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, 33 insertions, 0 deletions

diff --git a/tests/specs/test/aggregate_error/__test__.jsonc b/tests/specs/test/aggregate_error/__test__.jsonc
new file mode 100644
index 000000000..a02376f87
--- /dev/null
+++ b/tests/specs/test/aggregate_error/__test__.jsonc
@@ -0,0 +1,5 @@
+{
+  "args": "test --quiet main.ts",
+  "exitCode": 1,
+  "output": "main.out"
+}
diff --git a/tests/specs/test/aggregate_error/main.out b/tests/specs/test/aggregate_error/main.out
new file mode 100644
index 000000000..aa790e550
--- /dev/null
+++ b/tests/specs/test/aggregate_error/main.out
@@ -0,0 +1,22 @@
+running 1 test from ./main.ts
+aggregate ... FAILED ([WILDCARD])
+
+ ERRORS 
+
+aggregate => ./main.ts:[WILDCARD]
+error: AggregateError
+    Error: Error 1
+        at [WILDCARD]/main.ts:2:18
+    Error: Error 2
+        at [WILDCARD]/main.ts:3:18
+  throw new AggregateError([error1, error2]);
+        ^
+    at [WILDCARD]/main.ts:5:9
+
+ FAILURES 
+
+aggregate => ./main.ts:[WILDCARD]
+
+FAILED | 0 passed | 1 failed ([WILDCARD])
+
+error: Test failed
diff --git a/tests/specs/test/aggregate_error/main.ts b/tests/specs/test/aggregate_error/main.ts
new file mode 100644
index 000000000..0661ea249
--- /dev/null
+++ b/tests/specs/test/aggregate_error/main.ts
@@ -0,0 +1,6 @@
+Deno.test("aggregate", function () {
+  const error1 = new Error("Error 1");
+  const error2 = new Error("Error 2");
+
+  throw new AggregateError([error1, error2]);
+});