/// <summary>
/// Invokes the given delegate when the setup method is invoked, typically used
/// to access and set ref/out arguments in a typed fashion. Used in combination
/// with <see cref="SetupExtension.Setup{TDelegate}(object, TDelegate)"/>.
/// </summary>
/// <typeparam name="TDelegate">The lambda to invoke when the setup method runs.</typeparam>
/// <param name="target">The setup being performed.</param>
/// <param name="handler">The lambda to invoke when the setup is matched.</param>
public static void Returns <TDelegate>(this ISetup <TDelegate> target, TDelegate handler)
{
using (new SetupScope())
{
var @delegate = handler as Delegate;
// Simulate Any<T> matchers for each member parameter
var parameters = @delegate.Method.GetParameters();
var arguments = new object[parameters.Length];
var defaultValue = new DefaultValue(false);
for (var i = 0; i < arguments.Length; i++)
{
var parameter = parameters[i];
MockSetup.Push(new AnyMatcher(parameter.IsOut ? parameter.ParameterType.GetElementType() : parameter.ParameterType));
if (!parameter.IsOut)
{
arguments[i] = defaultValue.For(parameter.ParameterType);
}
}
target.Delegate.DynamicInvoke(arguments);
// Now we'd have a setup in place and an actual invocation.
var setup = MockContext.CurrentSetup;
if (setup != null)
{
setup.Invocation.Target
.GetMock()
.GetPipeline(setup)
.Behaviors.Add(new ReturnsDelegateBehavior(@delegate));
}
}
}
/// <summary>
/// Invokes the given delegate when the method being set up is invoked, typically used
/// to access and set ref/out arguments in a typed fashion. Used in combination
/// with <see cref="SetupExtension.Setup{TDelegate}(object, TDelegate)"/>.
/// </summary>
/// <typeparam name="TDelegate">The lambda to invoke when the setup method runs.</typeparam>
/// <param name="target">The setup being performed.</param>
/// <param name="handler">The lambda to invoke when the setup is matched.</param>
public static void Returns <TDelegate>(this ISetup <TDelegate> target, TDelegate handler)
{
if (handler is not Delegate @delegate)
{
throw new ArgumentException(ThisAssembly.Strings.Returns.DelegateExpected, nameof(handler));
}
using (new SetupScope())
{
// Simulate Any<T> matchers for each member parameter
var parameters = @delegate.Method.GetParameters();
object?[] arguments = new object[parameters.Length];
var defaultValue = new DefaultValueProvider(false);
for (var i = 0; i < arguments.Length; i++)
{
var parameter = parameters[i];
MockSetup.Push(new AnyMatcher(parameter.IsOut ? parameter.ParameterType.GetElementType() : parameter.ParameterType));
if (!parameter.IsOut)
{
arguments[i] = defaultValue.GetDefault(parameter.ParameterType);
}
}
target.Delegate.DynamicInvoke(arguments);
// Now we'd have a setup in place and an actual invocation.
var setup = MockContext.CurrentSetup;
if (setup != null)
{
setup.Invocation.Target
.AsMock()
.GetPipeline(setup)
.Behaviors.Add(new ReturnsDelegateBehavior(@delegate));
}
}
}
/// <summary> /// Matches any value that is not equal to the provided constant value. /// </summary> /// <typeparam name="T">The type of the argument.</typeparam> public static T Not <T>(T value) => MockSetup.Push <T>(new NotMatcher <T>(value));
/// <summary> /// Matches a value of the given type if it satisfies the specified condition. /// </summary> /// <typeparam name="T">The type of the argument.</typeparam> /// <param name="condition">The condition to check against actual invocation values.</param> public static T Any <T>(Func <T, bool> condition) => MockSetup.Push <T>(new ConditionalMatcher <T>(condition));
/// <summary> /// Matches any value of the given type. /// </summary> /// <typeparam name="T">The type of the argument.</typeparam> public static T Any <T>() => MockSetup.Push <T>(AnyMatcher <T> .Default);