Python Tree.find_first_token示例

示例#1

def test_tree_find_first_token_none():
    """
    Ensures Tree.find_first_token can find the correct Token
    """
    expected = Tree('assignment', [])
    tree = Tree('start', [Tree('block', [Tree('line', [expected])], expected)])
    assert tree.find_first_token() is None

示例#2

def test_tree_find_first_token_none():
    """
    Ensures Tree.find_first_token can find the correct Token
    """
    expected = Tree("assignment", [])
    tree = Tree("start", [Tree("block", [Tree("line", [expected])], expected)])
    assert tree.find_first_token() is None

示例#3

def test_tree_find_first_token_end():
    """
    Ensures Tree.find_first_token can find the correct Token
    """
    t2 = Token('X', 'x')
    e1 = Tree('assignment', [])
    e2 = Tree('assignment', [t2])
    tree = Tree('start', [Tree('block', [Tree('line', [e1])]), e2])
    assert tree.find_first_token() == t2

示例#4

def test_tree_find_first_token_end():
    """
    Ensures Tree.find_first_token can find the correct Token
    """
    t2 = Token("X", "x")
    e1 = Tree("assignment", [])
    e2 = Tree("assignment", [t2])
    tree = Tree("start", [Tree("block", [Tree("line", [e1])]), e2])
    assert tree.find_first_token() == t2

示例#5

def test_tree_find_first_token_middle():
    """
    Ensures Tree.find_first_token can find the correct Token
    """
    t1 = Token('X1', 'x1')
    t2 = Token('X2', 'x2')
    e1 = Tree('assignment', [t1])
    e2 = Tree('assignment', [t2])
    tree = Tree('start', [Tree('block', [Tree('line', [e1])]), e2])
    assert tree.find_first_token() == t1

示例#6

def test_tree_find_first_token_reverse():
    """
    Ensures Tree.find_first_token can find the correct token in reverse order
    """
    t1 = Token('X1', 'x1')
    t2 = Token('X2', 'x2')
    e1 = Tree('assignment', [t1])
    e2 = Tree('assignment', [t2])
    tree = Tree('start', [Tree('block', [Tree('line', [e1])]), e2])
    assert tree.find_first_token(reverse=True) == t2

示例#7

def test_tree_find_first_token_middle():
    """
    Ensures Tree.find_first_token can find the correct Token
    """
    t1 = Token("X1", "x1")
    t2 = Token("X2", "x2")
    e1 = Tree("assignment", [t1])
    e2 = Tree("assignment", [t2])
    tree = Tree("start", [Tree("block", [Tree("line", [e1])]), e2])
    assert tree.find_first_token() == t1

示例#8

def test_tree_find_first_token_reverse():
    """
    Ensures Tree.find_first_token can find the correct token in reverse order
    """
    t1 = Token("X1", "x1")
    t2 = Token("X2", "x2")
    e1 = Tree("assignment", [t1])
    e2 = Tree("assignment", [t2])
    tree = Tree("start", [Tree("block", [Tree("line", [e1])]), e2])
    assert tree.find_first_token(reverse=True) == t2