t0040-parse-options: improve test coverage

diff --git a/t/t4001-diff-rename.sh b/t/t4001-diff-rename.sh
index 2f327b749588af7eda57187cba4d365233a25ef9..c7e58b69a92fb464059f99ad298b9147946bf702 100755 (executable)
--- a/t/t4001-diff-rename.sh
+++ b/t/t4001-diff-rename.sh
@@ -9,21 +9,84 @@ test_description='Test rename detection in diff engine.
 . ./test-lib.sh
 . "$TEST_DIRECTORY"/diff-lib.sh
 
-echo >path0 'Line 1
-Line 2
-Line 3
-Line 4
-Line 5
-Line 6
-Line 7
-Line 8
-Line 9
-Line 10
-line 11
-Line 12
-Line 13
-Line 14
-Line 15
+test_expect_success 'setup' '
+       cat >path0 <<-\EOF &&
+       Line 1
+       Line 2
+       Line 3
+       Line 4
+       Line 5
+       Line 6
+       Line 7
+       Line 8
+       Line 9
+       Line 10
+       line 11
+       Line 12
+       Line 13
+       Line 14
+       Line 15
+       EOF
+       cat >expected <<-\EOF &&
+       diff --git a/path0 b/path1
+       rename from path0
+       rename to path1
+       --- a/path0
+       +++ b/path1
+       @@ -8,7 +8,7 @@ Line 7
+        Line 8
+        Line 9
+        Line 10
+       -line 11
+       +Line 11
+        Line 12
+        Line 13
+        Line 14
+       EOF
+       cat >no-rename <<-\EOF
+       diff --git a/path0 b/path0
+       deleted file mode 100644
+       index fdbec44..0000000
+       --- a/path0
+       +++ /dev/null
+       @@ -1,15 +0,0 @@
+       -Line 1
+       -Line 2
+       -Line 3
+       -Line 4
+       -Line 5
+       -Line 6
+       -Line 7
+       -Line 8
+       -Line 9
+       -Line 10
+       -line 11
+       -Line 12
+       -Line 13
+       -Line 14
+       -Line 15
+       diff --git a/path1 b/path1
+       new file mode 100644
+       index 0000000..752c50e
+       --- /dev/null
+       +++ b/path1
+       @@ -0,0 +1,15 @@
+       +Line 1
+       +Line 2
+       +Line 3
+       +Line 4
+       +Line 5
+       +Line 6
+       +Line 7
+       +Line 8
+       +Line 9
+       +Line 10
+       +Line 11
+       +Line 12
+       +Line 13
+       +Line 14
+       +Line 15
+       EOF
 '
 
 test_expect_success \
@@ -43,27 +106,27 @@ test_expect_success \
 test_expect_success \
     'git diff-index -p -M after rename and editing.' \
     'git diff-index -p -M $tree >current'
-cat >expected <<\EOF
-diff --git a/path0 b/path1
-rename from path0
-rename to path1
---- a/path0
-+++ b/path1
-@@ -8,7 +8,7 @@ Line 7
- Line 8
- Line 9
- Line 10
--line 11
-+Line 11
- Line 12
- Line 13
- Line 14
-EOF
+
 
 test_expect_success \
     'validate the output.' \
     'compare_diff_patch current expected'
 
+test_expect_success 'test diff.renames=true' '
+       git -c diff.renames=true diff --cached $tree >current &&
+       compare_diff_patch current expected
+'
+
+test_expect_success 'test diff.renames=false' '
+       git -c diff.renames=false diff --cached $tree >current &&
+       compare_diff_patch current no-rename
+'
+
+test_expect_success 'test diff.renames unset' '
+       git diff --cached $tree >current &&
+       compare_diff_patch current expected
+'
+
 test_expect_success 'favour same basenames over different ones' '
        cp path1 another-path &&
        git add another-path &&