test(ts): improve "nothing" test

immerjs · Jan 21, 2019 · f7e0d35 · f7e0d35
1 parent c0ea419
commit f7e0d35
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/__tests__/produce.ts b/__tests__/produce.ts
@@ -197,7 +197,8 @@ it("does not enforce immutability at the type level", () => {
 })
 
 it("can produce nothing", () => {
-    let val: undefined = produce({}, s => nothing)
+    let result = produce({}, _ => nothing)
+    exactType(result, undefined)
 })
 
 it("works with `void` hack", () => {