1 files changed, 44 insertions, 0 deletions
diff --git a/tests/ui/offset-of/offset-of-builtin.rs b/tests/ui/offset-of/offset-of-builtin.rs
new file mode 100644
index 00000000000..1be9899887b
--- /dev/null
+++ b/tests/ui/offset-of/offset-of-builtin.rs
@@ -0,0 +1,44 @@
+#![feature(builtin_syntax)]
+
+// For the exposed macro we already test these errors in the other files,
+// but this test helps to make sure the builtin construct also errors.
+// This has the same examples as offset-of-arg-count.rs
+
+fn main() {
+    builtin # offset_of(NotEnoughArguments); //~ ERROR expected one of
+}
+fn t1() {
+    // Already errored upon at the macro level. Yielding an error would require
+    // extra effort.
+    builtin # offset_of(NotEnoughArgumentsWithAComma, );
+}
+fn t2() {
+    builtin # offset_of(Container, field, too many arguments); //~ ERROR expected identifier, found
+    //~| ERROR found `,`
+    //~| ERROR found `many`
+    //~| ERROR found `arguments`
+}
+fn t3() {
+    builtin # offset_of(S, f); // compiles fine
+}
+fn t4() {
+    // Already errored upon at the macro level. Yielding an error would require
+    // extra effort.
+    builtin # offset_of(S, f);
+}
+fn t5() {
+    builtin # offset_of(S, f.); //~ ERROR expected identifier
+}
+fn t6() {
+    builtin # offset_of(S, f.,); //~ ERROR expected identifier
+}
+fn t7() {
+    builtin # offset_of(S, f..); //~ ERROR expected one of
+}
+fn t8() {
+    // Already errored upon at the macro level. Yielding an error would require
+    // extra effort.
+    builtin # offset_of(S, f..,);
+}
+
+struct S { f: u8, }