RESOLVED - issue BATCH-980: Add SystemPropertyInitializer

spring-batch-infrastructure/src/test/java/org/springframework/batch/support/SystemPropertyInitializerTests.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 2006-2007 the original author or authors.
+ *
+ * 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.springframework.batch.support;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * @author Dave Syer
+ *
+ */
+public class SystemPropertyInitializerTests {
+	
+	private static final String SIMPLE_NAME = SystemPropertyInitializerTests.class.getSimpleName();
+	private SystemPropertyInitializer initializer = new SystemPropertyInitializer();
+	
+	@Before
+	@After
+	public void initializeProperty() {
+		System.clearProperty(SystemPropertyInitializer.ENVIRONMENT);
+		System.clearProperty(SIMPLE_NAME);
+	}
+
+	@Test
+	public void testSetKeyName() throws Exception {
+		initializer.setKeyName(SIMPLE_NAME);
+		System.setProperty(SIMPLE_NAME, "foo");
+		initializer.afterPropertiesSet();
+		assertEquals("foo", System.getProperty(SIMPLE_NAME));
+	}
+
+	@Test
+	public void testSetDefaultValue() throws Exception {
+		initializer.setDefaultValue("foo");
+		initializer.afterPropertiesSet();
+		assertEquals("foo", System.getProperty(SystemPropertyInitializer.ENVIRONMENT));
+	}
+
+	@Test(expected=IllegalStateException.class)
+	public void testNoDefaultValue() throws Exception {
+		initializer.afterPropertiesSet();
+	}
+
+}