exiv2 -pa output
NewSubfileType 	 Long 	 1 	 "Primary image"
ImageWidth 	 Short 	 1 	 "9"
ImageLength 	 Short 	 1 	 "9"
BitsPerSample 	 Short 	 3 	 "8 8 8"
Compression 	 Short 	 1 	 "Uncompressed"
PhotometricInterpretation 	 Short 	 1 	 "RGB"
DocumentName 	 Ascii 	 24 	 "/home/ahuggel/mini9.tif"
ImageDescription 	 Ascii 	 18 	 "Created with GIMP"
StripOffsets 	 Long 	 1 	 "8"
Orientation 	 Short 	 1 	 "top, left"
SamplesPerPixel 	 Short 	 1 	 "3"
RowsPerStrip 	 Short 	 1 	 "64"
StripByteCounts 	 Long 	 1 	 "243"
XResolution 	 Rational 	 1 	 "72"
YResolution 	 Rational 	 1 	 "72"
PlanarConfiguration 	 Short 	 1 	 "1"
ResolutionUnit 	 Short 	 1 	 "inch"

exiv2 -pS output
NewSubfileType 	 LONG 	 1 	 "0"
ImageWidth 	 SHORT 	 1 	 "9"
ImageLength 	 SHORT 	 1 	 "9"
BitsPerSample 	 SHORT 	 3 	 "8 8 8"
Compression 	 SHORT 	 1 	 "1"
PhotometricInterpretation 	 SHORT 	 1 	 "2"
DocumentName 	 ASCII 	 24 	 "/home/ahuggel/mini9.tif"
ImageDescription 	 ASCII 	 18 	 "Created with GIMP"
StripOffsets 	 LONG 	 1 	 "8"
Orientation 	 SHORT 	 1 	 "1"
SamplesPerPixel 	 SHORT 	 1 	 "3"
RowsPerStrip 	 SHORT 	 1 	 "64"
StripByteCounts 	 LONG 	 1 	 "243"
XResolution 	 RATIONAL 	 1 	 "1207959552/16777216"
YResolution 	 RATIONAL 	 1 	 "1207959552/16777216"
PlanarConfiguration 	 SHORT 	 1 	 "1"
ResolutionUnit 	 SHORT 	 1 	 "2"

