Fixes #5985 (#5986)

* Fixes #5985

* Update confirm-fixture.js

---------

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

2 files changed, 41 insertions, 2 deletions

diff --git a/test/js/web/confirm-fixture.js b/test/js/web/confirm-fixture.js
new file mode 100644
index 000000000..908570bce
--- /dev/null
+++ b/test/js/web/confirm-fixture.js
@@ -0,0 +1,3 @@
+const result = confirm("What is your answer?");
+
+console.error(result ? "Yes" : "No");
diff --git a/test/js/web/web-globals.test.js b/test/js/web/web-globals.test.js
index abcad63f7..74b28c0b0 100644
--- a/test/js/web/web-globals.test.js
+++ b/test/js/web/web-globals.test.js
@@ -1,6 +1,6 @@
-import { unsafe } from "bun";
+import { spawn } from "bun";
 import { expect, it, test } from "bun:test";
-import { withoutAggressiveGC } from "harness";
+import { bunEnv, bunExe, withoutAggressiveGC } from "harness";
 
 test("exists", () => {
   expect(typeof URL !== "undefined").toBe(true);
@@ -233,3 +233,39 @@ test("navigator", () => {
     expect(navigator.platform).toBe("Linux x86_64");
   }
 });
+
+test("confirm (yes)", async () => {
+  const proc = spawn({
+    cmd: [bunExe(), require("path").join(import.meta.dir, "./confirm-fixture.js")],
+    stderr: "pipe",
+    stdin: "pipe",
+    stdout: "pipe",
+    env: bunEnv,
+  });
+
+  proc.stdin.write("Y");
+  await proc.stdin.flush();
+
+  proc.stdin.write("\n");
+  await proc.stdin.flush();
+
+  await proc.exited;
+
+  expect(await new Response(proc.stderr).text()).toBe("Yes\n");
+});
+
+test("confirm (no)", async () => {
+  const proc = spawn({
+    cmd: [bunExe(), require("path").join(import.meta.dir, "./confirm-fixture.js")],
+    stderr: "pipe",
+    stdin: "pipe",
+    stdout: "pipe",
+    env: bunEnv,
+  });
+
+  proc.stdin.write("poask\n");
+  await proc.stdin.flush();
+  await proc.exited;
+
+  expect(await new Response(proc.stderr).text()).toBe("No\n");
+});