public void Constructor_WithArguments_ExpectedValues()
{
// Setup
const string parameterName = "ParameterName";
var random = new Random(21);
double lowerLimit = random.NextDouble();
double value = random.NextDouble();
// Call
var rule = new ComparableParameterGreaterOrEqualToRule <double>(parameterName, value, lowerLimit);
// Assert
Assert.That(rule, Is.InstanceOf <ParameterRuleBase>());
}
public void Execute_WithValuesSatisfyingLimit_ReturnsValidResult(double offset)
{
// Setup
const string parameterName = "ParameterName";
var random = new Random(21);
double lowerLimit = random.NextDouble();
double value = lowerLimit + offset;
var rule = new ComparableParameterGreaterOrEqualToRule <double>(parameterName, value, lowerLimit);
// Precondition
Assert.That(lowerLimit.CompareTo(value), Is.LessThanOrEqualTo(0));
// Call
ValidationRuleResult result = rule.Execute();
// Assert
Assert.That(result, Is.SameAs(ValidationRuleResult.ValidResult));
}
public void Execute_WithValuesNotSatisfyingLimit_ReturnsInvalidResult(double offset)
{
// Setup
const string parameterName = "ParameterName";
var random = new Random(21);
double lowerLimit = random.NextDouble();
double invalidValue = lowerLimit + offset;
var rule = new ComparableParameterGreaterOrEqualToRule <double>(parameterName, invalidValue, lowerLimit);
// Precondition
Assert.That(lowerLimit.CompareTo(invalidValue), Is.GreaterThan(0));
// Call
ValidationRuleResult result = rule.Execute();
// Assert
Assert.That(result.IsValid, Is.False);
var expectedMessage = $"{parameterName} must be >= {lowerLimit}. Current value: {invalidValue}";
Assert.That(result.ValidationMessage, Is.EqualTo(expectedMessage));
}