fix(#284): zadd with opts argument does not work (#285)

redis.ts

@@ -1980,23 +1980,31 @@ class RedisImpl implements Redis {
   ) {
     const args: (string | number)[] = [key];
     if (Array.isArray(param1)) {
+      this.pushZAddOpts(args, param2 as ZAddOpts);
       args.push(...param1.flatMap((e) => e));
       opts = param2 as ZAddOpts;
     } else if (typeof param1 === "object") {
+      this.pushZAddOpts(args, param2 as ZAddOpts);
       for (const [member, score] of Object.entries(param1)) {
         args.push(score as number, member);
       }
-      opts = param2 as ZAddOpts;
     } else {
+      this.pushZAddOpts(args, opts);
       args.push(param1, param2 as string);
     }
+    return this.execIntegerReply("ZADD", ...args);
+  }
+
+  private pushZAddOpts(
+    args: (string | number)[],
+    opts?: ZAddOpts,
+  ): void {
     if (opts?.mode) {
       args.push(opts.mode);
     }
     if (opts?.ch) {
       args.push("CH");
     }
-    return this.execIntegerReply("ZADD", ...args);
   }
 
   zaddIncr(

tests/commands/sorted_set.ts

@@ -53,6 +53,23 @@ export async function zsetTests(
     );
   });
 
+  await run("zaddWithMode", async () => {
+    assertEquals(await client.zadd("key", 1, "1", { mode: "NX" }), 1);
+    assertEquals(await client.zadd("key", { "1": 1 }, { mode: "XX" }), 0);
+    assertEquals(
+      await client.zadd("key", [[1, "1"], [2, "2"]], { mode: "NX" }),
+      1,
+    );
+  });
+
+  await run("zaddWithCH", async () => {
+    assertEquals(await client.zadd("key", [[1, "foo"], [2, "bar"]]), 2);
+    assertEquals(
+      await client.zadd("key", { "foo": 1, "bar": 3, "baz": 4 }, { ch: true }),
+      2,
+    );
+  });
+
   await run("zcount", async () => {
     await client.zadd("key", { "1": 1, "2": 2 });
     assertEquals(await client.zcount("key", 0, 1), 1);