diff --git a/pkg/core/certmgr/internal/tester/args.go b/pkg/core/certmgr/internal/tester/args.go
index 9af1d559..0e64255b 100644
--- a/pkg/core/certmgr/internal/tester/args.go
+++ b/pkg/core/certmgr/internal/tester/args.go
@@ -1,85 +1,9 @@
 package tester
 
 import (
-	"flag"
-	"fmt"
+	"github.com/certimate-go/certimate/pkg/core/internal/tester"
 )
 
-type argsParser struct {
-	prefix string
-
-	keys []string
-	vals []any
-}
-
-func Args(prefix string) *argsParser {
-	return &argsParser{
-		prefix: prefix,
-		keys:   make([]string, 0),
-		vals:   make([]any, 0),
-	}
-}
-
-func (p *argsParser) DefineBool(value *bool, name string, defaultValue ...bool) {
-	var dvalue bool
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.BoolVar(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) DefineInt(value *int, name string, defaultValue ...int) {
-	var dvalue int
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.IntVar(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) DefineInt64(value *int64, name string, defaultValue ...int64) {
-	var dvalue int64
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.Int64Var(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) DefineString(value *string, name string, defaultValue ...string) {
-	var dvalue string
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.StringVar(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) Parse() {
-	flag.Parse()
-
-	fmt.Printf("Parsed args:\n")
-	for i, key := range p.keys {
-		val := p.vals[i]
-		if v, ok := val.(*bool); ok && v != nil {
-			val = *v
-		} else if v, ok := val.(*int); ok && v != nil {
-			val = *v
-		} else if v, ok := val.(*int64); ok && v != nil {
-			val = *v
-		} else if v, ok := val.(*string); ok && v != nil {
-			val = *v
-		}
-
-		fmt.Printf("    %s: %v\n", key, val)
-	}
+func Args(prefix string) tester.ArgsParser {
+	return tester.Args(prefix)
 }
diff --git a/pkg/core/deployer/internal/tester/args.go b/pkg/core/deployer/internal/tester/args.go
index 9af1d559..0e64255b 100644
--- a/pkg/core/deployer/internal/tester/args.go
+++ b/pkg/core/deployer/internal/tester/args.go
@@ -1,85 +1,9 @@
 package tester
 
 import (
-	"flag"
-	"fmt"
+	"github.com/certimate-go/certimate/pkg/core/internal/tester"
 )
 
