public void ShouldReturnValueFromCacheIfPresent()
{
// Arrange
AutoFixtureValuesHandler sut = CreateSutWithMockedDependencies();
var target = Substitute.For <IInterfaceWithParameterlessMethod>();
var call = CallHelper.CreateCallMock(() => target.Method());
var callSpec = Substitute.For <ICallSpecification>();
sut.CallSpecificationFactory.CreateFrom(call, MatchArgs.AsSpecifiedInCall).Returns(callSpec);
var cachedResult = "cachedResult";
CallResultData ignored;
sut.ResultCache.TryGetResult(call, out ignored)
.Returns(c =>
{
c[1] = new CallResultData(Maybe.Just <object>(cachedResult),
Enumerable.Empty <CallResultData.ArgumentValue>());
return(true);
});
// Act
var actualResult = sut.Handle(call);
// Assert
sut.ResultResolver.DidNotReceive().ResolveResult(Arg.Any <ICall>());
Assert.True(actualResult.HasReturnValue);
Assert.Equal(cachedResult, actualResult.ReturnValue);
}
public void ShouldNotUpdateModifiedRefArgument()
{
// Fixture setup
AutoFixtureValuesHandler sut = CreateSutWithMockedDependencies();
var target = Substitute.For <IInterfaceWithRefVoidMethod>();
int origValue = 10;
var call = CallHelper.CreateCallMock(() => target.Method(ref origValue));
call.GetArguments()[0] = 42;
var callArgs = call.GetArguments();
sut.ResultResolver
.ResolveResult(call)
.Returns(
new CallResultData(
Maybe.Nothing <object>(),
new[] { new CallResultData.ArgumentValue(0, 84) }));
// Exercise system
sut.Handle(call);
// Verify outcome
Assert.Equal(42, callArgs[0]);
// Teardown
}
public void ShouldNotUpdateModifiedOutArgument()
{
// Arrange
AutoFixtureValuesHandler sut = CreateSutWithMockedDependencies();
var target = Substitute.For <IInterfaceWithOutVoidMethod>();
int origValue;
var call = CallHelper.CreateCallMock(() => target.Method(out origValue));
call.GetArguments()[0] = 42;
sut.ResultResolver
.ResolveResult(call)
.Returns(
new CallResultData(
Maybe.Nothing <object>(),
new[] { new CallResultData.ArgumentValue(0, 84) }));
// Act
sut.Handle(call);
// Assert
Assert.Equal(42, call.GetArguments()[0]);
}
public void ShouldNotReturnValueIfOmitted()
{
// Arrange
var specimenContext = Substitute.For <ISpecimenContext>();
var sut = new CallResultResolver(specimenContext);
var target = Substitute.For <IInterfaceWithParameterlessMethod>();
var call = CallHelper.CreateCallMock(() => target.Method());
specimenContext.Resolve(typeof(string)).Returns(new OmitSpecimen());
// Act
var result = sut.ResolveResult(call);
// Assert
Assert.False(result.ReturnValue.HasValue());
}
public void ShouldNotSetPropertyIfResultNotResolved()
{
// Arrange
AutoFixtureValuesHandler sut = CreateSutWithMockedDependencies();
var target = Substitute.For <IInterfaceWithProperty>();
var call = CallHelper.CreatePropertyGetterCallMock(() => target.Property);
sut.ResultResolver.ResolveResult(call).Returns(
new CallResultData(Maybe.Nothing <object>(), Enumerable.Empty <CallResultData.ArgumentValue>()));
// Act
var result = sut.Handle(call);
// Assert
Assert.False(result.HasReturnValue);
}
public void ShouldCacheResolvedValue()
{
// Arrange
AutoFixtureValuesHandler sut = CreateSutWithMockedDependencies();
var target = Substitute.For <IInterfaceWithParameterlessMethod>();
var call = CallHelper.CreateCallMock(() => target.Method());
var callResult =
new CallResultData(Maybe.Nothing <object>(), Enumerable.Empty <CallResultData.ArgumentValue>());
sut.ResultResolver.ResolveResult(call).Returns(callResult);
// Act
sut.Handle(call);
// Assert
sut.ResultCache.Received().AddResult(Arg.Any <ICallSpecification>(), callResult);
}
public void ShouldNotReturnValueIfOmitted()
{
// Fixture setup
var specimenContext = Substitute.For <ISpecimenContext>();
var sut = new CallResultResolver(specimenContext);
var target = Substitute.For <IInterfaceWithParameterlessMethod>();
var call = CallHelper.CreateCallMock(() => target.Method());
specimenContext.Resolve(typeof(string)).Returns(new OmitSpecimen());
// Exercise system
var result = sut.ResolveResult(call);
// Verify outcome
Assert.False(result.ReturnValue.HasValue());
// Teardown
}
public void ShouldResolveRefParameterValue()
{
// Arrange
var specimenContext = Substitute.For <ISpecimenContext>();
var sut = new CallResultResolver(specimenContext);
var target = Substitute.For <IInterfaceWithRefIntMethod>();
int passedValue = 1;
var call = CallHelper.CreateCallMock(() => target.Method(ref passedValue));
specimenContext.Resolve(typeof(int)).Returns(42);
// Act
var callResult = sut.ResolveResult(call);
// Assert
Assert.Single(callResult.ArgumentValues);
Assert.Equal(0, callResult.ArgumentValues.First().Index);
Assert.Equal(42, callResult.ArgumentValues.First().Value);
}
public void ShouldNotResolveArgumentValueIfOmitted()
{
// Arrange
var specimenContext = Substitute.For <ISpecimenContext>();
var sut = new CallResultResolver(specimenContext);
var target = Substitute.For <IInterfaceWithRefIntMethod>();
int ignored = 0;
var call = CallHelper.CreateCallMock(() => target.Method(ref ignored));
