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https://github.com/python-pillow/Pillow.git
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1544 lines
40 KiB
Python
1544 lines
40 KiB
Python
import os.path
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import pytest
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from PIL import Image, ImageColor, ImageDraw, ImageFont
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from .helper import (
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assert_image_equal,
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assert_image_equal_tofile,
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assert_image_similar_tofile,
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hopper,
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skip_unless_feature,
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)
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BLACK = (0, 0, 0)
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WHITE = (255, 255, 255)
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GRAY = (190, 190, 190)
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DEFAULT_MODE = "RGB"
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IMAGES_PATH = os.path.join("Tests", "images", "imagedraw")
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# Image size
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W, H = 100, 100
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# Bounding box points
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X0 = int(W / 4)
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X1 = int(X0 * 3)
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Y0 = int(H / 4)
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Y1 = int(X0 * 3)
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# Bounding boxes
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BBOX = (((X0, Y0), (X1, Y1)), [(X0, Y0), (X1, Y1)], (X0, Y0, X1, Y1), [X0, Y0, X1, Y1])
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# Coordinate sequences
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POINTS = (
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((10, 10), (20, 40), (30, 30)),
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[(10, 10), (20, 40), (30, 30)],
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(10, 10, 20, 40, 30, 30),
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[10, 10, 20, 40, 30, 30],
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)
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KITE_POINTS = (
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((10, 50), (70, 10), (90, 50), (70, 90), (10, 50)),
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[(10, 50), (70, 10), (90, 50), (70, 90), (10, 50)],
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)
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def test_sanity():
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im = hopper("RGB").copy()
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draw = ImageDraw.ImageDraw(im)
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draw = ImageDraw.Draw(im)
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draw.ellipse(list(range(4)))
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draw.line(list(range(10)))
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draw.polygon(list(range(100)))
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draw.rectangle(list(range(4)))
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def test_valueerror():
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with Image.open("Tests/images/chi.gif") as im:
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draw = ImageDraw.Draw(im)
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draw.line((0, 0), fill=(0, 0, 0))
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def test_mode_mismatch():
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im = hopper("RGB").copy()
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with pytest.raises(ValueError):
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ImageDraw.ImageDraw(im, mode="L")
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@pytest.mark.parametrize("bbox", BBOX)
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@pytest.mark.parametrize("start, end", ((0, 180), (0.5, 180.4)))
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def test_arc(bbox, start, end):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.arc(bbox, start, end)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_arc.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_arc_end_le_start(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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start = 270.5
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end = 0
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# Act
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draw.arc(bbox, start=start, end=end)
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_arc_end_le_start.png")
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@pytest.mark.parametrize("bbox", BBOX)
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def test_arc_no_loops(bbox):
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# No need to go in loops
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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start = 5
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end = 370
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# Act
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draw.arc(bbox, start=start, end=end)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_arc_no_loops.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_arc_width(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.arc(bbox, 10, 260, width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_arc_width.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_arc_width_pieslice_large(bbox):
