From 2e8ce46a41a31f247bcd50e3bd04b1ed5b8f89c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mateusz=20Burzy=C5=84ski?= <mateuszburzynski@gmail.com>
Date: Mon, 9 Sep 2024 16:19:08 +0200
Subject: [PATCH] Add tests for JSDoc `@pattern` with `@` in it

---
 src/testRunner/unittests/jsDocParsing.ts      |  6 ++++
 ...parsesCorrectly.@pattern with @ in it.json | 30 +++++++++++++++++++
 .../cases/fourslash/quickInfoJsDocPattern1.ts | 13 ++++++++
 3 files changed, 49 insertions(+)
 create mode 100644 tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.@pattern with @ in it.json
 create mode 100644 tests/cases/fourslash/quickInfoJsDocPattern1.ts

diff --git a/src/testRunner/unittests/jsDocParsing.ts b/src/testRunner/unittests/jsDocParsing.ts
index 546bffaa777e1..98aea4020d382 100644
--- a/src/testRunner/unittests/jsDocParsing.ts
+++ b/src/testRunner/unittests/jsDocParsing.ts
@@ -508,6 +508,12 @@ oh.no
                 "@@ does not start a new tag",
                 `/**
  * @param this is (@@fine@@and) is one comment
+ */`,
+            );
+            parsesCorrectly(
+                "@pattern with @ in it",
+                `/**
+ * @pattern ^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z0-9-.]+$
  */`,
             );
         });
diff --git a/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.@pattern with @ in it.json b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.@pattern with @ in it.json
new file mode 100644
index 0000000000000..2e6fe380ee388
--- /dev/null
+++ b/tests/baselines/reference/JSDocParsing/DocComments.parsesCorrectly.@pattern with @ in it.json	
@@ -0,0 +1,30 @@
+{
+    "kind": "JSDoc",
+    "pos": 0,
+    "end": 68,
+    "flags": "JSDoc",
+    "modifierFlagsCache": 0,
+    "transformFlags": 0,
+    "tags": {
+        "0": {
+            "kind": "JSDocTag",
+            "pos": 7,
+            "end": 66,
+            "modifierFlagsCache": 0,
+            "transformFlags": 0,
+            "tagName": {
+                "kind": "Identifier",
+                "pos": 8,
+                "end": 15,
+                "transformFlags": 0,
+                "escapedText": "pattern"
+            },
+            "comment": "^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z0-9-.]+$"
+        },
+        "length": 1,
+        "pos": 7,
+        "end": 66,
+        "hasTrailingComma": false,
+        "transformFlags": 0
+    }
+}
\ No newline at end of file
diff --git a/tests/cases/fourslash/quickInfoJsDocPattern1.ts b/tests/cases/fourslash/quickInfoJsDocPattern1.ts
new file mode 100644
index 0000000000000..cdbdc3708da6d
--- /dev/null
+++ b/tests/cases/fourslash/quickInfoJsDocPattern1.ts
@@ -0,0 +1,13 @@
+///<reference path="fourslash.ts" />
+
+//// class Test {
+////   /**
+////    * @pattern ^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z0-9-.]+$
+////    */
+////   public emailPattern/*1*/: string;
+//// }
+
+verify.quickInfoAt("1", "(property) Test.emailPattern: string", undefined, [{
+    name: "pattern",
+    text: "^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\\\.[a-zA-Z0-9-.]+$"
+}]);