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/*
* Copyright 2008 The Closure Compiler Authors.
*
* 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.javascript.jscomp;
import com.google.common.collect.ImmutableMap;
/**
* Test cases for {@link NameAnonymousFunctionsMapped}.
*
*/
public class NameAnonymousFunctionsMappedTest extends CompilerTestCase {
private static final String EXTERNS = "var document;";
private NameAnonymousFunctionsMapped pass;
private VariableMap previous;
public NameAnonymousFunctionsMappedTest() {
super(EXTERNS);
}
@Override
protected int getNumRepetitions() {
return 1;
}
@Override
protected void setUp() throws Exception {
super.setUp();
previous = null;
}
@Override
public CompilerPass getProcessor(Compiler compiler) {
return pass = new NameAnonymousFunctionsMapped(compiler, previous);
}
private void assertMapping(String... pairs) {
VariableMap functionMap = pass.getFunctionMap();
assertTrue(pairs.length % 2 == 0);
for (int i = 0; i < pairs.length; i += 2) {
String s = functionMap.lookupSourceName(pairs[i]);
assertEquals(pairs[i + 1], s);
}
assertEquals(pairs.length / 2,
functionMap.getNewNameToOriginalNameMap().size());
}
public void testSimpleVarAssignment1() {
test("var a = function() { return 1; }",
"var a = function $() { return 1; }");
assertMapping("$", "a");
}
public void testSimpleVarAssignment2() {
previous = VariableMap.fromMap(ImmutableMap.<String,String>of(
"a", "previous"));
test("var a = function() { return 1; }",
"var a = function previous() { return 1; }");
assertMapping("previous", "a");
}
public void testSimpleVarAssignment3() {
previous = VariableMap.fromMap(ImmutableMap.<String,String>of(
"unused", "$"));
test("var fn = function() { return 1; }",
"var fn = function $a() { return 1; }");
assertMapping("$a", "fn");
}
public void testAssignmentToProperty() {
test("var a = {}; a.b = function() { return 1; }",
"var a = {}; a.b = function $() { return 1; }");
assertMapping("$", "a.b");
}
public void testAssignmentToPrototype() {
test("function a() {} a.prototype.b = function() { return 1; };",
"function a() {} " +
"a.prototype.b = function $() { return 1; };");
assertMapping("$", "a.prototype.b");
}
public void testAssignmentToPrototype2() {
test("var a = {}; " +
"a.b = function() {}; " +
"a.b.prototype.c = function() { return 1; };",
"var a = {}; " +
"a.b = function $() {}; " +
"a.b.prototype.c = function $a() { return 1; };");
assertMapping("$", "a.b", "$a", "a.b.prototype.c");
}
public void testAssignmentToPrototype3() {
test("function a() {} a.prototype['XXX'] = function() { return 1; };",
"function a() {} " +
"a.prototype['XXX'] = function $() { return 1; };");
assertMapping("$", "a.prototype[\"XXX\"]");
test("function a() {} a.prototype['\\n'] = function() { return 1; };",
"function a() {} " +
"a.prototype['\\n'] = function $() { return 1; };");
assertMapping("$", "a.prototype[\"\\n\"]");
}
public void testAssignmentToPrototype4() {
test("var Y = 1; function a() {} " +
"a.prototype[Y] = function() { return 1; };",
"var Y = 1; function a() {} " +
"a.prototype[Y] = function $() { return 1; };");
assertMapping("$", "a.prototype[Y]");
}
public void testAssignmentToPrototype5() {
test("function a() {} a['prototype'].b = function() { return 1; };",
"function a() {} " +
"a['prototype'].b = function $() { return 1; };");
assertMapping("$", "a[\"prototype\"].b");
}
public void testPrototypeInitializer() {
test("function a(){} a.prototype = {b: function() { return 1; }};",
"function a(){} " +
"a.prototype = {b: function $() { return 1; }};");
assertMapping("$", "a.prototype.b");
}
public void testAssignmentToPropertyOfCallReturnValue() {
test("document.getElementById('x').onClick = function() {};",
"document.getElementById('x').onClick = " +
"function $() {};");
assertMapping("$", "document.getElementById(\"x\").onClick");
}
public void testAssignmentToPropertyOfArrayElement() {
test("var a = {}; a.b = [{}]; a.b[0].c = function() {};",
"var a = {}; a.b = [{}]; a.b[0].c = function $() {};");
assertMapping("$", "a.b[0].c");
test("var a = {b: {'c': {}}}; a.b['c'].d = function() {};",
"var a = {b: {'c': {}}}; a.b['c'].d = function $() {};");
assertMapping("$", "a.b[\"c\"].d");
test("var a = {b: {'c': {}}}; a.b[x()].d = function() {};",
"var a = {b: {'c': {}}}; a.b[x()].d = function $() {};");
assertMapping("$", "a.b[x()].d");
}
public void testAssignmentToGetElem() {
test("function f() { win['x' + this.id] = function(a){}; }",
"function f() { win['x' + this.id] = function $(a){}; }");
// TODO - could probably do a better job encoding these
assertMapping("$", "win[\"x\"+this.id]");
}
public void testGetElemWithDashes() {
test("var foo = {}; foo['-'] = function() {};",
"var foo = {}; foo['-'] = function $() {};");
assertMapping("$", "foo[\"-\"]");
}
public void testDuplicateNames() {
test("var a = function() { return 1; };a = function() { return 2; }",
"var a = function $() { return 1; };a = function $() { return 2; }");
assertMapping("$", "a");
}
}
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