Add tests for IsValidString

internal/helpers/helpers_test.go

@@ -0,0 +1,33 @@
+package helpers
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestIsValidString(t *testing.T) {
+	var testCases = []struct {
+		name         string
+		checkString  string
+		validStrings []string
+		shouldPass   bool
+	}{
+		{
+			name:         "Ensure a valid string is valid",
+			checkString:  "test",
+			validStrings: []string{"test", "test2"},
+			shouldPass:   true},
+		{
+			name:         "Ensure an invalid string is not valid",
+			checkString:  "test",
+			validStrings: []string{"test2", "test3"},
+			shouldPass:   false},
+	}
+
+	for _, test := range testCases {
+		result := IsValidString(test.checkString, test.validStrings)
+
+		assert.Equal(t, test.shouldPass, result, test.name)
+	}
+}