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, 46 insertions, 0 deletions

diff --git a/tests/specs/test/load_unload/__test__.jsonc b/tests/specs/test/load_unload/__test__.jsonc
new file mode 100644
index 000000000..e1ed1b926
--- /dev/null
+++ b/tests/specs/test/load_unload/__test__.jsonc
@@ -0,0 +1,5 @@
+{
+  "args": "test main.ts",
+  "exitCode": 0,
+  "output": "main.out"
+}
diff --git a/tests/specs/test/load_unload/main.out b/tests/specs/test/load_unload/main.out
new file mode 100644
index 000000000..6a818d911
--- /dev/null
+++ b/tests/specs/test/load_unload/main.out
@@ -0,0 +1,16 @@
+Check [WILDCARD]/main.ts
+------- pre-test output -------
+load
+----- pre-test output end -----
+running 1 test from [WILDCARD]/main.ts
+test ...
+------- output -------
+test
+----- output end -----
+test ... ok ([WILDCARD])
+------- post-test output -------
+unload
+----- post-test output end -----
+
+ok | 1 passed | 0 failed ([WILDCARD])
+
diff --git a/tests/specs/test/load_unload/main.ts b/tests/specs/test/load_unload/main.ts
new file mode 100644
index 000000000..5027b949a
--- /dev/null
+++ b/tests/specs/test/load_unload/main.ts
@@ -0,0 +1,25 @@
+let interval: number | null = null;
+addEventListener("load", () => {
+  if (interval) {
+    throw new Error("Interval is already set");
+  }
+
+  console.log("load");
+  interval = setInterval(() => {}, 0);
+});
+
+addEventListener("unload", () => {
+  if (!interval) {
+    throw new Error("Interval was not set");
+  }
+
+  console.log("unload");
+  clearInterval(interval);
+});
+
+Deno.test("test", () => {
+  console.log("test");
+  if (!interval) {
+    throw new Error("Interval was not set");
+  }
+});