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# Tests an arc with a large enough width that it is a pieslice
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.arc(bbox, 10, 260, fill="yellow", width=100)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_arc_width_pieslice.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_arc_width_fill(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.arc(bbox, 10, 260, fill="yellow", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_arc_width_fill.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_arc_width_non_whole_angle(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_arc_width_non_whole_angle.png"
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# Act
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draw.arc(bbox, 10, 259.5, width=5)
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# Assert
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assert_image_similar_tofile(im, expected, 1)
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def test_arc_high():
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# Arrange
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im = Image.new("RGB", (200, 200))
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draw = ImageDraw.Draw(im)
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# Act
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draw.arc([10, 10, 89, 189], 20, 330, width=20, fill="white")
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draw.arc([110, 10, 189, 189], 20, 150, width=20, fill="white")
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_arc_high.png")
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def test_bitmap():
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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with Image.open("Tests/images/pil123rgba.png") as small:
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small = small.resize((50, 50), Image.Resampling.NEAREST)
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# Act
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draw.bitmap((10, 10), small)
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_bitmap.png")
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@pytest.mark.parametrize("mode", ("RGB", "L"))
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@pytest.mark.parametrize("bbox", BBOX)
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def test_chord(mode, bbox):
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# Arrange
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im = Image.new(mode, (W, H))
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draw = ImageDraw.Draw(im)
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expected = f"Tests/images/imagedraw_chord_{mode}.png"
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# Act
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draw.chord(bbox, 0, 180, fill="red", outline="yellow")
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# Assert
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assert_image_similar_tofile(im, expected, 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_chord_width(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.chord(bbox, 10, 260, outline="yellow", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_chord_width.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_chord_width_fill(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.chord(bbox, 10, 260, fill="red", outline="yellow", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_chord_width_fill.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_chord_zero_width(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.chord(bbox, 10, 260, fill="red", outline="yellow", width=0)
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_chord_zero_width.png")
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def test_chord_too_fat():
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# Arrange
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im = Image.new("RGB", (100, 100))
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draw = ImageDraw.Draw(im)
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# Act
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draw.chord([-150, -150, 99, 99], 15, 60, width=10, fill="white", outline="red")
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_chord_too_fat.png")
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@pytest.mark.parametrize("mode", ("RGB", "L"))
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@pytest.mark.parametrize("bbox", BBOX)
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def test_ellipse(mode, bbox):
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# Arrange
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im = Image.new(mode, (W, H))
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draw = ImageDraw.Draw(im)
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expected = f"Tests/images/imagedraw_ellipse_{mode}.png"
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# Act
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draw.ellipse(bbox, fill="green", outline="blue")
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# Assert
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assert_image_similar_tofile(im, expected, 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_ellipse_translucent(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im, "RGBA")
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# Act
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draw.ellipse(bbox, fill=(0, 255, 0, 127))
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# Assert
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expected = "Tests/images/imagedraw_ellipse_translucent.png"
