| 1 | # Test the runpy module
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| 2 | import unittest
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| 3 | import os
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| 4 | import os.path
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| 5 | import sys
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| 6 | import re
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| 7 | import tempfile
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| 8 | from test.test_support import verbose, run_unittest, forget
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| 9 | from test.script_helper import (temp_dir, make_script, compile_script,
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| 10 | make_pkg, make_zip_script, make_zip_pkg)
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| 11 |
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| 12 |
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| 13 | from runpy import _run_code, _run_module_code, run_module, run_path
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| 14 | # Note: This module can't safely test _run_module_as_main as it
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| 15 | # runs its tests in the current process, which would mess with the
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| 16 | # real __main__ module (usually test.regrtest)
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| 17 | # See test_cmd_line_script for a test that executes that code path
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| 18 |
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| 19 | # Set up the test code and expected results
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| 20 |
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| 21 | class RunModuleCodeTest(unittest.TestCase):
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| 22 | """Unit tests for runpy._run_code and runpy._run_module_code"""
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| 23 |
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| 24 | expected_result = ["Top level assignment", "Lower level reference"]
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| 25 | test_source = (
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| 26 | "# Check basic code execution\n"
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| 27 | "result = ['Top level assignment']\n"
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| 28 | "def f():\n"
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| 29 | " result.append('Lower level reference')\n"
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| 30 | "f()\n"
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| 31 | "# Check the sys module\n"
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| 32 | "import sys\n"
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| 33 | "run_argv0 = sys.argv[0]\n"
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| 34 | "run_name_in_sys_modules = __name__ in sys.modules\n"
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| 35 | "if run_name_in_sys_modules:\n"
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| 36 | " module_in_sys_modules = globals() is sys.modules[__name__].__dict__\n"
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| 37 | "# Check nested operation\n"
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| 38 | "import runpy\n"
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| 39 | "nested = runpy._run_module_code('x=1\\n', mod_name='<run>')\n"
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| 40 | )
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| 41 |
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| 42 | def test_run_code(self):
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| 43 | saved_argv0 = sys.argv[0]
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| 44 | d = _run_code(self.test_source, {})
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| 45 | self.assertEqual(d["result"], self.expected_result)
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| 46 | self.assertIs(d["__name__"], None)
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| 47 | self.assertIs(d["__file__"], None)
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| 48 | self.assertIs(d["__loader__"], None)
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| 49 | self.assertIs(d["__package__"], None)
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| 50 | self.assertIs(d["run_argv0"], saved_argv0)
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| 51 | self.assertNotIn("run_name", d)
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| 52 | self.assertIs(sys.argv[0], saved_argv0)
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| 53 |
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| 54 | def test_run_module_code(self):
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| 55 | initial = object()
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| 56 | name = "<Nonsense>"
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| 57 | file = "Some other nonsense"
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| 58 | loader = "Now you're just being silly"
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| 59 | package = '' # Treat as a top level module
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| 60 | d1 = dict(initial=initial)
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| 61 | saved_argv0 = sys.argv[0]
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| 62 | d2 = _run_module_code(self.test_source,
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| 63 | d1,
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| 64 | name,
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| 65 | file,
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| 66 | loader,
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| 67 | package)
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| 68 | self.assertNotIn("result", d1)
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| 69 | self.assertIs(d2["initial"], initial)
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| 70 | self.assertEqual(d2["result"], self.expected_result)
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| 71 | self.assertEqual(d2["nested"]["x"], 1)
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| 72 | self.assertIs(d2["__name__"], name)
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| 73 | self.assertTrue(d2["run_name_in_sys_modules"])
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| 74 | self.assertTrue(d2["module_in_sys_modules"])
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| 75 | self.assertIs(d2["__file__"], file)
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| 76 | self.assertIs(d2["run_argv0"], file)
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| 77 | self.assertIs(d2["__loader__"], loader)
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| 78 | self.assertIs(d2["__package__"], package)
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| 79 | self.assertIs(sys.argv[0], saved_argv0)
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| 80 | self.assertNotIn(name, sys.modules)
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| 81 |
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| 82 |
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| 83 | class RunModuleTest(unittest.TestCase):
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| 84 | """Unit tests for runpy.run_module"""
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| 85 |
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| 86 | def expect_import_error(self, mod_name):
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| 87 | try:
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| 88 | run_module(mod_name)
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| 89 | except ImportError:
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| 90 | pass
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| 91 | else:
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| 92 | self.fail("Expected import error for " + mod_name)
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| 93 |
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| 94 | def test_invalid_names(self):
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| 95 | # Builtin module
