Complete rewrite of tests by Walter Dorwald as unittest tests.

Lib/test/test_posixpath.py

-import posixpath
-
-errors = 0
-
-def tester(fn, wantResult):
-    gotResult = eval(fn)
-    if wantResult != gotResult:
-        print "error!"
-        print "evaluated: " + str(fn)
-        print "should be: " + str(wantResult)
-        print " returned: " + str(gotResult)
-        print ""
-        global errors
-        errors = errors + 1
-
-tester('posixpath.splitdrive("/foo/bar")', ('', '/foo/bar'))
-
-tester('posixpath.split("/foo/bar")', ('/foo', 'bar'))
-tester('posixpath.split("/")', ('/', ''))
-tester('posixpath.split("foo")', ('', 'foo'))
-
-tester('posixpath.splitext("foo.ext")', ('foo', '.ext'))
-tester('posixpath.splitext("/foo/foo.ext")', ('/foo/foo', '.ext'))
-tester('posixpath.splitext(".ext")', ('', '.ext'))
-tester('posixpath.splitext("/foo.ext/foo")', ('/foo.ext/foo', ''))
-tester('posixpath.splitext("foo.ext/")', ('foo.ext/', ''))
-tester('posixpath.splitext("")', ('', ''))
-tester('posixpath.splitext("foo.bar.ext")', ('foo.bar', '.ext'))
-
-tester('posixpath.isabs("/")', 1)
-tester('posixpath.isabs("/foo")', 1)
-tester('posixpath.isabs("/foo/bar")', 1)
-tester('posixpath.isabs("foo/bar")', 0)
-
-tester('posixpath.commonprefix(["/home/swenson/spam", "/home/swen/spam"])',
-       "/home/swen")
-tester('posixpath.commonprefix(["/home/swen/spam", "/home/swen/eggs"])',
-       "/home/swen/")
-tester('posixpath.commonprefix(["/home/swen/spam", "/home/swen/spam"])',
-       "/home/swen/spam")
-
-if errors:
-    print str(errors) + " errors."
-else:
-    print "No errors.  Thank your lucky stars."
+import unittest
+from test import test_support
+
+import posixpath, os
+
+class PosixPathTest(unittest.TestCase):
+
+    def assertIs(self, a, b):
+        self.assert_(a is b)
+
+    def test_normcase(self):
+        # Check that normcase() is idempotent
+        p = "FoO/./BaR"
+        p = posixpath.normcase(p)
+        self.assertEqual(p, posixpath.normcase(p))
+
+        self.assertRaises(TypeError, posixpath.normcase)
+
+    def test_join(self):
+        self.assertEqual(posixpath.join("/foo", "bar", "/bar", "baz"), "/bar/baz")
+        self.assertEqual(posixpath.join("/foo", "bar", "baz"), "/foo/bar/baz")
+        self.assertEqual(posixpath.join("/foo/", "bar/", "baz/"), "/foo/bar/baz/")
+
+        self.assertRaises(TypeError, posixpath.join)
+
+    def test_splitdrive(self):
+        self.assertEqual(posixpath.splitdrive("/foo/bar"), ("", "/foo/bar"))
+
+        self.assertRaises(TypeError, posixpath.splitdrive)
+
+    def test_split(self):
+        self.assertEqual(posixpath.split("/foo/bar"), ("/foo", "bar"))
+        self.assertEqual(posixpath.split("/"), ("/", ""))
+        self.assertEqual(posixpath.split("foo"), ("", "foo"))
+        self.assertEqual(posixpath.split("////foo"), ("////", "foo"))
+        self.assertEqual(posixpath.split("//foo//bar"), ("//foo", "bar"))
+
+        self.assertRaises(TypeError, posixpath.split)
+
+    def test_splitext(self):
+        self.assertEqual(posixpath.splitext("foo.ext"), ("foo", ".ext"))
+        self.assertEqual(posixpath.splitext("/foo/foo.ext"), ("/foo/foo", ".ext"))
+        self.assertEqual(posixpath.splitext(".ext"), ("", ".ext"))
+        self.assertEqual(posixpath.splitext("/foo.ext/foo"), ("/foo.ext/foo", ""))
+        self.assertEqual(posixpath.splitext("foo.ext/"), ("foo.ext/", ""))
+        self.assertEqual(posixpath.splitext(""), ("", ""))
+        self.assertEqual(posixpath.splitext("foo.bar.ext"), ("foo.bar", ".ext"))
+
+        self.assertRaises(TypeError, posixpath.splitext)
+
+    def test_isabs(self):
+        self.assertIs(posixpath.isabs(""), False)
+        self.assertIs(posixpath.isabs("/"), True)
+        self.assertIs(posixpath.isabs("/foo"), True)
+        self.assertIs(posixpath.isabs("/foo/bar"), True)
+        self.assertIs(posixpath.isabs("foo/bar"), False)
+
+        self.assertRaises(TypeError, posixpath.isabs)
+
+    def test_splitdrive(self):
+        self.assertEqual(posixpath.splitdrive("/foo/bar"), ("", "/foo/bar"))
+
