[PATCH hglib] test: fix a test regression after log behavior fix in mercurial

[Alexander Plavin]

# HG changeset patch
# User Alexander Plavin <me at aplavin.ru>
# Date 1366926368 -14400
#      Fri Apr 26 01:46:08 2013 +0400
# Node ID 9c05d1ae50c047a9cfcf9246873a97ebad1a50a8
# Parent  9324a89dd84e1562b87556a3b2788fdf04ba8179
test: fix a test regression after log behavior fix in mercurial

hg log behavior on empty repositories changed, so modify test cases accordingly

diff -r 9324a89dd84e -r 9c05d1ae50c0 tests/test-context.py
--- a/tests/test-context.py	Tue Apr 23 22:11:26 2013 +0200
+++ b/tests/test-context.py	Fri Apr 26 01:46:08 2013 +0400
@@ -1,9 +1,10 @@
+from hglib.error import CommandError
 import common, hglib
 from hglib import context
 
 class test_context(common.basetest):
     def test_non_existent(self):
-        self.assertRaises(ValueError, context.changectx, self.client, 'foo')
+        self.assertRaises(CommandError, context.changectx, self.client, 'foo')
 
     def test_basic(self):
         self.append('a', 'a')
diff -r 9324a89dd84e -r 9c05d1ae50c0 tests/test-log.py
--- a/tests/test-log.py	Tue Apr 23 22:11:26 2013 +0200
+++ b/tests/test-log.py	Fri Apr 26 01:46:08 2013 +0400
@@ -1,5 +1,6 @@
+from hglib.error import CommandError
 import common
-import hglib
+
 
 class test_log(common.basetest):
     def test_basic(self):
@@ -16,3 +17,9 @@
 
         self.assertEquals(revs[0], self.client.log('0')[0])
         self.assertEquals(self.client.log(), self.client.log(files=['a']))
+
+    def test_errors(self):
+        self.assertRaisesRegexp(CommandError, 'abort: unknown revision', self.client.log, 'foo')
+        self.append('a', 'a')
+        self.client.commit('first', addremove=True)
+        self.assertRaisesRegexp(CommandError, 'abort: unknown revision', self.client.log, 'bar')
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