add tests for exif string fields
test exif string tag set/save/load
This commit is contained in:
John Cupitt
parent
51e7645859
commit
43199e7b27
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@ -119,7 +119,7 @@ class TestForeign:
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x = None
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@skip_if_no('jpegload')
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@skip_if_no("jpegload")
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def test_jpeg(self):
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def jpeg_valid(im):
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a = im(10, 10)
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@ -147,9 +147,12 @@ class TestForeign:
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# can set, save and load new orientation
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x = pyvips.Image.new_from_file(JPEG_FILE)
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x = x.copy()
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x.set("orientation", 2)
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filename = temp_filename(self.tempdir, '.jpg')
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x.write_to_file(filename)
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x = pyvips.Image.new_from_file(filename)
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y = x.get("orientation")
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assert y == 2
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@ -157,26 +160,80 @@ class TestForeign:
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# can remove orientation, save, load again, orientation
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# has reset
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x.remove("orientation")
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filename = temp_filename(self.tempdir, '.jpg')
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x.write_to_file(filename)
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x = pyvips.Image.new_from_file(filename)
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y = x.get("orientation")
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assert y == 1
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# autorotate load works
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filename = temp_filename(self.tempdir, '.jpg')
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x = pyvips.Image.new_from_file(JPEG_FILE)
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x = x.copy()
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x.set("orientation", 6)
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filename = temp_filename(self.tempdir, '.jpg')
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x.write_to_file(filename)
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x1 = pyvips.Image.new_from_file(filename)
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x2 = pyvips.Image.new_from_file(filename, autorotate=True)
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assert x1.width == x2.height
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assert x1.height == x2.width
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@pytest.mark.skipif(not have("pngload") or
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not os.path.isfile(PNG_FILE),
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reason="no png support, skipping test")
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# can set, save and reload ASCII string fields
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x = pyvips.Image.new_from_file(JPEG_FILE)
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x = x.copy()
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x.set_type(pyvips.GValue.gstr_type,
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"exif-ifd0-ImageDescription", "hello world")
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filename = temp_filename(self.tempdir, '.jpg')
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x.write_to_file(filename)
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x = pyvips.Image.new_from_file(filename)
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y = x.get("exif-ifd0-ImageDescription")
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# can't use == since the string will have an extra " (xx, yy, zz)"
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# format area at the end
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assert y.startswith("hello world")
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# can set, save and reload UTF16 string fields ... pyvips is
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# utf8, but it will be coded as utf16 and back for the XP* fields
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x = pyvips.Image.new_from_file(JPEG_FILE)
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x = x.copy()
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x.set_type(pyvips.GValue.gstr_type, "exif-ifd0-XPComment", "йцук")
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filename = temp_filename(self.tempdir, '.jpg')
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x.write_to_file(filename)
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x = pyvips.Image.new_from_file(filename)
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y = x.get("exif-ifd0-XPComment")
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# can't use == since the string will have an extra " (xx, yy, zz)"
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# format area at the end
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assert y.startswith("йцук")
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# can set/save/load UserComment, a tag which has the
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# encoding in the first 8 bytes ... though libexif only supports
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# ASCII for this
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x = pyvips.Image.new_from_file(JPEG_FILE)
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x = x.copy()
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x.set_type(pyvips.GValue.gstr_type,
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"exif-ifd2-UserComment", "hello world")
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filename = temp_filename(self.tempdir, '.jpg')
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x.write_to_file(filename)
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x = pyvips.Image.new_from_file(filename)
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y = x.get("exif-ifd2-UserComment")
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# can't use == since the string will have an extra " (xx, yy, zz)"
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# format area at the end
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assert y.startswith("hello world")
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@skip_if_no("pngload")
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def test_png(self):
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def png_valid(im):
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a = im(10, 10)
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@ -191,9 +248,7 @@ class TestForeign:
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self.save_load("%s.png", self.mono)
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self.save_load("%s.png", self.colour)
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@pytest.mark.skipif(not have("tiffload") or
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not os.path.isfile(TIF_FILE),
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reason="no tiff support, skipping test")
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@skip_if_no("tiffload")
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def test_tiff(self):
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def tiff_valid(im):
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a = im(10, 10)
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@ -314,9 +369,7 @@ class TestForeign:
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assert a.height == b.height
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assert a.avg() == b.avg()
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@pytest.mark.skipif(not have("magickload") or
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not os.path.isfile(BMP_FILE),
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reason="no magick support, skipping test")
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@skip_if_no("magickload")
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def test_magickload(self):
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def bmp_valid(im):
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a = im(100, 100)
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@ -377,8 +430,7 @@ class TestForeign:
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self.colour, 0, format="BMP")
