/*
 * Copyright 2013 the original author or authors.
 *
 * Licensed 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.springframework.data.hadoop.test.tests;

import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertThat;

import java.util.Collections;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.Set;

import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;

/**
 * Tests for {@link TestGroup}.
 *
 * @author Phillip Webb
 * @author Janne Valkealahti
 */
public class TestGroupTests {

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

    @Test
    public void parseNull() throws Exception {
        assertThat(TestGroup.parse(null), equalTo(Collections.<TestGroup> emptySet()));
    }

    @Test
    public void parseEmptyString() throws Exception {
        assertThat(TestGroup.parse(""), equalTo(Collections.<TestGroup> emptySet()));
    }

    @Test
    public void parseWithSpaces() throws Exception {
        assertThat(TestGroup.parse("PERFORMANCE,  PERFORMANCE"),
                equalTo((Set<TestGroup>) EnumSet.of(TestGroup.PERFORMANCE)));
    }

    @Test
    public void parseInMixedCase() throws Exception {
        assertThat(TestGroup.parse("performance,  PERFormaNCE"),
                equalTo((Set<TestGroup>) EnumSet.of(TestGroup.PERFORMANCE)));
    }

    @Test
    public void parseMissing() throws Exception {
        thrown.expect(IllegalArgumentException.class);
        thrown.expectMessage("Unable to find test group 'missing' when parsing " +
                "testGroups value: 'performance, missing'. Available groups include: " +
                "[LONG_RUNNING,PERFORMANCE,KERBEROS,CI]");
        TestGroup.parse("performance, missing");
    }

    @Test
    public void parseAll() throws Exception {
        assertThat(TestGroup.parse("all"), equalTo((Set<TestGroup>)EnumSet.allOf(TestGroup.class)));
    }

    @Test
    public void parseAllExcept() throws Exception {
        Set<TestGroup> expected = new HashSet<TestGroup>(EnumSet.allOf(TestGroup.class));
        expected.remove(TestGroup.CI);
        expected.remove(TestGroup.PERFORMANCE);
        assertThat(TestGroup.parse("all-ci,performance"), equalTo(expected));
    }

}