/*
* Copyright 2002-2012 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.core.env;
import org.junit.Test;
import org.springframework.mock.env.MockPropertySource;
import static java.lang.String.format;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import static org.springframework.core.env.MutablePropertySources.*;
/**
* Unit tests for {@link MutablePropertySources}
*
* @author Chris Beams
*/
public class MutablePropertySourcesTests {
@Test
public void test() {
MutablePropertySources sources = new MutablePropertySources();
sources.addLast(new MockPropertySource("b").withProperty("p1", "bValue"));
sources.addLast(new MockPropertySource("d").withProperty("p1", "dValue"));
sources.addLast(new MockPropertySource("f").withProperty("p1", "fValue"));
assertThat(sources.size(), equalTo(3));
assertThat(sources.contains("a"), is(false));
assertThat(sources.contains("b"), is(true));
assertThat(sources.contains("c"), is(false));
assertThat(sources.contains("d"), is(true));
assertThat(sources.contains("e"), is(false));
assertThat(sources.contains("f"), is(true));
assertThat(sources.contains("g"), is(false));
assertThat(sources.get("b"), not(nullValue()));
assertThat(sources.get("b").getProperty("p1"), equalTo((Object)"bValue"));
assertThat(sources.get("d"), not(nullValue()));
assertThat(sources.get("d").getProperty("p1"), equalTo((Object)"dValue"));
sources.addBefore("b", new MockPropertySource("a"));
sources.addAfter("b", new MockPropertySource("c"));
assertThat(sources.size(), equalTo(5));
assertThat(sources.precedenceOf(PropertySource.named("a")), is(0));
assertThat(sources.precedenceOf(PropertySource.named("b")), is(1));
assertThat(sources.precedenceOf(PropertySource.named("c")), is(2));
assertThat(sources.precedenceOf(PropertySource.named("d")), is(3));
assertThat(sources.precedenceOf(PropertySource.named("f")), is(4));
sources.addBefore("f", new MockPropertySource("e"));
sources.addAfter("f", new MockPropertySource("g"));
assertThat(sources.size(), equalTo(7));
assertThat(sources.precedenceOf(PropertySource.named("a")), is(0));
assertThat(sources.precedenceOf(PropertySource.named("b")), is(1));
assertThat(sources.precedenceOf(PropertySource.named("c")), is(2));
assertThat(sources.precedenceOf(PropertySource.named("d")), is(3));
assertThat(sources.precedenceOf(PropertySource.named("e")), is(4));
assertThat(sources.precedenceOf(PropertySource.named("f")), is(5));
assertThat(sources.precedenceOf(PropertySource.named("g")), is(6));
sources.addLast(new MockPropertySource("a"));
assertThat(sources.size(), equalTo(7));
assertThat(sources.precedenceOf(PropertySource.named("b")), is(0));
assertThat(sources.precedenceOf(PropertySource.named("c")), is(1));
assertThat(sources.precedenceOf(PropertySource.named("d")), is(2));
assertThat(sources.precedenceOf(PropertySource.named("e")), is(3));
assertThat(sources.precedenceOf(PropertySource.named("f")), is(4));
assertThat(sources.precedenceOf(PropertySource.named("g")), is(5));
assertThat(sources.precedenceOf(PropertySource.named("a")), is(6));
sources.addFirst(new MockPropertySource("a"));
assertThat(sources.size(), equalTo(7));
assertThat(sources.precedenceOf(PropertySource.named("a")), is(0));
assertThat(sources.precedenceOf(PropertySource.named("b")), is(1));
assertThat(sources.precedenceOf(PropertySource.named("c")), is(2));
assertThat(sources.precedenceOf(PropertySource.named("d")), is(3));
assertThat(sources.precedenceOf(PropertySource.named("e")), is(4));
assertThat(sources.precedenceOf(PropertySource.named("f")), is(5));
assertThat(sources.precedenceOf(PropertySource.named("g")), is(6));
assertEquals(sources.remove("a"), PropertySource.named("a"));
assertThat(sources.size(), equalTo(6));
assertThat(sources.contains("a"), is(false));
assertEquals(sources.remove("a"), null);
assertThat(sources.size(), equalTo(6));
String bogusPS = "bogus";
try {
sources.addAfter(bogusPS, new MockPropertySource("h"));
fail("expected non-existent PropertySource exception");
} catch (IllegalArgumentException ex) {
assertThat(ex.getMessage(),
equalTo(format(NON_EXISTENT_PROPERTY_SOURCE_MESSAGE, bogusPS)));
}
sources.addFirst(new MockPropertySource("a"));
assertThat(sources.size(), equalTo(7));
assertThat(sources.precedenceOf(PropertySource.named("a")), is(0));
assertThat(sources.precedenceOf(PropertySource.named("b")), is(1));
assertThat(sources.precedenceOf(PropertySource.named("c")), is(2));
sources.replace("a", new MockPropertySource("a-replaced"));
assertThat(sources.size(), equalTo(7));
assertThat(sources.precedenceOf(PropertySource.named("a-replaced")), is(0));
assertThat(sources.precedenceOf(PropertySource.named("b")), is(1));
assertThat(sources.precedenceOf(PropertySource.named("c")), is(2));
sources.replace("a-replaced", new MockPropertySource("a"));
try {
sources.replace(bogusPS, new MockPropertySource("bogus-replaced"));
fail("expected non-existent PropertySource exception");
} catch (IllegalArgumentException ex) {
assertThat(ex.getMessage(),
equalTo(format(NON_EXISTENT_PROPERTY_SOURCE_MESSAGE, bogusPS)));
}
try {
sources.addBefore("b", new MockPropertySource("b"));
fail("expected exception");
} catch (IllegalArgumentException ex) {
assertThat(ex.getMessage(),
equalTo(format(ILLEGAL_RELATIVE_ADDITION_MESSAGE, "b")));
}
try {
sources.addAfter("b", new MockPropertySource("b"));
fail("expected exception");
} catch (IllegalArgumentException ex) {
assertThat(ex.getMessage(),
equalTo(format(ILLEGAL_RELATIVE_ADDITION_MESSAGE, "b")));
}
}
@Test
public void getNonExistentPropertySourceReturnsNull() {
MutablePropertySources sources = new MutablePropertySources();
assertThat(sources.get("bogus"), nullValue());
}
}