Bloom commands (#1786)

* ft.alter

* bloom commands

* tdigest

* delete tdigest

* uncomment tests

* small changes

* Update MADD.ts

* small changes

* clean code

* Update README.md

* Update README.md

Co-authored-by: leibale <leibale1998@gmail.com>

packages/bloom/lib/commands/count-min-sketch/MERGE.spec.ts

@@ -0,0 +1,36 @@
+import { strict as assert } from 'assert';
+import testUtils, { GLOBAL } from '../../test-utils';
+import { transformArguments } from './MERGE';
+
+describe('CMS MERGE', () => {
+    describe('transformArguments', () => {
+        it('without WEIGHTS', () => {
+            assert.deepEqual(
+                transformArguments('dest', ['src']),
+                ['CMS.MERGE', 'dest', '1', 'src']
+            );
+        });
+
+        it('with WEIGHTS', () => {
+            assert.deepEqual(
+                transformArguments('dest', [{
+                    name: 'src',
+                    weight: 1
+                }]),
+                ['CMS.MERGE', 'dest', '1', 'src', 'WEIGHTS', '1']
+            );
+        });
+    });
+
+    testUtils.testWithClient('client.cms.merge', async client => {
+        await Promise.all([
+            client.cms.initByDim('src', 1000, 5),
+            client.cms.initByDim('dest', 1000, 5),
+        ]);
+
+        assert.equal(
+            await client.cms.merge('dest', ['src']),
+            'OK'
+        );
+    }, GLOBAL.SERVERS.OPEN);
+});