test_cmp expected actual
'
+test_expect_success 'changed commit with sm config' '
+ git range-diff --no-color --submodule=log topic...changed >actual &&
+ cat >expected <<-EOF &&
+ 1: 4de457d = 1: a4b3333 s/5/A/
+ 2: fccce22 = 2: f51d370 s/4/A/
+ 3: 147e64e ! 3: 0559556 s/11/B/
+ @@ -10,7 +10,7 @@
+ 9
+ 10
+ -11
+ -+B
+ ++BB
+ 12
+ 13
+ 14
+ 4: a63e992 ! 4: d966c5c s/12/B/
+ @@ -8,7 +8,7 @@
+ @@
+ 9
+ 10
+ - B
+ + BB
+ -12
+ +B
+ 13
+ EOF
+ test_cmp expected actual
+'
+
test_expect_success 'no commits on one side' '
git commit --amend -m "new message" &&
git range-diff master HEAD@{1} HEAD