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assert_image_similar_tofile(im, expected, 1)
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def test_ellipse_edge():
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.ellipse(((0, 0), (W - 1, H - 1)), fill="white")
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_ellipse_edge.png", 1)
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def test_ellipse_symmetric():
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for width, bbox in (
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(100, (24, 24, 75, 75)),
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(101, (25, 25, 75, 75)),
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):
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im = Image.new("RGB", (width, 100))
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draw = ImageDraw.Draw(im)
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draw.ellipse(bbox, fill="green", outline="blue")
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assert_image_equal(im, im.transpose(Image.Transpose.FLIP_LEFT_RIGHT))
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@pytest.mark.parametrize("bbox", BBOX)
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def test_ellipse_width(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.ellipse(bbox, outline="blue", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_ellipse_width.png", 1)
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def test_ellipse_width_large():
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# Arrange
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im = Image.new("RGB", (500, 500))
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draw = ImageDraw.Draw(im)
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# Act
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draw.ellipse((25, 25, 475, 475), outline="blue", width=75)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_ellipse_width_large.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_ellipse_width_fill(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.ellipse(bbox, fill="green", outline="blue", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_ellipse_width_fill.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_ellipse_zero_width(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.ellipse(bbox, fill="green", outline="blue", width=0)
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_ellipse_zero_width.png")
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def ellipse_various_sizes_helper(filled):
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ellipse_sizes = range(32)
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image_size = sum(ellipse_sizes) + len(ellipse_sizes) + 1
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im = Image.new("RGB", (image_size, image_size))
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draw = ImageDraw.Draw(im)
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x = 1
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for w in ellipse_sizes:
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y = 1
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for h in ellipse_sizes:
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x1 = x + w
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if w:
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x1 -= 1
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y1 = y + h
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if h:
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y1 -= 1
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border = [x, y, x1, y1]
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if filled:
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draw.ellipse(border, fill="white")
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else:
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draw.ellipse(border, outline="white")
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y += h + 1
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x += w + 1
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return im
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def test_ellipse_various_sizes():
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im = ellipse_various_sizes_helper(False)
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assert_image_equal_tofile(im, "Tests/images/imagedraw_ellipse_various_sizes.png")
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def test_ellipse_various_sizes_filled():
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im = ellipse_various_sizes_helper(True)
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assert_image_equal_tofile(
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im, "Tests/images/imagedraw_ellipse_various_sizes_filled.png"
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)
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@pytest.mark.parametrize("points", POINTS)
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def test_line(points):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.line(points, fill="yellow", width=2)
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_line.png")
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def test_shape1():
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# Arrange
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im = Image.new("RGB", (100, 100), "white")
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draw = ImageDraw.Draw(im)
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x0, y0 = 5, 5
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x1, y1 = 5, 50
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x2, y2 = 95, 50
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x3, y3 = 95, 5
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# Act
