fix(ext/kv): throw on the Kv constructor (#18978)

Closes #18963

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/cli/tests/unit/kv_test.ts b/cli/tests/unit/kv_test.ts
index 3a3476857..3c5efa588 100644
--- a/cli/tests/unit/kv_test.ts
+++ b/cli/tests/unit/kv_test.ts
@@ -1256,6 +1256,12 @@ dbTest("keys must be arrays", async (db) => {
   );
 });
 
+Deno.test("Deno.Kv constructor throws", () => {
+  assertThrows(() => {
+    new Deno.Kv();
+  });
+});
+
 // This function is never called, it is just used to check that all the types
 // are behaving as expected.
 async function _typeCheckingTests() {