public void Validate_OnTopicShorterThanMaximumLimit()
{
// Arrange
const int length = Mqtt.Topic.MaxSubTopicLength / 2;
var rawTopic = new string(Fixture.Create <char>(), length);
var rule = new MustRespectMaximumLength();
// Act
Action validatingRawTopic = () =>
rule.Validate(rawTopic);
// Assert
validatingRawTopic.Should()
.NotThrow <TooLongTopicException>(
"because the topic is under the defined bound");
}
public void Validate_OnTopicWithExactSameLengthAsMaximumLimit()
{
// Arrange
const int length = Mqtt.Topic.MaxSubTopicLength;
var rawTopic = new string(Fixture.Create <char>(), length);
var rule = new MustRespectMaximumLength();
// Act
Action validatingRawTopic = () =>
rule.Validate(rawTopic);
// Assert
validatingRawTopic.Should()
.NotThrow <TooLongTopicException>(
"because the topic as reached the maximum limit but does not exceed it");
}
public void Validate_OnTopicLongerThanMaximumLimit()
{
// Arrange
var length = Fixture.Create <int>() + Mqtt.Topic.MaxSubTopicLength;
var rawTopic = new string(Fixture.Create <char>(), length);
var rule = new MustRespectMaximumLength();
// Act
Action validatingRawTopic = () =>
rule.Validate(rawTopic);
// Assert
validatingRawTopic.Should()
.Throw <TooLongTopicException>(
"because the topic is exceeding the maximum allowed size");
}