Analysis
count =  17 COUNT =  17
Test 1: Writing empty Exif data without original binary data: ok.
Test 2: Writing empty Exif data with original binary data: ok.
Test 3: Wrote non-empty Exif data without original binary data:
Exif.Image.ExifTag                           0x8769 Long        1  26
Exif.Photo.DateTimeOriginal                  0x9003 Ascii      18  Yesterday at noon
MIME type:  image/tiff
Image size: 9 x 9
Before
Exif.Image.NewSubfileType                    0x00fe Long        1  0
Exif.Image.ImageWidth                        0x0100 Short       1  9
Exif.Image.ImageLength                       0x0101 Short       1  9
Exif.Image.BitsPerSample                     0x0102 Short       3  8 8 8
Exif.Image.Compression                       0x0103 Short       1  1
Exif.Image.PhotometricInterpretation         0x0106 Short       1  2
Exif.Image.DocumentName                      0x010d Ascii      24  /home/ahuggel/mini9.tif
Exif.Image.ImageDescription                  0x010e Ascii      18  Created with GIMP
Exif.Image.StripOffsets                      0x0111 Long        1  8
Exif.Image.Orientation                       0x0112 Short       1  1
Exif.Image.SamplesPerPixel                   0x0115 Short       1  3
Exif.Image.RowsPerStrip                      0x0116 Short       1  64
Exif.Image.StripByteCounts                   0x0117 Long        1  243
Exif.Image.XResolution                       0x011a Rational    1  1207959552/16777216
Exif.Image.YResolution                       0x011b Rational    1  1207959552/16777216
Exif.Image.PlanarConfiguration               0x011c Short       1  1
Exif.Image.ResolutionUnit                    0x0128 Short       1  2
======
After
Exif.Image.NewSubfileType                    0x00fe Long        1  0
Exif.Image.ImageWidth                        0x0100 Short       1  9
Exif.Image.ImageLength                       0x0101 Short       1  9
Exif.Image.BitsPerSample                     0x0102 Short       3  8 8 8
Exif.Image.Compression                       0x0103 Short       1  1
Exif.Image.PhotometricInterpretation         0x0106 Short       1  2
Exif.Image.DocumentName                      0x010d Ascii      24  /home/ahuggel/mini9.tif
Exif.Image.ImageDescription                  0x010e Ascii      18  Created with GIMP
Exif.Image.StripOffsets                      0x0111 Long        1  8
Exif.Image.Orientation                       0x0112 Short       1  1
Exif.Image.SamplesPerPixel                   0x0115 Short       1  3
Exif.Image.RowsPerStrip                      0x0116 Short       1  64
Exif.Image.StripByteCounts                   0x0117 Long        1  243
Exif.Image.XResolution                       0x011a Rational    1  1207959552/16777216
Exif.Image.YResolution                       0x011b Rational    1  1207959552/16777216
Exif.Image.PlanarConfiguration               0x011c Short       1  1
Exif.Image.ResolutionUnit                    0x0128 Short       1  2
Exif.Photo.DateTimeOriginal                  0x9003 Ascii      18  Yesterday at noon
exiv2 -pa output
NewSubfileType 	 Long 	 1 	 "Primary image"
ImageWidth 	 Short 	 1 	 "9"
ImageLength 	 Short 	 1 	 "9"
BitsPerSample 	 Short 	 3 	 "8 8 8"
Compression 	 Short 	 1 	 "Uncompressed"
PhotometricInterpretation 	 Short 	 1 	 "RGB"
DocumentName 	 Ascii 	 24 	 "/home/ahuggel/mini9.tif"
ImageDescription 	 Ascii 	 18 	 "Created with GIMP"
StripOffsets 	 Long 	 1 	 "330"
Orientation 	 Short 	 1 	 "top, left"
SamplesPerPixel 	 Short 	 1 	 "3"
RowsPerStrip 	 Short 	 1 	 "64"
StripByteCounts 	 Long 	 1 	 "243"
XResolution 	 Rational 	 1 	 "72"
YResolution 	 Rational 	 1 	 "72"
PlanarConfiguration 	 Short 	 1 	 "1"
ResolutionUnit 	 Short 	 1 	 "inch"
ExifTag 	 Long 	 1 	 "294"
DateTimeOriginal 	 Ascii 	 18 	 "Yesterday at noon"

exiv2 -pS output
NewSubfileType 	 LONG 	 1 	 "0"
ImageWidth 	 SHORT 	 1 	 "9"
ImageLength 	 SHORT 	 1 	 "9"
BitsPerSample 	 SHORT 	 3 	 "8 8 8"
Compression 	 SHORT 	 1 	 "1"
PhotometricInterpretation 	 SHORT 	 1 	 "2"
DocumentName 	 ASCII 	 24 	 "/home/ahuggel/mini9.tif"
ImageDescription 	 ASCII 	 18 	 "Created with GIMP"
StripOffsets 	 LONG 	 1 	 "330"
Orientation 	 SHORT 	 1 	 "1"
SamplesPerPixel 	 SHORT 	 1 	 "3"
RowsPerStrip 	 SHORT 	 1 	 "64"
StripByteCounts 	 LONG 	 1 	 "243"
XResolution 	 RATIONAL 	 1 	 "1207959552/16777216"
YResolution 	 RATIONAL 	 1 	 "1207959552/16777216"
PlanarConfiguration 	 SHORT 	 1 	 "1"
ResolutionUnit 	 SHORT 	 1 	 "2"
ExifTag 	 LONG 	 1 	 "294"

Analysis
count =  19 COUNT =  18
TAG DateTimeOriginal mismatch
TYPE ASCII mismatch
Length 18 mismatch
Value Yesterday at noon mismatch