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| 96 | self.expect_import_error("sys")
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| 97 | # Non-existent modules
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| 98 | self.expect_import_error("sys.imp.eric")
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| 99 | self.expect_import_error("os.path.half")
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| 100 | self.expect_import_error("a.bee")
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| 101 | self.expect_import_error(".howard")
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| 102 | self.expect_import_error("..eaten")
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| 103 | # Package without __main__.py
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| 104 | self.expect_import_error("multiprocessing")
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| 105 |
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| 106 | def test_library_module(self):
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| 107 | run_module("runpy")
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| 108 |
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| 109 | def _add_pkg_dir(self, pkg_dir):
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| 110 | os.mkdir(pkg_dir)
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| 111 | pkg_fname = os.path.join(pkg_dir, "__init__"+os.extsep+"py")
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| 112 | pkg_file = open(pkg_fname, "w")
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| 113 | pkg_file.close()
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| 114 | return pkg_fname
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| 115 |
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| 116 | def _make_pkg(self, source, depth, mod_base="runpy_test"):
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| 117 | pkg_name = "__runpy_pkg__"
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| 118 | test_fname = mod_base+os.extsep+"py"
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| 119 | pkg_dir = sub_dir = tempfile.mkdtemp()
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| 120 | if verbose: print " Package tree in:", sub_dir
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| 121 | sys.path.insert(0, pkg_dir)
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| 122 | if verbose: print " Updated sys.path:", sys.path[0]
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| 123 | for i in range(depth):
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| 124 | sub_dir = os.path.join(sub_dir, pkg_name)
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| 125 | pkg_fname = self._add_pkg_dir(sub_dir)
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| 126 | if verbose: print " Next level in:", sub_dir
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| 127 | if verbose: print " Created:", pkg_fname
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| 128 | mod_fname = os.path.join(sub_dir, test_fname)
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| 129 | mod_file = open(mod_fname, "w")
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| 130 | mod_file.write(source)
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| 131 | mod_file.close()
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| 132 | if verbose: print " Created:", mod_fname
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| 133 | mod_name = (pkg_name+".")*depth + mod_base
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| 134 | return pkg_dir, mod_fname, mod_name
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| 135 |
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| 136 | def _del_pkg(self, top, depth, mod_name):
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| 137 | for entry in list(sys.modules):
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| 138 | if entry.startswith("__runpy_pkg__"):
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| 139 | del sys.modules[entry]
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| 140 | if verbose: print " Removed sys.modules entries"
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| 141 | del sys.path[0]
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| 142 | if verbose: print " Removed sys.path entry"
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| 143 | for root, dirs, files in os.walk(top, topdown=False):
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| 144 | for name in files:
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| 145 | try:
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| 146 | os.remove(os.path.join(root, name))
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| 147 | except OSError, ex:
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| 148 | if verbose: print ex # Persist with cleaning up
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| 149 | for name in dirs:
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| 150 | fullname = os.path.join(root, name)
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| 151 | try:
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| 152 | os.rmdir(fullname)
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| 153 | except OSError, ex:
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| 154 | if verbose: print ex # Persist with cleaning up
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| 155 | try:
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| 156 | os.rmdir(top)
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| 157 | if verbose: print " Removed package tree"
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| 158 | except OSError, ex:
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| 159 | if verbose: print ex # Persist with cleaning up
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| 160 |
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| 161 | def _check_module(self, depth):
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| 162 | pkg_dir, mod_fname, mod_name = (
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| 163 | self._make_pkg("x=1\n", depth))
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| 164 | forget(mod_name)
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| 165 | try:
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| 166 | if verbose: print "Running from source:", mod_name
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| 167 | d1 = run_module(mod_name) # Read from source
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| 168 | self.assertIn("x", d1)
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| 169 | self.assertTrue(d1["x"] == 1)
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| 170 | del d1 # Ensure __loader__ entry doesn't keep file open
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| 171 | __import__(mod_name)
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| 172 | os.remove(mod_fname)
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| 173 | if not sys.dont_write_bytecode:
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| 174 | if verbose: print "Running from compiled:", mod_name
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| 175 | d2 = run_module(mod_name) # Read from bytecode
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| 176 | self.assertIn("x", d2)
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| 177 | self.assertTrue(d2["x"] == 1)
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| 178 | del d2 # Ensure __loader__ entry doesn't keep file open
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| 179 | finally:
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| 180 | self._del_pkg(pkg_dir, depth, mod_name)
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| 181 | if verbose: print "Module executed successfully"
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| 182 |
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| 183 | def _check_package(self, depth):
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| 184 | pkg_dir, mod_fname, mod_name = (
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| 185 | self._make_pkg("x=1\n", depth, "__main__"))
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| 186 | pkg_name, _, _ = mod_name.rpartition(".")
