@Test
public void testPutAllEnv() {
final SystemProperties props = new SystemProperties();
assertNull(props.getEnv("MY_ENV"));
final Map<String, String> env = ImmutableMap.of("MY_ENV", "myvalue");
props.putAllEnv(env);
assertEquals("myvalue", props.getEnv("MY_ENV"));
assertEquals("myvalue", props.get("env.MY_ENV"));
}
@Test
public void testEnv() {
final SystemProperties props = new SystemProperties();
assertNull(props.getEnv("MY_ENV"));
assertNull(props.putEnv("MY_ENV", "myvalue"));
assertEquals("myvalue", props.getEnv("MY_ENV"));
assertEquals("myvalue", props.putEnv("MY_ENV", "othervalue"));
assertEquals("othervalue", props.getEnv("MY_ENV"));
assertEquals("othervalue", props.get("env.MY_ENV"));
}
@Test
public void testDefault() {
final SystemProperties props = SystemProperties.getDefault();
final String propKey = System.getProperties().keySet().iterator().next().toString();
final String propValue = System.getProperties().getProperty(propKey);
assertEquals(propValue, props.get(propKey));
final String envKey = System.getenv().keySet().iterator().next();
final String envValue = System.getenv(envKey);
assertEquals(envValue, props.getEnv(envKey));
}