RegionTest.java

/*
 * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * 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://aws.amazon.com/apache2.0
 *
 * This file 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 com.amazonaws.services.s3;

import static org.junit.Assert.assertEquals;

import com.amazonaws.services.s3.model.Region;

import org.junit.Test;

/**
 * The Region enum originally had a null pointer exception since the US region's
 * value is null. This simple test just makes sure that never comes back.
 */
public class RegionTest {

    @Test
    public void testRegionEnumeration() {
        assertEquals(Region.EU_Ireland, Region.fromValue(Region.EU_Ireland.toString()));
        assertEquals(Region.US_Standard, Region.fromValue(Region.US_Standard.toString()));
    }

    /**
     * Tests if US Standard Enum is returned in cases where empty string or "US"
     * is passed to fromValue method.
     */
    @Test
    public void testFromValueForUSStandard() {
        assertEquals(Region.US_Standard, Region.fromValue(null));
        assertEquals(Region.US_Standard, Region.fromValue("US"));
    }

    /**
     * Tests if correct enums are returned when the location constraints are
     * passed to fromValue method.
     */
    @Test
    public void testFromValueForOthers() {
        assertEquals(Region.EU_Ireland, Region.fromValue("eu-west-1"));
        assertEquals(Region.EU_Ireland, Region.fromValue("EU"));
        assertEquals(Region.US_GovCloud, Region.fromValue("s3-us-gov-west-1"));
    }

}