Fixed database typo and removed unnecessary class identifier.

venv/Lib/site-packages/skimage/draw/tests/test_polygon2mask.py

@@ -0,0 +1,14 @@
+import numpy as np
+
+from skimage import draw
+
+
+image_shape = (512, 512)
+polygon = np.array([[80, 111, 146, 234, 407, 300, 187, 45],
+                    [465, 438, 499, 380, 450, 287, 210, 167]]).T
+
+
+def test_polygon2mask():
+    mask = draw.polygon2mask(image_shape, polygon)
+    assert mask.shape == image_shape
+    assert mask.sum() == 57647