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/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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 libcore.io;
import junit.framework.TestCase;
import java.io.ByteArrayInputStream;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStream;
import java.nio.charset.Charsets;
public class StrictLineReaderTest extends TestCase {
public void testLineReaderConsistencyWithReadAsciiLine () {
try {
// Testing with LineReader buffer capacity 32 to check some corner cases.
StrictLineReader lineReader = new StrictLineReader(createTestInputStream(), 32,
Charsets.US_ASCII);
InputStream refStream = createTestInputStream();
while (true) {
try {
String refLine = Streams.readAsciiLine(refStream);
try {
String line = lineReader.readLine();
if (!refLine.equals(line)) {
fail("line (\""+line+"\") differs from expected (\""+refLine+"\").");
}
} catch (EOFException eof) {
fail("line reader threw EOFException too early.");
}
} catch (EOFException refEof) {
try {
lineReader.readLine();
fail("line reader didn't throw the expected EOFException.");
} catch (EOFException eof) {
// OK
break;
}
}
}
refStream.close();
lineReader.close();
} catch (IOException ioe) {
fail("Unexpected IOException " + ioe.toString());
}
}
private InputStream createTestInputStream() {
return new ByteArrayInputStream((
/* each source lines below should represent 32 bytes, until the next comment */
"12 byte line\n18 byte line......\n" +
"pad\nline spanning two 32-byte bu" +
"ffers\npad......................\n" +
"pad\nline spanning three 32-byte " +
"buffers and ending with LF at th" +
"e end of a 32 byte buffer......\n" +
"pad\nLine ending with CRLF split" +
" at the end of a 32-byte buffer\r" +
"\npad...........................\n" +
/* end of 32-byte lines */
"line ending with CRLF\r\n" +
"this is a long line with embedded CR \r ending with CRLF and having more than " +
"32 characters\r\n" +
"unterminated line - should be dropped"
).getBytes());
}
}
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