diff --git a/tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts b/tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts index d9fecee7dea3f..35c86175a0bd5 100644 --- a/tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts +++ b/tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts @@ -28,3 +28,10 @@ function f1(ma: string[], ra: readonly string[], mt: [string, string], rt: reado rt = ra; // Error rt = mt; } + +declare var v: readonly[number, number, ...number[]]; +v[0] = 1; // Error +v[1] = 1; // Error +v[2] = 1; // Error +v[0 + 1] = 1; // Error +v[0 + 2] = 1; // Error