def test_multi_segment(self):
'''
what if we break it down into smaller segments?
'''
img = Image(10, 10)
val = int(2**30) # should work
coords = np.linspace(-val, val, 100000)
rev_coords = np.flipud(coords)
diag = np.c_[coords, coords]
bottom = np.c_[rev_coords, np.ones_like(coords) * val]
side = np.c_[np.ones_like(coords) * -val, rev_coords, ]
points = np.r_[diag, bottom, side]
img.draw_polygon(points,
line_color='black',
fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
print arr
print self.arr
# this is expected to not be equal -- we've found a too-big value
assert np.array_equal(arr, self.arr)
def test_polygon_clip():
img = Image(100, 200)
points = ((-20, 10), (20, 250), (120, 10), (50, 50))
img.draw_polygon(points, fill_color='blue', line_color='red')
img.save(outfile("test_image_polygon_clip.bmp"))
def test_multi_segment(self):
'''
what if we break it down into smaller segments?
'''
img = Image(10, 10)
val = int(2 ** 30) # should work
coords = np.linspace(-val, val, 100000)
rev_coords = np.flipud(coords)
diag = np.c_[coords, coords]
bottom = np.c_[rev_coords, np.ones_like(coords) * val]
side = np.c_[np.ones_like(coords) * -val, rev_coords, ]
points = np.r_[diag, bottom, side]
img.draw_polygon(points, line_color='black', fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
print arr
print self.arr
# this is expected to not be equal -- we've found a too-big value
assert np.array_equal(arr, self.arr)
def test_Polygon1():
img = Image(100, 200)
points = ((10, 10), (20, 190), (90, 10), (50, 50))
img.draw_polygon(points, 'red')
img.save(outfile("test_image_poly1.bmp"))
def test_Polygon3():
img = Image(100, 200)
points = ((10, 10), (20, 190), (90, 10), (50, 50))
img.draw_polygon(points, fill_color='blue', line_color='red', line_width=4)
img.save(outfile("test_image_poly3.bmp"))
def test_Polygon2():
img = Image(100, 200)
points = ((10, 10), (20, 190), (90, 10), (50, 50))
img.draw_polygon(points, fill_color='blue')
img.save(outfile("test_image_poly2.bmp"))
def test_inside(self):
'''just to make sure the comparing is working'''
img = Image(10, 10)
# a triangle that divides the image
points = ((-1, -1), (11, 11), (-1, 11))
img.draw_polygon(points, line_color='black', fill_color=None,
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_outside(self):
'''second value too large'''
img = Image(10, 10)
# a triangle that divides the image
points = ((-1, -1), (100, 100), (-1, 100))
img.draw_polygon(points, line_color='black', fill_color=None,
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_negative(self):
'''negative coords value too large'''
img = Image(10, 10)
# a triangle that divides the image
points = ((-100, -100), (10, 10), (-100, 10))
img.draw_polygon(points, line_color='black', fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_outside(self):
'''second value too large'''
img = Image(10, 10)
# a triangle that divides the image
points = ((-1, -1), (100, 100), (-1, 100))
img.draw_polygon(points,
line_color='black',
fill_color=None,
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_negative(self):
'''negative coords value too large'''
img = Image(10, 10)
# a triangle that divides the image
points = ((-100, -100), (10, 10), (-100, 10))
img.draw_polygon(points,
line_color='black',
fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_inside(self):
'''just to make sure the comparing is working'''
img = Image(10, 10)
# a triangle that divides the image
points = ((-1, -1), (11, 11), (-1, 11))
img.draw_polygon(points,
line_color='black',
fill_color=None,
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_huge(self):
'''
really big values, negative and positive, but not quite enough
to overflow an integer
'''
img = Image(10, 10)
val = int(2 ** 30)
# a triangle that divides the image
points = ((-val, -val), (val, val), (-val, val))
img.draw_polygon(points, line_color='black', fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_large(self):
'''
large values, negative and positive
just less than sqrt(max_int32)
this seems to confirm that that's the limit
'''
img = Image(10, 10)
val = int(2 ** 14)
# a triangle that divides the image
points = ((-val, -val), (val, val), (-val, val))
img.draw_polygon(points, line_color='black', fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_huge(self):
'''
really big values, negative and positive, but not quite enough
to overflow an integer
'''
img = Image(10, 10)
val = int(2**30)
# a triangle that divides the image
points = ((-val, -val), (val, val), (-val, val))
img.draw_polygon(points,
line_color='black',
fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_too_large(self):
'''
large values, negative and positive
just more than sqrt(max_int32)
this seems to confirm that that's the limit
'''
img = Image(10, 10)
val = int(2 ** 15)
# a triangle that divides the image
points = ((-val, -val), (val, val), (-1, val))
img.draw_polygon(points, line_color='black', fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
# this is expected to not be equal -- we've found a too-big value
assert not np.array_equal(arr, self.arr)
def test_overflow(self):
'''
Big enough to overflow an 32 bit int
'''
img = Image(10, 10)
val = int(2 ** 33)
# with pytest.raises(OverflowError):
# img.draw_line( (-val, -val), (val, val), 'white', line_width=2)
# a triangle that divides the image
points = ((-val, -val), (val, val), (-val, val))
img.draw_polygon(points, line_color='black', fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
# This isn't expect to draw correctly
assert not np.array_equal(arr, self.arr)
def test_large(self):
'''
large values, negative and positive
just less than sqrt(max_int32)
this seems to confirm that that's the limit
'''
img = Image(10, 10)
val = int(2**14)
# a triangle that divides the image
points = ((-val, -val), (val, val), (-val, val))
img.draw_polygon(points,
line_color='black',
fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
assert np.array_equal(arr, self.arr)
def test_too_large(self):
'''
large values, negative and positive
just more than sqrt(max_int32)
this seems to confirm that that's the limit
'''
img = Image(10, 10)
val = int(2**15)
# a triangle that divides the image
points = ((-val, -val), (val, val), (-1, val))
img.draw_polygon(points,
line_color='black',
fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
# this is expected to not be equal -- we've found a too-big value
assert not np.array_equal(arr, self.arr)
def test_overflow(self):
'''
Big enough to overflow an 32 bit int
'''
img = Image(10, 10)
val = int(2**33)
# with pytest.raises(OverflowError):
# img.draw_line( (-val, -val), (val, val), 'white', line_width=2)
# a triangle that divides the image
points = ((-val, -val), (val, val), (-val, val))
img.draw_polygon(points,
line_color='black',
fill_color='red',
line_width=1)
# save this one as an array
arr = np.array(img)
# This isn't expect to draw correctly
assert not np.array_equal(arr, self.arr)