-type argsParser struct {
-	prefix string
-
-	keys []string
-	vals []any
-}
-
-func Args(prefix string) *argsParser {
-	return &argsParser{
-		prefix: prefix,
-		keys:   make([]string, 0),
-		vals:   make([]any, 0),
-	}
-}
-
-func (p *argsParser) DefineBool(value *bool, name string, defaultValue ...bool) {
-	var dvalue bool
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.BoolVar(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) DefineInt(value *int, name string, defaultValue ...int) {
-	var dvalue int
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.IntVar(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) DefineInt64(value *int64, name string, defaultValue ...int64) {
-	var dvalue int64
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.Int64Var(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) DefineString(value *string, name string, defaultValue ...string) {
-	var dvalue string
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.StringVar(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) Parse() {
-	flag.Parse()
-
-	fmt.Printf("Parsed args:\n")
-	for i, key := range p.keys {
-		val := p.vals[i]
-		if v, ok := val.(*bool); ok && v != nil {
-			val = *v
-		} else if v, ok := val.(*int); ok && v != nil {
-			val = *v
-		} else if v, ok := val.(*int64); ok && v != nil {
-			val = *v
-		} else if v, ok := val.(*string); ok && v != nil {
-			val = *v
-		}
-
-		fmt.Printf("    %s: %v\n", key, val)
-	}
+func Args(prefix string) tester.ArgsParser {
+	return tester.Args(prefix)
 }
diff --git a/pkg/core/internal/tester/argsparser.go b/pkg/core/internal/tester/argsparser.go
new file mode 100644
index 00000000..e984ac39
--- /dev/null
+++ b/pkg/core/internal/tester/argsparser.go
@@ -0,0 +1,93 @@
+package tester
+
+import (
+	"flag"
+	"fmt"
+)
+
+type ArgsParser interface {
+	DefineBool(value *bool, name string, defaultValue ...bool)
+	DefineInt(value *int, name string, defaultValue ...int)
+	DefineInt64(value *int64, name string, defaultValue ...int64)
+	DefineString(value *string, name string, defaultValue ...string)
+	Parse()
+}
+
+type argsParser struct {
+	prefix string
+
+	keys []string
+	vals []any
+}
+
+func Args(prefix string) ArgsParser {
+	return &argsParser{
+		prefix: prefix,
+		keys:   make([]string, 0),
+		vals:   make([]any, 0),
+	}
+}
+
+func (p *argsParser) DefineBool(value *bool, name string, defaultValue ...bool) {
+	var dvalue bool
+	if len(defaultValue) > 0 {
+		dvalue = defaultValue[0]
+	}
+
+	flag.BoolVar(value, p.prefix+name, dvalue, "")
+	p.keys = append(p.keys, name)
+	p.vals = append(p.vals, value)
+}
+
+func (p *argsParser) DefineInt(value *int, name string, defaultValue ...int) {
+	var dvalue int
+	if len(defaultValue) > 0 {
+		dvalue = defaultValue[0]
+	}
+
+	flag.IntVar(value, p.prefix+name, dvalue, "")
+	p.keys = append(p.keys, name)
+	p.vals = append(p.vals, value)
+}
+
+func (p *argsParser) DefineInt64(value *int64, name string, defaultValue ...int64) {
+	var dvalue int64
+	if len(defaultValue) > 0 {
+		dvalue = defaultValue[0]
+	}
+
+	flag.Int64Var(value, p.prefix+name, dvalue, "")
+	p.keys = append(p.keys, name)
+	p.vals = append(p.vals, value)
+}
+
+func (p *argsParser) DefineString(value *string, name string, defaultValue ...string) {
+	var dvalue string
+	if len(defaultValue) > 0 {
+		dvalue = defaultValue[0]
+	}
+
+	flag.StringVar(value, p.prefix+name, dvalue, "")
+	p.keys = append(p.keys, name)
+	p.vals = append(p.vals, value)
+}
+
+func (p *argsParser) Parse() {
+	flag.Parse()
+
+	fmt.Printf("Parsed args:\n")
+	for i, key := range p.keys {
+		val := p.vals[i]
+		if v, ok := val.(*bool); ok && v != nil {
+			val = *v
+		} else if v, ok := val.(*int); ok && v != nil {
+			val = *v
+		} else if v, ok := val.(*int64); ok && v != nil {
+			val = *v
+		} else if v, ok := val.(*string); ok && v != nil {
+			val = *v
+		}
+
+		fmt.Printf("    %s: %v\n", key, val)
+	}
+}
diff --git a/pkg/core/notifier/internal/tester/args.go b/pkg/core/notifier/internal/tester/args.go
index 9af1d559..0e64255b 100644
--- a/pkg/core/notifier/internal/tester/args.go
+++ b/pkg/core/notifier/internal/tester/args.go
@@ -1,85 +1,9 @@
 package tester
 
 import (
-	"flag"
-	"fmt"
+	"github.com/certimate-go/certimate/pkg/core/internal/tester"
 )
 
-type argsParser struct {
-	prefix string
-
-	keys []string
-	vals []any
-}
-
-func Args(prefix string) *argsParser {
-	return &argsParser{
-		prefix: prefix,
-		keys:   make([]string, 0),
-		vals:   make([]any, 0),
-	}
-}
-
-func (p *argsParser) DefineBool(value *bool, name string, defaultValue ...bool) {
-	var dvalue bool
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.BoolVar(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) DefineInt(value *int, name string, defaultValue ...int) {
-	var dvalue int
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.IntVar(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) DefineInt64(value *int64, name string, defaultValue ...int64) {
-	var dvalue int64
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.Int64Var(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) DefineString(value *string, name string, defaultValue ...string) {
-	var dvalue string
-	if len(defaultValue) > 0 {
-		dvalue = defaultValue[0]
-	}
-
-	flag.StringVar(value, p.prefix+name, dvalue, "")
-	p.keys = append(p.keys, name)
-	p.vals = append(p.vals, value)
-}
-
-func (p *argsParser) Parse() {
-	flag.Parse()
-
-	fmt.Printf("Parsed args:\n")
-	for i, key := range p.keys {
-		val := p.vals[i]
-		if v, ok := val.(*bool); ok && v != nil {
-			val = *v
-		} else if v, ok := val.(*int); ok && v != nil {
-			val = *v
-		} else if v, ok := val.(*int64); ok && v != nil {
-			val = *v
-		} else if v, ok := val.(*string); ok && v != nil {
-			val = *v
-		}
-
-		fmt.Printf("    %s: %v\n", key, val)
-	}
+func Args(prefix string) tester.ArgsParser {
+	return tester.Args(prefix)
 }