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/*
* Copyright © 2016-2018 European Support Limited
*
* 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.openecomp.core.nosqldb.util;
import static org.hamcrest.core.StringContains.containsString;
import static org.junit.Assert.assertNotNull;
import java.io.Closeable;
import java.io.IOException;
import java.lang.reflect.Field;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
/**
* @author EVITALIY
* @since 22 Oct 17
*/
public class ConfigurationManagerTest {
@Rule
public ExpectedException expectedException = ExpectedException.none();
private static final String NON_EXISTENT = "unexistentfile";
@Before
public void resetInstance() throws NoSuchFieldException, IllegalAccessException {
Field field = ConfigurationManager.class.getDeclaredField("instance");
field.setAccessible(true);
field.set(null, null);
}
@Test
public void testGetInstanceSystemProperty() throws Throwable {
expectedException.expect(IOException.class);
expectedException.expectMessage(containsString(NON_EXISTENT));
try (ConfigurationSystemPropertyUpdater updater = new ConfigurationSystemPropertyUpdater(NON_EXISTENT)) {
ConfigurationManager.getInstance();
} catch (RuntimeException e) {
Throwable cause = e.getCause();
throw cause == null ? e : cause;
}
}
@Test()
public void testGetInstanceDefault() {
try (ConfigurationSystemPropertyUpdater property = new ConfigurationSystemPropertyUpdater()) {
ConfigurationManager manager = ConfigurationManager.getInstance();
assertNotNull(manager.getUsername());
}
}
private static class ConfigurationSystemPropertyUpdater implements Closeable {
private final String oldValue;
private ConfigurationSystemPropertyUpdater(String value) {
this.oldValue = System.getProperty(ConfigurationManager.CONFIGURATION_YAML_FILE);
System.setProperty(ConfigurationManager.CONFIGURATION_YAML_FILE, value);
}
private ConfigurationSystemPropertyUpdater() {
this.oldValue = System.getProperty(ConfigurationManager.CONFIGURATION_YAML_FILE);
System.clearProperty(ConfigurationManager.CONFIGURATION_YAML_FILE);
}
@Override
public void close() {
if (oldValue == null) {
System.clearProperty(ConfigurationManager.CONFIGURATION_YAML_FILE);
} else {
System.setProperty(ConfigurationManager.CONFIGURATION_YAML_FILE, oldValue);
}
}
}
}
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