1 files changed, 15 insertions, 0 deletions
diff --git a/tests/ui/union/projection-as-union-type-error.rs b/tests/ui/union/projection-as-union-type-error.rs
new file mode 100644
index 000000000..17091c35f
--- /dev/null
+++ b/tests/ui/union/projection-as-union-type-error.rs
@@ -0,0 +1,15 @@
+// Test to ensure that there is no ICE when normalizing a projection
+// which is invalid (from <https://github.com/rust-lang/rust/pull/106938>).
+
+#![crate_type = "lib"]
+
+pub trait Identity {
+    type Identity;
+}
+
+pub type Foo = u8;
+
+pub union Bar {
+    a:  <Foo as Identity>::Identity, //~ ERROR
+    b: u8,
+}