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/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0
*/
function BinaryComparer(file, callback) {
var fstream = Cc["@mozilla.org/network/file-input-stream;1"].
createInstance(Ci.nsIFileInputStream);
fstream.init(file, -1, 0, 0);
this.length = file.fileSize;
this.fileStream = Cc["@mozilla.org/binaryinputstream;1"].
createInstance(Ci.nsIBinaryInputStream);
this.fileStream.setInputStream(fstream);
this.offset = 0;
this.callback = callback;
}
BinaryComparer.prototype = {
fileStream: null,
offset: null,
length: null,
callback: null,
onStartRequest: function(aRequest, aContext) {
},
onStopRequest: function(aRequest, aContext, aStatusCode) {
this.fileStream.close();
do_check_eq(aStatusCode, Components.results.NS_OK);
do_check_eq(this.offset, this.length);
this.callback();
},
onDataAvailable: function(aRequest, aContext, aInputStream, aOffset, aCount) {
var stream = Cc["@mozilla.org/binaryinputstream;1"].
createInstance(Ci.nsIBinaryInputStream);
stream.setInputStream(aInputStream);
var source, actual;
for (var i = 0; i < aCount; i++) {
try {
source = this.fileStream.read8();
}
catch (e) {
do_throw("Unable to read from file at offset " + this.offset + " " + e);
}
try {
actual = stream.read8();
}
catch (e) {
do_throw("Unable to read from converted stream at offset " + this.offset + " " + e);
}
// The byte at offset 9 is the OS byte (see RFC 1952, section 2.3), which
// can legitimately differ when the source is compressed on different
// operating systems. The actual .gz for this test was created on a Unix
// system, but we want the test to work correctly everywhere. So ignore
// the byte at offset 9.
if (this.offset == 9)
;
else if (source != actual)
do_throw("Invalid value " + actual + " at offset " + this.offset + ", should have been " + source);
this.offset++;
}
}
}
function comparer_callback()
{
do_test_finished();
}
function run_test()
{
var source = do_get_file(DATA_DIR + "test_bug717061.html");
var comparer = new BinaryComparer(do_get_file(DATA_DIR + "test_bug717061.gz"),
comparer_callback);
// Prepare the stream converter
var scs = Cc["@mozilla.org/streamConverters;1"].
getService(Ci.nsIStreamConverterService);
var converter = scs.asyncConvertData("uncompressed", "gzip", comparer, null);
// Open the expected output file
var fstream = Cc["@mozilla.org/network/file-input-stream;1"].
createInstance(Ci.nsIFileInputStream);
fstream.init(source, -1, 0, 0);
// Set up a pump to push data from the file to the stream converter
var pump = Cc["@mozilla.org/network/input-stream-pump;1"].
createInstance(Ci.nsIInputStreamPump);
pump.init(fstream, -1, -1, 0, 0, true);
pump.asyncRead(converter, null);
do_test_pending();
}
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