75 lines
2.2 KiB
Java
75 lines
2.2 KiB
Java
|
/*
|
||
|
|
* 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.javascript.rhino.Node;
|
||
|
|
|
||
|
|
import junit.framework.TestCase;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unit test for {@link InlineCostEstimator}.
|
||
|
|
* @author johnlenz@google.com (John Lenz)
|
||
|
|
*/
|
||
|
|
public class InlineCostEstimatorTest extends TestCase {
|
||
|
|
|
||
|
|
static Node parse(String js) {
|
||
|
|
Compiler compiler = new Compiler();
|
||
|
|
Node n = compiler.parseTestCode(js);
|
||
|
|
assertEquals(0, compiler.getErrorCount());
|
||
|
|
return n;
|
||
|
|
}
|
||
|
|
|
||
|
|
static String minimize(String js) {
|
||
|
|
CompilerOptions options = new CompilerOptions();
|
||
|
|
options.setLineLengthThreshold(Integer.MAX_VALUE);
|
||
|
|
return new CodePrinter.Builder(parse(js)).
|
||
|
|
setCompilerOptions(options).
|
||
|
|
build();
|
||
|
|
}
|
||
|
|
|
||
|
|
static long cost(String js) {
|
||
|
|
return InlineCostEstimator.getCost(parse(js));
|
||
|
|
}
|
||
|
|
|
||
|
|
public void testCost() {
|
||
|
|
checkCost("1", "1");
|
||
|
|
checkCost("true", "1");
|
||
|
|
checkCost("false", "1");
|
||
|
|
checkCost("a", "xx");
|
||
|
|
checkCost("a + b", "xx+xx");
|
||
|
|
checkCost("foo()", "xx()");
|
||
|
|
checkCost("foo(a,b)", "xx(xx,xx)");
|
||
|
|
checkCost("10 + foo(a,b)", "0+xx(xx,xx)");
|
||
|
|
checkCost("1 + foo(a,b)", "1+xx(xx,xx)");
|
||
|
|
checkCost("a ? 1 : 0", "xx?1:0");
|
||
|
|
checkCost("a.b", "xx.xx");
|
||
|
|
checkCost("new Obj()", "new xx");
|
||
|
|
checkCost("function a() {return \"monkey\"}",
|
||
|
|
"function xx(){return\"monkey\"}");
|
||
|
|
}
|
||
|
|
|
||
|
|
private void checkCost(String source, String example) {
|
||
|
|
|
||
|
|
// The example string should have been minified already.
|
||
|
|
assertEquals(minimize(example), example);
|
||
|
|
|
||
|
|
// cost estimate should be the same as the length of the example string.
|
||
|
|
assertEquals(example.length(), cost(source));
|
||
|
|
}
|
||
|
|
}
|