feat: support parsing expect value of ui validator

docs/CHANGELOG.md

@@ -23,6 +23,7 @@ UI related:
 - fix: add compatible support for indicating options separately at the `MobileAction` level
 - fix: use Override size if existed, otherwise use Physical size (android devices)
 - fix: add default options for `swipe_to_tap_app` action
+- refactor: ui validation methods, support parsing expect value
 - fix: reuse the same request body during `GetImage` retry
 
 others:

hrp/runner.go

@@ -638,6 +638,23 @@ func (r *SessionRunner) ParseStepVariables(stepVariables map[string]interface{})
 	return parsedVariables, nil
 }
 
+func (r *SessionRunner) ParseStepValidators(iValidators []interface{}, stepVariables map[string]interface{}) ([]interface{}, error) {
+	var parsedValidators []interface{}
+	var err error
+	for _, iValidator := range iValidators {
+		validator, ok := iValidator.(Validator)
+		if !ok {
+			return nil, errors.New("validator type error")
+		}
+		validator.Expect, err = r.caseRunner.parser.Parse(validator.Expect, stepVariables)
+		if err != nil {
+			return nil, errors.Wrap(err, "failed to parse validator expect")
+		}
+		parsedValidators = append(parsedValidators, validator)
+	}
+	return parsedValidators, nil
+}
+
 // InitWithParameters updates session variables with given parameters.
 // this is used for data driven
 func (r *SessionRunner) InitWithParameters(parameters map[string]interface{}) {

hrp/step_mobile_ui.go

@@ -656,7 +656,11 @@ func runStepMobileUI(s *SessionRunner, step *TStep) (stepResult *StepResult, err
 	}
 
 	// validate
-	validateResults, err := validateUI(uiDriver, step.Validators)
+	stepValidators, err := s.ParseStepValidators(step.Validators, stepVariables)
+	if err != nil {
+		return
+	}
+	validateResults, err := validateUI(uiDriver, stepValidators)
 	if err != nil {
 		if !code.IsErrorPredefined(err) {
 			err = errors.Wrap(code.MobileUIValidationError, err.Error())