test(NODE-7200): migrate integration/crud/remove tests (#4731)

Author: tadjik1

test/integration/crud/remove.test.js

@@ -0,0 +1,56 @@
+import { expect } from 'chai';
+
+import { type MongoClient } from '../../../src';
+
+describe('Remove', function () {
+  let client: MongoClient;
+
+  beforeEach(async function () {
+    client = this.configuration.newClient();
+  });
+
+  afterEach(async function () {
+    await client.close();
+  });
+
+  it('should correctly clear out collection', async function () {
+    const db = client.db();
+
+    const collection = await db.createCollection('test_clear');
+
+    await collection.insertOne({ i: 1 }, { writeConcern: { w: 1 } });
+
+    await collection.insertOne({ i: 2 }, { writeConcern: { w: 1 } });
+    const count = await collection.countDocuments();
+    expect(count).to.equal(2);
+
+    // Clear the collection
+    const r = await collection.deleteMany({}, { writeConcern: { w: 1 } });
+    expect(r).property('deletedCount').to.equal(2);
+
+    const c = await collection.countDocuments();
+    expect(c).to.equal(0);
+  });
+
+  it('should correctly remove document using RegExp', async function () {
+    const db = client.db(this.configuration.db);
+
+    const collection = await db.createCollection('test_remove_regexp');
+
+    await collection.insertOne({ address: '485 7th ave new york' }, { writeConcern: { w: 1 } });
+
+    // Clear the collection
+    const r = await collection.deleteMany({ address: /485 7th ave/ }, { writeConcern: { w: 1 } });
+    expect(r).property('deletedCount').to.equal(1);
+
+    const count = await collection.countDocuments();
+    expect(count).to.equal(0);
+  });
+
+  it('should not throw error on empty remove', async function () {
+    const db = client.db(this.configuration.db);
+    const collection = db.collection('remove_test');
+
+    await collection.deleteMany({});
+  });
+});