72 lines
2.3 KiB
Java
72 lines
2.3 KiB
Java
/*
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* Copyright 2010 The Closure Compiler Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.javascript.jscomp;
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/**
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* @author johnlenz@google.com (John Lenz)
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*/
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public class CheckRegExpTest extends CompilerTestCase {
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CheckRegExp last = null;
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public CheckRegExpTest() {
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super("var RegExp;", true);
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}
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@Override
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protected CompilerPass getProcessor(Compiler compiler) {
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compiler.options.setWarningLevel(
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DiagnosticGroups.CHECK_REGEXP, CheckLevel.WARNING);
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last = new CheckRegExp(compiler);
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return last;
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}
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private void testReference(String code, boolean expected) {
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testSame(code, (expected) ? CheckRegExp.REGEXP_REFERENCE : null);
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assertEquals(expected, last.isGlobalRegExpPropertiesUsed());
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}
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public void testRegExp() {
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// Creating regexp's is ok
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testReference("RegExp();", false);
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testReference("var x = RegExp();", false);
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testReference("new RegExp();", false);
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testReference("var x = new RegExp();", false);
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// Checking for RegExp instances is OK, as well.
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testReference("x instanceof RegExp;", false);
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// Any other reference isn't
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testReference("RegExp.test();", true);
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testReference("var x = RegExp.test();", true);
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testReference("RegExp.exec();", true);
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testReference("RegExp.$1;", true);
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testReference("RegExp.foobar;", true);
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testReference("delete RegExp;", true);
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// Aliases aren't allowed
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testReference("var x = RegExp;", true);
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testReference("f(RegExp);", true);
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testReference("new f(RegExp);", true);
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testReference("var x = RegExp; x.test()", true);
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// No RegExp reference is ok
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testReference("var x;", false);
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// Local RegExp is ok
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testReference("function f() {var RegExp; RegExp.test();}", false);
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}
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}
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