diff options
Diffstat (limited to 'Lib/test/test_runpy.py')
| -rw-r--r-- | Lib/test/test_runpy.py | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/Lib/test/test_runpy.py b/Lib/test/test_runpy.py new file mode 100644 index 0000000..88e9900 --- /dev/null +++ b/Lib/test/test_runpy.py @@ -0,0 +1,172 @@ +# 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, 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, 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, ex: + if verbose: print ex # Persist with cleaning up + try: + os.rmdir(top) + if verbose: print " Removed package tree" + except OSError, 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() |