use exif-terminator

1 files changed, 188 insertions, 0 deletions

diff --git a/vendor/github.com/dsoprea/go-exif/v3/testing_common.go b/vendor/github.com/dsoprea/go-exif/v3/testing_common.go
new file mode 100644
index 000000000..061276430
--- /dev/null
+++ b/vendor/github.com/dsoprea/go-exif/v3/testing_common.go
@@ -0,0 +1,188 @@
+package exif
+
+import (
+	"path"
+	"reflect"
+	"testing"
+
+	"io/ioutil"
+
+	"github.com/dsoprea/go-logging"
+
+	"github.com/dsoprea/go-exif/v3/common"
+)
+
+var (
+	testExifData []byte
+)
+
+func getExifSimpleTestIb() *IfdBuilder {
+	defer func() {
+		if state := recover(); state != nil {
+			err := log.Wrap(state.(error))
+			log.Panic(err)
+		}
+	}()
+
+	im := exifcommon.NewIfdMapping()
+
+	err := exifcommon.LoadStandardIfds(im)
+	log.PanicIf(err)
+
+	ti := NewTagIndex()
+	ib := NewIfdBuilder(im, ti, exifcommon.IfdStandardIfdIdentity, exifcommon.TestDefaultByteOrder)
+
+	err = ib.AddStandard(0x000b, "asciivalue")
+	log.PanicIf(err)
+
+	err = ib.AddStandard(0x00ff, []uint16{0x1122})
+	log.PanicIf(err)
+
+	err = ib.AddStandard(0x0100, []uint32{0x33445566})
+	log.PanicIf(err)
+
+	err = ib.AddStandard(0x013e, []exifcommon.Rational{{Numerator: 0x11112222, Denominator: 0x33334444}})
+	log.PanicIf(err)
+
+	return ib
+}
+
+func getExifSimpleTestIbBytes() []byte {
+	defer func() {
+		if state := recover(); state != nil {
+			err := log.Wrap(state.(error))
+			log.Panic(err)
+		}
+	}()
+
+	im := exifcommon.NewIfdMapping()
+
+	err := exifcommon.LoadStandardIfds(im)
+	log.PanicIf(err)
+
+	ti := NewTagIndex()
+	ib := NewIfdBuilder(im, ti, exifcommon.IfdStandardIfdIdentity, exifcommon.TestDefaultByteOrder)
+
+	err = ib.AddStandard(0x000b, "asciivalue")
+	log.PanicIf(err)
+
+	err = ib.AddStandard(0x00ff, []uint16{0x1122})
+	log.PanicIf(err)
+
+	err = ib.AddStandard(0x0100, []uint32{0x33445566})
+	log.PanicIf(err)
+
+	err = ib.AddStandard(0x013e, []exifcommon.Rational{{Numerator: 0x11112222, Denominator: 0x33334444}})
+	log.PanicIf(err)
+
+	ibe := NewIfdByteEncoder()
+
+	exifData, err := ibe.EncodeToExif(ib)
+	log.PanicIf(err)
+
+	return exifData
+}
+
+func validateExifSimpleTestIb(exifData []byte, t *testing.T) {
+	defer func() {
+		if state := recover(); state != nil {
+			err := log.Wrap(state.(error))
+			log.Panic(err)
+		}
+	}()
+
+	im := exifcommon.NewIfdMapping()
+
+	err := exifcommon.LoadStandardIfds(im)
+	log.PanicIf(err)
+
+	ti := NewTagIndex()
+
+	eh, index, err := Collect(im, ti, exifData)
+	log.PanicIf(err)
+
+	if eh.ByteOrder != exifcommon.TestDefaultByteOrder {
+		t.Fatalf("EXIF byte-order is not correct: %v", eh.ByteOrder)
+	} else if eh.FirstIfdOffset != ExifDefaultFirstIfdOffset {
+		t.Fatalf("EXIF first IFD-offset not correct: (0x%02x)", eh.FirstIfdOffset)
+	}
+
+	if len(index.Ifds) != 1 {
+		t.Fatalf("There wasn't exactly one IFD decoded: (%d)", len(index.Ifds))
+	}
+
+	ifd := index.RootIfd
+
+	if ifd.ByteOrder() != exifcommon.TestDefaultByteOrder {
+		t.Fatalf("IFD byte-order not correct.")
+	} else if ifd.ifdIdentity.UnindexedString() != exifcommon.IfdStandardIfdIdentity.UnindexedString() {
+		t.Fatalf("IFD name not correct.")
+	} else if ifd.ifdIdentity.Index() != 0 {
+		t.Fatalf("IFD index not zero: (%d)", ifd.ifdIdentity.Index())
+	} else if ifd.Offset() != uint32(0x0008) {
+		t.Fatalf("IFD offset not correct.")
+	} else if len(ifd.Entries()) != 4 {
+		t.Fatalf("IFD number of entries not correct: (%d)", len(ifd.Entries()))
+	} else if ifd.nextIfdOffset != uint32(0) {
+		t.Fatalf("Next-IFD offset is non-zero.")
+	} else if ifd.nextIfd != nil {
+		t.Fatalf("Next-IFD pointer is non-nil.")
+	}
+
+	// Verify the values by using the actual, original types (this is awesome).
+
+	expected := []struct {
+		tagId uint16
+		value interface{}
+	}{
+		{tagId: 0x000b, value: "asciivalue"},
+		{tagId: 0x00ff, value: []uint16{0x1122}},
+		{tagId: 0x0100, value: []uint32{0x33445566}},
+		{tagId: 0x013e, value: []exifcommon.Rational{{Numerator: 0x11112222, Denominator: 0x33334444}}},
+	}
+
+	for i, ite := range ifd.Entries() {
+		if ite.TagId() != expected[i].tagId {
+			t.Fatalf("Tag-ID for entry (%d) not correct: (0x%02x) != (0x%02x)", i, ite.TagId(), expected[i].tagId)
+		}
+
+		value, err := ite.Value()
+		log.PanicIf(err)
+
+		if reflect.DeepEqual(value, expected[i].value) != true {
+			t.Fatalf("Value for entry (%d) not correct: [%v] != [%v]", i, value, expected[i].value)
+		}
+	}
+}
+
+func getTestImageFilepath() string {
+	assetsPath := exifcommon.GetTestAssetsPath()
+	testImageFilepath := path.Join(assetsPath, "NDM_8901.jpg")
+	return testImageFilepath
+}
+
+func getTestExifData() []byte {
+	if testExifData == nil {
+		assetsPath := exifcommon.GetTestAssetsPath()
+		filepath := path.Join(assetsPath, "NDM_8901.jpg.exif")
+
+		var err error
+
+		testExifData, err = ioutil.ReadFile(filepath)
+		log.PanicIf(err)
+	}
+
+	return testExifData
+}
+
+func getTestGpsImageFilepath() string {
+	assetsPath := exifcommon.GetTestAssetsPath()
+	testGpsImageFilepath := path.Join(assetsPath, "gps.jpg")
+	return testGpsImageFilepath
+}
+
+func getTestGeotiffFilepath() string {
+	assetsPath := exifcommon.GetTestAssetsPath()
+	testGeotiffFilepath := path.Join(assetsPath, "geotiff_example.tif")
+	return testGeotiffFilepath
+}