add compile error test for invalid enum literal implicit cast

See #683

1 files changed, 14 insertions, 0 deletions

diff --git a/test/compile_errors.zig b/test/compile_errors.zig
index 623e1e9ccc..a193095b0f 100644
--- a/test/compile_errors.zig
+++ b/test/compile_errors.zig
@@ -3,6 +3,20 @@ const builtin = @import("builtin");
 
 pub fn addCases(cases: *tests.CompileErrorContext) void {
     cases.add(
+        "cast enum literal to enum but it doesn't match",
+        \\const Foo = enum {
+        \\    a,
+        \\    b,
+        \\};
+        \\export fn entry() void {
+        \\    const x: Foo = .c;
+        \\}
+    ,
+        "tmp.zig:6:20: error: enum 'Foo' has no field named 'c'",
+        "tmp.zig:1:13: note: 'Foo' declared here",
+    );
+
+    cases.add(
         "discarding error value",
         \\export fn entry() void {
         \\    _ = foo();