Merge part of the trunk changes into the p3yk branch. This merges from 43030

(branch-creation time) up to 43067. 43068 and 43069 contain a little
swapping action between re.py and sre.py, and this mightily confuses svn
merge, so later changes are going in separately.

This merge should break no additional tests.

The last-merged revision is going in a 'last_merge' property on '.' (the
branch directory.) Arbitrarily chosen, really; if there's a BCP for this, I
couldn't find it, but we can easily change it afterwards ;)

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()