public void Topic_FromMinimalTopic()
{
// Arrange
var minimalRawTopic = Mqtt.Topic.Separator.ToString();
// Act
var minimalTopic = new MqttTopicBuilder.Builder.Topic(minimalRawTopic);
// Assert
minimalTopic.Value
.Should()
.Be(Mqtt.Topic.Separator.ToString());
}
public void Topic_FromInvalidRawTopic()
{
// Arrange
var invalidRawTopic = $"{Mqtt.Topic.Separator}{Mqtt.Topic.Separator}";
// Act
Action creatingInvalidTopic = () =>
_ = new MqttTopicBuilder.Builder.Topic(invalidRawTopic);
// Assert
creatingInvalidTopic.Should()
.Throw <EmptyTopicException>("because two consecutive separators will result in an empty topic");
}
public void Conversion_ExplicitFromTopic()
{
// Arrange
var rawTopic = TestUtils.GenerateValidTopic();
var topic = new MqttTopicBuilder.Builder.Topic(rawTopic);
// Act
var rawTopicValue = (string)topic;
// Assert
rawTopicValue.Should()
.Be(rawTopic,
"because a topic should have been created using the initial raw value");
}
public void Topic_EqualityCheckBasedOnValue()
{
// Arrange
var rawTopic = TestUtils.GenerateValidTopic();
var firstTopic = new MqttTopicBuilder.Builder.Topic(rawTopic);
var secondTopic = new MqttTopicBuilder.Builder.Topic(rawTopic);
// Act
var result = firstTopic == secondTopic;
// Assert
result.Should()
.BeTrue("because both topics are holding the same values");
}
public void Topic_FromValidRawTopic()
{
// Arrange
var validRawTopic = TestUtils.GenerateValidTopic();
// Act
var validTopic = new MqttTopicBuilder.Builder.Topic(validRawTopic);
// Assert
validTopic.Value.Should()
.Be(validRawTopic, "because a valid value will not be altered");
validTopic.Levels.Should()
.Be(
validRawTopic.Split(Mqtt.Topic.Separator).Length,
"because the same number of level is conserved");
}
public void FromString_FromEmptyTopic()
{
// Arrange
var emptyTopic = string.Empty;
// Act
var topicBuilt = new MqttTopicBuilder.Builder.Topic(emptyTopic);
// Assert
topicBuilt.Value
.Should()
.Be(Mqtt.Topic.Separator.ToString(),
"because an empty string will result in the smallest valid topic");
topicBuilt.Levels
.Should()
.Be(1, "because there is only one level, the smallest one");
}
public void Topic_FromValidRawTopicWithTrailingSeparator()
{
// Arrange
var validRawTopic = TestUtils.GenerateValidTopic();
var validRawTopicWithTrailingSeparator = validRawTopic + Mqtt.Topic.Separator;
// Act
var validTopic = new MqttTopicBuilder.Builder.Topic(validRawTopicWithTrailingSeparator);
// Assert
validTopic.Value.Should()
.Be(validRawTopic, "because the separator has been trimmed");
validTopic.Levels.Should()
.Be(
validRawTopicWithTrailingSeparator.Split(Mqtt.Topic.Separator).Length - 1,
"because the trailing separator has been removed");
}
