public void GetAuditTrailType_ReturnsCorrectAuditTrailType() { Assert.Equal(AuditTrailType.Electronic, AttributeHelpers.GetAuditTrailType("ELECTRONIC")); Assert.Equal(AuditTrailType.Printed, AttributeHelpers.GetAuditTrailType("PRINTED")); Assert.Null(AttributeHelpers.GetAuditTrailType("")); Assert.Null(AttributeHelpers.GetAuditTrailType(null)); Assert.Null(AttributeHelpers.GetAuditTrailType("SOME_RANDOM_STRING")); }