public void SutIsContextualCommand()
{
// Fixture setup
var dummyCommand = new DelegatingGuardClauseCommand();
// Exercise system
var sut = new ReflectionExceptionUnwrappingCommand(dummyCommand);
// Verify outcome
Assert.IsAssignableFrom<IGuardClauseCommand>(sut);
// Teardown
}
public void ExecuteRethrowsNormalException()
{
// Fixture setup
var cmd = new DelegatingGuardClauseCommand { OnExecute = v => { throw new InvalidOperationException(); } };
var sut = new ReflectionExceptionUnwrappingCommand(cmd);
// Exercise system and verify outcome
var dummyValue = new object();
Assert.Throws<InvalidOperationException>(() =>
sut.Execute(dummyValue));
// Teardown
}
public void CommandIsCorrect()
{
// Fixture setup
var expectedCommand = new DelegatingGuardClauseCommand();
var sut = new ReflectionExceptionUnwrappingCommand(expectedCommand);
// Exercise system
IGuardClauseCommand result = sut.Command;
// Verify outcome
Assert.Equal(expectedCommand, result);
// Teardown
}
public void ExecuteUnwrapsAndThrowsInnerExceptionFromTargetInvocationException()
{
// Fixture setup
var expectedException = new InvalidOperationException();
var cmd = new DelegatingGuardClauseCommand { OnExecute = v => { throw new TargetInvocationException(expectedException); } };
var sut = new ReflectionExceptionUnwrappingCommand(cmd);
// Exercise system and verify outcome
var dummyValue = new object();
var e = Assert.Throws<InvalidOperationException>(() =>
sut.Execute(dummyValue));
Assert.Equal(expectedException, e);
// Teardown
}
public void ExecuteExecutesDecoratedCommand()
{
// Fixture setup
var mockVerified = false;
var expectedValue = new object();
var cmd = new DelegatingGuardClauseCommand { OnExecute = v => mockVerified = expectedValue.Equals(v) };
var sut = new ReflectionExceptionUnwrappingCommand(cmd);
// Exercise system
sut.Execute(expectedValue);
// Verify outcome
Assert.True(mockVerified, "Mock verified.");
// Teardown
}
private void Verify(IMethod method)
{
var parameters = (from pi in method.Parameters
select this.Builder.CreateAnonymous(GuardClauseAssertion.GetParameterType(pi))).ToList();
var i = 0;
foreach (var pi in method.Parameters)
{
var expansion = new IndexedReplacement <object>(i++, parameters);
var command = new MethodInvokeCommand(method, expansion, pi);
var unwrapper = new ReflectionExceptionUnwrappingCommand(command);
this.BehaviorExpectation.Verify(unwrapper);
}
}
/// <summary>
/// Verifies that a property has appripriate Guard Clauses in place.
/// </summary>
/// <param name="propertyInfo">The property.</param>
/// <remarks>
/// <para>
/// Exactly which Guard Clauses are verified is defined by
/// <see cref="BehaviorExpectation" />.
/// </para>
/// </remarks>
public override void Verify(PropertyInfo propertyInfo)
{
if (propertyInfo == null)
{
throw new ArgumentNullException("propertyInfo");
}
if (propertyInfo.GetSetMethod() == null)
{
return;
}
var owner = this.Builder.CreateAnonymous(propertyInfo.ReflectedType);
var command = new PropertySetCommand(propertyInfo, owner);
var unwrapper = new ReflectionExceptionUnwrappingCommand(command);
this.BehaviorExpectation.Verify(unwrapper);
}
/// <summary>
/// Verifies that a property has appropriate Guard Clauses in place.
/// </summary>
/// <param name="propertyInfo">The property.</param>
/// <remarks>
/// <para>
/// Exactly which Guard Clauses are verified is defined by
/// <see cref="BehaviorExpectation" />.
