| # 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 _add_pkg_dir(self, pkg_dir): |
| os.mkdir(pkg_dir) |
| pkg_fname = os.path.join(pkg_dir, "__init__"+os.extsep+"py") |
| pkg_file = open(pkg_fname, "w") |
| pkg_file.close() |
| return pkg_fname |
| |
| def _make_pkg(self, source, depth): |
| pkg_name = "__runpy_pkg__" |
| 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) |
| pkg_fname = self._add_pkg_dir(sub_dir) |
| if verbose: print " Next level in:", sub_dir |
| 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("x" in d1) |
| 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("x" in d2) |
| 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 _add_relative_modules(self, base_dir, depth): |
| if depth <= 1: |
| raise ValueError("Relative module test needs depth > 1") |
| pkg_name = "__runpy_pkg__" |
| module_dir = base_dir |
| for i in range(depth): |
| parent_dir = module_dir |
| module_dir = os.path.join(module_dir, pkg_name) |
| # Add sibling module |
| sibling_fname = os.path.join(module_dir, "sibling"+os.extsep+"py") |
| sibling_file = open(sibling_fname, "w") |
| sibling_file.close() |
| if verbose: print " Added sibling module:", sibling_fname |
| # Add nephew module |
| uncle_dir = os.path.join(parent_dir, "uncle") |
| self._add_pkg_dir(uncle_dir) |
| if verbose: print " Added uncle package:", uncle_dir |
| cousin_dir = os.path.join(uncle_dir, "cousin") |
| self._add_pkg_dir(cousin_dir) |
| if verbose: print " Added cousin package:", cousin_dir |
| nephew_fname = os.path.join(cousin_dir, "nephew"+os.extsep+"py") |
| nephew_file = open(nephew_fname, "w") |
| nephew_file.close() |
| if verbose: print " Added nephew module:", nephew_fname |
| |
| def _check_relative_imports(self, depth, run_name=None): |
| contents = """\ |
| from __future__ import absolute_import |
| from . import sibling |
| from ..uncle.cousin import nephew |
| """ |
| pkg_dir, mod_fname, mod_name = ( |
| self._make_pkg(contents, depth)) |
| try: |
| self._add_relative_modules(pkg_dir, depth) |
| if verbose: print "Running from source:", mod_name |
| d1 = run_module(mod_name) # Read from source |
| self.failUnless("sibling" in d1) |
| self.failUnless("nephew" in d1) |
| 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("sibling" in d2) |
| self.failUnless("nephew" in d2) |
| 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_explicit_relative_import(self): |
| for depth in range(2, 5): |
| if verbose: print "Testing relative imports at depth:", depth |
| self._check_relative_imports(depth) |
| |
| |
| def test_main(): |
| run_unittest(RunModuleCodeTest) |
| run_unittest(RunModuleTest) |
| |
| if __name__ == "__main__": |
| test_main() |