chore: deprecate test itests (#25512)

This PR is part of #22907

---------

Signed-off-by: HasanAlrimawi <141642411+HasanAlrimawi@users.noreply.github.com>
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

3 files changed, 15 insertions, 0 deletions

diff --git a/tests/specs/test/before_unload_prevent_default/__test__.jsonc b/tests/specs/test/before_unload_prevent_default/__test__.jsonc
new file mode 100644
index 000000000..602250082
--- /dev/null
+++ b/tests/specs/test/before_unload_prevent_default/__test__.jsonc
@@ -0,0 +1,4 @@
+{
+  "args": "test --quiet main.ts",
+  "output": "main.out"
+}
diff --git a/tests/specs/test/before_unload_prevent_default/main.out b/tests/specs/test/before_unload_prevent_default/main.out
new file mode 100644
index 000000000..9ccad312d
--- /dev/null
+++ b/tests/specs/test/before_unload_prevent_default/main.out
@@ -0,0 +1,5 @@
+running 1 test from [WILDCARD]/main.ts
+foo ... ok ([WILDCARD])
+
+ok | 1 passed | 0 failed ([WILDCARD])
+
diff --git a/tests/specs/test/before_unload_prevent_default/main.ts b/tests/specs/test/before_unload_prevent_default/main.ts
new file mode 100644
index 000000000..421ded520
--- /dev/null
+++ b/tests/specs/test/before_unload_prevent_default/main.ts
@@ -0,0 +1,6 @@
+addEventListener("beforeunload", (e) => {
+  // The worker should be killed once tests are done regardless of this.
+  e.preventDefault();
+});
+
+Deno.test("foo", () => {});