1 file changed, 20 insertions, 0 deletions
diff --git a/tests/t0204-limits.sh b/tests/t0204-limits.sh
index ab68937..fc61b5c 100755
--- a/tests/t0204-limits.sh
+++ b/tests/t0204-limits.sh
@@ -270,4 +270,24 @@ test_expect_success 'patch and rawdiff show an oversized blob as binary' '
 	done
 '
 
+# The diff options offer up to 40 lines of context, and context lines are
+# not counted against max-diff-lines, so a request asking for more is held
+# at 40. One asking for less than none falls back to the default.
+test_expect_success 'the context a request asks for is clamped' '
+	test_create_repo repos/context &&
+	test_seq 1 100 >repos/context/f &&
+	git -C repos/context add f &&
+	git -C repos/context commit -q -m one &&
+	test_seq 1 100 | sed "s/^50$/fifty/" >repos/context/f &&
+	git -C repos/context commit -q -a -m two &&
+	cgitrc_repo contextrc context &&
+	cgit_ok contextrc "url=context/commit/&context=100000" >tmp &&
+	test_grep "class=.hunk.>@@ -10,81 +10,81 @@" tmp &&
+	test_grep "<option value=.40. selected>40<" tmp &&
+	test_grep ! "context=100000" tmp &&
+	cgit_ok contextrc "url=context/commit/&context=-5" >tmp &&
+	test_grep "class=.hunk.>@@ -47,7 +47,7 @@" tmp &&
+	test_grep "<option value=.3. selected>3<" tmp
+'
+
 test_done