1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/dst/dst-bad-coerce4.rs b/src/test/ui/dst/dst-bad-coerce4.rs
new file mode 100644
index 000000000..f63da60d2
--- /dev/null
+++ b/src/test/ui/dst/dst-bad-coerce4.rs
@@ -0,0 +1,25 @@
+// Attempt to coerce from unsized to sized.
+
+#![feature(unsized_tuple_coercion)]
+
+struct Fat<T: ?Sized> {
+    ptr: T
+}
+
+pub fn main() {
+    // With a vec of isizes.
+    let f1: &Fat<[isize]> = &Fat { ptr: [1, 2, 3] };
+    let f2: &Fat<[isize; 3]> = f1;
+    //~^ ERROR mismatched types
+    //~| expected array `[isize; 3]`, found slice `[isize]`
+    //~| expected reference `&Fat<[isize; 3]>`
+    //~| found reference `&Fat<[isize]>`
+
+    // Tuple with a vec of isizes.
+    let f1: &([isize],) = &([1, 2, 3],);
+    let f2: &([isize; 3],) = f1;
+    //~^ ERROR mismatched types
+    //~| expected array `[isize; 3]`, found slice `[isize]`
+    //~| expected reference `&([isize; 3],)`
+    //~| found reference `&([isize],)`
+}