+        self.assertRaises(TypeError, posixpath.splitdrive)
+
+    def test_basename(self):
+        self.assertEqual(posixpath.basename("/foo/bar"), "bar")
+        self.assertEqual(posixpath.basename("/"), "")
+        self.assertEqual(posixpath.basename("foo"), "foo")
+        self.assertEqual(posixpath.basename("////foo"), "foo")
+        self.assertEqual(posixpath.basename("//foo//bar"), "bar")
+
+        self.assertRaises(TypeError, posixpath.basename)
+
+    def test_dirname(self):
+        self.assertEqual(posixpath.dirname("/foo/bar"), "/foo")
+        self.assertEqual(posixpath.dirname("/"), "/")
+        self.assertEqual(posixpath.dirname("foo"), "")
+        self.assertEqual(posixpath.dirname("////foo"), "////")
+        self.assertEqual(posixpath.dirname("//foo//bar"), "//foo")
+
+        self.assertRaises(TypeError, posixpath.dirname)
+
+    def test_commonprefix(self):
+        self.assertEqual(
+            posixpath.commonprefix([]),
+            ""
+        )
+        self.assertEqual(
+            posixpath.commonprefix(["/home/swenson/spam", "/home/swen/spam"]),
+            "/home/swen"
+        )
+        self.assertEqual(
+            posixpath.commonprefix(["/home/swen/spam", "/home/swen/eggs"]),
+            "/home/swen/"
+        )
+        self.assertEqual(
+            posixpath.commonprefix(["/home/swen/spam", "/home/swen/spam"]),
+            "/home/swen/spam"
+        )
+
+    def test_getsize(self):
+        f = open(test_support.TESTFN, "wb")
+        try:
+            f.write("foo")
+            f.close()
+            self.assertEqual(posixpath.getsize(test_support.TESTFN), 3)
+        finally:
+            if not f.closed:
+                f.close()
+            os.remove(test_support.TESTFN)
+
+    def test_time(self):
+        f = open(test_support.TESTFN, "wb")
+        try:
+            f.write("foo")
+            f.close()
+            f = open(test_support.TESTFN, "ab")
+            f.write("bar")
+            f.close()
+            f = open(test_support.TESTFN, "rb")
+            d = f.read()
+            f.close()
+            self.assertEqual(d, "foobar")
+
+            self.assert_(
+                posixpath.getctime(test_support.TESTFN) <=
+                posixpath.getmtime(test_support.TESTFN)
+            )
+        finally:
+            if not f.closed:
+                f.close()
+            os.remove(test_support.TESTFN)
+
+    def test_islink(self):
+        self.assertIs(posixpath.islink(test_support.TESTFN + "1"), False)
+        f = open(test_support.TESTFN + "1", "wb")
+        try:
+            f.write("foo")
+            f.close()
+            self.assertIs(posixpath.islink(test_support.TESTFN + "1"), False)
+            if hasattr(os, "symlink"):
+                os.symlink(test_support.TESTFN + "1", test_support.TESTFN + "2")
+                self.assertIs(posixpath.islink(test_support.TESTFN + "2"), True)
+                os.remove(test_support.TESTFN + "1")
+                self.assertIs(posixpath.islink(test_support.TESTFN + "2"), True)
+                self.assertIs(posixpath.exists(test_support.TESTFN + "2"), False)
+        finally:
+            if not f.close():
+                f.close()
+            try:
+                os.remove(test_support.TESTFN + "1")
+            except os.error:
+                pass
+            try:
+                os.remove(test_support.TESTFN + "2")
+            except os.error:
+                pass
+
+        self.assertRaises(TypeError, posixpath.islink)
+
+    def test_exists(self):
+        self.assertIs(posixpath.exists(test_support.TESTFN), False)
+        f = open(test_support.TESTFN, "wb")
+        try:
+            f.write("foo")
+            f.close()
+            self.assertIs(posixpath.exists(test_support.TESTFN), True)
+        finally:
+            if not f.close():
+                f.close()
+            try:
+                os.remove(test_support.TESTFN)
+            except os.error:
+                pass
+
+        self.assertRaises(TypeError, posixpath.exists)
+
+    def test_isdir(self):