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s = ImageDraw.Outline()
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s.move(x0, y0)
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s.curve(x1, y1, x2, y2, x3, y3)
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s.line(x0, y0)
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draw.shape(s, fill=1)
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_shape1.png")
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def test_shape2():
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# Arrange
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im = Image.new("RGB", (100, 100), "white")
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draw = ImageDraw.Draw(im)
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x0, y0 = 95, 95
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x1, y1 = 95, 50
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x2, y2 = 5, 50
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x3, y3 = 5, 95
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# Act
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s = ImageDraw.Outline()
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s.move(x0, y0)
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s.curve(x1, y1, x2, y2, x3, y3)
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s.line(x0, y0)
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draw.shape(s, outline="blue")
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_shape2.png")
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def test_transform():
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# Arrange
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im = Image.new("RGB", (100, 100), "white")
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expected = im.copy()
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draw = ImageDraw.Draw(im)
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# Act
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s = ImageDraw.Outline()
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s.line(0, 0)
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s.transform((0, 0, 0, 0, 0, 0))
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draw.shape(s, fill=1)
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# Assert
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assert_image_equal(im, expected)
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@pytest.mark.parametrize("bbox", BBOX)
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@pytest.mark.parametrize("start, end", ((-92, 46), (-92.2, 46.2)))
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def test_pieslice(bbox, start, end):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.pieslice(bbox, start, end, fill="white", outline="blue")
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_pieslice.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_pieslice_width(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.pieslice(bbox, 10, 260, outline="blue", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_pieslice_width.png", 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_pieslice_width_fill(bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_pieslice_width_fill.png"
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# Act
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draw.pieslice(bbox, 10, 260, fill="white", outline="blue", width=5)
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# Assert
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assert_image_similar_tofile(im, expected, 1)
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@pytest.mark.parametrize("bbox", BBOX)
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def test_pieslice_zero_width(bbox):
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# Arrange
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|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.pieslice(bbox, 10, 260, fill="white", outline="blue", width=0)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_pieslice_zero_width.png")
|
|
|
|
|
|
def test_pieslice_wide():
|
|
# Arrange
|
|
im = Image.new("RGB", (200, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.pieslice([0, 0, 199, 99], 190, 170, width=10, fill="white", outline="red")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_pieslice_wide.png")
|
|
|
|
|
|
def test_pieslice_no_spikes():
|
|
im = Image.new("RGB", (161, 161), "white")
|
|
draw = ImageDraw.Draw(im)
|
|
cxs = (
|
|
[140] * 3
|
|
+ list(range(140, 19, -20))
|
|
+ [20] * 5
|
|
+ list(range(20, 141, 20))
|
|
+ [140] * 2
|
|
)
|
|
cys = (
|
|
list(range(80, 141, 20))
|
|
+ [140] * 5
|
|
+ list(range(140, 19, -20))
|
|
+ [20] * 5
|
|
+ list(range(20, 80, 20))
|
|
)
|
|
|
|
for cx, cy, angle in zip(cxs, cys, range(0, 360, 15)):
|
|
draw.pieslice(
|
|
[cx - 100, cy - 100, cx + 100, cy + 100], angle, angle + 1, fill="black"
|
|
)
|
|
draw.point([cx, cy], fill="red")
|
|
|
|
im_pre_erase = im.copy()
|
|
draw.rectangle([21, 21, 139, 139], fill="white")
|
|
|
|
assert_image_equal(im, im_pre_erase)
|
|
|
|
|
|
@pytest.mark.parametrize("points", POINTS)
|
|
def test_point(points):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.point(points, fill="yellow")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_point.png")
|
|
|
|
|
|
@pytest.mark.parametrize("points", POINTS)
|
|
def test_polygon(points):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.polygon(points, fill="red", outline="blue")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_polygon.png")
|
|
|
|
|
|
@pytest.mark.parametrize("mode", ("RGB", "L"))
|
|
@pytest.mark.parametrize("kite_points", KITE_POINTS)
|
|
def test_polygon_kite(mode, kite_points):
|
|
# Test drawing lines of different gradients (dx>dy, dy>dx) and
|
|
# vertical (dx==0) and horizontal (dy==0) lines
|
