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ConstParamCheckTest.java
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ConstParamCheckTest.java
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/*
* Copyright 2013 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.javascript.jscomp.CompilerOptions.LanguageMode;
/**
* Tests for {@link ConstParamCheck}.
*/
public final class ConstParamCheckTest extends CompilerTestCase {
static final String CLOSURE_DEFS = ""
+ "var goog = {};"
+ "goog.string = {};"
+ "goog.string.Const = {};"
+ "goog.string.Const.from = function(x) {};";
@Override
protected void setUp() throws Exception {
super.setUp();
enableInferConsts();
enableNormalize();
setAcceptedLanguage(LanguageMode.ECMASCRIPT_2017);
}
@Override
protected CompilerPass getProcessor(Compiler compiler) {
return new ConstParamCheck(compiler);
}
@Override
protected int getNumRepetitions() {
return 1;
}
// Tests for string literal arguments.
public void testStringLiteralArgument() {
testSame(CLOSURE_DEFS
+ "goog.string.Const.from('foo');");
}
public void testTemplateLiteralArgument1() {
testNoWarning(CLOSURE_DEFS + "goog.string.Const.from(`foo`);");
}
public void testTemplateLiteralArgument2() {
testNoWarning(CLOSURE_DEFS
+ "var FOO = `foo`;"
+ "goog.string.Const.from(FOO);");
}
public void testTemplateLiteralWithSubstitutionsArgument1() {
testError(
CLOSURE_DEFS + "goog.string.Const.from(`foo${bar}`);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testTemplateLiteralWithSubstitutionsArgument2() {
testError(CLOSURE_DEFS
+ "var FOO = `foo${bar}`;"
+ "goog.string.Const.from(FOO);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testConcatenatedStringLiteralArgument() {
testSame(CLOSURE_DEFS
+ "goog.string.Const.from('foo' + 'bar' + 'baz');");
}
public void testNotStringLiteralArgument1() {
testError(CLOSURE_DEFS
+ "goog.string.Const.from(null);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testNotStringLiteralArgument2() {
testError(CLOSURE_DEFS
+ "var myFunction = function() {};"
+ "goog.string.Const.from(myFunction());",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testNotStringLiteralArgument3() {
testError(CLOSURE_DEFS
+ "var myFunction = function() {};"
+ "goog.string.Const.from('foo' + myFunction() + 'bar');",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testNotStringLiteralArgumentAliased() {
testError(CLOSURE_DEFS
+ "var myFunction = function() {};"
+ "var mkConst = goog.string.Const.from;"
+ "mkConst(myFunction());",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testNotStringLiteralArgumentAliasedAfterCollapse() {
testError(
CLOSURE_DEFS
+ "var myFunction = function() {};"
+ "var mkConst = goog$string$Const$from;"
+ "mkConst(myFunction());",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testNotStringLiteralArgumentOnCollapsedProperties() {
testError("goog$string$Const$from(null);", ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testStringLiteralTernaryArgument() {
testSame(CLOSURE_DEFS + "var a = false;" + "goog.string.Const.from(a ? 'foo' : 'bar');");
}
public void testStringLiteralComplexExpression() {
testSame(
CLOSURE_DEFS
+ "const domain = 'example.org';"
+ "goog.string.Const.from("
+ "'http' + (Math.random() ? 's' : '') + ':' + domain + '/ponies/');");
}
public void testStringLiteralTernaryArgumentNonConstant() {
testError(
CLOSURE_DEFS
+ "var a = false;"
+ "var f = function() { return 'foo'; };"
+ "goog.string.Const.from(a ? f() : 'bar');",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
// Tests for string literal constant arguments.