+        self.assertIs(posixpath.isdir(test_support.TESTFN), False)
+        f = open(test_support.TESTFN, "wb")
+        try:
+            f.write("foo")
+            f.close()
+            self.assertIs(posixpath.isdir(test_support.TESTFN), False)
+            os.remove(test_support.TESTFN)
+            os.mkdir(test_support.TESTFN)
+            self.assertIs(posixpath.isdir(test_support.TESTFN), True)
+            os.rmdir(test_support.TESTFN)
+        finally:
+            if not f.close():
+                f.close()
+            try:
+                os.remove(test_support.TESTFN)
+            except os.error:
+                pass
+            try:
+                os.rmdir(test_support.TESTFN)
+            except os.error:
+                pass
+
+        self.assertRaises(TypeError, posixpath.isdir)
+
+    def test_isfile(self):
+        self.assertIs(posixpath.isfile(test_support.TESTFN), False)
+        f = open(test_support.TESTFN, "wb")
+        try:
+            f.write("foo")
+            f.close()
+            self.assertIs(posixpath.isfile(test_support.TESTFN), True)
+            os.remove(test_support.TESTFN)
+            os.mkdir(test_support.TESTFN)
+            self.assertIs(posixpath.isfile(test_support.TESTFN), False)
+            os.rmdir(test_support.TESTFN)
+        finally:
+            if not f.close():
+                f.close()
+            try:
+                os.remove(test_support.TESTFN)
+            except os.error:
+                pass
+            try:
+                os.rmdir(test_support.TESTFN)
+            except os.error:
+                pass
+
+        self.assertRaises(TypeError, posixpath.isdir)
+
+        def test_samefile(self):
+            f = open(test_support.TESTFN + "1", "wb")
+            try:
+                f.write("foo")
+                f.close()
+                self.assertIs(
+                    posixpath.samefile(
+                        test_support.TESTFN + "1",
+                        test_support.TESTFN + "1"
+                    ),
+                    True
+                )
+                # If we don't have links, assume that os.stat doesn't return resonable 
+                # inode information and thus, that samefile() doesn't work
+                if hasattr(os, "symlink"):
+                    os.symlink(
+                        test_support.TESTFN + "1",
+                        test_support.TESTFN + "2"
+                    )
+                    self.assertIs(
+                        posixpath.samefile(
+                            test_support.TESTFN + "1",
+                            test_support.TESTFN + "2"
+                        ),
+                        True
+                    )
+                    os.remove(test_support.TESTFN + "2")
+                    f = open(test_support.TESTFN + "2", "wb")
+                    f.write("bar")
+                    f.close()
+                    self.assertIs(
+                        posixpath.samefile(
+                            test_support.TESTFN + "1",
+                            test_support.TESTFN + "2"
+                        ),
+                        False
+                    )
+            finally:
+                if not f.close():
+                    f.close()
+                try:
+                    os.remove(test_support.TESTFN + "1")
+                except os.error:
+                    pass
+                try:
+                    os.remove(test_support.TESTFN + "2")
+                except os.error:
+                    pass
+
+            self.assertRaises(TypeError, posixpath.samefile)
+
+    def test_samestat(self):
+        f = open(test_support.TESTFN + "1", "wb")
+        try:
+            f.write("foo")
+            f.close()
+            self.assertIs(
+                posixpath.samestat(
+                    os.stat(test_support.TESTFN + "1"),
+                    os.stat(test_support.TESTFN + "1")
+                ),
+                True
+            )
+            # If we don't have links, assume that os.stat() doesn't return resonable 
