Add some tests for PropertiesLauncher

spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/PropertiesLauncherTests.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2012-2013 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.boot.loader;
+
+import org.junit.After;
+import org.junit.Test;
+import org.springframework.test.util.ReflectionTestUtils;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author Dave Syer
+ */
+public class PropertiesLauncherTests {
+
+	private PropertiesLauncher launcher = new PropertiesLauncher();
+
+	@After
+	public void close() {
+		System.clearProperty("loader.home");
+		System.clearProperty("loader.path");
+		System.clearProperty("loader.main");
+		System.clearProperty("loader.config.name");
+		System.clearProperty("loader.config.location");
+	}
+
+	@Test
+	public void testDefaultHome() {
+		assertEquals(System.getProperty("user.dir"), this.launcher.getHomeDirectory());
+	}
+
+	@Test
+	public void testUserSpecifiedMain() throws Exception {
+		this.launcher.initialize();
+		assertEquals("demo.Application", this.launcher.getMainClass(null));
+	}
+
+	@Test
+	public void testUserSpecifiedConfigName() throws Exception {
+		System.setProperty("loader.config.name", "foo");
+		this.launcher.initialize();
+		assertEquals("my.Application", this.launcher.getMainClass(null));
+		assertEquals("[etc/]", ReflectionTestUtils.getField(this.launcher, "paths")
+				.toString());
+	}
+
+	@Test
+	public void testSystemPropertySpecifiedMain() throws Exception {
+		System.setProperty("loader.main", "foo.Bar");
+		this.launcher.initialize();
+		assertEquals("foo.Bar", this.launcher.getMainClass(null));
+	}
+
+}

spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/util/SystemPropertyUtilsTests.java

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+/*
+ * Copyright 2012-2013 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.boot.loader.util;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.springframework.boot.loader.util.SystemPropertyUtils;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author Dave Syer
+ */
+public class SystemPropertyUtilsTests {
+
+	@BeforeClass
+	public static void init() {
+		System.setProperty("foo", "bar");
+	}
+
+	@AfterClass
+	public static void close() {
+		System.clearProperty("foo");
+	}
+
+	@Test
+	public void testVanillaPlaceholder() {
+		assertEquals("bar", SystemPropertyUtils.resolvePlaceholders("${foo}"));
+	}
+
+	@Test
+	public void testDefaultValue() {
+		assertEquals("foo", SystemPropertyUtils.resolvePlaceholders("${bar:foo}"));
+	}
+
+	@Test
+	public void testNestedPlaceholder() {
+		assertEquals("foo", SystemPropertyUtils.resolvePlaceholders("${bar:${spam:foo}}"));
+	}
+
+}

spring-boot-tools/spring-boot-loader/src/test/resources/application.properties

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+loader.main: demo.Application
+loader.path: etc/,lib,.

spring-boot-tools/spring-boot-loader/src/test/resources/foo.properties

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+loader.main: my.Application
+loader.path: etc