# 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" "if __module_name__ in sys.modules:\n" " mod_name = sys.modules[__module_name__].__module_name__\n" "# Check nested operation\n" "import runpy\n" "nested = runpy._run_module_code('x=1\\n', mod_name='',\n" " alter_sys=True)\n" ) def test_run_module_code(self): initial = object() run_name = "" mod_name = "" 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, run_name, mod_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 run_name) self.failUnless(d2["run_name"] is run_name) self.failUnless(d2["__module_name__"] is mod_name) self.failUnless(d2["mod_name"] is mod_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(mod_name not in sys.modules) self.failUnless(run_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["__module_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()