public void ValidateIf_NodeIsEmpty_IsValid()
{
var note = MakeNote(@"
<?xml version=""1.0"" encoding=""utf-8""?>
<note>
<from>Bob</from>
<to>Alice</to>
<subject>Salutation</subject>
<body></body>
</note>");
var validateIf = new ValidateIf((doc) => doc.Evaluate <string>(new XPath("/note/subject")) == "Salutation", (value) => value.StartsWith("Hi"));
var validations = MakeValidator(new XPath("/note/body"), validateIf);
var validator = new CheckDocument(validations);
ValidationResult results = validator.Validate(note);
Assert.IsTrue(results.IsValid);
}
public void ValidateIf_ConditionIsTrueButPredicateIsNot_AddsXPathInMessage()
{
var note = MakeNote(@"
<?xml version=""1.0"" encoding=""utf-8""?>
<note>
<from>Bob</from>
<to>Alice</to>
<subject>Salutation</subject>
<body>ThisValueDoesNotStartWithHiSoPredicateIsNotTrue</body>
</note>");
var bodyXPath = "/note/body";
var validateIf = new ValidateIf((doc) => doc.Evaluate <string>(new XPath("/note/subject")) == "Salutation", (value) => value.StartsWith("Hi"));
var validations = MakeValidator(new XPath(bodyXPath), validateIf);
var validator = new CheckDocument(validations);
ValidationResult results = validator.Validate(note);
var message = results.Errors.FirstOrDefault()?.ErrorMessage;
Assert.IsNotNull(message);
StringAssert.Contains(bodyXPath, message);
}