implement a couple of more commands, make cluster random iterator be per node (instead of per slot)

lib/client.ts

@@ -239,7 +239,7 @@ export default class RedisClient<M extends RedisModules = RedisModules, S extend
                     }
 
                     callback(err);
-                })
+                });
         }
 
         for (const name of Object.keys(COMMANDS)) {

lib/cluster-slots.ts

@@ -75,18 +75,17 @@ export default class RedisClusterSlots<M extends RedisModules, S extends RedisLu
         const promises: Array<Promise<void>> = [],
             clientsInUse = new Set<string>();
         for (const master of masters) {
-            const masterClient = this.#initiateClientForNode(master, false, clientsInUse, promises),
-                replicasClients = this.#options.useReplicas ?
+            const slot = {
+                master: this.#initiateClientForNode(master, false, clientsInUse, promises),
+                replicas: this.#options.useReplicas ?
                     master.replicas.map(replica => this.#initiateClientForNode(replica, true, clientsInUse, promises)) :
-                    [];
+                    [],
+                iterator: undefined // will be initiated in use
+            };
 
-            for (const slot of master.slots) {
-                for (let i = slot.from; i < slot.to; i++) {
-                    this.#slots[i] = {
-                        master: masterClient,
-                        replicas: replicasClients,
-                        iterator: undefined // will be initiated in use
-                    };
+            for (const { from, to } of master.slots) {
+                for (let i = from; i < to; i++) {
+                    this.#slots[i] = slot;
                 }
             }
         }

lib/commands/CLIENT_INFO.spec.ts

@@ -0,0 +1,42 @@
+import { strict as assert } from 'assert';
+import { transformArguments, transformReply } from './CLIENT_INFO';
+
+describe('CLIENT INFO', () => {
+    it('transformArguments', () => {
+        assert.deepEqual(
+            transformArguments(),
+            ['CLIENT', 'INFO']
+        );
+    });
+
+    it('transformReply', () => {
+        assert.deepEqual(
+            transformReply('id=526512 addr=127.0.0.1:36244 laddr=127.0.0.1:6379 fd=8 name= age=11213 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=26 qbuf-free=40928 argv-mem=10 obl=0 oll=0 omem=0 tot-mem=61466 events=r cmd=client user=default redir=-1\n'),
+            {
+                id: 526512,
+                addr: '127.0.0.1:36244',
+                laddr: '127.0.0.1:6379',
+                fd: 8,
+                name: '',
+                age: 11213,
+                idle: 0,
+                flags: 'N',
+                db: 0,
+                sub: 0,
+                psub: 0,
+                multi: -1,
+                qbuf: 26,
+                qbufFree: 40928,
+                argvMem: 10,
+                obl: 0,
+                oll: 0,
+                omem: 0,
+                totMem: 61466,
+                events: 'r',
+                cmd: 'client',
+                user: 'default',
+                redir: -1
+            }
+        );
+    });
+});

lib/commands/FLUSHDB.spec.ts

@@ -0,0 +1,36 @@
+import { strict as assert } from 'assert';
+import { TestRedisServers, itWithClient } from '../test-utils';
+import { RedisFlushModes } from './FLUSHALL';
+import { transformArguments } from './FLUSHDB';
+
+describe('FLUSHDB', () => {
+    describe('transformArguments', () => {
+        it('default', () => {
+            assert.deepEqual(
+                transformArguments(),
+                ['FLUSHDB']
+            );
+        });
+
+        it('ASYNC', () => {
+            assert.deepEqual(
+                transformArguments(RedisFlushModes.ASYNC),
+                ['FLUSHDB', 'ASYNC']
+            );
+        });
+
+        it('SYNC', () => {
+            assert.deepEqual(
+                transformArguments(RedisFlushModes.SYNC),
+                ['FLUSHDB', 'SYNC']
+            );
+        });
+    });
+
+    itWithClient(TestRedisServers.OPEN, 'client.flushDb', async client => {
+        assert.equal(
+            await client.flushDb(),
+            'OK'
+        );
+    });
+});

lib/commands/FLUSHDB.ts

@@ -0,0 +1,14 @@
+import { RedisFlushModes } from './FLUSHALL';
+import { transformReplyString } from './generic-transformers';
+
+export function transformArguments(mode?: RedisFlushModes): Array<string> {
+    const args = ['FLUSHDB'];
+
+    if (mode) {
+        args.push(mode);
+    }
+
+    return args;
+}
+
+export const transformReply = transformReplyString;

