public void PropertyMutation_Constructor_Should_SetCorrectProperties()
{
const double value = 2;
var propertyMutation = new PropertyMutation <Product, double>(value, x => x.Price);
propertyMutation.Value.Should().Be(value);
}
public void PropertyMutation_Should_HoldValidActions_WhenDouble()
{
const double value = 2.3;
const double incrementValue = 3.2;
var propertyMutation = new PropertyMutation <Product, double>(incrementValue, x => x.Price);
var product = new Product("test", value);
product.Price.Should().BeApproximately(value, 0.000001);
propertyMutation.GetApplyValueAction()(product);
product.Price.Should().BeApproximately(value + incrementValue, 0.000001);
propertyMutation.GetApplyValueAction()(product);
product.Price.Should().BeApproximately(value + incrementValue + incrementValue, 0.000001);
propertyMutation.GetRevertValueAction()(product);
product.Price.Should().BeApproximately(value + incrementValue, 0.000001);
}
public void PropertyMutation_Should_HoldValidActions_WhenInt()
{
const int value = 2;
const int incrementValue = 3;
var propertyMutation = new PropertyMutation <Product, int>(incrementValue, x => x.Available);
var product = new Product("test", value, value);
product.Available.Should().Be(value);
propertyMutation.GetApplyValueAction()(product);
product.Available.Should().Be(value + incrementValue);
propertyMutation.GetApplyValueAction()(product);
product.Available.Should().Be(value + incrementValue + incrementValue);
propertyMutation.GetRevertValueAction()(product);
product.Available.Should().Be(value + incrementValue);
}
