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import mapbox_earcut as earcut
import numpy as np
import pytest
def test_valid_triangulation_float32():
verts = np.array([[0, 0], [1, 0], [1, 1]], dtype=np.float32).reshape(-1, 2)
rings = np.array([3])
result = earcut.triangulate_float32(verts, rings)
assert result.dtype == np.uint32
assert result.shape == (3, )
assert np.all(result == np.array([1, 2, 0]))
def test_valid_triangulation_float64():
verts = np.array([[0, 0], [1, 0], [1, 1]], dtype=np.float64).reshape(-1, 2)
rings = np.array([3])
result = earcut.triangulate_float32(verts, rings)
assert result.dtype == np.uint32
assert result.shape == (3, )
assert np.all(result == np.array([1, 2, 0]))
def test_valid_triangulation_int32():
verts = np.array([[0, 0], [1, 0], [1, 1]], dtype=np.int32).reshape(-1, 2)
rings = np.array([3])
result = earcut.triangulate_float32(verts, rings)
assert result.dtype == np.uint32
assert result.shape == (3, )
assert np.all(result == np.array([1, 2, 0]))
def test_inverted_vertex_order():
verts = np.array(
list(reversed([[0, 0], [1, 0], [1, 1]])), dtype=np.int32).reshape(
-1, 2)
rings = np.array([3])
result = earcut.triangulate_float32(verts, rings)
assert result.dtype == np.uint32
assert result.shape == (3, )
assert np.all(result == np.array([1, 0, 2]))
def test_no_triangles():
verts = np.array([[0, 0], [1, 0], [1, 1]], dtype=np.int32).reshape(-1, 2)
rings = np.array([2, 3])
result = earcut.triangulate_float32(verts, rings)
assert result.dtype == np.uint32
assert result.shape == (0, )
def test_valid_triangulation_int64():
verts = np.array([[0, 0], [1, 0], [1, 1]], dtype=np.int64).reshape(-1, 2)
rings = np.array([3])
result = earcut.triangulate_float32(verts, rings)
assert result.dtype == np.uint32
assert result.shape == (3, )
assert np.all(result == np.array([1, 2, 0]))
def test_end_index_too_large():
verts = np.array([[0, 0], [1, 0], [1, 1]]).reshape(-1, 2)
rings = np.array([5])
with pytest.raises(ValueError):
_ = earcut.triangulate_float32(verts, rings)
def test_end_index_too_small():
verts = np.array([[0, 0], [1, 0], [1, 1]]).reshape(-1, 2)
rings = np.array([2])
with pytest.raises(ValueError):
_ = earcut.triangulate_float32(verts, rings)
def test_end_index_neg():
verts = np.array([[0, 0], [1, 0], [1, 1]]).reshape(-1, 2)
rings = np.array([-1])
with pytest.raises(ValueError):
_ = earcut.triangulate_float32(verts, rings)
def test_rings_not_increasing():
verts = np.array([[0, 0], [1, 0], [1, 1]]).reshape(-1, 2)
rings = np.array([3, 0, 3])
with pytest.raises(ValueError):
_ = earcut.triangulate_float32(verts, rings)
def test_rings_same():
verts = np.array([[0, 0], [1, 0], [1, 1]]).reshape(-1, 2)
rings = np.array([3, 3])
with pytest.raises(ValueError):
_ = earcut.triangulate_float32(verts, rings)
def test_no_rings():
verts = np.array([[0, 0], [1, 0], [1, 1]]).reshape(-1, 2)
rings = np.array([])
with pytest.raises(ValueError):
_ = earcut.triangulate_float32(verts, rings)
def test_empty_data():
verts = np.array([]).reshape(-1, 2)
rings = np.array([])
result = earcut.triangulate_float32(verts, rings)
assert result.shape == (0, )
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