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# Test the runpy module
import unittest
import os
import os.path
import sys
import tempfile
from test.test_support import verbose, run_unittest
from runpy import _run_module_code, run_module
# Set up the test code and expected results
class RunModuleCodeTest(unittest.TestCase):
expected_result = ["Top level assignment", "Lower level reference"]
test_source = (
"# Check basic code execution\n"
"result = ['Top level assignment']\n"
"def f():\n"
" result.append('Lower level reference')\n"
"f()\n"
"# Check the sys module\n"
"import sys\n"
"run_argv0 = sys.argv[0]\n"
"if __name__ in sys.modules:\n"
" run_name = sys.modules[__name__].__name__\n"
"# Check nested operation\n"
"import runpy\n"
"nested = runpy._run_module_code('x=1\\n', mod_name='<run>',\n"
" alter_sys=True)\n"
)
def test_run_module_code(self):
initial = object()
name = "<Nonsense>"
file = "Some other nonsense"
loader = "Now you're just being silly"
d1 = dict(initial=initial)
saved_argv0 = sys.argv[0]
d2 = _run_module_code(self.test_source,
d1,
name,
file,
loader,
True)
self.failUnless("result" not in d1)
self.failUnless(d2["initial"] is initial)
self.failUnless(d2["result"] == self.expected_result)
self.failUnless(d2["nested"]["x"] == 1)
self.failUnless(d2["__name__"] is name)
self.failUnless(d2["run_name"] is name)
self.failUnless(d2["__file__"] is file)
self.failUnless(d2["run_argv0"] is file)
self.failUnless(d2["__loader__"] is loader)
self.failUnless(sys.argv[0] is saved_argv0)
self.failUnless(name not in sys.modules)
def test_run_module_code_defaults(self):
saved_argv0 = sys.argv[0]
d = _run_module_code(self.test_source)
self.failUnless(d["result"] == self.expected_result)
self.failUnless(d["__name__"] is None)
self.failUnless(d["__file__"] is None)
self.failUnless(d["__loader__"] is None)
self.failUnless(d["run_argv0"] is saved_argv0)
self.failUnless("run_name" not in d)
self.failUnless(sys.argv[0] is saved_argv0)
class RunModuleTest(unittest.TestCase):
def expect_import_error(self, mod_name):
try:
run_module(mod_name)
except ImportError:
pass
else:
self.fail("Expected import error for " + mod_name)
def test_invalid_names(self):
self.expect_import_error("sys")
self.expect_import_error("sys.imp.eric")
self.expect_import_error("os.path.half")
self.expect_import_error("a.bee")
self.expect_import_error(".howard")
self.expect_import_error("..eaten")
def test_library_module(self):
run_module("runpy")
def _make_pkg(self, source, depth):
pkg_name = "__runpy_pkg__"
init_fname = "__init__"+os.extsep+"py"
test_fname = "runpy_test"+os.extsep+"py"
pkg_dir = sub_dir = tempfile.mkdtemp()
if verbose: print(" Package tree in:", sub_dir)
sys.path.insert(0, pkg_dir)
if verbose: print(" Updated sys.path:", sys.path[0])
for i in range(depth):
sub_dir = os.path.join(sub_dir, pkg_name)
os.mkdir(sub_dir)
if verbose: print(" Next level in:", sub_dir)
pkg_fname = os.path.join(sub_dir, init_fname)
pkg_file = open(pkg_fname, "w")
pkg_file.close()
if verbose: print(" Created:", pkg_fname)
mod_fname = os.path.join(sub_dir, test_fname)
mod_file = open(mod_fname, "w")
mod_file.write(source)
mod_file.close()
if verbose: print(" Created:", mod_fname)
mod_name = (pkg_name+".")*depth + "runpy_test"
return pkg_dir, mod_fname, mod_name
def _del_pkg(self, top, depth, mod_name):
for i in range(depth+1): # Don't forget the module itself
parts = mod_name.rsplit(".", i)
entry = parts[0]
try:
del sys.modules[entry]
except KeyError as ex:
if verbose: print(ex) # Persist with cleaning up
if verbose: print(" Removed sys.modules entries")
del sys.path[0]
if verbose: print(" Removed sys.path entry")
for root, dirs, files in os.walk(top, topdown=False):
for name in files:
try:
os.remove(os.path.join(root, name))
except OSError as ex:
if verbose: print(ex) # Persist with cleaning up
for name in dirs:
fullname = os.path.join(root, name)
try:
os.rmdir(fullname)
except OSError as ex:
if verbose: print(ex) # Persist with cleaning up
try:
os.rmdir(top)
if verbose: print(" Removed package tree")
except OSError as ex:
if verbose: print(ex) # Persist with cleaning up
def _check_module(self, depth):
pkg_dir, mod_fname, mod_name = (
self._make_pkg("x=1\n", depth))
try:
if verbose: print("Running from source:", mod_name)
d1 = run_module(mod_name) # Read from source
self.failUnless(d1["x"] == 1)
del d1 # Ensure __loader__ entry doesn't keep file open
__import__(mod_name)
os.remove(mod_fname)
if verbose: print("Running from compiled:", mod_name)
d2 = run_module(mod_name) # Read from bytecode
self.failUnless(d2["x"] == 1)
del d2 # Ensure __loader__ entry doesn't keep file open
finally:
self._del_pkg(pkg_dir, depth, mod_name)
if verbose: print("Module executed successfully")
def test_run_module(self):
for depth in range(4):
if verbose: print("Testing package depth:", depth)
self._check_module(depth)
def test_main():
run_unittest(RunModuleCodeTest)
run_unittest(RunModuleTest)
if __name__ == "__main__":
test_main()
|
