"""Tests that the pytest plugin properly provides the "fs" fixture"""
import os
import tempfile
from pyfakefs.fake_filesystem import OSType
from pyfakefs.fake_filesystem_unittest import Pause
import pyfakefs.pytest_tests.io
def test_fs_fixture(fs):
fs.create_file("/var/data/xx1.txt")
assert os.path.exists("/var/data/xx1.txt")
def test_fs_fixture_alias(fake_filesystem):
fake_filesystem.create_file("/var/data/xx1.txt")
assert os.path.exists("/var/data/xx1.txt")
def test_both_fixtures(fs, fake_filesystem):
fake_filesystem.create_file("/var/data/xx1.txt")
fs.create_file("/var/data/xx2.txt")
assert os.path.exists("/var/data/xx1.txt")
assert os.path.exists("/var/data/xx2.txt")
assert fs == fake_filesystem
def test_pause_resume(fs):
fake_temp_file = tempfile.NamedTemporaryFile()
assert fs.exists(fake_temp_file.name)
assert os.path.exists(fake_temp_file.name)
fs.pause()
assert fs.exists(fake_temp_file.name)
assert not os.path.exists(fake_temp_file.name)
real_temp_file = tempfile.NamedTemporaryFile()
assert not fs.exists(real_temp_file.name)
assert os.path.exists(real_temp_file.name)
fs.resume()
assert not os.path.exists(real_temp_file.name)
assert os.path.exists(fake_temp_file.name)
def test_pause_resume_contextmanager(fs):
fake_temp_file = tempfile.NamedTemporaryFile()
assert fs.exists(fake_temp_file.name)
assert os.path.exists(fake_temp_file.name)
with Pause(fs):
assert fs.exists(fake_temp_file.name)
assert not os.path.exists(fake_temp_file.name)
real_temp_file = tempfile.NamedTemporaryFile()
assert not fs.exists(real_temp_file.name)
assert os.path.exists(real_temp_file.name)
assert not os.path.exists(real_temp_file.name)
assert os.path.exists(fake_temp_file.name)
def test_use_own_io_module(fs):
filepath = "foo.txt"
with open(filepath, "w") as f:
f.write("bar")
stream = pyfakefs.pytest_tests.io.InputStream(filepath)
assert stream.read() == "bar"
def test_switch_to_windows(fs):
fs.os = OSType.WINDOWS
assert os.path.exists(tempfile.gettempdir())
def test_switch_to_linux(fs):
fs.os = OSType.LINUX
assert os.path.exists(tempfile.gettempdir())
def test_switch_to_macos(fs):
fs.os = OSType.MACOS
assert os.path.exists(tempfile.gettempdir())
def test_updatecache_problem(fs):
# regression test for #1096
filename = r"C:\source_file"
fs.create_file(filename)
with open(filename):
assert True
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