package imageprocessor

import (
	"bytes"
	"errors"
	"testing"

	"github.com/davidbyttow/govips/v2/vips"
)

// TestImageProcessor_OrigOfUnnamedFormatRefused verifies that orig of an
// input in a format the processor decodes but cannot name, here TIFF, is
// an error, and not the image saved as JPEG.
func TestImageProcessor_OrigOfUnnamedFormatRefused(t *testing.T) {
	t.Parallel()

	img, err := vips.NewImageFromBuffer(createTestPNG(t, 20, 20))
	if err != nil {
		t.Fatalf("failed to decode test PNG: %v", err)
	}

	t.Cleanup(img.Close)

	tiff, _, err := img.ExportTiff(vips.NewTiffExportParams())
	if err != nil {
		t.Fatalf("failed to save test TIFF: %v", err)
	}

	result, err := New(Params{}).Process(
		t.Context(), bytes.NewReader(tiff), &Request{Format: FormatOriginal},
	)
	if result != nil {
		t.Logf("Process() returned %s", result.ContentType)
	}

	if !errors.Is(err, ErrUnsupportedInputFormat) {
		t.Errorf("Process() error = %v, want %v", err, ErrUnsupportedInputFormat)
	}
}