|
# Arrange
|
|
im = Image.new(mode, (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = f"Tests/images/imagedraw_polygon_kite_{mode}.png"
|
|
|
|
# Act
|
|
draw.polygon(kite_points, fill="blue", outline="yellow")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
def test_polygon_1px_high():
|
|
# Test drawing a 1px high polygon
|
|
# Arrange
|
|
im = Image.new("RGB", (3, 3))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = "Tests/images/imagedraw_polygon_1px_high.png"
|
|
|
|
# Act
|
|
draw.polygon([(0, 1), (0, 1), (2, 1), (2, 1)], "#f00")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
def test_polygon_1px_high_translucent():
|
|
# Test drawing a translucent 1px high polygon
|
|
# Arrange
|
|
im = Image.new("RGB", (4, 3))
|
|
draw = ImageDraw.Draw(im, "RGBA")
|
|
expected = "Tests/images/imagedraw_polygon_1px_high_translucent.png"
|
|
|
|
# Act
|
|
draw.polygon([(1, 1), (1, 1), (3, 1), (3, 1)], (255, 0, 0, 127))
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
def test_polygon_translucent():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im, "RGBA")
|
|
|
|
# Act
|
|
draw.polygon([(20, 80), (80, 80), (80, 20)], fill=(0, 255, 0, 127))
|
|
|
|
# Assert
|
|
expected = "Tests/images/imagedraw_polygon_translucent.png"
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_rectangle(bbox):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rectangle(bbox, fill="black", outline="green")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_rectangle.png")
|
|
|
|
|
|
def test_big_rectangle():
|
|
# Test drawing a rectangle bigger than the image
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
bbox = [(-1, -1), (W + 1, H + 1)]
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rectangle(bbox, fill="orange")
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_big_rectangle.png", 1)
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_rectangle_width(bbox):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = "Tests/images/imagedraw_rectangle_width.png"
|
|
|
|
# Act
|
|
draw.rectangle(bbox, outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_rectangle_width_fill(bbox):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = "Tests/images/imagedraw_rectangle_width_fill.png"
|
|
|
|
# Act
|
|
draw.rectangle(bbox, fill="blue", outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_rectangle_zero_width(bbox):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rectangle(bbox, fill="blue", outline="green", width=0)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_rectangle_zero_width.png")
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_rectangle_I16(bbox):
|
|
# Arrange
|
|
im = Image.new("I;16", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rectangle(bbox, fill="black", outline="green")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im.convert("I"), "Tests/images/imagedraw_rectangle_I.png")
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_rectangle_translucent_outline(bbox):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im, "RGBA")
|
|
|
|
# Act
|
|
draw.rectangle(bbox, fill="black", outline=(0, 255, 0, 127), width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(
|
|
im, "Tests/images/imagedraw_rectangle_translucent_outline.png"
|
|
)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"xy",
|
|
[(10, 20, 190, 180), ([10, 20], [190, 180]), ((10, 20), (190, 180))],
|
|
)
|
|
def test_rounded_rectangle(xy):
|
|
# Arrange
|
|
im = Image.new("RGB", (200, 200))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rounded_rectangle(xy, 30, fill="red", outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_rounded_rectangle.png")
|
|
|
|
|
|
@pytest.mark.parametrize("top_left", (True, False))
|
|
@pytest.mark.parametrize("top_right", (True, False))
|
|
@pytest.mark.parametrize("bottom_right", (True, False))
|
|
@pytest.mark.parametrize("bottom_left", (True, False))
|
|
def test_rounded_rectangle_corners(top_left, top_right, bottom_right, bottom_left):
|
|
corners = (top_left, top_right, bottom_right, bottom_left)
|
|
|
|
# Arrange
|
|
im = Image.new("RGB", (200, 200))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rounded_rectangle(
|
|
(10, 20, 190, 180), 30, fill="red", outline="green", width=5, corners=corners
|
|
)
|
|
|
|
# Assert
|
|
suffix = "".join(
|
|
(
|
|
("y" if top_left else "n"),
|
|
("y" if top_right else "n"),
|
|
("y" if bottom_right else "n"),
|
|
("y" if bottom_left else "n"),
|
|
)
|
|
)
|
|
assert_image_equal_tofile(
|
|
im, "Tests/images/imagedraw_rounded_rectangle_corners_" + suffix + ".png"
|
|
)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"xy, radius, type",
|
|
[
|
|
((10, 20, 190, 180), 30.5, "given"),
|
|
((10, 10, 181, 190), 90, "width"),
|
|
((10, 20, 190, 181), 85, "height"),
|
|
],
|
|
)
|
|
def test_rounded_rectangle_non_integer_radius(xy, radius, type):
|
|
# Arrange
|
|
im = Image.new("RGB", (200, 200))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rounded_rectangle(xy, radius, fill="red", outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(
|
|
im,
|
|
"Tests/images/imagedraw_rounded_rectangle_non_integer_radius_" + type + ".png",
|
|
)
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_rounded_rectangle_zero_radius(bbox):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rounded_rectangle(bbox, 0, fill="blue", outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_rectangle_width_fill.png")
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"xy, suffix",
|
|
[
|
|
((20, 10, 80, 90), "x"),
|
|
((20, 10, 81, 90), "x_odd"),
|
|
((10, 20, 90, 80), "y"),
|
|
((10, 20, 90, 81), "y_odd"),
|
|
((20, 20, 80, 80), "both"),
|
|
],
|
|
)
|
|
def test_rounded_rectangle_translucent(xy, suffix):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im, "RGBA")
|
|
|
|
# Act
|
|
draw.rounded_rectangle(
|
|
xy, 30, fill=(255, 0, 0, 127), outline=(0, 255, 0, 127), width=5
|
|
