/*
 * 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.api.util;

import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.Set;

import junit.framework.TestCase;

/**
 * @author Kristian Rosenvold
 */
public class TestsToRunTest extends TestCase {
    public void testGetTestSets() {
        Set<Class<?>> classes = new LinkedHashSet<>();
        classes.add(T1.class);
        classes.add(T2.class);
        TestsToRun testsToRun = new TestsToRun(classes);
        Iterator<Class<?>> it = testsToRun.iterator();
        assertTrue(it.hasNext());
        assertEquals(it.next(), T1.class);
        assertTrue(it.hasNext());
        assertEquals(it.next(), T2.class);
        assertFalse(it.hasNext());
    }

    public void testContainsAtLeast() {
        Set<Class<?>> classes = new LinkedHashSet<>();
        classes.add(T1.class);
        classes.add(T2.class);
        TestsToRun testsToRun = new TestsToRun(classes);
        assertTrue(testsToRun.containsAtLeast(2));
        assertFalse(testsToRun.containsAtLeast(3));
    }

    public void testContainsExactly() {
        Set<Class<?>> classes = new LinkedHashSet<>();
        classes.add(T1.class);
        classes.add(T2.class);
        TestsToRun testsToRun = new TestsToRun(classes);
        assertFalse(testsToRun.containsExactly(1));
        assertTrue(testsToRun.containsExactly(2));
        assertFalse(testsToRun.containsExactly(3));
    }

    public void testToRunArray() {
        Set<Class<?>> classes = new LinkedHashSet<>();
        classes.add(T1.class);
        classes.add(T2.class);
        TestsToRun testsToRun = new TestsToRun(classes);
        Class<?>[] locatedClasses = testsToRun.getLocatedClasses();
        assertEquals(2, locatedClasses.length);
    }

    public void testGetClassByName() {
        Set<Class<?>> classes = new LinkedHashSet<>();
        classes.add(T1.class);
        classes.add(T2.class);
        TestsToRun testsToRun = new TestsToRun(classes);
        assertEquals(T1.class, testsToRun.getClassByName("org.apache.maven.surefire.api.util.TestsToRunTest$T1"));
        assertEquals(T2.class, testsToRun.getClassByName("org.apache.maven.surefire.api.util.TestsToRunTest$T2"));
        assertNull(testsToRun.getClassByName("org.apache.maven.surefire.util.TestsToRunTest$T3"));
    }

    public void testTwoIterators() {
        Set<Class<?>> classes = new LinkedHashSet<>();
        classes.add(T1.class);
        classes.add(T2.class);
        TestsToRun testsToRun = new TestsToRun(classes);

        Iterator<Class<?>> it1 = testsToRun.iterator();

        assertEquals(it1.next(), T1.class);
        assertTrue(it1.hasNext());

        Iterator<Class<?>> it2 = testsToRun.iterated();

        assertEquals(it1.next(), T2.class);
        assertFalse(it1.hasNext());

        assertEquals(it2.next(), T1.class);
        assertFalse(it1.hasNext());
    }

    static class T1 {}

    static class T2 {}
}
