public void Validate_OnNonEmptyString()
{
// Arrange
var rawTopic = TestUtils.GenerateSingleValidTopic();
var rule = new MustNotBeBlank();
// Act
Action validatingRawTopic = () =>
rule.Validate(rawTopic);
// Assert
validatingRawTopic.Should()
.NotThrow <EmptyTopicException>(
"because a topic with a valid value should not break the rule");
}
public void Validate_OnEmptyString()
{
// Arrange
var rawTopic = string.Empty;
var rule = new MustNotBeBlank();
// Act
Action validatingRawTopic = () =>
rule.Validate(rawTopic);
// Assert
validatingRawTopic.Should()
.Throw <EmptyTopicException>(
"because an empty topic should break the rule");
}
public void Validate_OnNullString()
{
// Arrange
string rawTopic = null;
var rule = new MustNotBeBlank();
// Act
// ReSharper disable once ExpressionIsAlwaysNull
Action validatingRawTopic = () =>
rule.Validate(rawTopic);
// Assert
validatingRawTopic.Should()
.Throw <EmptyTopicException>(
"because an null topic should break the rule");
}
public void Validate_OnBlankString()
{
// Arrange
var whitespaceCount = Fixture.Create <int>() + 1;
var rawTopic = new string(' ', whitespaceCount);
var rule = new MustNotBeBlank();
// Act
Action validatingRawTopic = () =>
rule.Validate(rawTopic);
// Assert
validatingRawTopic.Should()
.Throw <EmptyTopicException>(
"because a blank topic should break the rule");
}
