/*
* 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 static org.easymock.EasyMock.createMock;
import static org.easymock.EasyMock.expect;
import static org.easymock.EasyMock.replay;
import static org.easymock.EasyMock.verify;
import com.google.common.base.Joiner;
import com.google.common.css.SourceCode;
import com.google.common.css.compiler.ast.BackDoorNodeMutation;
import com.google.common.css.compiler.ast.CssBlockNode;
import com.google.common.css.compiler.ast.CssDeclarationNode;
import com.google.common.css.compiler.ast.CssNumericNode;
import com.google.common.css.compiler.ast.CssPropertyNode;
import com.google.common.css.compiler.ast.CssPropertyValueNode;
import com.google.common.css.compiler.ast.CssRootNode;
import com.google.common.css.compiler.ast.CssRulesetNode;
import com.google.common.css.compiler.ast.CssSelectorNode;
import com.google.common.css.compiler.ast.CssTree;
import com.google.common.css.compiler.ast.GssParser;
import com.google.common.css.compiler.ast.MutatingVisitController;
import com.google.common.css.compiler.passes.testing.AstPrinter;
import junit.framework.TestCase;
/**
* Unit tests for {@link MergeAdjacentRulesetNodesWithSameSelector}.
*
* @author oana@google.com (Oana Florescu)
*/
public class MergeAdjacentRulesetNodesWithSameSelectorTest extends TestCase {
public void testRunPass() {
MutatingVisitController visitController = createMock(
MutatingVisitController.class);
CssTree tree = createMock(CssTree.class);
expect(tree.getMutatingVisitController()).andReturn(visitController)
.anyTimes();
replay(tree);
MergeAdjacentRulesetNodesWithSameSelector pass =
new MergeAdjacentRulesetNodesWithSameSelector(tree);
visitController.startVisit(pass);
replay(visitController);
pass.runPass();
verify(visitController);
}
public void testEnterTree() {
CssTree tree = new CssTree((SourceCode) null);
tree.getRulesetNodesToRemove().addRulesetNode(new CssRulesetNode());
assertFalse(tree.getRulesetNodesToRemove().getRulesetNodes().isEmpty());
MergeAdjacentRulesetNodesWithSameSelector pass =
new MergeAdjacentRulesetNodesWithSameSelector(tree);
pass.enterTree(tree.getRoot());
assertTrue(tree.getRulesetNodesToRemove().getRulesetNodes().isEmpty());
}
public void testPassResult() throws Exception {
CssTree tree = new GssParser(new SourceCode(null, lines(
"@-moz-document url-prefix() {",
" foo {",
" padding: 6px;",
" }",
" foo {",
" margin: 4px;",
" }",
"}",
"foo, .bar #id {",
" padding: 5px;",
"}",
"foo, .bar #id {",
" margin: 2px;",
"}"))).parse();
assertEquals(
"[@-moz-document [url-prefix()]"
+ "{[foo]{[padding:[[6px]];]}[foo]{[margin:[[4px]];]}}"
+ "[foo,.bar #id]{[padding:[[5px]];]}"
+ "[foo,.bar #id]{[margin:[[2px]];]}]",
AstPrinter.print(tree));
MergeAdjacentRulesetNodesWithSameSelector pass =
new MergeAdjacentRulesetNodesWithSameSelector(tree);
pass.runPass();
// As the elimination pass is not run here, we still have the one of the old
// rulesets in each place.
assertEquals(
"[@-moz-document [url-prefix()]"
+ "{[foo]{[padding:[[6px]];margin:[[4px]];]}[foo]{[margin:[[4px]];]}}"
+ "[foo,.bar #id]{[padding:[[5px]];margin:[[2px]];]}"
+ "[foo,.bar #id]{[margin:[[2px]];]}]",
AstPrinter.print(tree));
}
public void testPassResult2() {
CssPropertyNode prop1 = new CssPropertyNode("padding", null);
CssPropertyValueNode value1 = new CssPropertyValueNode();
BackDoorNodeMutation.addChildToBack(value1, new CssNumericNode("5", "px"));
CssDeclarationNode decl1 = new CssDeclarationNode(prop1);
decl1.setPropertyValue(value1);
CssPropertyNode prop2 = new CssPropertyNode("display", null);
CssPropertyValueNode value2 = new CssPropertyValueNode();
BackDoorNodeMutation.addChildToBack(value2, new CssNumericNode("2", "px"));
CssDeclarationNode decl2 = new CssDeclarationNode(prop2);
decl2.setPropertyValue(value2);
CssRulesetNode ruleset1 = new CssRulesetNode();
CssSelectorNode sel1 = new CssSelectorNode("foo", null);
ruleset1.addSelector(sel1);
ruleset1.addDeclaration(decl1);
CssRulesetNode ruleset2 = new CssRulesetNode();
CssSelectorNode sel2 = new CssSelectorNode("foo", null);
ruleset2.addSelector(sel2);
ruleset2.addDeclaration(decl2);
CssBlockNode body = new CssBlockNode(false);
BackDoorNodeMutation.addChildToBack(body, ruleset1);
BackDoorNodeMutation.addChildToBack(body, ruleset2);
CssRootNode root = new CssRootNode(body);
CssTree tree = new CssTree(null, root);
assertEquals(tree.getRoot().getBody().toString(),
"[[foo]{[padding:[5px]]}, [foo]{[display:[2px]]}]");
MergeAdjacentRulesetNodesWithSameSelector pass =
new MergeAdjacentRulesetNodesWithSameSelector(tree, true);
pass.runPass();
// skip merging rules with display -> we expect output == input
assertEquals(tree.getRoot().getBody().toString(),
"[[foo]{[padding:[5px]]}, [foo]{[display:[2px]]}]");
}
private String lines(String... lines) {
return Joiner.on("\n").join(lines);
}
}