public void ConditionDefaultsToTrueWhenNotProvided()
{
var service = new DecoratorService(typeof(string));
var context = DecoratorContext.Create(typeof(string), typeof(string), "A");
Assert.True(service.Condition(context));
}
public void CreateSetsContextToPreDecoratedState()
{
const string implementationInstance = "Initial";
var context = DecoratorContext.Create(typeof(string), typeof(string), implementationInstance);
Assert.Equal(typeof(string), context.ServiceType);
Assert.Equal(typeof(string), context.ImplementationType);
Assert.Equal(implementationInstance, context.CurrentInstance);
Assert.Empty(context.AppliedDecoratorTypes);
Assert.Empty(context.AppliedDecorators);
}
public void UpdateAddsDecoratorStateToContext()
{
const string implementationInstance = "Initial";
var context = DecoratorContext.Create(typeof(string), typeof(string), implementationInstance);
const string decoratorA = "DecoratorA";
context = context.UpdateContext(decoratorA);
Assert.Equal(decoratorA, context.CurrentInstance);
Assert.Equal(context.AppliedDecoratorTypes, new[] { typeof(string) });
Assert.Equal(context.AppliedDecorators, new[] { decoratorA });
const string decoratorB = "DecoratorB";
context = context.UpdateContext(decoratorB);
Assert.Equal(decoratorB, context.CurrentInstance);
Assert.Equal(context.AppliedDecoratorTypes, new[] { typeof(string), typeof(string) });
Assert.Equal(context.AppliedDecorators, new[] { decoratorA, decoratorB });
}