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/*
* Copyright 2007 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 static com.google.javascript.jscomp.LightweightMessageFormatter.LineNumberingFormatter;
import com.google.javascript.rhino.Node;
import junit.framework.TestCase;
public class LightweightMessageFormatterTest extends TestCase {
private static final DiagnosticType FOO_TYPE =
DiagnosticType.error("TEST_FOO", "error description here");
public void testNull() throws Exception {
assertNull(format(null));
}
public void testOneLineRegion() throws Exception {
assertEquals(" 5| hello world", format(region(5, 5, "hello world")));
}
public void testTwoLineRegion() throws Exception {
assertEquals(" 5| hello world\n" +
" 6| foo bar", format(region(5, 6, "hello world\nfoo bar")));
}
public void testThreeLineRegionAcrossNumberRange() throws Exception {
String region = format(region(9, 11, "hello world\nfoo bar\nanother one"));
assertEquals(" 9| hello world\n" +
" 10| foo bar\n" +
" 11| another one", region);
}
public void testThreeLineRegionEmptyLine() throws Exception {
String region = format(region(7, 9, "hello world\n\nanother one"));
assertEquals(" 7| hello world\n" +
" 8| \n" +
" 9| another one", region);
}
public void testOnlyOneEmptyLine() throws Exception {
assertNull(format(region(7, 7, "")));
}
public void testTwoEmptyLines() throws Exception {
assertEquals(" 7| ", format(region(7, 8, "\n")));
}
public void testThreeLineRemoveLastEmptyLine() throws Exception {
String region = format(region(7, 9, "hello world\nfoobar\n"));
assertEquals(" 7| hello world\n" +
" 8| foobar", region);
}
public void testFormatErrorSpaces() throws Exception {
JSError error = JSError.make("javascript/complex.js",
Node.newString("foobar", 5, 8), FOO_TYPE);
LightweightMessageFormatter formatter = formatter(" if (foobar) {");
assertEquals("javascript/complex.js:5: ERROR - error description here\n" +
" if (foobar) {\n" +
" ^\n", formatter.formatError(error));
}
public void testFormatErrorTabs() throws Exception {
JSError error = JSError.make("javascript/complex.js",
Node.newString("foobar", 5, 6), FOO_TYPE);
LightweightMessageFormatter formatter = formatter("\t\tif (foobar) {");
assertEquals("javascript/complex.js:5: ERROR - error description here\n" +
"\t\tif (foobar) {\n" +
"\t\t ^\n", formatter.formatError(error));
}
public void testFormatErrorSpaceEndOfLine1() throws Exception {
JSError error = JSError.make("javascript/complex.js",
1, 10, FOO_TYPE);
LightweightMessageFormatter formatter = formatter("assert (1;");
assertEquals("javascript/complex.js:1: ERROR - error description here\n" +
"assert (1;\n" +
" ^\n", formatter.formatError(error));
}
public void testFormatErrorSpaceEndOfLine2() throws Exception {
JSError error = JSError.make("javascript/complex.js",
6, 7, FOO_TYPE);
LightweightMessageFormatter formatter = formatter("if (foo");
assertEquals("javascript/complex.js:6: ERROR - error description here\n" +
"if (foo\n" +
" ^\n", formatter.formatError(error));
}
private LightweightMessageFormatter formatter(String string) {
return new LightweightMessageFormatter(source(string));
}
private SourceExcerptProvider source(final String source) {
return new SourceExcerptProvider() {
@Override
public String getSourceLine(String sourceName, int lineNumber) {
return source;
}
@Override
public Region getSourceRegion(String sourceName, int lineNumber) {
throw new UnsupportedOperationException();
}
};
}
private String format(Region region) {
return new LineNumberingFormatter().formatRegion(region);
}
private Region region(final int startLine, final int endLine,
final String source) {
return new SimpleRegion(startLine, endLine, source);
}
}
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