EnvironmentPropertySourceTest.java

/*
 * 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.tamaya.core.propertysource;

import org.apache.tamaya.spi.PropertyValue;
import org.junit.Test;

import java.util.Map;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

/**
 * Tests for {@link org.apache.tamaya.core.propertysource.EnvironmentPropertySource}.
 */
public class EnvironmentPropertySourceTest {

    private final EnvironmentPropertySource envPropertySource = new EnvironmentPropertySource();

    @Test
    public void testGetOrdinal() throws Exception {
        assertEquals(EnvironmentPropertySource.DEFAULT_ORDINAL, envPropertySource.getOrdinal());
    }

    @Test
    public void testGetName() throws Exception {
        assertEquals("environment-properties", envPropertySource.getName());
    }

    @Test
    public void testGet() throws Exception {
        for (Map.Entry<String, String> envEntry : System.getenv().entrySet()) {
            assertEquals(envPropertySource.get(envEntry.getKey()).getValue(), envEntry.getValue());
        }
    }

    @Test
    public void testGetProperties() throws Exception {
        Map<String, PropertyValue> props = envPropertySource.getProperties();
        for(Map.Entry<String,PropertyValue> en: props.entrySet()){
            if(!en.getKey().startsWith("_")){
                assertEquals(System.getenv(en.getKey()), en.getValue().getValue());
            }
        }
    }

    @Test
    public void testIsScannable() throws Exception {
        assertTrue(envPropertySource.isScannable());
    }
}