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/*
* SonarQube
* Copyright (C) 2009-2017 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.api.utils;
import java.io.Closeable;
import java.io.IOException;
import java.util.Map;
import java.util.Properties;
import java.util.TimeZone;
import org.apache.commons.lang.SystemUtils;
import org.junit.Test;
import static java.util.UUID.randomUUID;
import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.Assert.fail;
public class System2Test {
@Test
public void testNow() {
long start = System.currentTimeMillis();
long now = System2.INSTANCE.now();
long end = System.currentTimeMillis();
assertThat(now).isGreaterThanOrEqualTo(start).isLessThanOrEqualTo(end);
}
@Test
public void testProperties() {
Properties expected = System.getProperties();
assertThat(System2.INSTANCE.properties()).isNotNull().isEqualTo(expected);
}
@Test
public void testProperty() {
String expected = System.getProperty("java.version");
assertThat(System2.INSTANCE.property("java.version")).isNotNull().isEqualTo(expected);
}
@Test
public void testSetProperty() {
String key = "System2Test.testSetProperty";
String value = randomUUID().toString();
System2.INSTANCE.setProperty(key, value);
assertThat(System2.INSTANCE.property(key)).isEqualTo(value);
}
@Test
public void testEnvVariables() {
Map<String, String> expected = System.getenv();
assertThat(System2.INSTANCE.envVariables()).isNotNull().isEqualTo(expected);
}
@Test
public void testEnvVariable() {
// assume that there's at least one env variable
if (System.getenv().isEmpty()) {
fail("Test can't succeed because there are no env variables. How is it possible ?");
}
String key = System.getenv().keySet().iterator().next();
String expected = System.getenv(key);
assertThat(System2.INSTANCE.envVariable(key)).isNotNull().isEqualTo(expected);
assertThat(System2.INSTANCE.envVariable("UNKNOWN_VAR")).isNull();
}
@Test
public void testIsOsWindows() {
assertThat(System2.INSTANCE.isOsWindows()).isEqualTo(SystemUtils.IS_OS_WINDOWS);
}
@Test
public void testIsJavaAtLeast17() {
if (SystemUtils.IS_JAVA_1_6) {
assertThat(System2.INSTANCE.isJavaAtLeast17()).isFalse();
} else {
assertThat(System2.INSTANCE.isJavaAtLeast17()).isTrue();
}
}
@Test
public void testPrintln() {
// well, how to assert that ? Adding a System3 dependency to System2 ? :-)
System2.INSTANCE.println("foo");
}
@Test
public void testGetResource() {
String name = "META-INF/MANIFEST.MF";
assertThat(System2.INSTANCE.getResource(name)).isEqualTo(getClass().getResource(name));
}
@Test
public void close() {
class MyCloseable implements Closeable {
boolean isClosed = false;
@Override
public void close() throws IOException {
isClosed = true;
}
}
MyCloseable closeable = new MyCloseable();
System2.INSTANCE.close(closeable);
assertThat(closeable.isClosed).isTrue();
}
@Test
public void close_throws_exception_on_error() {
Closeable closeable = new Closeable() {
@Override
public void close() throws IOException {
throw new IOException("expected");
}
};
try {
System2.INSTANCE.close(closeable);
fail();
} catch (IllegalStateException e) {
assertThat(e.getCause().getMessage()).isEqualTo("expected");
}
}
@Test
public void getDefaultTimezone() {
assertThat(System2.INSTANCE.getDefaultTimeZone().getID()).isEqualTo(TimeZone.getDefault().getID());
}
}
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