressWarnings("checkstyle:methodname")
    public void test_noParallel() throws Exception {
        doTest("none");
    }

    @Test
    @SuppressWarnings("checkstyle:methodname")
    public void test_parallelBoth() throws Exception {
        doTest("both");
    }

    private void doTest(String parallelMode) throws Exception {
        OutputValidator validator = unpack("surefire-943-report-content")
                .maven()
                .sysProp("parallel", parallelMode)
                .sysProp("threadCount", 4)
                .withFailure()
                .executeTest();

        validator.assertTestSuiteResults(10, 1, 3, 3);

        validate(validator, "org.sample.module.My1Test", 1);
        validate(validator, "org.sample.module.My2Test", 1);
        validate(validator, "org.sample.module.My3Test", 0);
        validateSkipped(validator, "org.sample.module.My4Test");
        validateFailInBeforeClass(validator, "org.sample.module.My5Test");
    }

    private void validateFailInBeforeClass(OutputValidator validator, String className) throws FileNotFoundException {
        Xpp3Dom[] children = readTests(validator, className);

        Assert.assertEquals(1, children.length);

        Xpp3Dom child = children[0];

        Assert.assertEquals(className, child.getAttribute("classname"));
        Assert.assertEquals("", child.getAttribute("name"));

        Assert.assertEquals(
                "Expected error tag for failed BeforeClass method for " + className,
                1,
                child.getChildren("error").length);

        Assert.assertTrue(
                "time for test failure in BeforeClass is expected to be positive",
                Double.compare(Double.parseDouble(child.getAttribute("time")), 0.0d) >= 0);

        Assert.assertTrue(
                "time for test failure in BeforeClass is expected to be resonably low",
                Double.compare(Double.parseDouble(child.getAttribute("time")), 2.0d) <= 0);
    }

    private void validateSkipped(OutputValidator validator, String className) throws FileNotFoundException {
        Xpp3Dom[] children = readTests(validator, className);

        Assert.assertEquals(1, children.length);

        Xpp3Dom child = children[0];

        Assert.assertEquals(className, child.getAttribute("classname"));
        Assert.assertEquals("", child.getAttribute("name"));

        Assert.assertEquals(
                "Expected skipped tag for ignored method for " + className, 1, child.getChildren("skipped").length);

        Assert.assertEquals(
                "time for ignored test is expected to be zero",
                0,
                Double.compare(Double.parseDouble(child.getAttribute("time")), 0.0d));
    }

    private void validate(OutputValidator validator, String className, int ignored) throws FileNotFoundException {
        Xpp3Dom[] children = readTests(validator, className);

        Assert.assertEquals(2 + ignored, children.length);

        for (Xpp3Dom child : children) {
            Assert.assertEquals(className, child.getAttribute("classname"));

            if ("alwaysSuccessful".equals(child.getAttribute("name"))) {
                Assert.assertEquals(
                        "Expected no failures for method alwaysSuccessful for " + className, 0, child.getChildCount());

                Assert.assertTrue(
                        "time for successful test is expected to be positive",
                        Double.compare(Double.parseDouble(child.getAttribute("time")), 0.0d) > 0);
            } else if (child.getAttribute("name").contains("Ignored")) {
                Assert.assertEquals(
                        "Expected skipped-tag for ignored method for " + className,
                        1,
                        child.getChildren("skipped").length);

                Assert.assertEquals(
                        "time for ignored test is expected to be zero",
                        0,
                        Double.compare(Double.parseDouble(child.getAttribute("time")), 0.0d));

            } else {
                Assert.assertEquals(
                        "Expected methods \"alwaysSuccessful\", \"*Ignored\" and \"fails\" in " + className,
                        "fails",
                        child.getAttribute("name"));
                Assert.assertEquals(
                        "Expected failure description for method \"fails\" in " + className,
                        1,
                        child.getChildren("failure").length);
                Assert.assertTrue(
                        "time for failed test is expected to be positive",
                        Double.compare(Double.parseDouble(child.getAttribute("time")), 0.0d) > 0);
            }
        }
    }

    private Xpp3Dom[] readTests(OutputValidator validator, String className) throws FileNotFoundException {
        Xpp3Dom testResult = Xpp3DomBuilder.build(
                validator
                        .getSurefireReportsXmlFile("TEST-" + className + ".xml")
                        .getFileInputStream(),
                "UTF-8");
        return testResult.getChildren("testcase");
    }
}