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| 187 | forget(mod_name)
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| 188 | try:
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| 189 | if verbose: print "Running from source:", pkg_name
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| 190 | d1 = run_module(pkg_name) # Read from source
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| 191 | self.assertIn("x", d1)
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| 192 | self.assertTrue(d1["x"] == 1)
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| 193 | del d1 # Ensure __loader__ entry doesn't keep file open
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| 194 | __import__(mod_name)
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| 195 | os.remove(mod_fname)
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| 196 | if not sys.dont_write_bytecode:
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| 197 | if verbose: print "Running from compiled:", pkg_name
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| 198 | d2 = run_module(pkg_name) # Read from bytecode
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| 199 | self.assertIn("x", d2)
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| 200 | self.assertTrue(d2["x"] == 1)
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| 201 | del d2 # Ensure __loader__ entry doesn't keep file open
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| 202 | finally:
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| 203 | self._del_pkg(pkg_dir, depth, pkg_name)
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| 204 | if verbose: print "Package executed successfully"
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| 205 |
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| 206 | def _add_relative_modules(self, base_dir, source, depth):
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| 207 | if depth <= 1:
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| 208 | raise ValueError("Relative module test needs depth > 1")
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| 209 | pkg_name = "__runpy_pkg__"
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| 210 | module_dir = base_dir
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| 211 | for i in range(depth):
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| 212 | parent_dir = module_dir
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| 213 | module_dir = os.path.join(module_dir, pkg_name)
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| 214 | # Add sibling module
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| 215 | sibling_fname = os.path.join(module_dir, "sibling"+os.extsep+"py")
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| 216 | sibling_file = open(sibling_fname, "w")
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| 217 | sibling_file.close()
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| 218 | if verbose: print " Added sibling module:", sibling_fname
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| 219 | # Add nephew module
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| 220 | uncle_dir = os.path.join(parent_dir, "uncle")
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| 221 | self._add_pkg_dir(uncle_dir)
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| 222 | if verbose: print " Added uncle package:", uncle_dir
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| 223 | cousin_dir = os.path.join(uncle_dir, "cousin")
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| 224 | self._add_pkg_dir(cousin_dir)
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| 225 | if verbose: print " Added cousin package:", cousin_dir
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| 226 | nephew_fname = os.path.join(cousin_dir, "nephew"+os.extsep+"py")
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| 227 | nephew_file = open(nephew_fname, "w")
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| 228 | nephew_file.close()
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| 229 | if verbose: print " Added nephew module:", nephew_fname
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| 230 |
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| 231 | def _check_relative_imports(self, depth, run_name=None):
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| 232 | contents = r"""\
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| 233 | from __future__ import absolute_import
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| 234 | from . import sibling
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| 235 | from ..uncle.cousin import nephew
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| 236 | """
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| 237 | pkg_dir, mod_fname, mod_name = (
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| 238 | self._make_pkg(contents, depth))
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| 239 | try:
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| 240 | self._add_relative_modules(pkg_dir, contents, depth)
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| 241 | pkg_name = mod_name.rpartition('.')[0]
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| 242 | if verbose: print "Running from source:", mod_name
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| 243 | d1 = run_module(mod_name, run_name=run_name) # Read from source
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| 244 | self.assertIn("__package__", d1)
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| 245 | self.assertTrue(d1["__package__"] == pkg_name)
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| 246 | self.assertIn("sibling", d1)
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| 247 | self.assertIn("nephew", d1)
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| 248 | del d1 # Ensure __loader__ entry doesn't keep file open
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| 249 | __import__(mod_name)
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| 250 | os.remove(mod_fname)
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| 251 | if not sys.dont_write_bytecode:
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| 252 | if verbose: print "Running from compiled:", mod_name
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| 253 | d2 = run_module(mod_name, run_name=run_name) # Read from bytecode
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| 254 | self.assertIn("__package__", d2)
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| 255 | self.assertTrue(d2["__package__"] == pkg_name)
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| 256 | self.assertIn("sibling", d2)
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| 257 | self.assertIn("nephew", d2)
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| 258 | del d2 # Ensure __loader__ entry doesn't keep file open
