/*
* Copyright 2012-2017 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.context.properties.source;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.Environment;
import org.springframework.core.env.MapPropertySource;
import org.springframework.core.env.MutablePropertySources;
import org.springframework.core.env.PropertyResolver;
import org.springframework.core.env.PropertySource;
import org.springframework.core.env.PropertySourcesPropertyResolver;
import org.springframework.core.env.StandardEnvironment;
import org.springframework.core.env.SystemEnvironmentPropertySource;
import static org.assertj.core.api.Assertions.assertThat;
/**
* Tests for {@link ConfigurationPropertySources}.
*
* @author Phillip Webb
*/
public class ConfigurationPropertySourcesTests {
@Rule
public ExpectedException thrown = ExpectedException.none();
@Test
public void attachShouldAddAdapterAtBeginning() throws Exception {
ConfigurableEnvironment environment = new StandardEnvironment();
MutablePropertySources sources = environment.getPropertySources();
sources.addLast(new SystemEnvironmentPropertySource("system",
Collections.<String, Object>singletonMap("SERVER_PORT", "1234")));
sources.addLast(new MapPropertySource("config",
Collections.<String, Object>singletonMap("server.port", "4568")));
int size = sources.size();
ConfigurationPropertySources.attach(environment);
assertThat(sources.size()).isEqualTo(size + 1);
PropertyResolver resolver = new PropertySourcesPropertyResolver(sources);
assertThat(resolver.getProperty("server.port")).isEqualTo("1234");
}
@Test
public void getWhenNotAttachedShouldReturnAdapted() throws Exception {
ConfigurableEnvironment environment = new StandardEnvironment();
assertThat(ConfigurationPropertySources.get(environment)).isNotEmpty();
}
@Test
public void getWhenAttachedShouldReturnAttached() throws Exception {
ConfigurableEnvironment environment = new StandardEnvironment();
MutablePropertySources sources = environment.getPropertySources();
sources.addFirst(new MapPropertySource("test",
Collections.<String, Object>singletonMap("a", "b")));
int expectedSize = sources.size();
ConfigurationPropertySources.attach(environment);
assertThat(ConfigurationPropertySources.get(environment)).hasSize(expectedSize);
}
@Test
public void environmentProperyExpansionShouldWorkWhenAttached() throws Exception {
ConfigurableEnvironment environment = new StandardEnvironment();
Map<String, Object> source = new LinkedHashMap<>();
source.put("fooBar", "Spring ${barBaz} ${bar-baz}");
source.put("barBaz", "Boot");
PropertySource<?> propertySource = new MapPropertySource("test", source);
environment.getPropertySources().addFirst(propertySource);
ConfigurationPropertySources.attach(environment);
assertThat(environment.getProperty("foo-bar")).isEqualTo("Spring Boot Boot");
}
@Test
public void fromPropertySourceShouldReturnSpringConfigurationPropertySource()
throws Exception {
PropertySource<?> source = new MapPropertySource("foo",
Collections.<String, Object>singletonMap("foo", "bar"));
ConfigurationPropertySource configurationPropertySource = ConfigurationPropertySources
.from(source).iterator().next();
assertThat(configurationPropertySource)
.isInstanceOf(SpringConfigurationPropertySource.class);
}
@Test
public void fromPropertySourcseShouldFlattenPropertySources() throws Exception {
StandardEnvironment environment = new StandardEnvironment();
environment.getPropertySources().addFirst(new MapPropertySource("foo",
Collections.<String, Object>singletonMap("foo", "bar")));
environment.getPropertySources().addFirst(new MapPropertySource("far",
Collections.<String, Object>singletonMap("far", "far")));
MutablePropertySources sources = new MutablePropertySources();
sources.addFirst(new PropertySource<Environment>("env", environment) {
@Override
public String getProperty(String key) {
return this.source.getProperty(key);
}
});
sources.addLast(new MapPropertySource("baz",
Collections.<String, Object>singletonMap("baz", "barf")));
Iterable<ConfigurationPropertySource> configurationSources = ConfigurationPropertySources
.from(sources);
assertThat(configurationSources.iterator()).hasSize(5);
}
}