Add failing test for line numbers under color-only

1 files changed, 10 insertions, 0 deletions

diff --git a/src/features/line_numbers.rs b/src/features/line_numbers.rs
index 092629c1..ca024ca2 100644
--- a/src/features/line_numbers.rs
+++ b/src/features/line_numbers.rs
@@ -549,6 +549,16 @@ pub mod tests {
         assert_eq!(lines.next().unwrap(), "     ⋮10000│bb = 2");
     }
 
+    #[test]
+    fn test_color_only() {
+        let config = make_config_from_args(&["--line-numbers", "--color-only"]);
+        let output = run_delta(TWO_MINUS_LINES_DIFF, &config);
+        let mut lines = output.lines().skip(5);
+        let (line_1, line_2) = (lines.next().unwrap(), lines.next().unwrap());
+        assert_eq!(strip_ansi_codes(line_1), " 1  ⋮    │-a = 1");
+        assert_eq!(strip_ansi_codes(line_2), " 2  ⋮    │-b = 2");
+    }
+
     pub const TWO_MINUS_LINES_DIFF: &str = "\
 diff --git i/a.py w/a.py
 index 223ca50..e69de29 100644