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| 259 | finally:
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| 260 | self._del_pkg(pkg_dir, depth, mod_name)
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| 261 | if verbose: print "Module executed successfully"
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| 262 |
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| 263 | def test_run_module(self):
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| 264 | for depth in range(4):
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| 265 | if verbose: print "Testing package depth:", depth
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| 266 | self._check_module(depth)
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| 267 |
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| 268 | def test_run_package(self):
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| 269 | for depth in range(1, 4):
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| 270 | if verbose: print "Testing package depth:", depth
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| 271 | self._check_package(depth)
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| 272 |
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| 273 | def test_explicit_relative_import(self):
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| 274 | for depth in range(2, 5):
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| 275 | if verbose: print "Testing relative imports at depth:", depth
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| 276 | self._check_relative_imports(depth)
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| 277 |
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| 278 | def test_main_relative_import(self):
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| 279 | for depth in range(2, 5):
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| 280 | if verbose: print "Testing main relative imports at depth:", depth
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| 281 | self._check_relative_imports(depth, "__main__")
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| 282 |
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| 283 |
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| 284 | class RunPathTest(unittest.TestCase):
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| 285 | """Unit tests for runpy.run_path"""
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| 286 | # Based on corresponding tests in test_cmd_line_script
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| 287 |
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| 288 | test_source = """\
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| 289 | # Script may be run with optimisation enabled, so don't rely on assert
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| 290 | # statements being executed
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| 291 | def assertEqual(lhs, rhs):
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| 292 | if lhs != rhs:
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| 293 | raise AssertionError('%r != %r' % (lhs, rhs))
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| 294 | def assertIs(lhs, rhs):
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| 295 | if lhs is not rhs:
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| 296 | raise AssertionError('%r is not %r' % (lhs, rhs))
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| 297 | # Check basic code execution
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| 298 | result = ['Top level assignment']
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| 299 | def f():
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| 300 | result.append('Lower level reference')
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| 301 | f()
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| 302 | assertEqual(result, ['Top level assignment', 'Lower level reference'])
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| 303 | # Check the sys module
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| 304 | import sys
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| 305 | assertIs(globals(), sys.modules[__name__].__dict__)
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| 306 | argv0 = sys.argv[0]
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| 307 | """
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| 308 |
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| 309 | def _make_test_script(self, script_dir, script_basename, source=None):
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| 310 | if source is None:
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| 311 | source = self.test_source
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| 312 | return make_script(script_dir, script_basename, source)
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| 313 |
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| 314 | def _check_script(self, script_name, expected_name, expected_file,
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| 315 | expected_argv0, expected_package):
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| 316 | result = run_path(script_name)
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| 317 | self.assertEqual(result["__name__"], expected_name)
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| 318 | self.assertEqual(result["__file__"], expected_file)
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| 319 | self.assertIn("argv0", result)
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| 320 | self.assertEqual(result["argv0"], expected_argv0)
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| 321 | self.assertEqual(result["__package__"], expected_package)
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| 322 |
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| 323 | def _check_import_error(self, script_name, msg):
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| 324 | msg = re.escape(msg)
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| 325 | self.assertRaisesRegexp(ImportError, msg, run_path, script_name)
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| 326 |
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| 327 | def test_basic_script(self):
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| 328 | with temp_dir() as script_dir:
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| 329 | mod_name = 'script'
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| 330 | script_name = self._make_test_script(script_dir, mod_name)
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| 331 | self._check_script(script_name, "<run_path>", script_name,
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| 332 | script_name, None)
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| 333 |
