test_ok1/py/test/plugin/pytest_tmpdir.py

"""
    provide temporary directories to test functions and methods. 

example:

    pytest_plugins = "pytest_tmpdir" 

    def test_plugin(tmpdir):
        tmpdir.join("hello").write("hello")

"""
import py

def pytest_funcarg__tmpdir(request):
    name = request.function.__name__ 
    return request.config.mktemp(name, numbered=True)

# ===============================================================================
#
# plugin tests 
#
# ===============================================================================
#

def test_funcarg(testdir):
    from py.__.test.funcargs import FuncargRequest
    item = testdir.getitem("def test_func(tmpdir): pass")
    p = pytest_funcarg__tmpdir(FuncargRequest(item))
    assert p.check()
    bn = p.basename.strip("0123456789-")
    assert bn.endswith("test_func")