Package com.google.guiceberry

Source Code of com.google.guiceberry.DefaultEnvSelectorTest$MyEnvOne

/*
* Copyright (C) 2010 Google Inc.
*
* 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.google.guiceberry;

import com.google.common.testing.TearDown;
import com.google.common.testing.junit3.TearDownTestCase;
import com.google.inject.AbstractModule;

/**
* @author Luiz-Otavio "Z" Zorzella
*/
public class DefaultEnvSelectorTest extends TearDownTestCase {

  private static final class MyEnvOne extends AbstractModule {
    @Override
    protected void configure() {
      install(new GuiceBerryModule());     
    }
  }
  private static final class MyEnvTwo extends AbstractModule {
    @Override
    protected void configure() {
      install(new GuiceBerryModule());
    }
  }
 
  public void testOverride() {
    assertFalse(DefaultEnvSelector.isOverridden(MyEnvOne.class));
    assertEquals(null, DefaultEnvSelector.getOverride(MyEnvOne.class.getName()));
    GuiceBerryEnvSelector envSelector = DefaultEnvSelector.of(MyEnvOne.class);
    assertEquals(MyEnvOne.class, envSelector.guiceBerryEnvToUse(null));

    override();
   
    assertTrue(DefaultEnvSelector.isOverridden(MyEnvOne.class));
    assertEquals(MyEnvTwo.class, DefaultEnvSelector.getOverride(MyEnvOne.class.getName()));
    envSelector = DefaultEnvSelector.of(MyEnvOne.class);
    assertEquals(MyEnvTwo.class, envSelector.guiceBerryEnvToUse(null));
  }

  private void override() {
    addTearDown(new TearDown() {
     
      public void tearDown() throws Exception {
        DefaultEnvSelector.clearOverride(MyEnvOne.class);
      }
    });
    DefaultEnvSelector.override(MyEnvOne.class, MyEnvTwo.class);
  }
 
  public void testThatTryingToOverrideASecondTimeThrows() {
    override();
    try {
      override();
      fail("Trying to override the same env a second time should throw");
    } catch (IllegalArgumentException expected) {
      assertEquals(String.format(
        "The GuiceBerry Env '%s' is already overridden by '%s'.",
          MyEnvOne.class.getName(), MyEnvTwo.class.getName()),
          expected.getMessage());
    }
  }
}
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