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// Copyright 2006-2015 Google Inc. All Rights Reserved.
//
// 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.devtools.build.lib.syntax;
import static com.google.common.truth.Truth.assertThat;
import static com.google.devtools.build.lib.util.StringUtilities.joinLines;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import com.google.devtools.build.lib.testutil.Scratch;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.PathFragment;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
/**
* A test case for {@link ParserInputSource}.
*/
@RunWith(JUnit4.class)
public class ParserInputSourceTest {
private Scratch scratch = new Scratch();
@Test
public void testCreateFromFile() throws IOException {
String content = joinLines("Line 1", "Line 2", "Line 3", "");
Path file = scratch.file("/tmp/my/file.txt", content.getBytes(StandardCharsets.UTF_8));
ParserInputSource input = ParserInputSource.create(file);
assertEquals(content, new String(input.getContent()));
assertEquals("/tmp/my/file.txt", input.getPath().toString());
}
@Test
public void testCreateFromString() {
String content = "Content provided as a string.";
String pathName = "/the/name/of/the/content.txt";
ParserInputSource input = ParserInputSource.create(content, new PathFragment(pathName));
assertEquals(content, new String(input.getContent()));
assertEquals(pathName, input.getPath().toString());
}
@Test
public void testCreateFromCharArray() {
String content = "Content provided as a string.";
String pathName = "/the/name/of/the/content.txt";
char[] contentChars = content.toCharArray();
ParserInputSource input = ParserInputSource.create(contentChars, new PathFragment(pathName));
assertEquals(content, new String(input.getContent()));
assertEquals(pathName, input.getPath().toString());
}
@Test
public void testIOExceptionIfInputFileDoesNotExistForSingleArgConstructor() {
try {
Path path = scratch.resolve("/does/not/exist");
ParserInputSource.create(path);
fail();
} catch (IOException e) {
String expected = "/does/not/exist (No such file or directory)";
assertThat(e).hasMessage(expected);
}
}
@Test
public void testWillNotTryToReadInputFileIfContentProvidedAsString() {
ParserInputSource.create(
"Content provided as string.", new PathFragment("/will/not/try/to/read"));
}
@Test
public void testWillNotTryToReadInputFileIfContentProvidedAsChars() {
char[] content = "Content provided as char array.".toCharArray();
ParserInputSource.create(content, new PathFragment("/will/not/try/to/read"));
}
}
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