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magic.DetectFormat returns an imagerequest.Format. ValidateMagicBytes returns the format it checked against the upstream Content-Type. The cache reads a cached source's format from its file's first bytes, as it reads a variant's. The proxy hands the format to Process. Process refuses a format that is not a source format, and input libvips would load with another loader, such as an SVG passing as AVIF. Format.MIMEType declares each MIME string once, and the fetcher, the cache's variant read and the Accept matching use it. magic.MIMEType, magic.ImageFormat, MIMEToImageFormat, magic's SVG detection, detectFormat, formatFromString, FormatToMIME and Result.InputFormat are gone. Model: opus-5-5
76 lines
2.4 KiB
Go
76 lines
2.4 KiB
Go
package imageprocessor
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import (
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"bytes"
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"errors"
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"io"
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"testing"
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"sneak.berlin/go/pixa/internal/imagerequest"
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)
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// TestImageProcessor_LoadsEachSourceFormat verifies that an image in each of
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// the six source formats, saved by the processor itself, is loaded and saved
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// again in its own format (orig).
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func TestImageProcessor_LoadsEachSourceFormat(t *testing.T) {
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t.Parallel()
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proc := New(Params{MaxInputBytes: 50 << 20, MaxConcurrentProcessing: 1})
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for _, format := range []imagerequest.Format{
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imagerequest.FormatJPEG, imagerequest.FormatPNG, imagerequest.FormatGIF,
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imagerequest.FormatWebP, imagerequest.FormatAVIF, imagerequest.FormatJXL,
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} {
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saved, err := proc.Process(t.Context(),
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bytes.NewReader(createTestPNG(t, 20, 20)), imagerequest.FormatPNG,
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&imagerequest.Transform{Format: format})
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if err != nil {
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t.Fatalf("saving the test image as %s: %v", format, err)
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}
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source, err := io.ReadAll(saved.Content)
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if err != nil {
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t.Fatalf("reading the %s image: %v", format, err)
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}
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result, err := proc.Process(t.Context(), bytes.NewReader(source), format,
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&imagerequest.Transform{Format: imagerequest.FormatOriginal})
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if err != nil {
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t.Errorf("orig of the %s image: %v", format, err)
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continue
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}
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t.Logf("orig of the %s image: %s", format, result.ContentType)
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if result.ContentType != format.MIMEType() {
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t.Errorf("orig of the %s image is %s, want %s",
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format, result.ContentType, format.MIMEType())
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}
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}
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}
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// TestImageProcessor_NotASourceFormatRefused verifies that a source format
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// other than the six, such as orig, auto or none, is refused with
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// ErrUnsupportedInputFormat. The input is text, which libvips reads as no
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// format.
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func TestImageProcessor_NotASourceFormatRefused(t *testing.T) {
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t.Parallel()
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proc := New(Params{MaxInputBytes: 50 << 20, MaxConcurrentProcessing: 1})
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for _, sourceFormat := range []imagerequest.Format{
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imagerequest.FormatOriginal, imagerequest.FormatAuto, "",
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} {
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result, err := proc.Process(t.Context(),
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bytes.NewReader([]byte("this is text, not an image")), sourceFormat,
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&imagerequest.Transform{Format: imagerequest.FormatJPEG})
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t.Logf("source format %q: error = %v", sourceFormat, err)
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if result != nil || !errors.Is(err, ErrUnsupportedInputFormat) {
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t.Errorf("Process() with source format %q = %v, error %v; want %v",
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sourceFormat, result, err, ErrUnsupportedInputFormat)
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}
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}
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}
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