michael@0: /*
michael@0:  * Tests for imgITools
michael@0:  */
michael@0: 
michael@0: const Ci = Components.interfaces;
michael@0: const Cc = Components.classes;
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * dumpToFile()
michael@0:  *
michael@0:  * For test development, dumps the specified array to a file.
michael@0:  * Call |dumpToFile(outData);| in a test to file to a file.
michael@0:  */
michael@0: function dumpToFile(aData) {
michael@0:     var outputFile = do_get_tempdir();
michael@0:     outputFile.append("testdump.png");
michael@0: 
michael@0:     var outputStream = Cc["@mozilla.org/network/file-output-stream;1"].
michael@0:                        createInstance(Ci.nsIFileOutputStream);
michael@0:     // WR_ONLY|CREAT|TRUNC
michael@0:     outputStream.init(outputFile, 0x02 | 0x08 | 0x20, 0644, null);
michael@0: 
michael@0:     var bos = Cc["@mozilla.org/binaryoutputstream;1"].
michael@0:               createInstance(Ci.nsIBinaryOutputStream);
michael@0:     bos.setOutputStream(outputStream);
michael@0: 
michael@0:     bos.writeByteArray(aData, aData.length);
michael@0: 
michael@0:     outputStream.close();
michael@0: }
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * getFileInputStream()
michael@0:  *
michael@0:  * Returns an input stream for the specified file.
michael@0:  */
michael@0: function getFileInputStream(aFile) {
michael@0:     var inputStream = Cc["@mozilla.org/network/file-input-stream;1"].
michael@0:                       createInstance(Ci.nsIFileInputStream);
michael@0:     // init the stream as RD_ONLY, -1 == default permissions.
michael@0:     inputStream.init(aFile, 0x01, -1, null);
michael@0: 
michael@0:     // Blah. The image decoders use ReadSegments, which isn't implemented on
michael@0:     // file input streams. Use a buffered stream to make it work.
michael@0:     var bis = Cc["@mozilla.org/network/buffered-input-stream;1"].
michael@0:               createInstance(Ci.nsIBufferedInputStream);
michael@0:     bis.init(inputStream, 1024);
michael@0: 
michael@0:     return bis;
michael@0: }
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * streamToArray()
michael@0:  *
michael@0:  * Consumes an input stream, and returns its bytes as an array.
michael@0:  */
michael@0: function streamToArray(aStream) {
michael@0:     var size = aStream.available();
michael@0: 
michael@0:     // use a binary input stream to grab the bytes.
michael@0:     var bis = Cc["@mozilla.org/binaryinputstream;1"].
michael@0:               createInstance(Ci.nsIBinaryInputStream);
michael@0:     bis.setInputStream(aStream);
michael@0: 
michael@0:     var bytes = bis.readByteArray(size);
michael@0:     if (size != bytes.length)
michael@0:         throw "Didn't read expected number of bytes";
michael@0: 
michael@0:     return bytes;
michael@0: }
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * compareArrays
michael@0:  *
michael@0:  * Compares two arrays, and throws if there's a difference.
michael@0:  */
michael@0: function compareArrays(aArray1, aArray2) {
michael@0:     do_check_eq(aArray1.length, aArray2.length);
michael@0: 
michael@0:     for (var i = 0; i < aArray1.length; i++)
michael@0:         if (aArray1[i] != aArray2[i])
michael@0:             throw "arrays differ at index " + i;
michael@0: }
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * checkExpectedError
michael@0:  *
michael@0:  * Checks to see if a thrown error was expected or not, and if it
michael@0:  * matches the expected value.
michael@0:  */
michael@0: function checkExpectedError (aExpectedError, aActualError) {
michael@0:   if (aExpectedError) {
michael@0:       if (!aActualError)
michael@0:           throw "Didn't throw as expected (" + aExpectedError + ")";
michael@0: 
michael@0:       if (!aExpectedError.test(aActualError))
michael@0:           throw "Threw (" + aActualError + "), not (" + aExpectedError;
michael@0: 
michael@0:       // We got the expected error, so make a note in the test log.
