1 files changed, 44 insertions, 2 deletions
diff --git a/cli/tests/unit/read_file_test.ts b/cli/tests/unit/read_file_test.ts
index df3161f0b..4b1ebef0b 100644
--- a/cli/tests/unit/read_file_test.ts
+++ b/cli/tests/unit/read_file_test.ts
@@ -6,6 +6,7 @@ import {
   assertRejects,
   assertThrows,
   pathToAbsoluteFileUrl,
+  unreachable,
 } from "./test_util.ts";
 
 Deno.test({ permissions: { read: true } }, function readFileSyncSuccess() {
@@ -95,11 +96,52 @@ Deno.test(
   async function readFileWithAbortSignal() {
     const ac = new AbortController();
     queueMicrotask(() => ac.abort());
-    await assertRejects(async () => {
+    await assertRejects(
+      async () => {
+        await Deno.readFile("cli/tests/testdata/fixture.json", {
+          signal: ac.signal,
+        });
+      },
+      (error: Error) => {
+        assert(error instanceof DOMException);
+        assertEquals(error.name, "AbortError");
+      },
+    );
+  },
+);
+
+Deno.test(
+  { permissions: { read: true } },
+  async function readFileWithAbortSignalReason() {
+    const ac = new AbortController();
+    const abortReason = new Error();
+    queueMicrotask(() => ac.abort(abortReason));
+    await assertRejects(
+      async () => {
+        await Deno.readFile("cli/tests/testdata/fixture.json", {
+          signal: ac.signal,
+        });
+      },
+      (error: Error) => {
+        assertEquals(error, abortReason);
+      },
+    );
+  },
+);
+
+Deno.test(
+  { permissions: { read: true } },
+  async function readFileWithAbortSignalPrimitiveReason() {
+    const ac = new AbortController();
+    queueMicrotask(() => ac.abort("Some string"));
+    try {
       await Deno.readFile("cli/tests/testdata/fixture.json", {
         signal: ac.signal,
       });
-    });
+      unreachable();
+    } catch (e) {
+      assertEquals(e, "Some string");
+    }
   },
 );