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124 lines
2.7 KiB
Python
124 lines
2.7 KiB
Python
"""Xonsh AST tests."""
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import ast as pyast
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from xonsh import ast
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from xonsh.ast import Tuple, Name, Store, min_line, Call, BinOp, pdump
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import pytest
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from tools import check_parse, nodes_equal
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@pytest.fixture(autouse=True)
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def xonsh_execer_autouse(xonsh_execer):
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return xonsh_execer
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def test_gather_names_name():
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node = Name(id="y", ctx=Store())
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exp = {"y"}
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obs = ast.gather_names(node)
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assert exp == obs
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def test_gather_names_tuple():
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node = Tuple(elts=[Name(id="y", ctx=Store()), Name(id="z", ctx=Store())])
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exp = {"y", "z"}
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obs = ast.gather_names(node)
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assert exp == obs
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def test_gather_load_store_names_tuple():
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node = Tuple(elts=[Name(id="y", ctx=Store()), Name(id="z", ctx=Store())])
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lexp = set()
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sexp = {"y", "z"}
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lobs, sobs = ast.gather_load_store_names(node)
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assert lexp == lobs
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assert sexp == sobs
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@pytest.mark.parametrize(
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"line1",
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[
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# this second line wil be transformed into a subprocess call
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"x = 1",
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# this second line wil be transformed into a subprocess call even though
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# ls is defined.
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"ls = 1",
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# the second line wil be transformed still even though l exists.
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"l = 1",
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],
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)
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def test_multilline_num(line1):
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code = line1 + "\nls -l\n"
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tree = check_parse(code)
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lsnode = tree.body[1]
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assert 2 == min_line(lsnode)
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assert isinstance(lsnode.value, Call)
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def test_multilline_no_transform():
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# no subprocess transformations happen here since all variables are known
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code = "ls = 1\nl = 1\nls -l\n"
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tree = check_parse(code)
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lsnode = tree.body[2]
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assert 3 == min_line(lsnode)
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assert isinstance(lsnode.value, BinOp)
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@pytest.mark.parametrize(
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"inp",
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[
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"""def f():
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if True:
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pass
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""",
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"""def f(x):
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if x:
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pass
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""",
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"""def f(*args):
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if not args:
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pass
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""",
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"""def f(*, y):
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if y:
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pass
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""",
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"""def f(**kwargs):
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if not kwargs:
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pass
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""",
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"""def f(k=42):
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if not k:
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pass
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""",
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"""def f(k=10, *, a, b=1, **kw):
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if not kw and b:
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pass
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""",
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"""import os
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path = '/path/to/wakka'
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paths = []
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for root, dirs, files in os.walk(path):
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paths.extend(os.path.join(root, d) for d in dirs)
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paths.extend(os.path.join(root, f) for f in files)
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""",
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"""lambda x: x + 1
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""",
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],
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)
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def test_unmodified(inp):
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# Context sensitive parsing should not modify AST
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exp = pyast.parse(inp)
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obs = check_parse(inp)
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assert nodes_equal(exp, obs)
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@pytest.mark.parametrize("test_input", [
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"echo; echo && echo\n",
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"echo; echo && echo a\n",
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"true && false && true\n",
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])
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def test_whitespace_subproc(test_input):
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assert check_parse(test_input)
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