fix #1912 - CLIENT PAUSE (#2125)

* fix #1912 - CLIENT PAUSE

* fix client pause

* Update commands.ts

packages/client/lib/commands/CLIENT_PAUSE.spec.ts

@@ -0,0 +1,28 @@
+import { strict as assert } from 'assert';
+import testUtils, { GLOBAL } from '../test-utils';
+import { transformArguments } from './CLIENT_PAUSE';
+
+describe('CLIENT PAUSE', () => {
+    describe('transformArguments', () => {
+        it('simple', () => {
+            assert.deepEqual(
+                transformArguments(0),
+                ['CLIENT', 'PAUSE', '0']
+            );
+        });
+
+        it('with mode', () => {
+            assert.deepEqual(
+                transformArguments(0, 'ALL'),
+                ['CLIENT', 'PAUSE', '0', 'ALL']
+            );
+        });
+    });
+
+    testUtils.testWithClient('client.clientPause', async client => {
+        assert.equal(
+            await client.clientPause(0),
+            'OK'
+        );
+    }, GLOBAL.SERVERS.OPEN);
+});

packages/client/lib/commands/CLIENT_PAUSE.ts

@@ -0,0 +1,20 @@
+import { RedisCommandArguments } from '.';
+
+export function transformArguments(
+    timeout: number,
+    mode?: 'WRITE' | 'ALL'
+): RedisCommandArguments {
+    const args = [
+        'CLIENT',
+        'PAUSE',
+        timeout.toString()
+    ];
+
+    if (mode) {
+        args.push(mode);
+    }
+
+    return args;
+}
+
+export declare function transformReply(): 'OK' | Buffer;