RemoveDefaultDeclarationsTest.java

/*
 * Copyright 2009 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.common.css.compiler.passes;

import com.google.common.css.compiler.ast.BackDoorNodeMutation;
import com.google.common.css.compiler.ast.CssDeclarationNode;
import com.google.common.css.compiler.ast.CssLiteralNode;
import com.google.common.css.compiler.ast.CssPriorityNode;
import com.google.common.css.compiler.ast.CssPropertyNode;
import com.google.common.css.compiler.ast.CssPropertyValueNode;
import com.google.common.css.compiler.ast.MutatingVisitController;

import junit.framework.TestCase;

import org.easymock.EasyMock;
import org.easymock.IMocksControl;

/**
 * Unit tests for {@link RemoveDefaultDeclarations}.
 * 
 * @author oana@google.com (Oana Florescu)
 */
public class RemoveDefaultDeclarationsTest extends TestCase {

  public void testRunPass() {
    IMocksControl controller = EasyMock.createStrictControl();
    MutatingVisitController visitController = controller.createMock(
        MutatingVisitController.class);

    RemoveDefaultDeclarations pass
        = new RemoveDefaultDeclarations(visitController);
    visitController.startVisit(pass);
    controller.replay();

    pass.runPass();
    controller.verify();
  }

  public void testEnterDeclaration1() {
    IMocksControl controller = EasyMock.createStrictControl();
    MutatingVisitController visitController = controller.createMock(
        MutatingVisitController.class);
    visitController.removeCurrentNode();
    controller.replay();

    RemoveDefaultDeclarations pass
        = new RemoveDefaultDeclarations(visitController);

    CssDeclarationNode node = new CssDeclarationNode(new CssPropertyNode("foo"));
    pass.enterDeclaration(node);

    controller.verify();
  }

  public void testEnterDeclaration2() {
    IMocksControl controller = EasyMock.createStrictControl();
    MutatingVisitController visitController = controller.createMock(
        MutatingVisitController.class);
    visitController.removeCurrentNode();
    controller.replay();

    RemoveDefaultDeclarations pass
        = new RemoveDefaultDeclarations(visitController);

    CssDeclarationNode declaration = new CssDeclarationNode(
        new CssPropertyNode("property"),
        new CssPropertyValueNode());
    CssLiteralNode value = new CssLiteralNode("value");
    value.setIsDefault(true);
    BackDoorNodeMutation.addPropertyValueToDeclaration(declaration, value);

    pass.enterDeclaration(declaration);
    controller.verify();
  }

  /**
   * Two default values: remove entire declaration 
   */
  public void testEnterDeclaration3() {
    IMocksControl controller = EasyMock.createStrictControl();
    MutatingVisitController visitController = controller.createMock(
        MutatingVisitController.class);
    visitController.removeCurrentNode();
    controller.replay();

    RemoveDefaultDeclarations pass
        = new RemoveDefaultDeclarations(visitController);

    CssDeclarationNode declaration = new CssDeclarationNode(
        new CssPropertyNode("prop"),
        new CssPropertyValueNode());
    CssLiteralNode value = new CssLiteralNode("att1");
    value.setIsDefault(true);
    BackDoorNodeMutation.addPropertyValueToDeclaration(declaration, value);
    CssLiteralNode value1 = new CssLiteralNode("att2");
    value1.setIsDefault(true);
    BackDoorNodeMutation.addPropertyValueToDeclaration(declaration, value1);

    pass.enterDeclaration(declaration);
    controller.verify();
  }

  /**
   * One default value, one non-default value: remove the default value 
   */
  public void testEnterDeclaration4() {
    IMocksControl controller = EasyMock.createStrictControl();
    MutatingVisitController visitController = controller.createMock(
        MutatingVisitController.class);
    visitController.removeCurrentNode();
    controller.replay();

    RemoveDefaultDeclarations pass
        = new RemoveDefaultDeclarations(visitController);

    CssDeclarationNode declaration = new CssDeclarationNode(
        new CssPropertyNode("prop"),
        new CssPropertyValueNode());
    CssLiteralNode value = new CssLiteralNode("att1");
    value.setIsDefault(true);
    BackDoorNodeMutation.addPropertyValueToDeclaration(declaration, value);
    CssLiteralNode value1 = new CssLiteralNode("att2");
    value1.setIsDefault(false);
    BackDoorNodeMutation.addPropertyValueToDeclaration(declaration, value1);

    pass.enterDeclaration(declaration);
    pass.enterValueNode(value);
    pass.enterValueNode(value1);
    controller.verify();
  }

  /**
   * One default value, one non-default value, but property has position
   * dependent values: remove no values.
   */
  public void testEnterDeclaration5() {
    IMocksControl controller = EasyMock.createStrictControl();
    MutatingVisitController visitController = controller.createMock(
        MutatingVisitController.class);
    controller.replay();

    RemoveDefaultDeclarations pass
        = new RemoveDefaultDeclarations(visitController);

    CssDeclarationNode declaration = new CssDeclarationNode(
        new CssPropertyNode("margin"),
        new CssPropertyValueNode());
    CssLiteralNode value = new CssLiteralNode("att1");
    value.setIsDefault(true);
    BackDoorNodeMutation.addPropertyValueToDeclaration(declaration, value);
    CssLiteralNode value1 = new CssLiteralNode("att2");
    value1.setIsDefault(false);
    BackDoorNodeMutation.addPropertyValueToDeclaration(declaration, value1);

    pass.enterDeclaration(declaration);
    pass.enterValueNode(value);
    pass.enterValueNode(value1);
    pass.leaveDeclaration(declaration);
    controller.verify();
  }

  public void testEnterValueNotDefault() {
    IMocksControl controller = EasyMock.createStrictControl();
    MutatingVisitController visitController = controller.createMock(
        MutatingVisitController.class);
    controller.replay();

    RemoveDefaultDeclarations pass
        = new RemoveDefaultDeclarations(visitController);

    CssLiteralNode value = new CssLiteralNode("att");
    value.setIsDefault(false);

    pass.enterValueNode(value);
    controller.verify();
  }

  public void testEnterValueDefault() {
    IMocksControl controller = EasyMock.createStrictControl();
    MutatingVisitController visitController = controller.createMock(
        MutatingVisitController.class);
    controller.replay();

    RemoveDefaultDeclarations pass
        = new RemoveDefaultDeclarations(visitController);

    CssLiteralNode value = new CssLiteralNode("att");
    value.setIsDefault(true);

    pass.enterValueNode(value);
    controller.verify();
  }

  /**
   * Two default values and !important flag: don't delete them. 
   */
  public void testImportantDefault() {
    IMocksControl controller = EasyMock.createStrictControl();
    MutatingVisitController visitController = controller.createMock(
        MutatingVisitController.class);
    controller.replay();

    RemoveDefaultDeclarations pass
        = new RemoveDefaultDeclarations(visitController);

    CssDeclarationNode declaration = new CssDeclarationNode(
        new CssPropertyNode("prop"),
        new CssPropertyValueNode());
    CssLiteralNode value = new CssLiteralNode("att1");
    CssPriorityNode importantValue = new CssPriorityNode(CssPriorityNode.
        PriorityType.IMPORTANT);
    importantValue.setValue("importantAtt");
    value.setIsDefault(true);
    BackDoorNodeMutation.addPropertyValueToDeclaration(declaration, value);
    BackDoorNodeMutation.addPropertyValueToDeclaration(declaration, 
        importantValue);

    pass.enterDeclaration(declaration);
    pass.leaveDeclaration(declaration);
    controller.verify();
  }
}