)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(
|
|
im, "Tests/images/imagedraw_rounded_rectangle_" + suffix + ".png"
|
|
)
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_floodfill(bbox):
|
|
red = ImageColor.getrgb("red")
|
|
|
|
for mode, value in [("L", 1), ("RGBA", (255, 0, 0, 0)), ("RGB", red)]:
|
|
# Arrange
|
|
im = Image.new(mode, (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.rectangle(bbox, outline="yellow", fill="green")
|
|
centre_point = (int(W / 2), int(H / 2))
|
|
|
|
# Act
|
|
ImageDraw.floodfill(im, centre_point, value)
|
|
|
|
# Assert
|
|
expected = "Tests/images/imagedraw_floodfill_" + mode + ".png"
|
|
with Image.open(expected) as im_floodfill:
|
|
assert_image_equal(im, im_floodfill)
|
|
|
|
# Test that using the same colour does not change the image
|
|
ImageDraw.floodfill(im, centre_point, red)
|
|
assert_image_equal(im, im_floodfill)
|
|
|
|
# Test that filling outside the image does not change the image
|
|
ImageDraw.floodfill(im, (W, H), red)
|
|
assert_image_equal(im, im_floodfill)
|
|
|
|
# Test filling at the edge of an image
|
|
im = Image.new("RGB", (1, 1))
|
|
ImageDraw.floodfill(im, (0, 0), red)
|
|
assert_image_equal(im, Image.new("RGB", (1, 1), red))
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_floodfill_border(bbox):
|
|
# floodfill() is experimental
|
|
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.rectangle(bbox, outline="yellow", fill="green")
|
|
centre_point = (int(W / 2), int(H / 2))
|
|
|
|
# Act
|
|
ImageDraw.floodfill(
|
|
im,
|
|
centre_point,
|
|
ImageColor.getrgb("red"),
|
|
border=ImageColor.getrgb("black"),
|
|
)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_floodfill2.png")
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_floodfill_thresh(bbox):
|
|
# floodfill() is experimental
|
|
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.rectangle(bbox, outline="darkgreen", fill="green")
|
|
centre_point = (int(W / 2), int(H / 2))
|
|
|
|
# Act
|
|
ImageDraw.floodfill(im, centre_point, ImageColor.getrgb("red"), thresh=30)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_floodfill2.png")
|
|
|
|
|
|
def test_floodfill_not_negative():
|
|
# floodfill() is experimental
|
|
# Test that floodfill does not extend into negative coordinates
|
|
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.line((W / 2, 0, W / 2, H / 2), fill="green")
|
|
draw.line((0, H / 2, W / 2, H / 2), fill="green")
|
|
|
|
# Act
|
|
ImageDraw.floodfill(im, (int(W / 4), int(H / 4)), ImageColor.getrgb("red"))
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_floodfill_not_negative.png")
|
|
|
|
|
|
def create_base_image_draw(
|
|
size, mode=DEFAULT_MODE, background1=WHITE, background2=GRAY
|
|
):
|
|
img = Image.new(mode, size, background1)
|
|
for x in range(0, size[0]):
|
|
for y in range(0, size[1]):
|
|
if (x + y) % 2 == 0:
|
|
img.putpixel((x, y), background2)
|
|
return img, ImageDraw.Draw(img)
|
|
|
|
|
|
def test_square():
|
|
expected = os.path.join(IMAGES_PATH, "square.png")
|
|
img, draw = create_base_image_draw((10, 10))
|
|
draw.polygon([(2, 2), (2, 7), (7, 7), (7, 2)], BLACK)
|
|
assert_image_equal_tofile(img, expected, "square as normal polygon failed")
|
|
img, draw = create_base_image_draw((10, 10))
|
|
draw.polygon([(7, 7), (7, 2), (2, 2), (2, 7)], BLACK)
|
|
assert_image_equal_tofile(img, expected, "square as inverted polygon failed")
|
|
img, draw = create_base_image_draw((10, 10))
|
|
draw.rectangle((2, 2, 7, 7), BLACK)
|
|
assert_image_equal_tofile(img, expected, "square as normal rectangle failed")
|
|
|
|
|
|
def test_triangle_right():
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.polygon([(3, 5), (17, 5), (10, 12)], BLACK)
|
|
assert_image_equal_tofile(
|
|
img, os.path.join(IMAGES_PATH, "triangle_right.png"), "triangle right failed"
|
|
)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"fill, suffix",
|
|
((BLACK, "width"), (None, "width_no_fill")),
|
|
)
|
|
def test_triangle_right_width(fill, suffix):
|
|
img, draw = create_base_image_draw((100, 100))
|
|
draw.polygon([(15, 25), (85, 25), (50, 60)], fill, WHITE, width=5)
|
|
assert_image_equal_tofile(
|
|
img, os.path.join(IMAGES_PATH, "triangle_right_" + suffix + ".png")
|
|
)
|
|
|
|
|
|
def test_line_horizontal():
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 5), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w2px_normal.png"),
|
|
"line straight horizontal normal 2px wide failed",
|
|
)
|
|
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((14, 5, 5, 5), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w2px_inverted.png"),
|
|
"line straight horizontal inverted 2px wide failed",
|
|
)
|
|
|
|
expected = os.path.join(IMAGES_PATH, "line_horizontal_w3px.png")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line straight horizontal normal 3px wide failed"
|
|
)
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((14, 5, 5, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line straight horizontal inverted 3px wide failed"
|
|
)
|
|
|
|
img, draw = create_base_image_draw((200, 110))
|
|
draw.line((5, 55, 195, 55), BLACK, 101)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w101px.png"),
|
|
"line straight horizontal 101px wide failed",
|
|
)
|
|
|
|
|
|
def test_line_h_s1_w2():
|
|
pytest.skip("failing")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 6), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_horizontal_slope1px_w2px.png"),
|
|
"line horizontal 1px slope 2px wide failed",
|
|
)
|
|
|
|
|
|
def test_line_vertical():
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 5, 14), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_vertical_w2px_normal.png"),
|
|
"line straight vertical normal 2px wide failed",
|
|
)
|
|
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 14, 5, 5), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_vertical_w2px_inverted.png"),
|
|