michael@0:       dump("...that error was expected.\n\n");
michael@0:   } else if (aActualError) {
michael@0:       throw "Threw unexpected error: " + aActualError;
michael@0:   }
michael@0: }
michael@0: 
michael@0: 
michael@0: function run_test() {
michael@0: 
michael@0: try {
michael@0: 
michael@0: 
michael@0: /* ========== 0 ========== */
michael@0: var testnum = 0;
michael@0: var testdesc = "imgITools setup";
michael@0: var err = null;
michael@0: 
michael@0: var imgTools = Cc["@mozilla.org/image/tools;1"].
michael@0:                getService(Ci.imgITools);
michael@0: 
michael@0: if (!imgTools)
michael@0:     throw "Couldn't get imgITools service"
michael@0: 
michael@0: // Ugh, this is an ugly hack. The pixel values we get in Windows are sometimes
michael@0: // +/- 1 value compared to other platforms, so we need to compare against a
michael@0: // different set of reference images. nsIXULRuntime.OS doesn't seem to be
michael@0: // available in xpcshell, so we'll use this as a kludgy way to figure out if
michael@0: // we're running on Windows.
michael@0: var isWindows = ("@mozilla.org/windows-registry-key;1" in Cc);
michael@0: 
michael@0: 
michael@0: /* ========== 1 ========== */
michael@0: testnum++;
michael@0: testdesc = "test decoding a PNG";
michael@0: 
michael@0: // 64x64 png, 8415 bytes.
michael@0: var imgName = "image1.png";
michael@0: var inMimeType = "image/png";
michael@0: var imgFile = do_get_file(imgName);
michael@0: 
michael@0: var istream = getFileInputStream(imgFile);
michael@0: do_check_eq(istream.available(), 8415);
michael@0: 
michael@0: // Use decodeImageData for this test even though it's deprecated to ensure that
michael@0: // it correctly forwards to decodeImage and continues to work.
michael@0: var outParam = { value: null };
michael@0: imgTools.decodeImageData(istream, inMimeType, outParam);
michael@0: var container = outParam.value;
michael@0: 
michael@0: // It's not easy to look at the pixel values from JS, so just
michael@0: // check the container's size.
michael@0: do_check_eq(container.width,  64);
michael@0: do_check_eq(container.height, 64);
michael@0: 
michael@0: 
michael@0: /* ========== 2 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding a scaled JPEG";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeScaledImage(container, "image/jpeg", 16, 16);
michael@0: 
michael@0: var encodedBytes = streamToArray(istream);
michael@0: // Get bytes for exected result
michael@0: var refName = "image1png16x16.jpg";
michael@0: var refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 1078);
michael@0: var referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 3 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding an unscaled JPEG";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeImage(container, "image/jpeg");
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image1png64x64.jpg";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 4503);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 4 ========== */
michael@0: testnum++;
michael@0: testdesc = "test decoding a JPEG";
michael@0: 
michael@0: // 32x32 jpeg, 3494 bytes.
michael@0: imgName = "image2.jpg";
michael@0: inMimeType = "image/jpeg";
michael@0: imgFile = do_get_file(imgName);
michael@0: 
michael@0: istream = getFileInputStream(imgFile);
michael@0: do_check_eq(istream.available(), 3494);
michael@0: 
michael@0: container = imgTools.decodeImage(istream, inMimeType);
michael@0: 
michael@0: // It's not easy to look at the pixel values from JS, so just
michael@0: // check the container's size.
michael@0: do_check_eq(container.width,  32);
michael@0: do_check_eq(container.height, 32);
michael@0: 
michael@0: 
michael@0: /* ========== 5 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding a scaled PNG";
michael@0: 
michael@0: if (!isWindows) {
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeScaledImage(container, "image/png", 16, 16);
michael@0: 
michael@0: encodedBytes = streamToArray(istream);
michael@0: // Get bytes for exected result
michael@0: refName = isWindows ? "image2jpg16x16-win.png" : "image2jpg16x16.png";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 948);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: }
michael@0: 
michael@0: 
michael@0: /* ========== 6 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding an unscaled PNG";
michael@0: 
michael@0: if (!isWindows) {
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeImage(container, "image/png");
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = isWindows ? "image2jpg32x32-win.png" : "image2jpg32x32.png";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 3105);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: }
michael@0: 
michael@0: 
michael@0: /* ========== 7 ========== */
michael@0: testnum++;
michael@0: testdesc = "test decoding a ICO";
michael@0: 
michael@0: // 16x16 ico, 1406 bytes.
