1 files changed, 33 insertions, 20 deletions
diff --git a/cli/tests/unit/permissions_test.ts b/cli/tests/unit/permissions_test.ts
index 7528768a1..0de6a774b 100644
--- a/cli/tests/unit/permissions_test.ts
+++ b/cli/tests/unit/permissions_test.ts
@@ -1,27 +1,40 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-import { unitTest, assert } from "./test_util.ts";
+
+import { unitTest, assert, assertThrowsAsync } from "./test_util.ts";
 
 unitTest(async function permissionInvalidName(): Promise<void> {
-  let thrown = false;
-  try {
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    await Deno.permissions.query({ name: "foo" as any });
-  } catch (e) {
-    thrown = true;
-    assert(e instanceof Error);
-  } finally {
-    assert(thrown);
-  }
+  await assertThrowsAsync(async () => {
+    // @ts-expect-error name should not accept "foo"
+    await navigator.permissions.query({ name: "foo" });
+  }, TypeError);
 });
 
 unitTest(async function permissionNetInvalidUrl(): Promise<void> {
-  let thrown = false;
-  try {
-    await Deno.permissions.query({ name: "net", url: ":" });
-  } catch (e) {
-    thrown = true;
-    assert(e instanceof URIError);
-  } finally {
-    assert(thrown);
-  }
+  await assertThrowsAsync(async () => {
+    await navigator.permissions.query({ name: "net", url: ":" });
+  }, URIError);
+});
+
+unitTest(async function permissionQueryReturnsEventTarget(): Promise<void> {
+  const status = await navigator.permissions.query({ name: "hrtime" });
+  assert(["granted", "denied", "prompt"].includes(status.state));
+  let called = false;
+  status.addEventListener("change", () => {
+    called = true;
+  });
+  status.dispatchEvent(new Event("change"));
+  assert(called);
+  assert(status === (await navigator.permissions.query({ name: "hrtime" })));
+});
+
+unitTest(async function permissionQueryForReadReturnsSameStatus() {
+  const status1 = await navigator.permissions.query({
+    name: "read",
+    path: ".",
+  });
+  const status2 = await navigator.permissions.query({
+    name: "read",
+    path: ".",
+  });
+  assert(status1 === status2);
 });