# Path: penman/tree.py
# class Tree:
#     def __init__(self,
#                  node: Node,
#                  metadata: Mapping[str, str] = None):
#     def __eq__(self, other) -> bool:
#     def __repr__(self) -> str:
#     def __str__(self) -> str:
#     def nodes(self) -> List[Node]:
#     def walk(self) -> Iterator[_Step]:
#     def reset_variables(self, fmt='{prefix}{j}') -> None:
# def _format(node: Node, level: int) -> str:
# def _format_branch(branch: Branch, level: int) -> str:
# def _nodes(node: Node) -> List[Node]:
# def _walk(node: Node, path: Tuple[int, ...]) -> Iterator[_Step]:
# def _default_variable_prefix(concept: Any) -> Variable:
# def _map_vars(node, varmap):
# def is_atomic(x) -> bool:


import pytest
from penman import tree
        assert _vars(t) == ['a', 'b']

        t = tree.Tree(reentrant)
        assert _vars(t) == ['a', 'b', 'g']

        t.reset_variables(fmt='a{i}')
        assert _vars(t) == ['a0', 'a1', 'a2']
        assert t == (
            'a0', [('/', 'alpha'),
                   (':ARG0', ('a1', [('/', 'beta')])),
                   (':ARG1', ('a2', [('/', 'gamma'),
                                     (':ARG0', 'a1')]))])

        t.reset_variables()
        assert _vars(t) == ['a', 'b', 'g']

        t = tree.Tree(var_instance)
        assert _vars(t) == ['a', 'b']

        t.reset_variables(fmt='a{i}')
        assert _vars(t) == ['a0', 'a1']
        assert t == (
            'a0', [('/', 'alpha'),
                   (':ARG0', ('a1', [('/', 'b')]))])

        t.reset_variables()
        assert _vars(t) == ['a', 'b']


def test_is_atomic():

# Path: penman/tree.py
# class Tree:
#     def __init__(self,
#                  node: Node,
#                  metadata: Mapping[str, str] = None):
#     def __eq__(self, other) -> bool:
#     def __repr__(self) -> str:
#     def __str__(self) -> str:
#     def nodes(self) -> List[Node]:
#     def walk(self) -> Iterator[_Step]:
#     def reset_variables(self, fmt='{prefix}{j}') -> None:
# def _format(node: Node, level: int) -> str:
# def _format_branch(branch: Branch, level: int) -> str:
# def _nodes(node: Node) -> List[Node]:
# def _walk(node: Node, path: Tuple[int, ...]) -> Iterator[_Step]:
# def _default_variable_prefix(concept: Any) -> Variable:
# def _map_vars(node, varmap):
# def is_atomic(x) -> bool:


# Path: tests/test_tree.py
import pytest
from penman import tree

        assert _vars(t) == ['a', 'b']

        t = tree.Tree(reentrant)
        assert _vars(t) == ['a', 'b', 'g']

        t.reset_variables(fmt='a{i}')
        assert _vars(t) == ['a0', 'a1', 'a2']
        assert t == (
            'a0', [('/', 'alpha'),
                   (':ARG0', ('a1', [('/', 'beta')])),
                   (':ARG1', ('a2', [('/', 'gamma'),
                                     (':ARG0', 'a1')]))])

        t.reset_variables()
        assert _vars(t) == ['a', 'b', 'g']

        t = tree.Tree(var_instance)
        assert _vars(t) == ['a', 'b']

        t.reset_variables(fmt='a{i}')
        assert _vars(t) == ['a0', 'a1']
        assert t == (
            'a0', [('/', 'alpha'),
                   (':ARG0', ('a1', [('/', 'b')]))])

        t.reset_variables()
        assert _vars(t) == ['a', 'b']


def test_is_atomic():

    assert tree.is_atomic('a')