feat: add hstrlen command for hash (#2843)

* feat: add hstrlen command for hash

Signed-off-by: rfyiamcool <rfyiamcool@163.com>

* feat: add hstrlen command for hash

Signed-off-by: rfyiamcool <rfyiamcool@163.com>

---------

Signed-off-by: rfyiamcool <rfyiamcool@163.com>
Co-authored-by: Nedyalko Dyakov <nedyalko.dyakov@gmail.com>

Author: rfyiamcool

commands_test.go

@@ -2626,6 +2626,23 @@ var _ = Describe("Commands", func() {
 			))
 		})
 
+		It("should HStrLen", func() {
+			hSet := client.HSet(ctx, "hash", "key", "hello")
+			Expect(hSet.Err()).NotTo(HaveOccurred())
+
+			hStrLen := client.HStrLen(ctx, "hash", "key")
+			Expect(hStrLen.Err()).NotTo(HaveOccurred())
+			Expect(hStrLen.Val()).To(Equal(int64(len("hello"))))
+
+			nonHStrLen := client.HStrLen(ctx, "hash", "keyNon")
+			Expect(hStrLen.Err()).NotTo(HaveOccurred())
+			Expect(nonHStrLen.Val()).To(Equal(int64(0)))
+
+			hDel := client.HDel(ctx, "hash", "key")
+			Expect(hDel.Err()).NotTo(HaveOccurred())
+			Expect(hDel.Val()).To(Equal(int64(1)))
+		})
+
 		It("should HExpire", Label("hash-expiration", "NonRedisEnterprise"), func() {
 			SkipBeforeRedisVersion(7.4, "doesn't work with older redis stack images")
 			res, err := client.HExpire(ctx, "no_such_key", 10*time.Second, "field1", "field2", "field3").Result()
@@ -2642,6 +2659,7 @@ var _ = Describe("Commands", func() {
 			Expect(res).To(Equal([]int64{1, 1, -2}))
 		})
 
+
 		It("should HPExpire", Label("hash-expiration", "NonRedisEnterprise"), func() {
 			SkipBeforeRedisVersion(7.4, "doesn't work with older redis stack images")
 			res, err := client.HPExpire(ctx, "no_such_key", 10*time.Second, "field1", "field2", "field3").Result()

hash_commands.go

@@ -23,6 +23,7 @@ type HashCmdable interface {
 	HVals(ctx context.Context, key string) *StringSliceCmd
 	HRandField(ctx context.Context, key string, count int) *StringSliceCmd
 	HRandFieldWithValues(ctx context.Context, key string, count int) *KeyValueSliceCmd
+	HStrLen(ctx context.Context, key, field string) *IntCmd
 	HExpire(ctx context.Context, key string, expiration time.Duration, fields ...string) *IntSliceCmd
 	HExpireWithArgs(ctx context.Context, key string, expiration time.Duration, expirationArgs HExpireArgs, fields ...string) *IntSliceCmd
 	HPExpire(ctx context.Context, key string, expiration time.Duration, fields ...string) *IntSliceCmd
@@ -190,6 +191,11 @@ func (c cmdable) HScan(ctx context.Context, key string, cursor uint64, match str
 	return cmd
 }
 
+func (c cmdable) HStrLen(ctx context.Context, key, field string) *IntCmd {
+	cmd := NewIntCmd(ctx, "hstrlen", key, field)
+	_ = c(ctx, cmd)
+	return cmd
+}
 func (c cmdable) HScanNoValues(ctx context.Context, key string, cursor uint64, match string, count int64) *ScanCmd {
 	args := []interface{}{"hscan", key, cursor}
 	if match != "" {