From 3808f7fe58f9e5724fbf9ab7e213cde4f21e26f2 Mon Sep 17 00:00:00 2001
From: Michael Merickel <michael@merickel.org>
Date: Mon, 21 Nov 2011 19:30:40 -0600
Subject: Added tests for shell ordering in pshell.

---
 pyramid/scripts/pshell.py                 | 34 ++++++++++++---------
 pyramid/tests/test_scripts/test_pshell.py | 49 +++++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+), 14 deletions(-)

diff --git a/pyramid/scripts/pshell.py b/pyramid/scripts/pshell.py
index 8cf1a4b39..72e2c0a89 100644
--- a/pyramid/scripts/pshell.py
+++ b/pyramid/scripts/pshell.py
@@ -38,7 +38,7 @@ class PShellCommand(object):
     parser = optparse.OptionParser()
     parser.add_option('-p', '--python-shell',
                       action='store', type='string', dest='python_shell',
-                      default = '', help='ipython | bpython | python')
+                      default='', help='ipython | bpython | python')
     parser.add_option('--setup',
                       dest='setup',
                       help=("A callable that will be passed the environment "
@@ -141,30 +141,36 @@ class PShellCommand(object):
             for var in sorted(self.object_help.keys()):
                 help += '\n  %-12s %s' % (var, self.object_help[var])
 
+        if shell is None:
+            shell = self.make_shell()
+
+        try:
+            shell(env, help)
+        finally:
+            closer()
+
+    def make_shell(self):
+        shell = None
         user_shell = self.options.python_shell.lower()
         if not user_shell:
+            shell = self.make_ipython_v0_11_shell()
             if shell is None:
-                shell = self.make_ipython_v0_11_shell()
-                if shell is None:
-                    shell = self.make_ipython_v0_10_shell()
-                if shell is None:
-                    shell = self.make_bpython_shell()
+                shell = self.make_ipython_v0_10_shell()
+            if shell is None:
+                shell = self.make_bpython_shell()
 
-        if shell is None and user_shell == 'ipython':
+        elif user_shell == 'ipython':
             shell = self.make_ipython_v0_11_shell()
             if shell is None:
                 shell = self.make_ipython_v0_10_shell()
 
-        if shell is None and user_shell == 'bpython':
+        elif user_shell == 'bpython':
             shell = self.make_bpython_shell()
 
         if shell is None:
             shell = self.make_default_shell()
 
-        try:
-            shell(env, help)
-        finally:
-            closer()
+        return shell
 
     def make_default_shell(self, interact=interact):
         def shell(env, help):
@@ -174,8 +180,8 @@ class PShellCommand(object):
             interact(banner, local=env)
         return shell
 
-    def make_bpython_shell(self, BPShellFactory=None):
-        if BPShellFactory is None: # pragma: no cover
+    def make_bpython_shell(self, BPShell=None):
+        if BPShell is None: # pragma: no cover
             try:
                 from bpython import embed
                 BPShell = embed
diff --git a/pyramid/tests/test_scripts/test_pshell.py b/pyramid/tests/test_scripts/test_pshell.py
index 4e5deb31d..c1f648b6f 100644
--- a/pyramid/tests/test_scripts/test_pshell.py
+++ b/pyramid/tests/test_scripts/test_pshell.py
@@ -171,6 +171,55 @@ class TestPShellCommand(unittest.TestCase):
         self.assertTrue(self.bootstrap.closer.called)
         self.assertTrue(shell.banner)
 
+    def test_shell_ipython_ordering(self):
+        command = self._makeOne()
+        shell0_11 = dummy.DummyShell()
+        shell0_10 = dummy.DummyShell()
+        command.make_ipython_v0_11_shell = lambda: shell0_11
+        command.make_ipython_v0_10_shell = lambda: shell0_10
+        command.make_bpython_shell = lambda: None
+        shell = command.make_shell()
+        self.assertEqual(shell, shell0_11)
+
+        command.options.python_shell = 'ipython'
+        shell = command.make_shell()
+        self.assertEqual(shell, shell0_11)
+
+    def test_shell_ordering(self):
+        command = self._makeOne()
+        ipshell = dummy.DummyShell()
+        bpshell = dummy.DummyShell()
+        dshell = dummy.DummyShell()
+        command.make_ipython_v0_11_shell = lambda: None
+        command.make_ipython_v0_10_shell = lambda: None
+        command.make_bpython_shell = lambda: None
+        command.make_default_shell = lambda: dshell
+
+        shell = command.make_shell()
+        self.assertEqual(shell, dshell)
+
+        command.options.python_shell = 'ipython'
+        shell = command.make_shell()
+        self.assertEqual(shell, dshell)
+
+        command.options.python_shell = 'bpython'
+        shell = command.make_shell()
+        self.assertEqual(shell, dshell)
+
+        command.make_ipython_v0_11_shell = lambda: ipshell
+        command.make_bpython_shell = lambda: bpshell
+        command.options.python_shell = 'ipython'
+        shell = command.make_shell()
+        self.assertEqual(shell, ipshell)
+
+        command.options.python_shell = 'bpython'
+        shell = command.make_shell()
+        self.assertEqual(shell, bpshell)
+
+        command.options.python_shell = 'python'
+        shell = command.make_shell()
+        self.assertEqual(shell, dshell)
+
     def test_command_loads_custom_items(self):
         command = self._makeOne()
         model = dummy.Dummy()
-- 
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