--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-diff-unified.out	Fri Apr 04 22:15:14 2008 +0200
@@ -0,0 +1,49 @@
+adding a
+% default context
+diff -r cf9f4ba66af2 a
+--- a/a
++++ b/a
+@@ -2,7 +2,7 @@
+ c
+ a
+ a
+-b
++dd
+ a
+ a
+ c
+% invalid --unified
+abort: diff context lines count must be an integer, not 'foo'
+% --unified=2
+diff -r cf9f4ba66af2 a
+--- a/a
++++ b/a
+@@ -3,5 +3,5 @@
+ a
+ a
+-b
++dd
+ a
+ a
+% diff.unified=2
+diff -r cf9f4ba66af2 a
+--- a/a
++++ b/a
+@@ -3,5 +3,5 @@
+ a
+ a
+-b
++dd
+ a
+ a
+% diff.unified=2 --unified=1
+diff -r cf9f4ba66af2 a
+--- a/a
++++ b/a
+@@ -4,3 +4,3 @@
+ a
+-b
++dd
+ a
+% invalid diff.unified
+abort: diff context lines count must be an integer, not 'foo'