lib/commands/LASTSAVE.spec.ts

@@ -0,0 +1,20 @@
+import { strict as assert } from 'assert';
+import { TestRedisServers, itWithClient, itWithCluster, TestRedisClusters } from '../test-utils';
+import { transformArguments } from './LASTSAVE';
+
+describe('LASTSAVE', () => {
+    it('transformArguments', () => {
+        assert.deepEqual(
+            transformArguments(),
+            ['LASTSAVE']
+        );
+    });
+
+    itWithClient(TestRedisServers.OPEN, 'client.lastSave', async client => {
+        assert.ok((await client.lastSave()) instanceof Date);
+    });
+
+    itWithCluster(TestRedisClusters.OPEN, 'cluster.lastSave', async cluster => {
+        assert.ok((await cluster.lastSave()) instanceof Date);
+    });
+});

lib/commands/LASTSAVE.ts

@@ -0,0 +1,9 @@
+export const IS_READ_ONLY = true;
+
+export function transformArguments(): Array<string> {
+    return ['LASTSAVE'];
+}
+
+export function transformReply(reply: number): Date {
+    return new Date(reply);
+}

lib/commands/LOLWUT.spec.ts

@@ -0,0 +1,43 @@
+import { strict as assert } from 'assert';
+import { TestRedisServers, itWithClient, itWithCluster, TestRedisClusters } from '../test-utils';
+import { transformArguments } from './LOLWUT';
+
+describe('LOLWUT', () => {
+    describe('transformArguments', () => {
+        it('simple', () => {
+            assert.deepEqual(
+                transformArguments(),
+                ['LOLWUT']
+            );
+        });
+
+        it('with version', () => {
+            assert.deepEqual(
+                transformArguments(5),
+                ['LOLWUT', 'VERSION', '5']
+            );
+        });
+
+        it('with version and optional arguments', () => {
+            assert.deepEqual(
+                transformArguments(5, 1, 2, 3),
+                ['LOLWUT', 'VERSION', '5', '1', '2', '3']
+            );
+        });
+    });
+    
+
+    itWithClient(TestRedisServers.OPEN, 'client.LOLWUT', async client => {
+        assert.equal(
+            typeof (await client.LOLWUT()),
+            'string'
+        );
+    });
+
+    itWithCluster(TestRedisClusters.OPEN, 'cluster.LOLWUT', async cluster => {
+        assert.equal(
+            typeof (await cluster.LOLWUT()),
+            'string'
+        );
+    });
+});

lib/commands/LOLWUT.ts

@@ -0,0 +1,19 @@
+import { transformReplyString } from './generic-transformers';
+
+export const IS_READ_ONLY = true;
+
+export function transformArguments(version?: number, ...optionalArguments: Array<number>): Array<string> {
+    const args = ['LOLWUT'];
+
+    if (version) {
+        args.push(
+            'VERSION',
+            version.toString(),
+            ...optionalArguments.map(String),
+        );
+    }
+
+    return args;
+}
+
+export const transformReply = transformReplyString;

lib/commands/SETRANGE.spec.ts

@@ -0,0 +1,26 @@
+import { strict as assert } from 'assert';
+import { TestRedisServers, itWithClient, itWithCluster, TestRedisClusters } from '../test-utils';
+import { transformArguments } from './SETRANGE';
+
+describe('SETRANGE', () => {
+    it('transformArguments', () => {
+        assert.deepEqual(
+            transformArguments('key', 0, 'value'),
+            ['SETRANGE', 'key', '0', 'value']
+        );
+    });
+
+    itWithClient(TestRedisServers.OPEN, 'client.setRange', async client => {
+        assert.equal(
+            await client.setRange('key', 0, 'value'),
+            5
+        );
+    });
+
+    itWithCluster(TestRedisClusters.OPEN, 'cluster.setRange', async cluster => {
+        assert.equal(
+            await cluster.setRange('key', 0, 'value'),
+            5
+        );
+    });
+});

lib/commands/SETRANGE.ts

@@ -0,0 +1,9 @@
+import { transformReplyNumber } from './generic-transformers';
+
+export const FIRST_KEY_INDEX = 1;
+
+export function transformArguments(key: string, offset: number, value: string): Array<string> {
+    return ['SETRANGE', key, offset.toString(), value];
+}
+
+export const transformReply = transformReplyNumber;

lib/commands/STRLEN.spec.ts

@@ -0,0 +1,26 @@
+import { strict as assert } from 'assert';
+import { TestRedisServers, itWithClient, itWithCluster, TestRedisClusters } from '../test-utils';
+import { transformArguments } from './STRLEN';
+
+describe('STRLEN', () => {
+    it('transformArguments', () => {
+        assert.deepEqual(
+            transformArguments('key'),
+            ['STRLEN', 'key']
+        );
+    });
+
+    itWithClient(TestRedisServers.OPEN, 'client.strLen', async client => {
+        assert.equal(
+            await client.strLen('key'),
+            0
+        );
+    });
+
+    itWithCluster(TestRedisClusters.OPEN, 'cluster.strLen', async cluster => {
+        assert.equal(
+            await cluster.strLen('key'),
+            0
+        );
+    });
+});

