From 7fe6d5a95169dcdd8b4b6643f8ce132d8d8c94f1 2014-01-29 02:44:50
From: MinRK <benjaminrk@gmail.com>
Date: 2014-01-29 02:44:50
Subject: [PATCH] test notebook signing

---

diff --git a/IPython/nbformat/tests/test_sign.py b/IPython/nbformat/tests/test_sign.py
new file mode 100644
index 0000000..6e3e611
--- /dev/null
+++ b/IPython/nbformat/tests/test_sign.py
@@ -0,0 +1,110 @@
+"""Test Notebook signing"""
+#-----------------------------------------------------------------------------
+#  Copyright (C) 2014, The IPython Development Team
+#
+#  Distributed under the terms of the BSD License.  The full license is in
+#  the file COPYING, distributed as part of this software.
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+
+import hashlib
+
+from .. import sign
+from .base import TestsBase
+
+from ..current import read
+from IPython.core.getipython import get_ipython
+
+#-----------------------------------------------------------------------------
+# Classes and functions
+#-----------------------------------------------------------------------------
+
+class TestNotary(TestsBase):
+    
+    def setUp(self):
+        self.notary = sign.NotebookNotary(
+            secret=b'secret',
+            profile_dir=get_ipython().profile_dir
+        )
+        with self.fopen(u'test3.ipynb', u'r') as f:
+            self.nb = read(f, u'json')
+    
+    def test_algorithms(self):
+        last_sig = ''
+        for algo in hashlib.algorithms:
+            self.notary.algorithm = algo
+            self.notary.sign(self.nb)
+            sig = self.nb.metadata.signature
+            print(sig)
+            self.assertEqual(sig[:len(self.notary.algorithm)+1], '%s:' % self.notary.algorithm)
+            self.assertNotEqual(last_sig, sig)
+            last_sig = sig
+    
+    def test_sign_same(self):
+        """Multiple signatures of the same notebook are the same"""
+        sig1 = self.notary.compute_signature(self.nb)
+        sig2 = self.notary.compute_signature(self.nb)
+        self.assertEqual(sig1, sig2)
+    
+    def test_change_secret(self):
+        """Changing the secret changes the signature"""
+        sig1 = self.notary.compute_signature(self.nb)
+        self.notary.secret = b'different'
+        sig2 = self.notary.compute_signature(self.nb)
+        self.assertNotEqual(sig1, sig2)
+    
+    def test_sign(self):
+        self.notary.sign(self.nb)
+        sig = self.nb.metadata.signature
+        self.assertEqual(sig[:len(self.notary.algorithm)+1], '%s:' % self.notary.algorithm)
+    
+    def test_check_signature(self):
+        nb = self.nb
+        md = nb.metadata
+        notary = self.notary
+        check_signature = notary.check_signature
+        # no signature:
+        md.pop('signature', None)
+        self.assertFalse(check_signature(nb))
+        # hash only, no algo
+        md.signature = notary.compute_signature(nb)
+        self.assertFalse(check_signature(nb))
+        # proper signature, algo mismatch
+        notary.algorithm = 'sha224'
+        notary.sign(nb)
+        notary.algorithm = 'sha256'
+        self.assertFalse(check_signature(nb))
+        # check correctly signed notebook
+        notary.sign(nb)
+        self.assertTrue(check_signature(nb))
+    
+    def test_mark_cells_untrusted(self):
+        cells = self.nb.worksheets[0].cells
+        self.notary.mark_cells(self.nb, False)
+        for cell in cells:
+            if cell.cell_type == 'code':
+                self.assertIn('trusted', cell)
+                self.assertFalse(cell.trusted)
+            else:
+                self.assertNotIn('trusted', cell)
+    
+    def test_mark_cells_trusted(self):
+        cells = self.nb.worksheets[0].cells
+        self.notary.mark_cells(self.nb, True)
+        for cell in cells:
+            if cell.cell_type == 'code':
+                self.assertIn('trusted', cell)
+                self.assertTrue(cell.trusted)
+            else:
+                self.assertNotIn('trusted', cell)
+    
+    def test_check_cells(self):
+        nb = self.nb
+        self.notary.mark_cells(nb, True)
+        self.assertTrue(self.notary.check_cells(nb))
+        self.notary.mark_cells(nb, False)
+        self.assertFalse(self.notary.check_cells(nb))
+
diff --git a/IPython/terminal/tests/test_help.py b/IPython/terminal/tests/test_help.py
index 1c45093..44cae7c 100644
--- a/IPython/terminal/tests/test_help.py
+++ b/IPython/terminal/tests/test_help.py
@@ -35,3 +35,6 @@ def test_locate_help():
 
 def test_locate_profile_help():
     tt.help_all_output_test("locate profile")
+
+def test_trust_help():
+    tt.help_all_output_test("trust")