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| 334 | def test_script_compiled(self):
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| 335 | with temp_dir() as script_dir:
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| 336 | mod_name = 'script'
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| 337 | script_name = self._make_test_script(script_dir, mod_name)
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| 338 | compiled_name = compile_script(script_name)
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| 339 | os.remove(script_name)
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| 340 | self._check_script(compiled_name, "<run_path>", compiled_name,
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| 341 | compiled_name, None)
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| 342 |
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| 343 | def test_directory(self):
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| 344 | with temp_dir() as script_dir:
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| 345 | mod_name = '__main__'
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| 346 | script_name = self._make_test_script(script_dir, mod_name)
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| 347 | self._check_script(script_dir, "<run_path>", script_name,
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| 348 | script_dir, '')
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| 349 |
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| 350 | def test_directory_compiled(self):
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| 351 | with temp_dir() as script_dir:
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| 352 | mod_name = '__main__'
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| 353 | script_name = self._make_test_script(script_dir, mod_name)
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| 354 | compiled_name = compile_script(script_name)
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| 355 | os.remove(script_name)
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| 356 | self._check_script(script_dir, "<run_path>", compiled_name,
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| 357 | script_dir, '')
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| 358 |
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| 359 | def test_directory_error(self):
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| 360 | with temp_dir() as script_dir:
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| 361 | mod_name = 'not_main'
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| 362 | script_name = self._make_test_script(script_dir, mod_name)
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| 363 | msg = "can't find '__main__' module in %r" % script_dir
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| 364 | self._check_import_error(script_dir, msg)
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| 365 |
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| 366 | def test_zipfile(self):
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| 367 | with temp_dir() as script_dir:
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| 368 | mod_name = '__main__'
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| 369 | script_name = self._make_test_script(script_dir, mod_name)
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| 370 | zip_name, fname = make_zip_script(script_dir, 'test_zip', script_name)
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| 371 | self._check_script(zip_name, "<run_path>", fname, zip_name, '')
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| 372 |
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| 373 | def test_zipfile_compiled(self):
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| 374 | with temp_dir() as script_dir:
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| 375 | mod_name = '__main__'
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| 376 | script_name = self._make_test_script(script_dir, mod_name)
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| 377 | compiled_name = compile_script(script_name)
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| 378 | zip_name, fname = make_zip_script(script_dir, 'test_zip', compiled_name)
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| 379 | self._check_script(zip_name, "<run_path>", fname, zip_name, '')
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| 380 |
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| 381 | def test_zipfile_error(self):
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| 382 | with temp_dir() as script_dir:
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| 383 | mod_name = 'not_main'
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| 384 | script_name = self._make_test_script(script_dir, mod_name)
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| 385 | zip_name, fname = make_zip_script(script_dir, 'test_zip', script_name)
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| 386 | msg = "can't find '__main__' module in %r" % zip_name
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| 387 | self._check_import_error(zip_name, msg)
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| 388 |
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| 389 | def test_main_recursion_error(self):
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| 390 | with temp_dir() as script_dir, temp_dir() as dummy_dir:
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| 391 | mod_name = '__main__'
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| 392 | source = ("import runpy\n"
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| 393 | "runpy.run_path(%r)\n") % dummy_dir
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| 394 | script_name = self._make_test_script(script_dir, mod_name, source)
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| 395 | zip_name, fname = make_zip_script(script_dir, 'test_zip', script_name)
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| 396 | msg = "recursion depth exceeded"
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| 397 | self.assertRaisesRegexp(RuntimeError, msg, run_path, zip_name)
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| 398 |
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| 399 |
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| 400 |
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| 401 | def test_main():
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| 402 | run_unittest(RunModuleCodeTest, RunModuleTest, RunPathTest)
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| 403 |
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| 404 | if __name__ == "__main__":
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| 405 | test_main()
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