def test_parse_simple_edge():
s = "a -> b"
result = parse(s)
assert result is not None
assert "a" in result.nodes
assert list(result.direct_successors_of("a")) == ["b"]
assert list(result.direct_successors_of("b")) == []
def test_parse_simple_node_description_with_line_continuation_in_desc():
s = "\n\nparser = `goyacc |\nparser.y`"
result = parse(s)
assert result is not None
assert "parser" in result.nodes
assert result.nodes["parser"] == "goyacc parser.y"
def test_parse_simple_node_description_with_blank_lines():
s = "\n\nparser = `goyacc parser.y`"
result = parse(s)
assert result is not None
assert "parser" in result.nodes
assert result.nodes["parser"] == "goyacc parser.y"
def test_parse_simple_node_description():
s = "parser = `goyacc parser.y`"
result = parse(s)
assert result is not None
assert "parser" in result.nodes
assert result.nodes["parser"] == "goyacc parser.y"
def test_parse_simple_edge_with_newline():
s = "a -> b\n"
result = parse(s)
assert result is not None