content: /*
   * Copyright 2014 Adam Bien.
   *
   * 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 com.airhacks.afterburner.configuration;
  
  /*
   * #%L
   * afterburner.fx
   * %%
   * Copyright (C) 2013 - 2014 Adam Bien
   * %%
   * 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.
   * #L%
   */
  import java.util.function.Function;
  import static org.hamcrest.CoreMatchers.is;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertThat;
  import org.junit.Before;
  import org.junit.Test;
  
  /**
   *
   * @author airhacks.com
   */
  public class ConfiguratorTest {
  
      Configurator cut;
  
      @Before
      public void init() {
          this.cut = new Configurator();
      }
  
      @Test
      public void customConfigurationOverridesDefault() {
          final String expected = "custom";
          Function<Object, Object> supplier = f -> expected;
          this.cut.set(supplier);
          Object actual = this.cut.getProperty(ConfiguratorTest.class, "NOT-A-EXISTING-SYSPROP");
          assertThat(actual, is(expected));
      }
  
      @Test
      public void loggerPassed() {
          this.cut.setLogger((l) -> System.out.println(l));
      }
  
      @Test
      public void systemPropertyWins() {
          final String expected = "custom";
          Function<Object, Object> customSupplier = f -> "something";
          Function<Object, Object> veryCustomSupplier = f -> expected;
          this.cut.set(customSupplier);
          this.cut.set(veryCustomSupplier);
          Object actual = this.cut.getProperty(ConfiguratorTest.class, "java.version");
          assertThat(actual, is(System.getProperty("java.version")));
      }
  
      @Test
      public void customConfigurationProvidesValue() {
          final String expected = "custom";
          Function<Object, Object> supplier = f -> expected;
          this.cut.set(supplier);
          Object actual = this.cut.getProperty(ConfiguratorTest.class, "NOT-EXISTING");
          assertThat(actual, is(expected));
      }
  
      @Test
      public void fetchNonExisting() {
          Object value = this.cut.getProperty(ConfiguratorTest.class, "SHOULD-NOT-EXIST");
          assertNull(value);
      }
  }
  