"line straight vertical inverted 2px wide failed",
|
|
)
|
|
|
|
expected = os.path.join(IMAGES_PATH, "line_vertical_w3px.png")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 5, 14), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line straight vertical normal 3px wide failed"
|
|
)
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 14, 5, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line straight vertical inverted 3px wide failed"
|
|
)
|
|
|
|
img, draw = create_base_image_draw((110, 200))
|
|
draw.line((55, 5, 55, 195), BLACK, 101)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_vertical_w101px.png"),
|
|
"line straight vertical 101px wide failed",
|
|
)
|
|
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 6, 14), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_vertical_slope1px_w2px.png"),
|
|
"line vertical 1px slope 2px wide failed",
|
|
)
|
|
|
|
|
|
def test_line_oblique_45():
|
|
expected = os.path.join(IMAGES_PATH, "line_oblique_45_w3px_a.png")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 14), BLACK, 3)
|
|
assert_image_equal_tofile(img, expected, "line oblique 45 normal 3px wide A failed")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((14, 14, 5, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line oblique 45 inverted 3px wide A failed"
|
|
)
|
|
|
|
expected = os.path.join(IMAGES_PATH, "line_oblique_45_w3px_b.png")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((14, 5, 5, 14), BLACK, 3)
|
|
assert_image_equal_tofile(img, expected, "line oblique 45 normal 3px wide B failed")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 14, 14, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line oblique 45 inverted 3px wide B failed"
|
|
)
|
|
|
|
|
|
def test_wide_line_dot():
|
|
# Test drawing a wide "line" from one point to another just draws a single point
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.line([(50, 50), (50, 50)], width=3)
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_wide_line_dot.png", 1)
|
|
|
|
|
|
def test_wide_line_larger_than_int():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = "Tests/images/imagedraw_wide_line_larger_than_int.png"
|
|
|
|
# Act
|
|
draw.line([(0, 0), (32768, 32768)], width=3)
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, expected, 1)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"xy",
|
|
[
|
|
[
|
|
(400, 280),
|
|
(380, 280),
|
|
(450, 280),
|
|
(440, 120),
|
|
(350, 200),
|
|
(310, 280),
|
|
(300, 280),
|
|
(250, 280),
|
|
(250, 200),
|
|
(150, 200),
|
|
(150, 260),
|
|
(50, 200),
|
|
(150, 50),
|
|
(250, 100),
|
|
],
|
|
(
|
|
400,
|
|
280,
|
|
380,
|
|
280,
|
|
450,
|
|
280,
|
|
440,
|
|
120,
|
|
350,
|
|
200,
|
|
310,
|
|
280,
|
|
300,
|
|
280,
|
|
250,
|
|
280,
|
|
250,
|
|
200,
|
|
150,
|
|
200,
|
|
150,
|
|
260,
|
|
50,
|
|
200,
|
|
150,
|
|
50,
|
|
250,
|
|
100,
|
|
),
|
|
[
|
|
400,
|
|
280,
|
|
380,
|
|
280,
|
|
450,
|
|
280,
|
|
440,
|
|
120,
|
|
350,
|
|
200,
|
|
310,
|
|
280,
|
|
300,
|
|
280,
|
|
250,
|
|
280,
|
|
250,
|
|
200,
|
|
150,
|
|
200,
|
|
150,
|
|
260,
|
|
50,
|
|
200,
|
|
150,
|
|
50,
|
|
250,
|
|
100,
|
|
],
|
|
],
|
|
)
|
|
def test_line_joint(xy):
|
|
im = Image.new("RGB", (500, 325))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.line(xy, GRAY, 50, "curve")
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_line_joint_curve.png", 3)
|
|
|
|
|
|
def test_textsize_empty_string():
|
|
# https://github.com/python-pillow/Pillow/issues/2783
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
# Should not cause 'SystemError: <built-in method getsize of
|
|
# ImagingFont object at 0x...> returned NULL without setting an error'
|
|
draw.textbbox((0, 0), "")
|
|
draw.textbbox((0, 0), "\n")
|
|
draw.textbbox((0, 0), "test\n")
|
|
draw.textlength("")
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_textbbox_stroke():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 20)
|
|
|
|
# Act / Assert
|
|
assert draw.textbbox((2, 2), "A", font, stroke_width=2) == (0, 4, 16, 20)
|
|
assert draw.textbbox((2, 2), "A", font, stroke_width=4) == (-2, 2, 18, 22)
|
|
assert draw.textbbox((2, 2), "ABC\nAaaa", font, stroke_width=2) == (0, 4, 52, 44)
|
|
assert draw.textbbox((2, 2), "ABC\nAaaa", font, stroke_width=4) == (-2, 2, 54, 50)
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_stroke():
|
|
for suffix, stroke_fill in {"same": None, "different": "#0f0"}.items():
|
|
# Arrange
|
|
im = Image.new("RGB", (120, 130))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 120)
|
|
|
|
# Act
|
|
draw.text((12, 12), "A", "#f00", font, stroke_width=2, stroke_fill=stroke_fill)
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(
|
|
im, "Tests/images/imagedraw_stroke_" + suffix + ".png", 3.1
|
|
)
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_stroke_descender():
|
|
# Arrange
|
|
im = Image.new("RGB", (120, 130))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 120)
|
|
|
|
# Act
|
|
draw.text((12, 2), "y", "#f00", font, stroke_width=2, stroke_fill="#0f0")
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_stroke_descender.png", 6.76)
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_split_word():
|
|
# Arrange
|
|
im = Image.new("RGB", (230, 55))
|
|
expected = im.copy()
|
|
expected_draw = ImageDraw.Draw(expected)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 48)
|
|
expected_draw.text((0, 0), "paradise", font=font)
|
|
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.text((0, 0), "par", font=font)
|
|
|
|
length = draw.textlength("par", font=font)
|
|
draw.text((length, 0), "adise", font=font)
|
|
|
|
# Assert
|
|
assert_image_equal(im, expected)
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_stroke_multiline():
|
|
# Arrange
|
|
im = Image.new("RGB", (100, 250))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 120)
|
|
|
|
# Act
|
|
draw.multiline_text(
|
|
(12, 12), "A\nB", "#f00", font, stroke_width=2, stroke_fill="#0f0"
