102 lines
3.0 KiB
Python
102 lines
3.0 KiB
Python
# vim: set fileencoding=utf-8 :
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import sys
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import os
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import shutil
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import tempfile
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import pytest
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import pyvips
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from helpers import \
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JPEG_FILE, PNG_FILE, TIF_FILE, \
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WEBP_FILE, \
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temp_filename, assert_almost_equal_objects, have, skip_if_no
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class TestStream:
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tempdir = None
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@classmethod
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def setup_class(cls):
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# for now, only run these tests if we have the stream pyvips installed
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if pyvips.__version__ != "2.1.10":
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pytest.skip("tests cannot run with pyvips {}"
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.format(pyvips.__version__))
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cls.tempdir = tempfile.mkdtemp()
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cls.colour = pyvips.Image.jpegload(JPEG_FILE)
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cls.mono = cls.colour.extract_band(1)
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# we remove the ICC profile: the RGB one will no longer be appropriate
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cls.mono.remove("icc-profile-data")
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cls.rad = cls.colour.float2rad()
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cls.rad.remove("icc-profile-data")
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cls.cmyk = cls.colour.bandjoin(cls.mono)
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cls.cmyk = cls.cmyk.copy(interpretation=pyvips.Interpretation.CMYK)
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cls.cmyk.remove("icc-profile-data")
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@classmethod
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def teardown_class(cls):
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shutil.rmtree(cls.tempdir, ignore_errors=True)
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def test_streami_new_filename(self):
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x = pyvips.Streami.new_from_filename(JPEG_FILE)
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assert x.filename() == JPEG_FILE
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@skip_if_no("jpegload_stream")
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def test_image_new_from_stream_filename(self):
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x = pyvips.Streami.new_from_filename(JPEG_FILE)
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y = pyvips.Image.new_from_stream(x, "")
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assert y.width == 1024
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assert y.height == 768
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def test_streamo_new_filename(self):
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filename = temp_filename(self.tempdir, ".jpg")
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x = pyvips.Streamo.new_to_filename(filename)
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assert x.filename() == filename
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@skip_if_no("jpegload_stream")
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def test_image_write_to_stream_filename(self):
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filename = temp_filename(self.tempdir, ".jpg")
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x = pyvips.Streamo.new_to_filename(filename)
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self.colour.write_to_stream(x, ".jpg")
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with open(filename, 'rb') as f:
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data = f.read()
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data2 = self.colour.write_to_buffer(".jpg")
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assert data == data2
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def test_streami_new_memory(self):
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data = self.colour.write_to_buffer(".jpg")
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x = pyvips.Streami.new_from_memory(data)
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assert x.filename() == None
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@skip_if_no("jpegload_stream")
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def test_image_new_from_stream_memory(self):
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data = self.colour.write_to_buffer(".jpg")
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x = pyvips.Streami.new_from_memory(data)
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y = pyvips.Image.new_from_stream(x, "")
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assert y.width == 1024
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assert y.height == 768
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def test_streamo_new_memory(self):
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x = pyvips.Streamo.new_to_memory()
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assert x.filename() == None
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@skip_if_no("jpegload_stream")
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def test_image_write_to_stream_filename(self):
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x = pyvips.Streamo.new_to_memory()
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self.colour.write_to_stream(x, ".jpg")
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y = self.colour.write_to_buffer(".jpg")
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assert x.get("blob") == y
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if __name__ == '__main__':
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pytest.main()
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