2 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/parser/macro/literals-are-validated-before-expansion.rs b/src/test/ui/parser/macro/literals-are-validated-before-expansion.rs
new file mode 100644
index 00000000000..c3fc754b556
--- /dev/null
+++ b/src/test/ui/parser/macro/literals-are-validated-before-expansion.rs
@@ -0,0 +1,10 @@
+macro_rules! black_hole {
+    ($($tt:tt)*) => {}
+}
+
+fn main() {
+    black_hole! { '\u{FFFFFF}' }
+    //~^ ERROR: invalid unicode character escape
+    black_hole! { "this is surrogate: \u{DAAA}" }
+    //~^ ERROR: invalid unicode character escape
+}
diff --git a/src/test/ui/parser/macro/literals-are-validated-before-expansion.stderr b/src/test/ui/parser/macro/literals-are-validated-before-expansion.stderr
new file mode 100644
index 00000000000..d20eb0fb30a
--- /dev/null
+++ b/src/test/ui/parser/macro/literals-are-validated-before-expansion.stderr
@@ -0,0 +1,18 @@
+error: invalid unicode character escape
+  --> $DIR/literals-are-validated-before-expansion.rs:6:20
+   |
+LL |     black_hole! { '\u{FFFFFF}' }
+   |                    ^^^^^^^^^^
+   |
+   = help: unicode escape must be at most 10FFFF
+
+error: invalid unicode character escape
+  --> $DIR/literals-are-validated-before-expansion.rs:8:39
+   |
+LL |     black_hole! { "this is surrogate: \u{DAAA}" }
+   |                                       ^^^^^^^^
+   |
+   = help: unicode escape must not be a surrogate
+
+error: aborting due to 2 previous errors
+