public void testStringLiteralConstantArgument() {
testSame(CLOSURE_DEFS
+ "var FOO = 'foo';"
+ "goog.string.Const.from(FOO);");
}
public void testStringLiteralAnnotatedConstantArgument() {
testSame(CLOSURE_DEFS
+ "/** @const */ var foo = 'foo';"
+ "goog.string.Const.from(foo);");
}
public void testStringLiteralConstantArgumentOrder() {
testSame(CLOSURE_DEFS
+ "var myFun = function() { goog.string.Const.from(FOO); };"
+ "var FOO = 'asdf';"
+ "myFun();");
}
public void testConcatenatedStringLiteralConstantArgument() {
testSame(CLOSURE_DEFS
+ "var FOO = 'foo' + 'bar' + 'baz';"
+ "goog.string.Const.from(FOO);");
}
public void testConcatenatedStringLiteralAndConstantArgument() {
testSame(CLOSURE_DEFS
+ "var FOO = 'foo' + 'bar';"
+ "goog.string.Const.from('foo' + FOO + FOO + 'baz');");
}
public void testNotConstantArgument() {
testError(
CLOSURE_DEFS + "var foo = window.location.href;" + "goog.string.Const.from(foo);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testNotStringLiteralConstantArgument1() {
testError(CLOSURE_DEFS
+ "var FOO = null;"
+ "goog.string.Const.from(FOO);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testNotStringLiteralConstantArgument2() {
testError(CLOSURE_DEFS
+ "var myFunction = function() {};"
+ "var FOO = myFunction();"
+ "goog.string.Const.from(FOO);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testNotStringLiteralConstantArgument3() {
testError(
CLOSURE_DEFS + "goog.myFunc = function(param) { goog.string.Const.from(param) };",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testConstStringLiteralConstantArgument1() {
testSame(CLOSURE_DEFS
+ "const FOO = 'foo';"
+ "goog.string.Const.from(FOO);");
}
public void testConstStringLiteralConstantArgument2() {
testSame(CLOSURE_DEFS
+ "const FOO = 'foo';"
+ "const BAR = 'bar';"
+ "goog.string.Const.from(FOO + BAR);");
}
public void testConstNotStringLiteralArgument() {
testError(CLOSURE_DEFS
+ "const myFunction = function() {};"
+ "goog.string.Const.from(myFunction());",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testConstStringLiteralAnnotatedConstantArgument() {
testSame(CLOSURE_DEFS
+ "/** @const */ const foo = 'foo';"
+ "goog.string.Const.from(foo);");
}
public void testConstConcatenatedStringLiteralConstantArgument() {
testSame(CLOSURE_DEFS
+ "const FOO = 'foo' + 'bar' + 'baz';"
+ "goog.string.Const.from(FOO);");
}
public void testConstConcatenatedStringLiteralAndConstantArgument() {
testSame(CLOSURE_DEFS
+ "const FOO = 'foo' + 'bar';"
+ "goog.string.Const.from('foo' + FOO + FOO + 'baz');");
}
public void testAssignStringLiteralConstantArgument() {
testError(CLOSURE_DEFS
+ "FOO = 'foo';"
+ "goog.string.Const.from(FOO);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testLetStringLiteralConstantArgument() {
testSame(CLOSURE_DEFS
+ "let FOO = 'foo';"
+ "goog.string.Const.from(FOO);");
}
public void testLetConcatenatedStringLiteralAndConstantArgument() {
testSame(CLOSURE_DEFS
+ "let FOO = 'foo' + 'bar';"
+ "goog.string.Const.from('foo' + FOO + FOO + 'baz');");
}
public void testLetStringLiteralConstantArgumentOrder() {
testSame(CLOSURE_DEFS
+ "var myFun = function() { goog.string.Const.from(FOO); };"
+ "let FOO = 'asdf';"
+ "myFun();");
}
public void testEnclosingProperty() {
testSame(CLOSURE_DEFS
+ "let f = function() {"
+ " const STR = '~*~*~';"
+ " goog.string.Const.from(STR); }");
}
public void testNotStringLiteralEnhancedObject() {
testError(CLOSURE_DEFS
+ "var FOO = obj('bar');"
+ "goog.string.Const.from(FOO);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testObjectLiteralArgument() {
testError(CLOSURE_DEFS
+ "var FOO = {bar: 'baz'};"
+ "goog.string.Const.from(FOO);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testObjectLiteralGetPropArgument() {
testError(CLOSURE_DEFS
+ "var FOO = {bar: 'baz'};"
+ "goog.string.Const.from(FOO.bar);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testArrayArgument() {
testError(CLOSURE_DEFS
+ "var FOO = ['a', 'b', 'c'];"
+ "goog.string.Const.from(FOO[0]);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
public void testArrayDestructuring() {
testError(CLOSURE_DEFS
+ "var [FOO, BAR] = ['a', 'b'];"
+ "goog.string.Const.from(FOO);",
ConstParamCheck.CONST_NOT_STRING_LITERAL_ERROR);
}
}