def test_parse_vertex_texture():
result = list(Parser(io.StringIO("vt 0\nvt 1 2 3")))
assert len(result) == 2
assert isinstance(result[0], VertexTexture)
assert result[0] == (0.0, 0.0, 0.0)
assert isinstance(result[1], VertexTexture)
assert result[1] == (1.0, 2.0, 3.0)
def test_parse_vertex():
result = list(Parser(io.StringIO("v 0 0 0\nv 1 2 3 4")))
assert len(result) == 2
assert isinstance(result[0], Vertex)
assert result[0] == (0.0, 0.0, 0.0, 1.0)
assert isinstance(result[1], Vertex)
assert result[1] == (1.0, 2.0, 3.0, 4.0)
def test_parse_face_indexes():
result = list(Parser(io.StringIO("f 1/0/0 2 3 -1")))
assert len(result) == 1
assert isinstance(result[0], FaceIndexes)
assert len(result[0]) == 4
assert result[0][0] == (1, 0, 0)
assert result[0][1] == (2, None, None)
assert result[0][2] == (3, None, None)
assert result[0][3] == (-1, None, None)
def test_parse_vertex_normal():
result = list(Parser(io.StringIO("vn 0 0 0")))
assert len(result) == 1
assert isinstance(result[0], VertexNormal)
assert result[0] == (0.0, 0.0, 0.0)
def test_parse_vertex_param():
result = list(Parser(io.StringIO("vp 0 0 0")))
assert len(result) == 1
assert isinstance(result[0], VertexParameter)
assert result[0] == (0.0, 0.0, 0.0)
def test_parse_unknown():
with pytest.raises(ValueError):
list(Parser(io.StringIO("foo")))
def test_parse_ignored():
with warnings.catch_warnings():
warnings.simplefilter('error')
with pytest.raises(UnsupportedCommand):
list(Parser(io.StringIO("p 0")))
def test_parse_continuation():
result = list(Parser(io.StringIO("v 0\\\n0 0")))
assert len(result) == 1
assert isinstance(result[0], Vertex)
assert result[0] == (0.0, 0.0, 0.0, 1.0)
def test_context_parser():
with mock.patch("io.open") as open:
with Parser("foo.obj") as parser:
assert isinstance(parser, Parser)
def test_close_parser():
with mock.patch("io.open") as open:
open.return_value = mock.MagicMock()
Parser("foo.obj").close()
open.return_value.close.assert_called_once_with()
def test_parse_file():
with mock.patch("io.open") as open:
Parser("foo.obj")
open.assert_called_with("foo.obj", "r", encoding="ascii")
Parser(b"foo.obj")
open.assert_called_with("foo.obj", "r", encoding="ascii")
def test_parse_material_bad():
with pytest.raises(ValueError):
list(Parser(io.StringIO("usemtl")))
def test_parse_material():
result = list(Parser(io.StringIO("usemtl brick")))
assert len(result) == 1
assert isinstance(result[0], Material)
assert result[0] == "brick"
def test_parse_group_empty():
result = list(Parser(io.StringIO("g")))
assert len(result) == 1
assert isinstance(result[0], Group)
assert result[0].names == {"default"}
def test_parse_group():
result = list(Parser(io.StringIO("g group1 group2")))
assert len(result) == 1
assert isinstance(result[0], Group)
assert result[0].names == {"group1", "group2"}
def test_parse_face_indexes_bad2():
with pytest.raises(ValueError):
list(Parser(io.StringIO("f 1")))