specimenContext.Resolve(typeof(int)).Returns(new OmitSpecimen());
// Act
var result = sut.ResolveResult(call);
// Assert
Assert.True(result.ReturnValue.HasValue());
Assert.Empty(result.ArgumentValues);
}
public void ShouldUseTypeRequestToResolveReturnValue()
{
// Arrange
var specimenContext = Substitute.For <ISpecimenContext>();
var sut = new CallResultResolver(specimenContext);
var target = Substitute.For <IInterfaceWithParameterlessMethod>();
var call = CallHelper.CreateCallMock(() => target.Method());
var returnValue = "returnResult";
specimenContext.Resolve(typeof(string)).Returns(returnValue);
// Act
var callResult = sut.ResolveResult(call);
// Assert
Assert.True(callResult.ReturnValue.HasValue());
Assert.Equal(returnValue, callResult.ReturnValue.ValueOrDefault());
}
public void ShouldUseCorrectSpecForValueCaching()
{
// Arrange
AutoFixtureValuesHandler sut = CreateSutWithMockedDependencies();
var target = Substitute.For <IInterfaceWithParameterlessMethod>();
var call = CallHelper.CreateCallMock(() => target.Method());
var callSpec = Substitute.For <ICallSpecification>();
sut.CallSpecificationFactory.CreateFrom(call, MatchArgs.AsSpecifiedInCall).Returns(callSpec);
sut.ResultResolver.ResolveResult(call).Returns(
new CallResultData(Maybe.Nothing <object>(), Enumerable.Empty <CallResultData.ArgumentValue>()));
// Act
sut.Handle(call);
// Assert
sut.ResultCache.Received().AddResult(callSpec, Arg.Any <CallResultData>());
}
public void ShouldReturnResolvedValue()
{
// Arrange
AutoFixtureValuesHandler sut = CreateSutWithMockedDependencies();
var target = Substitute.For <IInterfaceWithParameterlessMethod>();
var call = CallHelper.CreateCallMock(() => target.Method());
var callResult = "callResult";
sut.ResultResolver.ResolveResult(call).Returns(new CallResultData(
Maybe.Just <object>(callResult),
Enumerable.Empty <CallResultData.ArgumentValue>()));
// Act
var actualResult = sut.Handle(call);
// Assert
Assert.True(actualResult.HasReturnValue);
Assert.Equal(callResult, actualResult.ReturnValue);
}
public void ShouldSetOutArgumentValue()
{
// Arrange
var sut = CreateSutWithMockedDependencies();
var target = Substitute.For <IInterfaceWithOutVoidMethod>();
int ignored;
var call = CallHelper.CreateCallMock(() => target.Method(out ignored));
var callResult = new CallResultData(
Maybe.Nothing <object>(),
new[] { new CallResultData.ArgumentValue(0, 42) });
sut.ResultResolver.ResolveResult(call).Returns(callResult);
// Act
sut.Handle(call);
// Assert
Assert.Equal(42, call.GetArguments()[0]);
}
public void ShouldUsePropertyInfoRequestToResolvePropertyValue()
{
// Arrange
var specimenContext = Substitute.For <ISpecimenContext>();
var sut = new CallResultResolver(specimenContext);
var target = Substitute.For <IInterfaceWithProperty>();
var call = CallHelper.CreatePropertyGetterCallMock(() => target.Property);
var propertyInfo = typeof(IInterfaceWithProperty).GetProperty(nameof(IInterfaceWithProperty.Property));
var retValue = "returnValue";
specimenContext.Resolve(propertyInfo).Returns(retValue);
// Act
var result = sut.ResolveResult(call);
// Assert
Assert.True(result.ReturnValue.HasValue());
Assert.Equal(retValue, result.ReturnValue.ValueOrDefault());
}
public void ShouldNotResolveArgumentValueIfOmitted()
{
// Fixture setup
var specimenContext = Substitute.For <ISpecimenContext>();
var sut = new CallResultResolver(specimenContext);
var target = Substitute.For <IInterfaceWithRefIntMethod>();
int _ = 0;
var call = CallHelper.CreateCallMock(() => target.Method(ref _));
specimenContext.Resolve(typeof(int)).Returns(new OmitSpecimen());
// Exercise system
var result = sut.ResolveResult(call);
// Verify outcome
Assert.True(result.ReturnValue.HasValue());
Assert.Empty(result.ArgumentValues);
// Teardown
}
public void ShouldResolveOutParameterValue()
{
// Fixture setup
var specimenContext = Substitute.For <ISpecimenContext>();
var sut = new CallResultResolver(specimenContext);
var target = Substitute.For <IInterfaceWithParameterAndOutVoidMethod>();
int _;
var call = CallHelper.CreateCallMock(() => target.Method(null, out _));
specimenContext.Resolve(typeof(int)).Returns(42);
// Exercise system
var callResult = sut.ResolveResult(call);
// Verify outcome
Assert.Single(callResult.ArgumentValues);
Assert.Equal(1, callResult.ArgumentValues.First().Index);
Assert.Equal(42, callResult.ArgumentValues.First().Value);
// Teardown
}
public void ShouldSetOutArgumentValue()
{
// Fixture setup
var sut = CreateSutWithMockedDependencies();
var target = Substitute.For <IInterfaceWithOutVoidMethod>();
int _;
var call = CallHelper.CreateCallMock(() => target.Method(out _));
var callResult = new CallResultData(
Maybe.Nothing <object>(),
new[] { new CallResultData.ArgumentValue(0, 42) });
sut.ResultResolver.ResolveResult(call).Returns(callResult);
// Exercise system
sut.Handle(call);
// Verify outcome
Assert.Equal(42, call.GetArguments()[0]);
// Teardown
}