michael@0: imgName = "image3.ico";
michael@0: inMimeType = "image/x-icon";
michael@0: imgFile = do_get_file(imgName);
michael@0: 
michael@0: istream = getFileInputStream(imgFile);
michael@0: do_check_eq(istream.available(), 1406);
michael@0: 
michael@0: container = imgTools.decodeImage(istream, inMimeType);
michael@0: 
michael@0: // It's not easy to look at the pixel values from JS, so just
michael@0: // check the container's size.
michael@0: do_check_eq(container.width,  16);
michael@0: do_check_eq(container.height, 16);
michael@0: 
michael@0: 
michael@0: /* ========== 8 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding a scaled PNG"; // note that we're scaling UP
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeScaledImage(container, "image/png", 32, 32);
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image3ico32x32.png";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 2285);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 9 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding an unscaled PNG";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeImage(container, "image/png");
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image3ico16x16.png";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 330);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 10 ========== */
michael@0: testnum++;
michael@0: testdesc = "test decoding a GIF";
michael@0: 
michael@0: // 32x32 gif, 1809 bytes.
michael@0: imgName = "image4.gif";
michael@0: inMimeType = "image/gif";
michael@0: imgFile = do_get_file(imgName);
michael@0: 
michael@0: istream = getFileInputStream(imgFile);
michael@0: do_check_eq(istream.available(), 1809);
michael@0: 
michael@0: container = imgTools.decodeImage(istream, inMimeType);
michael@0: 
michael@0: // It's not easy to look at the pixel values from JS, so just
michael@0: // check the container's size.
michael@0: do_check_eq(container.width, 32);
michael@0: do_check_eq(container.height, 32);
michael@0: 
michael@0: /* ========== 11 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding an unscaled ICO with format options " +
michael@0:            "(format=bmp;bpp=32)";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeImage(container,
michael@0:                                "image/vnd.microsoft.icon",
michael@0:                                "format=bmp;bpp=32");
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image4gif32x32bmp32bpp.ico";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 4286);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: /* ========== 12 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding a scaled ICO with format options " +
michael@0:            "(format=bmp;bpp=32)";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeScaledImage(container,
michael@0:                                      "image/vnd.microsoft.icon",
michael@0:                                      16,
michael@0:                                      16,
michael@0:                                      "format=bmp;bpp=32");
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image4gif16x16bmp32bpp.ico";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 1150);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: /* ========== 13 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding an unscaled ICO with format options " +
michael@0:            "(format=bmp;bpp=24)";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeImage(container,
michael@0:                                "image/vnd.microsoft.icon",
michael@0:                                "format=bmp;bpp=24");
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image4gif32x32bmp24bpp.ico";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 3262);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: /* ========== 14 ========== */
michael@0: testnum++;
michael@0: testdesc = "test encoding a scaled ICO with format options " +
michael@0:            "(format=bmp;bpp=24)";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeScaledImage(container,
michael@0:                                      "image/vnd.microsoft.icon",
michael@0:                                      16,
michael@0:                                      16,
michael@0:                                      "format=bmp;bpp=24");
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image4gif16x16bmp24bpp.ico";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 894);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 15 ========== */
michael@0: testnum++;
michael@0: testdesc = "test cropping a JPG";
michael@0: 
michael@0: // 32x32 jpeg, 3494 bytes.
michael@0: imgName = "image2.jpg";
michael@0: inMimeType = "image/jpeg";
michael@0: imgFile = do_get_file(imgName);
michael@0: 
michael@0: istream = getFileInputStream(imgFile);
michael@0: do_check_eq(istream.available(), 3494);
michael@0: 
michael@0: container = imgTools.decodeImage(istream, inMimeType);
michael@0: 
michael@0: // It's not easy to look at the pixel values from JS, so just
michael@0: // check the container's size.