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self.save_load("%s.bmp", self.colour)
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@pytest.mark.skipif(not have("webpload") or not os.path.isfile(WEBP_FILE),
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reason="no webp support, skipping test")
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@skip_if_no("webpload")
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def test_webp(self):
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def webp_valid(im):
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a = im(10, 10)
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@ -428,9 +480,7 @@ class TestForeign:
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y = pyvips.Image.new_from_buffer(buf, "")
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assert y.get("orientation") == 6
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@pytest.mark.skipif(not have("analyzeload") or
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not os.path.isfile(ANALYZE_FILE),
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reason="no analyze support, skipping test")
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@skip_if_no("analyzeload")
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def test_analyzeload(self):
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def analyze_valid(im):
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a = im(10, 10)
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@ -441,9 +491,7 @@ class TestForeign:
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self.file_loader("analyzeload", ANALYZE_FILE, analyze_valid)
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@pytest.mark.skipif(not have("matload") or
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not os.path.isfile(MATLAB_FILE),
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reason="no matlab support, skipping test")
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@skip_if_no("matload")
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def test_matload(self):
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def matlab_valid(im):
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a = im(10, 10)
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@ -454,9 +502,7 @@ class TestForeign:
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self.file_loader("matload", MATLAB_FILE, matlab_valid)
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@pytest.mark.skipif(not have("openexrload") or
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not os.path.isfile(EXR_FILE),
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reason="no openexr support, skipping test")
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@skip_if_no("openexrload")
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def test_openexrload(self):
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def exr_valid(im):
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a = im(10, 10)
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@ -469,9 +515,7 @@ class TestForeign:
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self.file_loader("openexrload", EXR_FILE, exr_valid)
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@pytest.mark.skipif(not have("fitsload") or
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not os.path.isfile(FITS_FILE),
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reason="no fits support, skipping test")
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@skip_if_no("fitsload")
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def test_fitsload(self):
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def fits_valid(im):
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a = im(10, 10)
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@ -484,9 +528,7 @@ class TestForeign:
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self.file_loader("fitsload", FITS_FILE, fits_valid)
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self.save_load("%s.fits", self.mono)
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@pytest.mark.skipif(not have("openslideload") or # noqa: E501
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not os.path.isfile(OPENSLIDE_FILE),
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reason="no openslide support, skipping test")
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@skip_if_no("openslideload")
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def test_openslideload(self):
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def openslide_valid(im):
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a = im(10, 10)
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@ -497,9 +539,7 @@ class TestForeign:
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self.file_loader("openslideload", OPENSLIDE_FILE, openslide_valid)
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@pytest.mark.skipif(not have("pdfload") or
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not os.path.isfile(PDF_FILE),
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reason="no pdf support, skipping test")
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@skip_if_no("pdfload")
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def test_pdfload(self):
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def pdf_valid(im):
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a = im(10, 10)
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@ -521,9 +561,7 @@ class TestForeign:
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assert abs(im.width * 2 - x.width) < 2
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assert abs(im.height * 2 - x.height) < 2
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@pytest.mark.skipif(not have("gifload") or
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not os.path.isfile(GIF_FILE),
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reason="no gif support, skipping test")
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@skip_if_no("gifload")
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def test_gifload(self):
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def gif_valid(im):
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a = im(10, 10)
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@ -549,9 +587,7 @@ class TestForeign:
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x2 = pyvips.Image.new_from_file(GIF_ANIM_FILE, page=1, n=-1)
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assert x2.height == 4 * x1.height
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@pytest.mark.skipif(not have("svgload") or
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not os.path.isfile(SVG_FILE),
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reason="no svg support, skipping test")
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@skip_if_no("svgload")
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def test_svgload(self):
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def svg_valid(im):
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a = im(10, 10)
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@ -590,21 +626,18 @@ class TestForeign:
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def test_matrix(self):
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self.save_load("%s.mat", self.mono)
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@pytest.mark.skipif(not have("ppmload"),
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reason="no PPM support, skipping test")
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@skip_if_no("ppmload")
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def test_ppm(self):
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self.save_load("%s.ppm", self.mono)
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self.save_load("%s.ppm", self.colour)
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@pytest.mark.skipif(not have("radload"),
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reason="no Radiance support, skipping test")
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@skip_if_no("radload")
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def test_rad(self):
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self.save_load("%s.hdr", self.colour)
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self.save_buffer_tempfile("radsave_buffer", ".hdr",
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self.rad, max_diff=0)
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@pytest.mark.skipif(not have("dzsave"),
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reason="no dzsave support, skipping test")
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@skip_if_no("dzsaveload")
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def test_dzsave(self):
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# dzsave is hard to test, there are so many options
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# test each option separately and hope they all function together
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