|
|
)
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_stroke_multiline.png", 3.3)
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_setting_default_font():
|
|
# Arrange
|
|
im = Image.new("RGB", (100, 250))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 120)
|
|
|
|
# Act
|
|
ImageDraw.ImageDraw.font = font
|
|
|
|
# Assert
|
|
try:
|
|
assert draw.getfont() == font
|
|
finally:
|
|
ImageDraw.ImageDraw.font = None
|
|
assert isinstance(draw.getfont(), ImageFont.load_default().__class__)
|
|
|
|
|
|
@pytest.mark.parametrize("bbox", BBOX)
|
|
def test_same_color_outline(bbox):
|
|
# Prepare shape
|
|
x0, y0 = 5, 5
|
|
x1, y1 = 5, 50
|
|
x2, y2 = 95, 50
|
|
x3, y3 = 95, 5
|
|
|
|
s = ImageDraw.Outline()
|
|
s.move(x0, y0)
|
|
s.curve(x1, y1, x2, y2, x3, y3)
|
|
s.line(x0, y0)
|
|
|
|
# Begin
|
|
for mode in ["RGB", "L"]:
|
|
for fill, outline in [["red", None], ["red", "red"], ["red", "#f00"]]:
|
|
for operation, args in {
|
|
"chord": [bbox, 0, 180],
|
|
"ellipse": [bbox],
|
|
"shape": [s],
|
|
"pieslice": [bbox, -90, 45],
|
|
"polygon": [[(18, 30), (85, 30), (60, 72)]],
|
|
"rectangle": [bbox],
|
|
}.items():
|
|
# Arrange
|
|
im = Image.new(mode, (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw_method = getattr(draw, operation)
|
|
args += [fill, outline]
|
|
draw_method(*args)
|
|
|
|
# Assert
|
|
expected = f"Tests/images/imagedraw_outline_{operation}_{mode}.png"
|
|
assert_image_similar_tofile(im, expected, 1)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"n_sides, polygon_name, args",
|
|
[
|
|
(4, "square", {}),
|
|
(8, "regular_octagon", {}),
|
|
(4, "square_rotate_45", {"rotation": 45}),
|
|
(3, "triangle_width", {"width": 5, "outline": "yellow"}),
|
|
],
|
|
)
|
|
def test_draw_regular_polygon(n_sides, polygon_name, args):
|
|
im = Image.new("RGBA", size=(W, H), color=(255, 0, 0, 0))
|
|
filename = f"Tests/images/imagedraw_{polygon_name}.png"
|
|
draw = ImageDraw.Draw(im)
|
|
bounding_circle = ((W // 2, H // 2), 25)
|
|
draw.regular_polygon(bounding_circle, n_sides, fill="red", **args)
|
|
assert_image_equal_tofile(im, filename)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"n_sides, expected_vertices",
|
|
[
|
|
(3, [(28.35, 62.5), (71.65, 62.5), (50.0, 25.0)]),
|
|
(4, [(32.32, 67.68), (67.68, 67.68), (67.68, 32.32), (32.32, 32.32)]),
|
|
(
|
|
5,
|
|
[
|
|
(35.31, 70.23),
|
|
(64.69, 70.23),
|
|
(73.78, 42.27),
|
|
(50.0, 25.0),
|
|
(26.22, 42.27),
|
|
],
|
|
),
|
|
(
|
|
6,
|
|
[
|
|
(37.5, 71.65),
|
|
(62.5, 71.65),
|
|
(75.0, 50.0),
|
|
(62.5, 28.35),
|
|
(37.5, 28.35),
|
|
(25.0, 50.0),
|
|
],
|
|
),
|
|
],
|
|
)
|
|
def test_compute_regular_polygon_vertices(n_sides, expected_vertices):
|
|
bounding_circle = (W // 2, H // 2, 25)
|
|
vertices = ImageDraw._compute_regular_polygon_vertices(bounding_circle, n_sides, 0)
|
|
assert vertices == expected_vertices
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"n_sides, bounding_circle, rotation, expected_error, error_message",
|
|
[
|
|
(None, (50, 50, 25), 0, TypeError, "n_sides should be an int"),
|
|
(1, (50, 50, 25), 0, ValueError, "n_sides should be an int > 2"),
|
|
(3, 50, 0, TypeError, "bounding_circle should be a tuple"),
|
|
(
|
|
3,
|
|
(50, 50, 100, 100),
|
|
0,
|
|
ValueError,
|
|
"bounding_circle should contain 2D coordinates "
|
|
"and a radius (e.g. (x, y, r) or ((x, y), r) )",
|
|
),
|
|
(
|
|
3,
|
|
(50, 50, "25"),
|
|
0,
|
|
ValueError,
|
|
"bounding_circle should only contain numeric data",
|
|
),
|
|
(
|
|
3,
|
|
((50, 50, 50), 25),
|
|
0,
|
|
ValueError,
|
|
"bounding_circle centre should contain 2D coordinates (e.g. (x, y))",
|
|
),
|
|
(
|
|
3,
|
|
(50, 50, 0),
|
|
0,
|
|
ValueError,
|
|
"bounding_circle radius should be > 0",
|
|
),
|
|
(
|
|
3,
|
|
(50, 50, 25),
|
|
"0",
|
|
ValueError,
|
|
"rotation should be an int or float",
|
|
),
|
|
],
|
|
)
|
|
def test_compute_regular_polygon_vertices_input_error_handling(
|
|
n_sides, bounding_circle, rotation, expected_error, error_message
|
|
):
|
|
with pytest.raises(expected_error) as e:
|
|
ImageDraw._compute_regular_polygon_vertices(bounding_circle, n_sides, rotation)
|
|
assert str(e.value) == error_message
|
|
|
|
|
|
def test_continuous_horizontal_edges_polygon():
|
|
xy = [
|
|
(2, 6),
|
|
(6, 6),
|
|
(12, 6),
|
|
(12, 12),
|
|
(8, 12),
|
|
(8, 8),
|
|
(4, 8),
|
|
(2, 8),
|
|
]
|
|
img, draw = create_base_image_draw((16, 16))
|
|
draw.polygon(xy, BLACK)
|
|
expected = os.path.join(IMAGES_PATH, "continuous_horizontal_edges_polygon.png")
|
|
assert_image_equal_tofile(
|
|
img, expected, "continuous horizontal edges polygon failed"
|
|
)
|
|
|
|
|
|
def test_discontiguous_corners_polygon():
|
|
img, draw = create_base_image_draw((84, 68))
|
|
draw.polygon(((1, 21), (34, 4), (71, 1), (38, 18)), BLACK)
|
|
draw.polygon(((71, 44), (38, 27), (1, 24)), BLACK)
|
|
draw.polygon(
|
|
((38, 66), (5, 49), (77, 49), (47, 66), (82, 63), (82, 47), (1, 47), (1, 63)),
|
|
BLACK,
|
|
)
|
|
expected = os.path.join(IMAGES_PATH, "discontiguous_corners_polygon.png")
|
|
assert_image_similar_tofile(img, expected, 1)
|
|
|
|
|
|
def test_polygon2():
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.polygon([(18, 30), (19, 31), (18, 30), (85, 30), (60, 72)], "red")
|
|
expected = "Tests/images/imagedraw_outline_polygon_RGB.png"
|
|
assert_image_similar_tofile(im, expected, 1)
|
|
|
|
|
|
@pytest.mark.parametrize("xy", ((1, 1, 0, 1), (1, 1, 1, 0)))
|
|
def test_incorrectly_ordered_coordinates(xy):
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
with pytest.raises(ValueError):
|
|
draw.arc(xy, 10, 260)
|
|
with pytest.raises(ValueError):
|
|
draw.chord(xy, 10, 260)
|
|
with pytest.raises(ValueError):
|
|
draw.ellipse(xy)
|
|
with pytest.raises(ValueError):
|
|
draw.pieslice(xy, 10, 260)
|
|
with pytest.raises(ValueError):
|
|
draw.rectangle(xy)
|
|
with pytest.raises(ValueError):
|
|
draw.rounded_rectangle(xy)
|