michael@0: do_check_eq(container.width,  32);
michael@0: do_check_eq(container.height, 32);
michael@0: 
michael@0: // encode a cropped image
michael@0: istream = imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, 16, 16);
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image2jpg16x16cropped.jpg";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 879);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 16 ========== */
michael@0: testnum++;
michael@0: testdesc = "test cropping a JPG with an offset";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeCroppedImage(container, "image/jpeg", 16, 16, 16, 16);
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image2jpg16x16cropped2.jpg";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 878);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 17 ========== */
michael@0: testnum++;
michael@0: testdesc = "test cropping a JPG without a given height";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, 16, 0);
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image2jpg16x32cropped3.jpg";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 1127);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 18 ========== */
michael@0: testnum++;
michael@0: testdesc = "test cropping a JPG without a given width";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, 0, 16);
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image2jpg32x16cropped4.jpg";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 1135);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 19 ========== */
michael@0: testnum++;
michael@0: testdesc = "test cropping a JPG without a given width and height";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, 0, 0);
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image2jpg32x32.jpg";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 1634);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 20 ========== */
michael@0: testnum++;
michael@0: testdesc = "test scaling a JPG without a given width";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeScaledImage(container, "image/jpeg", 0, 16);
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image2jpg32x16scaled.jpg";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 1227);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 21 ========== */
michael@0: testnum++;
michael@0: testdesc = "test scaling a JPG without a given height";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeScaledImage(container, "image/jpeg", 16, 0);
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image2jpg16x32scaled.jpg";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 1219);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 22 ========== */
michael@0: testnum++;
michael@0: testdesc = "test scaling a JPG without a given width and height";
michael@0: 
michael@0: // we'll reuse the container from the previous test
michael@0: istream = imgTools.encodeScaledImage(container, "image/jpeg", 0, 0);
michael@0: encodedBytes = streamToArray(istream);
michael@0: 
michael@0: // Get bytes for exected result
michael@0: refName = "image2jpg32x32.jpg";
michael@0: refFile = do_get_file(refName);
michael@0: istream = getFileInputStream(refFile);
michael@0: do_check_eq(istream.available(), 1634);
michael@0: referenceBytes = streamToArray(istream);
michael@0: 
michael@0: // compare the encoder's output to the reference file.
michael@0: compareArrays(encodedBytes, referenceBytes);
michael@0: 
michael@0: 
michael@0: /* ========== 22 ========== */
michael@0: testnum++;
michael@0: testdesc = "test invalid arguments for cropping";
michael@0: 
michael@0: var numErrors = 0;
michael@0: 
michael@0: try {
michael@0:   // width/height can't be negative
michael@0:   imgTools.encodeScaledImage(container, "image/jpeg", -1, -1);
michael@0: } catch (e) { numErrors++; }
michael@0: 
michael@0: try {
michael@0:   // offsets can't be negative
michael@0:   imgTools.encodeCroppedImage(container, "image/jpeg", -1, -1, 16, 16);
michael@0: } catch (e) { numErrors++; }
michael@0: 
michael@0: try {
michael@0:   // width/height can't be negative
michael@0:   imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, -1, -1);
michael@0: } catch (e) { numErrors++; }
michael@0: 
michael@0: try {
michael@0:   // out of bounds
michael@0:   imgTools.encodeCroppedImage(container, "image/jpeg", 17, 17, 16, 16);
michael@0: } catch (e) { numErrors++; }
michael@0: 
michael@0: try {
michael@0:   // out of bounds
michael@0:   imgTools.encodeCroppedImage(container, "image/jpeg", 0, 0, 33, 33);
michael@0: } catch (e) { numErrors++; }
michael@0: 
michael@0: try {
michael@0:   // out of bounds
michael@0:   imgTools.encodeCroppedImage(container, "image/jpeg", 1, 1, 0, 0);
michael@0: } catch (e) { numErrors++; }
michael@0: 
michael@0: do_check_eq(numErrors, 6);
michael@0: 
michael@0: 
michael@0: /* ========== bug 363986 ========== */
michael@0: testnum = 363986;
michael@0: testdesc = "test PNG and JPEG encoders' Read/ReadSegments methods";
michael@0: 
michael@0: var testData = 
michael@0:     [{preImage: "image3.ico",
michael@0:       preImageMimeType: "image/x-icon",
michael@0:       refImage: "image3ico16x16.png",
michael@0:       refImageMimeType: "image/png"},
michael@0:      {preImage: "image1.png",
michael@0:       preImageMimeType: "image/png",
michael@0:       refImage: "image1png64x64.jpg",
michael@0:       refImageMimeType: "image/jpeg"}];
michael@0: 
michael@0: for(var i=0; i<testData.length; ++i) {
michael@0:     var dict = testData[i];
michael@0: 
michael@0:     var imgFile = do_get_file(dict["refImage"]);
michael@0:     var istream = getFileInputStream(imgFile);
michael@0:     var refBytes = streamToArray(istream);
michael@0: 
michael@0:     imgFile = do_get_file(dict["preImage"]);
michael@0:     istream = getFileInputStream(imgFile);
michael@0: 
michael@0:     var container = imgTools.decodeImage(istream, dict["preImageMimeType"]);
michael@0: 
michael@0:     istream = imgTools.encodeImage(container, dict["refImageMimeType"]);
michael@0: 
michael@0:     var sstream = Cc["@mozilla.org/storagestream;1"].