lib/commands/STRLEN.ts

@@ -0,0 +1,11 @@
+import { transformReplyNumber } from './generic-transformers';
+
+export const FIRST_KEY_INDEX = 1;
+
+export const IS_READ_ONLY = true;
+
+export function transformArguments(key: string): Array<string> {
+    return ['STRLEN', key];
+}
+
+export const transformReply = transformReplyNumber;

lib/commands/index.ts

@@ -24,6 +24,7 @@ import * as EXISTS from './EXISTS';
 import * as EXPIRE from './EXPIRE';
 import * as EXPIREAT from './EXPIREAT';
 import * as FLUSHALL from './FLUSHALL';
+import * as FLUSHDB from './FLUSHDB';
 import * as GET from './GET';
 import * as HDEL from './HDEL';
 import * as HEXISTS from './HEXISTS';
@@ -45,10 +46,12 @@ import * as INCR from './INCR';
 import * as INCRBY from './INCRBY';
 import * as INCRBYFLOAT from './INCRBYFLOAT';
 import * as KEYS from './KEYS';
+import * as LASTSAVE from './LASTSAVE';
 import * as LINDEX from './LINDEX';
 import * as LINSERT from './LINSERT';
 import * as LLEN from './LLEN';
 import * as LMOVE from './LMOVE';
+import * as LOLWUT from './LOLWUT';
 import * as LPOP from './LPOP';
 import * as LPOP_COUNT from './LPOP_COUNT';
 import * as LPUSH from './LPUSH';
@@ -82,6 +85,7 @@ import * as SCARD from './SCARD';
 import * as SDIFF from './SDIFF';
 import * as SDIFFSTORE from './SDIFFSTORE';
 import * as SET from './SET';
+import * as SETRANGE from './SETRANGE';
 import * as SINTER from './SINTER';
 import * as SINTERSTORE from './SINTERSTORE';
 import * as SISMEMBER from './SISMEMBER';
@@ -94,6 +98,7 @@ import * as SRANDMEMBER_COUNT from './SRANDMEMBER_COUNT';
 import * as SRANDMEMBER from './SRANDMEMBER';
 import * as SREM from './SREM';
 import * as SSCAN from './SSCAN';
+import * as STRLEN from './STRLEN';
 import * as SUNION from './SUNION';
 import * as SUNIONSTORE from './SUNIONSTORE';
 import * as TOUCH from './TOUCH';
@@ -211,6 +216,8 @@ export default {
     expireAt: EXPIREAT,
     FLUSHALL,
     flushAll: FLUSHALL,
+    FLUSHDB,
+    flushDb: FLUSHDB,
     GET,
     get: GET,
     HDEL,
@@ -253,6 +260,8 @@ export default {
     incrByFloat: INCRBYFLOAT,
     KEYS,
     keys: KEYS,
+    LASTSAVE,
+    lastSave: LASTSAVE,
     LINDEX,
     lIndex: LINDEX,
     LINSERT,
@@ -261,6 +270,7 @@ export default {
     lLen: LLEN,
     LMOVE,
     lMove: LMOVE,
+    LOLWUT,
     LPOP_COUNT,
     lPopCount: LPOP_COUNT,
     LPOP,
@@ -331,6 +341,8 @@ export default {
     sInterStore: SINTERSTORE,
     SET,
     set: SET,
+    SETRANGE,
+    setRange: SETRANGE,
     SISMEMBER,
     sIsMember: SISMEMBER,
     SMEMBERS,
@@ -351,6 +363,8 @@ export default {
     sRem: SREM,
     SSCAN,
     sScan: SSCAN,
+    STRLEN,
+    strLen: STRLEN,
     SUNION,
     sUnion: SUNION,
     SUNIONSTORE,

lib/test-utils.ts

@@ -50,9 +50,9 @@ async function spawnPasswordServer(): Promise<void> {
 }
 
 async function spawnOpenCluster(): Promise<void> {
-    TEST_REDIS_CLUSTERES[TestRedisClusters.OPEN] = [{
-        port: (await spawnRedisCluster(TestRedisClusters.OPEN, 3))[0]
-    }];
+    TEST_REDIS_CLUSTERES[TestRedisClusters.OPEN] = (await spawnRedisCluster(TestRedisClusters.OPEN, 3)).map(port => ({
+        port
+    }));
 }
 
 export function itWithClient(type: TestRedisServers, title: string, fn: (client: RedisClientType<RedisModules, RedisLuaScripts>) => Promise<void>): void {