Java tutorial
/* * This file is part of Bitsquare. * * Bitsquare is free software: you can redistribute it and/or modify it * under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or (at * your option) any later version. * * Bitsquare is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public * License for more details. * * You should have received a copy of the GNU Affero General Public License * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>. */ package io.bitsquare.app; import io.bitsquare.btc.UserAgent; import org.junit.Test; import org.springframework.core.env.ConfigurableEnvironment; import org.springframework.core.env.Environment; import org.springframework.core.env.MutablePropertySources; import org.springframework.core.env.PropertySource; import org.springframework.mock.env.MockPropertySource; import static io.bitsquare.app.BitsquareEnvironment.*; import static org.hamcrest.CoreMatchers.*; import static org.junit.Assert.*; import static org.springframework.core.env.PropertySource.named; import static org.springframework.core.env.StandardEnvironment.SYSTEM_ENVIRONMENT_PROPERTY_SOURCE_NAME; import static org.springframework.core.env.StandardEnvironment.SYSTEM_PROPERTIES_PROPERTY_SOURCE_NAME; public class BitsquareEnvironmentTests { @Test public void testPropertySourcePrecedence() { PropertySource commandlineProps = new MockPropertySource(BITSQUARE_COMMANDLINE_PROPERTY_SOURCE_NAME) .withProperty("key.x", "x.commandline"); PropertySource filesystemProps = new MockPropertySource(BITSQUARE_FILESYSTEM_PROPERTY_SOURCE_NAME) .withProperty("key.x", "x.env").withProperty("key.y", "y.env"); ConfigurableEnvironment env = new BitsquareEnvironment(commandlineProps) { @Override PropertySource<?> filesystemProperties() { return filesystemProps; } }; MutablePropertySources propertySources = env.getPropertySources(); assertThat(propertySources.precedenceOf(named(BITSQUARE_COMMANDLINE_PROPERTY_SOURCE_NAME)), equalTo(0)); assertThat(propertySources.precedenceOf(named(SYSTEM_PROPERTIES_PROPERTY_SOURCE_NAME)), equalTo(1)); assertThat(propertySources.precedenceOf(named(SYSTEM_ENVIRONMENT_PROPERTY_SOURCE_NAME)), equalTo(2)); assertThat(propertySources.precedenceOf(named(BITSQUARE_FILESYSTEM_PROPERTY_SOURCE_NAME)), equalTo(3)); assertThat(propertySources.precedenceOf(named(BITSQUARE_CLASSPATH_PROPERTY_SOURCE_NAME)), equalTo(4)); assertThat(propertySources.precedenceOf(named(BITSQUARE_DEFAULT_PROPERTY_SOURCE_NAME)), equalTo(5)); assertThat(propertySources.size(), equalTo(6)); assertThat(env.getProperty("key.x"), equalTo("x.commandline")); // commandline value wins due to precedence assertThat(env.getProperty("key.y"), equalTo("y.env")); // env value wins because it's the only one available } @Test public void bitsquareVersionShouldBeAvailable() { // we cannot actually test for the value because (a) it requires Gradle's // processResources task filtering (which does not happen within IDEA) and // (b) because we do not know the specific version to test for. Instead just // test that the property has been made available. Environment env = new BitsquareEnvironment(new MockPropertySource()); assertThat(env.containsProperty(APP_VERSION_KEY), is(true)); assertThat(env.getProperty(UserAgent.VERSION_KEY), equalTo(env.getProperty(APP_VERSION_KEY))); } }