/// </para>
/// </remarks>
public override void Verify(PropertyInfo propertyInfo)
{
if (propertyInfo == null)
{
throw new ArgumentNullException("propertyInfo");
}
if (propertyInfo.GetSetMethod() == null)
{
return;
}
propertyInfo = this.ResolveUnclosedGenericType(propertyInfo);
var owner = this.CreateOwner(propertyInfo);
var command = new PropertySetCommand(propertyInfo, owner);
var unwrapper = new ReflectionExceptionUnwrappingCommand(command);
this.BehaviorExpectation.Verify(unwrapper);
}
private void Verify(IMethod method, bool isReturnValueIterator)
{
var parameters = this.GetParameters(method);
var i = 0;
foreach (var pi in method.Parameters)
{
var expansion = new IndexedReplacement <object>(i++, parameters);
var command = new MethodInvokeCommand(method, expansion, pi);
var unwrapper = new ReflectionExceptionUnwrappingCommand(command);
if (isReturnValueIterator)
{
var iteratorDecorator = new IteratorMethodInvokeCommand(unwrapper);
this.behaviorExpectation.Verify(iteratorDecorator);
}
else
{
this.BehaviorExpectation.Verify(unwrapper);
}
}
}
public void CreateExceptionReturnsCorrectResult()
{
// Fixture setup
var value = Guid.NewGuid().ToString();
var expected = new Exception();
var cmd = new DelegatingGuardClauseCommand { OnCreateException = v => value == v ? expected : new Exception() };
var sut = new ReflectionExceptionUnwrappingCommand(cmd);
// Exercise system
var result = sut.CreateException(value);
// Verify outcome
Assert.Equal(expected, result);
// Teardown
}
public void ContextTypeIsCorrect(Type type)
{
// Fixture setup
var cmd = new DelegatingGuardClauseCommand { RequestedType = type };
var sut = new ReflectionExceptionUnwrappingCommand(cmd);
// Exercise system
var result = sut.RequestedType;
// Verify outcome
Assert.Equal(type, result);
// Teardown
}
private void Verify(IMethod method, bool isReturnValueIterator)
{
var parameters = (from pi in method.Parameters
select this.Builder.CreateAnonymous(GuardClauseAssertion.GetParameterType(pi))).ToList();
var i = 0;
foreach (var pi in method.Parameters)
{
var expansion = new IndexedReplacement<object>(i++, parameters);
var command = new MethodInvokeCommand(method, expansion, pi);
var unwrapper = new ReflectionExceptionUnwrappingCommand(command);
if (isReturnValueIterator)
{
var iteratorDecorator = new IteratorMethodInvokeCommand(unwrapper);
this.behaviorExpectation.Verify(iteratorDecorator);
}
else
this.BehaviorExpectation.Verify(unwrapper);
}
}
/// <summary>
/// Verifies that a property has appripriate Guard Clauses in place.
/// </summary>
/// <param name="propertyInfo">The property.</param>
/// <remarks>
/// <para>
/// Exactly which Guard Clauses are verified is defined by
/// <see cref="BehaviorExpectation" />.
/// </para>
/// </remarks>
public override void Verify(PropertyInfo propertyInfo)
{
if (propertyInfo == null)
throw new ArgumentNullException("propertyInfo");
if (propertyInfo.GetSetMethod() == null)
return;
var owner = this.Builder.CreateAnonymous(propertyInfo.ReflectedType);
var command = new PropertySetCommand(propertyInfo, owner);
var unwrapper = new ReflectionExceptionUnwrappingCommand(command);
this.BehaviorExpectation.Verify(unwrapper);
}
private void Verify(IMethod method, bool isReturnValueIterator)
{
var parameters = this.GetParameters(method);
var i = 0;
foreach (var pi in method.Parameters)
{
var expansion = new IndexedReplacement<object>(i++, parameters);
var command = new MethodInvokeCommand(method, expansion, pi);
var unwrapper = new ReflectionExceptionUnwrappingCommand(command);
if (isReturnValueIterator)
{
var iteratorDecorator = new IteratorMethodInvokeCommand(unwrapper);
this.behaviorExpectation.Verify(iteratorDecorator);
}
else
this.BehaviorExpectation.Verify(unwrapper);
}
}
