Add test for PropertyPlaceholderAutoConfiguration

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/PropertyPlaceholderAutoConfigurationTests.java

+/*
+ * 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.autoconfigure;
+
+import org.junit.After;
+import org.junit.Test;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.TestUtils;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
+import org.springframework.util.StringUtils;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author Dave Syer
+ */
+public class PropertyPlaceholderAutoConfigurationTests {
+
+	private AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
+
+	@After
+	public void close() {
+		if (this.context != null) {
+			this.context.close();
+		}
+	}
+
+	@Test
+	public void propertyPlaceholderse() throws Exception {
+		this.context.register(PropertyPlaceholderAutoConfiguration.class,
+				PlaceholderConfig.class);
+		TestUtils.addEnviroment(this.context, "foo:two");
+		this.context.refresh();
+		assertEquals("two", this.context.getBean(PlaceholderConfig.class).getFoo());
+	}
+
+	@Test
+	public void propertyPlaceholdersOverride() throws Exception {
+		this.context.register(PropertyPlaceholderAutoConfiguration.class,
+				PlaceholderConfig.class, PlaceholdersOverride.class);
+		TestUtils.addEnviroment(this.context, "foo:two");
+		this.context.refresh();
+		assertEquals("spam", this.context.getBean(PlaceholderConfig.class).getFoo());
+	}
+
+	@Configuration
+	static class PlaceholderConfig {
+
+		@Value("${foo:bar}")
+		private String foo;
+
+		public String getFoo() {
+			return this.foo;
+		}
+
+	}
+
+	@Configuration
+	static class PlaceholdersOverride {
+
+		@Bean
+		public static PropertySourcesPlaceholderConfigurer morePlaceholders() {
+			PropertySourcesPlaceholderConfigurer configurer = new PropertySourcesPlaceholderConfigurer();
+			configurer.setProperties(StringUtils.splitArrayElementsIntoProperties(
+					new String[] { "foo=spam" }, "="));
+			configurer.setLocalOverride(true);
+			configurer.setOrder(0);
+			return configurer;
+		}
+
+	}
+
+}