def test_file_as_memory_output(self):
img = array([[0, 1], [1, 0], [.5, .3]])
mem = BytesIO()
img2output(img, cmap="gray", output=mem)
mem.seek(0)
png_data = imread(mem)
for row_png, row_img in zip(png_data, img):
for pixel_png, pixel_img in zip(row_png, row_img):
assert almost_equal_diff(pixel_png[-1], 1.)
for pixel in pixel_png[:-1]:
assert almost_equal_diff(pixel, pixel_img)
def test_file_as_memory_output(self):
img = array([[0, 1], [1, 0], [.5, .3]])
mem = BytesIO()
img2output(img, cmap="gray", output=mem)
mem.seek(0)
png_data = imread(mem)
for row_png, row_img in zip(png_data, img):
for pixel_png, pixel_img in zip(row_png, row_img):
assert almost_equal_diff(pixel_png[-1], 1.)
for pixel in pixel_png[:-1]:
assert almost_equal_diff(pixel, pixel_img)
def test_show_and_output(self, monkeypatch):
def imsave(output, img, cmap): # Should be called first
assert not imsave.called
assert not imshow.called
assert cmap == "something"
assert img.shape == (2, 4)
imsave.called = True
output.write(b"Data!")
def imshow(img, cmap):
assert imsave.called
assert not imshow.called
assert cmap == "something"
assert img.shape == (2, 4)
imshow.called = True
def show():
assert imsave.called
assert imshow.called
monkeypatch.setattr(pylab, "imsave", imsave)
monkeypatch.setattr(pylab, "imshow", imshow)
monkeypatch.setattr(pylab, "show", show)
img = array([[5, -1, 4, .0003], [.1, 0., 47.8, -8]])
imshow.called = False
imsave.called = False
mem = BytesIO()
assert img2output(img, cmap="something", output=mem, show=True) is None
mem.seek(0)
assert mem.read() == b"Data!"
def test_show_and_output(self, monkeypatch):
def imsave(output, img, cmap): # Should be called first
assert not imsave.called
assert not imshow.called
assert cmap == "something"
assert img.shape == (2, 4)
imsave.called = True
output.write(b"Data!")
def imshow(img, cmap):
assert imsave.called
assert not imshow.called
assert cmap == "something"
assert img.shape == (2, 4)
imshow.called = True
def show():
assert imsave.called
assert imshow.called
monkeypatch.setattr(pylab, "imsave", imsave)
monkeypatch.setattr(pylab, "imshow", imshow)
monkeypatch.setattr(pylab, "show", show)
img = array([[5, -1, 4, .0003], [.1, 0., 47.8, -8]])
imshow.called = False
imsave.called = False
mem = BytesIO()
assert img2output(img, cmap="something", output=mem, show=True) is None
mem.seek(0)
assert mem.read() == b"Data!"
def test_show(self, monkeypatch):
def imshow(img, cmap):
assert not imshow.called
assert cmap == "gray"
assert img.shape == (3, 2)
imshow.called = True
def show():
assert imshow.called
monkeypatch.setattr(pylab, "imshow", imshow)
monkeypatch.setattr(pylab, "show", show)
img = array([[0, 1], [1, 0], [.5, .3]])
imshow.called = False
assert img2output(img, cmap="gray", show=True) is None
def test_show(self, monkeypatch):
def imshow(img, cmap):
assert not imshow.called
assert cmap == "gray"
assert img.shape == (3, 2)
imshow.called = True
def show():
assert imshow.called
monkeypatch.setattr(pylab, "imshow", imshow)
monkeypatch.setattr(pylab, "show", show)
img = array([[0, 1], [1, 0], [.5, .3]])
imshow.called = False
assert img2output(img, cmap="gray", show=True) is None