[PATCH v2] t4038: add tests for "diff --cc --raw <trees>"

[John Keeping <john@keeping.me.uk>]

Signed-off-by: John Keeping <john@keeping.me.uk>

---
Changes since v1:

- more spaces around '|'
- create trees with line feeds and use 'sed -e 4q'
---
 t/t4038-diff-combined.sh | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/t/t4038-diff-combined.sh b/t/t4038-diff-combined.sh
index 40277c7..614425a 100755
--- a/t/t4038-diff-combined.sh
+++ b/t/t4038-diff-combined.sh
@@ -89,4 +89,28 @@ test_expect_success 'diagnose truncated file' '
 	grep "diff --cc file" out
 '
 
+test_expect_success 'setup for --cc --raw' '
+	blob=$(echo file | git hash-object --stdin -w) &&
+	base_tree=$(echo "100644 blob $blob	file" | git mktree) &&
+	trees= &&
+	for i in `test_seq 1 40`
+	do
+		blob=$(echo file$i | git hash-object --stdin -w) &&
+		trees="$trees$(echo "100644 blob $blob	file" | git mktree)$LF"
+	done
+'
+
+test_expect_success 'check --cc --raw with four trees' '
+	four_trees=$(echo "$trees" | sed -e 4q) &&
+	git diff --cc --raw $four_trees $base_tree >out &&
+	# Check for four leading colons in the output:
+	grep "^::::[^:]" out
+'
+
+test_expect_success 'check --cc --raw with forty trees' '
+	git diff --cc --raw $trees $base_tree >out &&
+	# Check for forty leading colons in the output:
+	grep "^::::::::::::::::::::::::::::::::::::::::[^:]" out
+'
+
 test_done
-- 
1.8.1.2.689.g36c777b