Fixing broken tests on win32.

* Fixed tests related to get_home_dir.
* Skipping test that involved killing a process in
  frontend.tests.test_process.
* Added a few new tests for get_home_dir.

IPython/frontend/tests/test_process.py

@@ -47,6 +47,7 b' def test_io():'
     assert result == test_string
 
 
[e-mail]_win32
 def test_kill():
     """ Check that we can kill a process, and its subprocess.
     """

IPython/utils/path.py

@@ -145,11 +145,11 b' def get_home_dir():'
 
     * On POSIX, we try $HOME.
     * On Windows we try:
-      - %HOME%: rare, but some people with unix-like setups may have defined it
       - %HOMESHARE%
       - %HOMEDRIVE\%HOMEPATH%
       - %USERPROFILE%
-      - Registry hack
+      - Registry hack for My Documents
+      - %HOME%: rare, but some people with unix-like setups may have defined it
     * On Dos C:\
  
     Currently only Posix and NT are implemented, a HomeDirError exception is

IPython/utils/tests/test_path.py

@@ -25,7 +25,7 b' from nose import with_setup'
 
 import IPython
 from IPython.testing import decorators as dec
-from IPython.testing.decorators import skip_if_not_win32
+from IPython.testing.decorators import skip_if_not_win32, skip_win32
 from IPython.utils import path
 
 # Platform-dependent imports
@@ -114,7 +114,7 b' def test_get_home_dir_1():'
     #fake filename for IPython.__init__
     IPython.__file__ = abspath(join(HOME_TEST_DIR, "Lib/IPython/__init__.py"))
     
-    path.home_dir = get_home_dir()
+    home_dir = path.get_home_dir()
     nt.assert_equal(home_dir, abspath(HOME_TEST_DIR))
 
 
@@ -132,6 +132,7 b' def test_get_home_dir_2():'
 
 
 @with_environment
+@skip_win32
 def test_get_home_dir_3():
     """Testcase $HOME is set, then use its value as home directory."""
     env["HOME"] = HOME_TEST_DIR
@@ -152,13 +153,14 b' def test_get_home_dir_4():'
 @skip_if_not_win32
 @with_environment
 def test_get_home_dir_5():
-    """Testcase $HOME is not set, os=='nt' 
-    env['HOMEDRIVE'],env['HOMEPATH'] points to path."""
+    """Using HOMEDRIVE + HOMEPATH, os=='nt'.
+
+    HOMESHARE is missing.
+    """
 
     os.name = 'nt'
-    if 'HOME' in env: del env['HOME']
+    env.pop('HOMESHARE', None)
     env['HOMEDRIVE'], env['HOMEPATH'] = os.path.splitdrive(HOME_TEST_DIR)
-
     home_dir = path.get_home_dir()
     nt.assert_equal(home_dir, abspath(HOME_TEST_DIR))
 
@@ -166,27 +168,37 b' def test_get_home_dir_5():'
 @skip_if_not_win32
 @with_environment
 def test_get_home_dir_6():
-    """Testcase $HOME is not set, os=='nt' 
-    env['HOMEDRIVE'],env['HOMEPATH'] do not point to path.
-    env['USERPROFILE'] points to path
+    """Using USERPROFILE, os=='nt'.
+
+    HOMESHARE, HOMEDRIVE, HOMEPATH are missing.
     """
 
     os.name = 'nt'
-    if 'HOME' in env: del env['HOME']
-    env['HOMEDRIVE'], env['HOMEPATH'] = os.path.abspath(TEST_FILE_PATH), "DOES NOT EXIST"
+    env.pop('HOMESHARE', None)
+    env.pop('HOMEDRIVE', None)
+    env.pop('HOMEPATH', None)
     env["USERPROFILE"] = abspath(HOME_TEST_DIR)
-
     home_dir = path.get_home_dir()
     nt.assert_equal(home_dir, abspath(HOME_TEST_DIR))
 
 
-# Should we stub wreg fully so we can run the test on all platforms?
 @skip_if_not_win32
 @with_environment
 def test_get_home_dir_7():
-    """Testcase $HOME is not set, os=='nt'
+    """Using HOMESHARE, os=='nt'."""
+
+    os.name = 'nt'
+    env["HOMESHARE"] = abspath(HOME_TEST_DIR)
+    home_dir = path.get_home_dir()
+    nt.assert_equal(home_dir, abspath(HOME_TEST_DIR))
+    
+# Should we stub wreg fully so we can run the test on all platforms?
+@skip_if_not_win32
+@with_environment
+def test_get_home_dir_8():
+    """Using registry hack for 'My Documents', os=='nt'
     
-    env['HOMEDRIVE'],env['HOMEPATH'], env['USERPROFILE'] and others missing
+    HOMESHARE, HOMEDRIVE, HOMEPATH, USERPROFILE and others are missing.
     """
     os.name = 'nt'
     # Remove from stub environment all keys that may be set