1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/diagnostic-width/tabs-trimming.rs b/src/test/ui/diagnostic-width/tabs-trimming.rs
new file mode 100644
index 000000000..ade21753b
--- /dev/null
+++ b/src/test/ui/diagnostic-width/tabs-trimming.rs
@@ -0,0 +1,13 @@
+// Test for #78438: ensure underline alignment with many tabs on the left, long line on the right
+
+// ignore-tidy-linelength
+// ignore-tidy-tab
+
+					fn main() {
+						let money = 42i32;
+						match money {
+							v @ 1 | 2 | 3 => panic!("You gave me too little money {}", v), // Long text here: TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT
+							//~^ ERROR variable `v` is not bound in all patterns
+							v => println!("Enough money {}", v),
+						}
+					}