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import os
from os.path import join
from unittest.mock import patch
from alembic import util
from alembic.testing import combinations
from alembic.testing import expect_raises_message
from alembic.testing.fixtures import TestBase
class TestHelpers(TestBase):
def common(self, cb, is_posix=True):
with patch("alembic.util.editor.check_call") as check_call, patch(
"alembic.util.editor.exists"
) as exists, patch(
"alembic.util.editor.is_posix",
new=is_posix,
), patch(
"os.pathsep", new=":" if is_posix else ";"
):
cb(check_call, exists)
@combinations((True,), (False,))
def test_edit_with_user_editor(self, posix):
def go(check_call, exists):
test_environ = {"EDITOR": "myvim", "PATH": "/usr/bin"}
executable = join("/usr/bin", "myvim")
if not posix:
executable += ".exe"
exists.side_effect = lambda fname: fname == executable
util.open_in_editor("myfile", test_environ)
check_call.assert_called_with([executable, "myfile"])
self.common(go, posix)
@combinations(("EDITOR",), ("VISUAL",))
def test_edit_with_user_editor_exists(self, key):
def go(check_call, exists):
test_environ = {key: "myvim", "PATH": "/usr/bin"}
exists.side_effect = lambda fname: fname == "myvim"
util.open_in_editor("myfile", test_environ)
check_call.assert_called_with(["myvim", "myfile"])
self.common(go)
@combinations((True,), (False,))
def test_edit_with_user_editor_precedence(self, with_path):
def go(check_call, exists):
test_environ = {
"EDITOR": "myvim",
"VISUAL": "myvisual",
"PATH": "/usr/bin",
}
exes = ["myvim", "myvisual"]
if with_path:
exes = [join("/usr/bin", n) for n in exes]
exists.side_effect = lambda fname: fname in exes
util.open_in_editor("myfile", test_environ)
check_call.assert_called_with([exes[0], "myfile"])
self.common(go)
def test_edit_with_user_editor_abs(self):
def go(check_call, exists):
test_environ = {"EDITOR": "/foo/myvim", "PATH": "/usr/bin"}
exists.side_effect = lambda fname: fname == "/usr/bin/foo/myvim"
with expect_raises_message(util.CommandError, "EDITOR"):
util.open_in_editor("myfile", test_environ)
self.common(go)
def test_edit_with_default_editor(self):
def go(check_call, exists):
test_environ = {"PATH": os.pathsep.join(["/usr/bin", "/bin"])}
executable = join("/bin", "vim")
exists.side_effect = lambda fname: fname == executable
util.open_in_editor("myfile", test_environ)
check_call.assert_called_with([executable, "myfile"])
self.common(go)
def test_edit_with_default_editor_windows(self):
def go(check_call, exists):
test_environ = {
"PATH": os.pathsep.join(
[r"C:\Windows\System32", r"C:\Users\user\bin"]
)
}
executable = join(r"C:\Users\user\bin", "notepad.exe")
exists.side_effect = lambda fname: fname == executable
util.open_in_editor("myfile", test_environ)
check_call.assert_called_with([executable, "myfile"])
self.common(go, False)
def test_edit_with_missing_editor(self):
def go(check_call, exists):
test_environ = {}
exists.return_value = False
with expect_raises_message(util.CommandError, "EDITOR"):
util.open_in_editor("myfile", test_environ)
self.common(go)
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