1 /* 2 * Copyright (C) 2012 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.base; 18 19 import junit.framework.TestCase; 20 21 /** 22 * Tests for {@link StandardSystemProperty}. 23 * 24 * @author Kurt Alfred Kluever 25 */ 26 public class StandardSystemPropertyTest extends TestCase { 27 28 public void testGetKeyMatchesString() { 29 for (StandardSystemProperty property : StandardSystemProperty.values()) { 30 String fieldName = property.name(); 31 String expected = Ascii.toLowerCase(fieldName).replaceAll("_", "."); 32 assertEquals(expected, property.key()); 33 } 34 } 35 36 public void testGetValue() { 37 for (StandardSystemProperty property : StandardSystemProperty.values()) { 38 assertEquals(System.getProperty(property.key()), property.value()); 39 } 40 } 41 42 public void testToString() { 43 for (StandardSystemProperty property : StandardSystemProperty.values()) { 44 assertEquals(property.key() + "=" + property.value(), property.toString()); 45 } 46 } 47 48 public void testNoNullValues() { 49 for (StandardSystemProperty property : StandardSystemProperty.values()) { 50 // Even though the contract in System.getProperties() specifies that a value will exist for 51 // all of the listed keys, for some reason the "java.compiler" key returns null in some JVMs. 52 if (property != StandardSystemProperty.JAVA_COMPILER) { 53 assertNotNull(property.value()); 54 } 55 } 56 } 57 } 58
