2026-05-26 13:36:43 +02:00
1 changed files with 4 additions and 1 deletions
@@ -35,7 +35,10 @@ describe('isStructureKind', () => {
  });

  it('narrows the type at the call site', () => {
-    const candidate: string = 'medico_social';
+    // Round-trip through `String()` to widen the literal to `string`.
+    // Without this the inferred type is `'medico_social'`, already a
+    // StructureKind subtype — the narrowing check would be vacuous.
+    const candidate = String('medico_social');
    if (!isStructureKind(candidate)) {
      throw new Error('unreachable — candidate is a known kind');
    }