wip: validate yaml files

cmd/test/testCommandHelper.go

+package test
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/briandowns/spinner"
+	"github.com/datreeio/datree/bl/evaluation"
+	"github.com/datreeio/datree/bl/validation"
+)
+
+func createSpinner(text string, color string) *spinner.Spinner {
+	s := spinner.New(spinner.CharSets[9], 100*time.Millisecond)
+	s.Suffix = text
+	s.Color(color)
+	return s
+}
+
+func printEvaluationErrors(errors []*evaluation.Error) {
+	fmt.Println("The following files failed:")
+	for _, fileError := range errors {
+		fmt.Printf("\n\tFilename: %s\n\tError: %s\n---------------------", fileError.Filename, fileError.Message)
+	}
+	fmt.Println()
+}
+
+func handleInvalidFiles(invalidFilesChan chan *validation.InvalidFile) []*validation.InvalidFile {
+	time.Sleep(time.Millisecond * 10000)
+	var invalidFiles []*validation.InvalidFile
+	for invalidFile := range invalidFilesChan {
+		invalidFiles = append(invalidFiles, invalidFile)
+	}
+	return invalidFiles
+}