117 lines
3.2 KiB
Java
117 lines
3.2 KiB
Java
/*
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* Copyright 2012 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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* Tests for CheckSuspiciousCode
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*/
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public class CheckSuspiciousCodeTest extends CompilerTestCase {
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public CheckSuspiciousCodeTest() {
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this.parseTypeInfo = true;
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}
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@Override
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protected CompilerPass getProcessor(Compiler compiler) {
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return new CombinedCompilerPass(compiler,
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new CheckSuspiciousCode());
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}
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@Override
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protected int getNumRepetitions() {
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return 1;
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}
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public void test(String js, DiagnosticType error) {
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test(js, js, null, error);
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}
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public void testSuspiciousSemi() {
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final DiagnosticType e = CheckSuspiciousCode.SUSPICIOUS_SEMICOLON;
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final DiagnosticType ok = null; // code is 'ok', verify no warning
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test("if(x()) x = y;", ok);
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test("if(x()); x = y;", e); // I've had this bug, damned ;
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test("if(x()){} x = y;", ok);
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test("if(x()) x = y; else y=z;", ok);
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test("if(x()); else y=z;", e);
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test("if(x()){} else y=z;", ok);
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test("if(x()) x = y; else;", e);
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test("if(x()) x = y; else {}", ok);
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test("while(x()) x = y;", ok);
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test("while(x()); x = y;", e);
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test("while(x()){} x = y;", ok);
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test("while(x()); {x = y}", e);
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test("while(x()){} {x = y}", ok);
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test("for(;;) x = y;", ok);
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test("for(;;); x = y;", e);
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test("for(;;){} x = y;", ok);
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test("for(x in y) x = y;", ok);
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test("for(x in y); x = y;", e);
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test("for(x in y){} x = y;", ok);
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}
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private void testReportNaN(String js) {
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testSame(js, CheckSuspiciousCode.SUSPICIOUS_COMPARISON_WITH_NAN);
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}
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public void testComparison1() {
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testReportNaN("x == NaN");
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testReportNaN("x != NaN");
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testReportNaN("x === NaN");
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testReportNaN("x !== NaN");
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testReportNaN("x < NaN");
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testReportNaN("x <= NaN");
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testReportNaN("x > NaN");
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testReportNaN("x >= NaN");
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}
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public void testComparison2() {
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testReportNaN("NaN == x");
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testReportNaN("NaN != x");
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testReportNaN("NaN === x");
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testReportNaN("NaN !== x");
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testReportNaN("NaN < x");
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testReportNaN("NaN <= x");
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testReportNaN("NaN > x");
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testReportNaN("NaN >= x");
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}
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public void testComparison3() {
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testReportNaN("x == 0/0");
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testReportNaN("x != 0/0");
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testReportNaN("x === 0/0");
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testReportNaN("x !== 0/0");
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testReportNaN("x < 0/0");
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testReportNaN("x <= 0/0");
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testReportNaN("x > 0/0");
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testReportNaN("x >= 0/0");
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}
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public void testComparison4() {
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testReportNaN("0/0 == x");
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testReportNaN("0/0 != x");
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testReportNaN("0/0 === x");
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testReportNaN("0/0 !== x");
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testReportNaN("0/0 < x");
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testReportNaN("0/0 <= x");
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testReportNaN("0/0 > x");
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testReportNaN("0/0 >= x");
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}
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}
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