+            # inode information and thus, that samefile() doesn't work
+            if hasattr(os, "symlink"):
+                if hasattr(os, "symlink"):
+                    os.symlink(test_support.TESTFN + "1", test_support.TESTFN + "2")
+                    self.assertIs(
+                        posixpath.samestat(
+                            os.stat(test_support.TESTFN + "1"),
+                            os.stat(test_support.TESTFN + "2")
+                        ),
+                        True
+                    )
+                    os.remove(test_support.TESTFN + "2")
+                f = open(test_support.TESTFN + "2", "wb")
+                f.write("bar")
+                f.close()
+                self.assertIs(
+                    posixpath.samestat(
+                        os.stat(test_support.TESTFN + "1"),
+                        os.stat(test_support.TESTFN + "2")
+                    ),
+                    False
+                )
+        finally:
+            if not f.close():
+                f.close()
+            try:
+                os.remove(test_support.TESTFN + "1")
+            except os.error:
+                pass
+            try:
+                os.remove(test_support.TESTFN + "2")
+            except os.error:
+                pass
+
+        self.assertRaises(TypeError, posixpath.samestat)
+
+    def test_ismount(self):
+        self.assertIs(posixpath.ismount("/"), True)
+
+        self.assertRaises(TypeError, posixpath.ismount)
+
+    def test_expanduser(self):
+        self.assertEqual(posixpath.expanduser("foo"), "foo")
+        self.assert_(isinstance(posixpath.expanduser("~/"), basestring))
+        try:
+            import pwd
+        except ImportError:
+            pass
+        else:
+            self.assert_(isinstance(posixpath.expanduser("~root/"), basestring))
+            self.assert_(isinstance(posixpath.expanduser("~foo/"), basestring))
+
+        self.assertRaises(TypeError, posixpath.expanduser)
+
+    def test_expandvars(self):
+        oldenv = os.environ.copy()
+        try:
+            os.environ.clear()
+            os.environ["foo"] = "bar"
+            os.environ["{foo"] = "baz1"
+            os.environ["{foo}"] = "baz2"
+            self.assertEqual(posixpath.expandvars("foo"), "foo")
+            self.assertEqual(posixpath.expandvars("$foo bar"), "bar bar")
+            self.assertEqual(posixpath.expandvars("${foo}bar"), "barbar")
+            self.assertEqual(posixpath.expandvars("$[foo]bar"), "$[foo]bar")
+            self.assertEqual(posixpath.expandvars("$bar bar"), "$bar bar")
+            self.assertEqual(posixpath.expandvars("$?bar"), "$?bar")
+            self.assertEqual(posixpath.expandvars("${foo}bar"), "barbar")
+            self.assertEqual(posixpath.expandvars("$foo}bar"), "bar}bar")
+            self.assertEqual(posixpath.expandvars("${foo"), "${foo")
+            self.assertEqual(posixpath.expandvars("${{foo}}"), "baz1}")
+        finally:
+            os.environ.clear()
+            os.environ.update(oldenv)
+
+        self.assertRaises(TypeError, posixpath.expandvars)
+
+    def test_normpath(self):
+        self.assertEqual(posixpath.normpath(""), ".")
+        self.assertEqual(posixpath.normpath("/"), "/")
+        self.assertEqual(posixpath.normpath("//"), "//")
+        self.assertEqual(posixpath.normpath("///"), "/")
+        self.assertEqual(posixpath.normpath("///foo/.//bar//"), "/foo/bar")
+        self.assertEqual(posixpath.normpath("///foo/.//bar//.//..//.//baz"), "/foo/baz")
+        self.assertEqual(posixpath.normpath("///..//./foo/.//bar"), "/foo/bar")
+
+        self.assertRaises(TypeError, posixpath.normpath)
+
+    def test_abspath(self):
+        self.assert_("foo" in posixpath.abspath("foo"))
+
+        self.assertRaises(TypeError, posixpath.abspath)
+
+    def test_realpath(self):
+        self.assert_("foo" in posixpath.realpath("foo"))
+
+        self.assertRaises(TypeError, posixpath.realpath)
+
+def test_main():
+    test_support.run_unittest(PosixPathTest)
+
+if __name__=="__main__":
+    test_main()