public void IsValidChangedEventRaised_OnIsValidChange()
{
// Arrange
var startValue = "123456";
var sut = new ValidatableValue <string>
{
Value = startValue,
ValidationRules = new IValidationRule <string>[]
{
new StringLengthValidationRule("Length Error", 2, false, true),
new StringLengthValidationRule(_ERROR_MESSAGE, 5)
}
};
// Act
sut.IsValid.Should().BeTrue();
sut.IsNotValid.Should().BeFalse();
using (FluentAssertions.Events.IMonitor <ValidatableValue <string> > monitor = sut.Monitor())
{
sut.RaiseValidation();
// Assert
monitor.Should().Raise(nameof(ValidatableValue <string> .IsValidChanged))
.WithSender(sut)
.WithArgs <IsValidEventArgs>(t => t.IsValid == false);
}
}
public void SetValue_WithOneRule_AndInvalidValue_RaiseChanges()
{
// Arrange
var startValue = "Not empty";
string value = null;
var sut = new ValidatableValue <string>
{
ValidationRules = new IValidationRule <string>[]
{
new NullValidationRule <string>(_ERROR_MESSAGE)
},
Value = startValue
};
// Act
using (FluentAssertions.Events.IMonitor <ValidatableValue <string> > monitor = sut.Monitor())
{
sut.Value = value;
// Assert
monitor.Should().RaisePropertyChangeFor(t => t.Value);
monitor.Should().RaisePropertyChangeFor(t => t.Errors);
monitor.Should().RaisePropertyChangeFor(t => t.FirstError);
monitor.Should().RaisePropertyChangeFor(t => t.IsValid);
monitor.Should().RaisePropertyChangeFor(t => t.IsNotValid);
}
}
public void SetValue_WithTwoRule_AndInvalidValue_NotRaiseIfIsValidNotChanged()
{
// Arrange
var startValue = "1234"; // valid
var value = "1"; // invalid rule 1
var value2 = "123456"; // invalid rule 2
var sut = new ValidatableValue <string>
{
ValidationRules = new IValidationRule <string>[]
{
new StringLengthValidationRule("Length Error", 2, false, true),
new StringLengthValidationRule(_ERROR_MESSAGE, 5)
},
Value = startValue
};
// Act
sut.Value = value;
using (FluentAssertions.Events.IMonitor <ValidatableValue <string> > monitor = sut.Monitor())
{
sut.Value = value2;
// Assert
monitor.Should().RaisePropertyChangeFor(t => t.Value);
monitor.Should().RaisePropertyChangeFor(t => t.Errors);
monitor.Should().RaisePropertyChangeFor(t => t.FirstError);
monitor.Should().NotRaisePropertyChangeFor(t => t.IsValid);
monitor.Should().NotRaisePropertyChangeFor(t => t.IsNotValid);
}
}
public void SetValue_WithDifferentValue_TriggerPropertyChanged()
{
// Arrange
var value1 = Guid.NewGuid().ToString();
var value2 = Guid.NewGuid().ToString();
var sut = new ValidatableValue <string> {
Value = value1
};
// Act
using (FluentAssertions.Events.IMonitor <ValidatableValue <string> > monitor = sut.Monitor())
{
sut.Value = value2;
// Assert
monitor.Should().RaisePropertyChangeFor(t => t.Value);
}
}