michael@0: 	          createInstance(Ci.nsIStorageStream);
michael@0:     sstream.init(4096, 4294967295, null);
michael@0:     var ostream = sstream.getOutputStream(0);
michael@0:     var bostream = Cc["@mozilla.org/network/buffered-output-stream;1"].
michael@0: 	           createInstance(Ci.nsIBufferedOutputStream);
michael@0: 
michael@0:     //use a tiny buffer to make sure the image data doesn't fully fit in it
michael@0:     bostream.init(ostream, 8);
michael@0: 
michael@0:     bostream.writeFrom(istream, istream.available());
michael@0:     bostream.flush(); bostream.close();
michael@0: 
michael@0:     var encBytes = streamToArray(sstream.newInputStream(0));
michael@0: 
michael@0:     compareArrays(refBytes, encBytes);
michael@0: }
michael@0: 
michael@0: 
michael@0: /* ========== bug 413512  ========== */
michael@0: testnum = 413512;
michael@0: testdesc = "test decoding bad favicon (bug 413512)";
michael@0: 
michael@0: imgName = "bug413512.ico";
michael@0: inMimeType = "image/x-icon";
michael@0: imgFile = do_get_file(imgName);
michael@0: 
michael@0: istream = getFileInputStream(imgFile);
michael@0: do_check_eq(istream.available(), 17759);
michael@0: var errsrc = "none";
michael@0: 
michael@0: try {
michael@0:   container = imgTools.decodeImage(istream, inMimeType);
michael@0: 
michael@0:   // We should never hit this - decodeImage throws an assertion because the
michael@0:   // image decoded doesn't have enough frames.
michael@0:   try {
michael@0:       istream = imgTools.encodeImage(container, "image/png");
michael@0:   } catch (e) {
michael@0:       err = e;
michael@0:       errsrc = "encode";
michael@0:   }
michael@0: } catch (e) {
michael@0:   err = e;
michael@0:   errsrc = "decode";
michael@0: }
michael@0: 
michael@0: do_check_eq(errsrc, "decode");
michael@0: checkExpectedError(/NS_ERROR_FAILURE/, err);
michael@0: 
michael@0: 
michael@0: /* ========== bug 815359  ========== */
michael@0: testnum = 815359;
michael@0: testdesc = "test correct ico hotspots (bug 815359)";
michael@0: 
michael@0: imgName = "bug815359.ico";
michael@0: inMimeType = "image/x-icon";
michael@0: imgFile = do_get_file(imgName);
michael@0: 
michael@0: istream = getFileInputStream(imgFile);
michael@0: do_check_eq(istream.available(), 4286);
michael@0: 
michael@0: container = imgTools.decodeImage(istream, inMimeType);
michael@0: 
michael@0: var props = container.QueryInterface(Ci.nsIProperties);
michael@0: 
michael@0: do_check_eq(props.get("hotspotX", Ci.nsISupportsPRUint32).data, 10);
michael@0: do_check_eq(props.get("hotspotY", Ci.nsISupportsPRUint32).data, 9);
michael@0: 
michael@0: 
michael@0: /* ========== end ========== */
michael@0: 
michael@0: } catch (e) {
michael@0:     throw "FAILED in test #" + testnum + " -- " + testdesc + ": " + e;
michael@0: }
michael@0: };