From f9f7bd8874e88cfb2a83ccb5dfccf1f9f876ef46 Mon Sep 17 00:00:00 2001
From: pubkey <8926560+pubkey@users.noreply.github.com>
Date: Wed, 19 Jul 2023 16:21:36 +0200
Subject: [PATCH] ADD test for #4755 $regex not working correctly

---
 test/unit/rx-query.test.ts | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/test/unit/rx-query.test.ts b/test/unit/rx-query.test.ts
index 5fa551a3c71..9f84c3de449 100644
--- a/test/unit/rx-query.test.ts
+++ b/test/unit/rx-query.test.ts
@@ -1136,6 +1136,31 @@ describe('rx-query.test.ts', () => {
 
             c.database.destroy();
         });
+        /**
+         * @link https://github.com/pubkey/rxdb/issues/4755#issuecomment-1641928515
+         */
+        it('#4755 $regex on primaryKey not working correctly', async () => {
+            const c = await humansCollection.create(0);
+
+            await c.bulkInsert([
+                schemaObjects.human('hello1'),
+                schemaObjects.human('hello2'),
+                schemaObjects.human('hello22'),
+                schemaObjects.human('hello3')
+            ]);
+
+            const queryResult = await c.find({
+                selector: {
+                    passportId: {
+                        $regex: '^hello2'
+                    }
+                }
+            }).exec();
+            assert.strictEqual(queryResult.length, 2);
+            queryResult.forEach(doc => assert.ok(doc.passportId.startsWith('hello2')));
+
+            c.database.destroy();
+        });
         it('#2213 prepareQuery should handle all comparison operators', async () => {
             const collection = await humansCollection.createAgeIndex(0);
             await collection.insert({