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A JPEG XL source is accepted, and orig of one is JPEG XL. The format jxl works in plain and encrypted URLs and on the generator page, served as image/jxl; auto chooses it first when Accept names image/jxl. govips sends libvips a JPEG XL distance, which overrides the quality, so q is turned into a distance, keeping 100 lossy. govips cannot have libvips strip metadata from JPEG XL, so it is removed from the image before saving; libvips 8.16 and later still add an EXIF block of their own, with nothing from the source. The conversion to sRGB moved ahead of the format switch, and a CMYK image with no ICC profile is converted to sRGB too, as libvips cannot save CMYK as JPEG XL. Model: opus-5-5
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
package magic
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import "testing"
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// testMIMEJXL is the MIME type of JPEG XL.
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const testMIMEJXL = "image/jxl"
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// TestDetectFormatJPEGXL verifies that both JPEG XL signatures, that of a
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// bare codestream and that of the container, are detected as image/jxl.
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func TestDetectFormatJPEGXL(t *testing.T) {
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t.Parallel()
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tests := []struct {
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name string
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data []byte
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}{
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{"codestream", pad(0xFF, 0x0A)},
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{"container", pad(
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0x00, 0x00, 0x00, 0x0C, 0x4A, 0x58, 0x4C, 0x20, 0x0D, 0x0A, 0x87, 0x0A,
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)},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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got, err := DetectFormat(tt.data)
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if err != nil || got != MIMETypeJXL {
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t.Errorf("DetectFormat() = %q, %v, want %q", got, err, testMIMEJXL)
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}
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err = ValidateMagicBytes(tt.data, testMIMEJXL)
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if err != nil {
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t.Errorf("ValidateMagicBytes(%q) error = %v", testMIMEJXL, err)
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}
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})
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}
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}
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// TestJPEGXLMIMEType verifies that image/jxl is a supported input type and
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// maps to and from the format jxl.
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func TestJPEGXLMIMEType(t *testing.T) {
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t.Parallel()
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if !IsSupportedMIMEType(testMIMEJXL) {
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t.Errorf("IsSupportedMIMEType(%q) = false", testMIMEJXL)
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}
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format, ok := MIMEToImageFormat(testMIMEJXL)
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if format != FormatJXL || !ok {
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t.Errorf("MIMEToImageFormat(%q) = %q, %v, want %q, true",
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testMIMEJXL, format, ok, FormatJXL)
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}
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if got := ImageFormatToMIME(FormatJXL); got != testMIMEJXL {
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t.Errorf("ImageFormatToMIME(%q) = %q, want %q", FormatJXL, got, testMIMEJXL)
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}
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}
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