Support COMMAND LIST (#2013)

* Support COMMAND LIST

* Update COMMAND_LIST.spec.ts

* add version check

* clean code

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

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

@@ -0,0 +1,56 @@
+import { strict as assert } from 'assert';
+import testUtils, { GLOBAL } from '../test-utils';
+import { transformArguments, FilterBy } from './COMMAND_LIST';
+
+describe('COMMAND LIST', () => {
+    testUtils.isVersionGreaterThanHook([7, 0]);
+
+    describe('transformArguments', () => {
+        it('simple', () => {
+            assert.deepEqual(
+                transformArguments(),
+                ['COMMAND', 'LIST']
+            );
+        });
+
+        describe('with FILTERBY', () => {
+            it('MODULE', () => {
+                assert.deepEqual(
+                    transformArguments({
+                        filterBy: FilterBy.MODULE,
+                        value: 'json'
+                    }),
+                    ['COMMAND', 'LIST', 'FILTERBY', 'MODULE', 'json']
+                );
+            });
+
+            it('ACLCAT', () => {
+                assert.deepEqual(
+                    transformArguments({
+                        filterBy: FilterBy.ACLCAT,
+                        value: 'admin'
+                    }),
+                    ['COMMAND', 'LIST', 'FILTERBY', 'ACLCAT', 'admin']
+                );
+            });
+
+            it('PATTERN', () => {
+                assert.deepEqual(
+                    transformArguments({
+                        filterBy: FilterBy.PATTERN,
+                        value: 'a*'
+                    }),
+                    ['COMMAND', 'LIST', 'FILTERBY', 'PATTERN', 'a*']
+                );
+            });
+        });
+    });
+
+    testUtils.testWithClient('client.commandList', async client => {
+        const commandList = await client.commandList();
+        assert.ok(Array.isArray(commandList));
+        for (const command of commandList) {
+            assert.ok(typeof command === 'string');
+        }
+    }, GLOBAL.SERVERS.OPEN);
+});

packages/client/lib/commands/COMMAND_LIST.ts

@@ -0,0 +1,31 @@
+import { RedisCommandArguments } from '.';
+
+export const IS_READ_ONLY = true;
+
+export enum FilterBy {
+    MODULE = 'MODULE',
+    ACLCAT = 'ACLCAT',
+    PATTERN = 'PATTERN'
+}
+
+interface Filter {
+    filterBy: FilterBy;
+    value: string;
+}
+
+
+export function transformArguments(filter?: Filter): RedisCommandArguments {
+    const args = ['COMMAND', 'LIST'];
+
+    if (filter) {
+        args.push(
+            'FILTERBY',
+            filter.filterBy,
+            filter.value
+        );
+    }
+
+    return args;
+}
+
+export declare function transformReply(): Array<string>;