fix: zero ttl is ignored (#2349)

* fix: zero ttl is ignored

* Update SET.ts

* Update SET.ts

Co-authored-by: Leibale Eidelman <[email protected]>

Author: vonovak

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

@@ -13,45 +13,45 @@ describe('SET', () => {
 
         it('number', () => {
             assert.deepEqual(
-                transformArguments('key', 1),
-                ['SET', 'key', '1']
+                transformArguments('key', 0),
+                ['SET', 'key', '0']
             );
         });
 
         describe('TTL', () => {
             it('with EX', () => {
                 assert.deepEqual(
                     transformArguments('key', 'value', {
-                        EX: 1
+                        EX: 0
                     }),
-                    ['SET', 'key', 'value', 'EX', '1']
+                    ['SET', 'key', 'value', 'EX', '0']
                 );
             });
 
             it('with PX', () => {
                 assert.deepEqual(
                     transformArguments('key', 'value', {
-                        PX: 1
+                        PX: 0
                     }),
-                    ['SET', 'key', 'value', 'PX', '1']
+                    ['SET', 'key', 'value', 'PX', '0']
                 );
             });
 
             it('with EXAT', () => {
                 assert.deepEqual(
                     transformArguments('key', 'value', {
-                        EXAT: 1
+                        EXAT: 0
                     }),
-                    ['SET', 'key', 'value', 'EXAT', '1']
+                    ['SET', 'key', 'value', 'EXAT', '0']
                 );
             });
 
             it('with PXAT', () => {
                 assert.deepEqual(
                     transformArguments('key', 'value', {
-                        PXAT: 1
+                        PXAT: 0
                     }),
-                    ['SET', 'key', 'value', 'PXAT', '1']
+                    ['SET', 'key', 'value', 'PXAT', '0']
                 );
             });
 

packages/client/lib/commands/SET.ts

@@ -35,13 +35,13 @@ export function transformArguments(
         typeof value === 'number' ? value.toString() : value
     ];
 
-    if (options?.EX) {
+    if (options?.EX !== undefined) {
         args.push('EX', options.EX.toString());
-    } else if (options?.PX) {
+    } else if (options?.PX !== undefined) {
         args.push('PX', options.PX.toString());
-    } else if (options?.EXAT) {
+    } else if (options?.EXAT !== undefined) {
         args.push('EXAT', options.EXAT.toString());
-    } else if (options?.PXAT) {
+    } else if (options?.PXAT !== undefined) {
         args.push('PXAT', options.PXAT.toString());
     } else if (options?.KEEPTTL) {
         args.push('KEEPTTL');