added test case for jwt_decode(token,secert).payload to return the pa…

…yload map

Signed-off-by: Sanskarzz <sanskar.gur@gmail.com>

pkg/scratch/scratch.go

@@ -52,3 +52,23 @@ func GetFormJWTToken(arguments []any) (map[string]interface{}, error) {
 	}
 	return out.(map[string]interface{}), nil
 }
+
+func GetFormJWTTokenPayload(arguments []any) (map[string]interface{}, error) {
+	vm := interpreter.NewInterpreter(nil, nil)
+	parser := parsing.NewParser()
+
+	// Construct JMESPath expression with arguments
+	arg1 := fmt.Sprintf("'%s'", arguments[0])
+	arg2 := fmt.Sprintf("'%s'", arguments[1])
+	statement := fmt.Sprintf("jwt_decode(%s, %s).payload", arg1, arg2)
+
+	compiled, err := parser.Parse(statement)
+	if err != nil {
+		return nil, fmt.Errorf("error on compiling , %w", err)
+	}
+	out, err := vm.Execute(compiled, arguments, interpreter.WithFunctionCaller(Caller))
+	if err != nil {
+		return nil, fmt.Errorf("error on execute , %w", err)
+	}
+	return out.(map[string]interface{}), nil
+}

pkg/scratch/scratch_test.go

@@ -75,3 +75,38 @@ func TestGetFormJWTToken(t *testing.T) {
 		})
 	}
 }
+
+func TestGetFormJWTTokenPayload(t *testing.T) {
+	type args struct {
+		arguments []any
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    map[string]interface{}
+		wantErr bool
+	}{
+		{
+			args: args{[]any{"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjIyNDEwODE1MzksIm5iZiI6MTUxNDg1MTEzOSwicm9sZSI6Imd1ZXN0Iiwic3ViIjoiWVd4cFkyVT0ifQ.ja1bgvIt47393ba_WbSBm35NrUhdxM4mOVQN8iXz8lk", "c2VjcmV0"}},
+			want: map[string]interface{}{
+				"exp":  2.241081539e+09,
+				"nbf":  1.514851139e+09,
+				"role": "guest",
+				"sub":  "YWxpY2U=",
+			},
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := GetFormJWTTokenPayload(tt.args.arguments)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("GetFormJWTTokenPayload() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("GetFormJWTTokenPayload() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}