public SingleValueLinkTargetTests()
{
_actual = new LinkedSource();
_sut = (SingleValueLinkTarget <LinkedSource, Image>)LinkTargetFactory.Create <LinkedSource, Image>(
linkedSource => linkedSource.Image);
}
/// <summary>
/// Load and link polymorphic references or linked sources.
/// </summary>
public LoadLinkProtocolForLinkedSourceBuilder <TLinkedSource> LoadLinkPolymorphicList <TAbstractLinkTarget, TLink, TDiscriminant>(
Func <TLinkedSource, IEnumerable <TLink> > getLinks,
Expression <Func <TLinkedSource, List <TAbstractLinkTarget> > > getLinkTarget,
Func <TLink, TDiscriminant> getDiscriminant,
Action <IncludeSetBuilder <TLinkedSource, TAbstractLinkTarget, TLink, TDiscriminant> > includes, bool ignoreUnhandledCases = false)
{
if (getLinks == null)
{
throw new ArgumentNullException(nameof(getLinks));
}
if (getLinkTarget == null)
{
throw new ArgumentNullException(nameof(getLinkTarget));
}
if (getDiscriminant == null)
{
throw new ArgumentNullException(nameof(getDiscriminant));
}
if (includes == null)
{
throw new ArgumentNullException(nameof(includes));
}
return(LoadLinkPolymorphic(
getLinks,
LinkTargetFactory.Create(getLinkTarget),
getDiscriminant,
includes,
ignoreUnhandledCases
));
}
/// <summary>
/// Load and link a polymorphic reference or linked source.
/// </summary>
public LoadLinkProtocolForLinkedSourceBuilder <TLinkedSource> LoadLinkPolymorphic <TAbstractLinkTarget, TLink, TDiscriminant>(
Func <TLinkedSource, TLink> getLink,
Expression <Func <TLinkedSource, TAbstractLinkTarget> > getLinkTarget,
Func <TLink, TDiscriminant> getDiscriminant,
Action <IncludeSetBuilder <TLinkedSource, TAbstractLinkTarget, TLink, TDiscriminant> > includes)
{
if (getLink == null)
{
throw new ArgumentNullException(nameof(getLink));
}
if (getLinkTarget == null)
{
throw new ArgumentNullException(nameof(getLinkTarget));
}
if (getDiscriminant == null)
{
throw new ArgumentNullException(nameof(getDiscriminant));
}
if (includes == null)
{
throw new ArgumentNullException(nameof(includes));
}
return(LoadLinkPolymorphic(
ToGetLookupIdsForSingleValue(getLink),
LinkTargetFactory.Create(getLinkTarget),
getDiscriminant,
includes
));
}
public void Create_WithNestedGetter_ShouldThrow()
{
Action act = () => LinkTargetFactory.Create <ForLinkedTargetLinkedSource, string>(
linkedSource => linkedSource.SummaryImage.Alt);
var exception = Assert.Throws <LinkItException>(act);
Assert.Contains("ForLinkedTargetLinkedSource", exception.Message);
Assert.Contains("direct getter", exception.Message);
}
public void Test_WithReadOnlyProperty_ShouldThrow()
{
Action act = () => LinkTargetFactory.Create <ForLinkedTargetLinkedSource, Image>(
linkedSource => linkedSource.AReadOnlyImage);
var exception = Assert.Throws <ArgumentException>(act);
Assert.Contains("ForLinkedTargetLinkedSource/AReadOnlyImage", exception.Message);
Assert.Contains("read-write", exception.Message);
}
public void Test_WithPrivateSetter_ShouldThrow()
{
Action act = () => LinkTargetFactory.Create <ForLinkedTargetLinkedSource, Image>(
linkedSource => linkedSource.APrivateSetterImage);
var exception = Assert.Throws <LinkItException>(act);
Assert.Contains("ForLinkedTargetLinkedSource", exception.Message);
Assert.Contains("APrivateSetterImage", exception.Message);
Assert.Contains("read-write", exception.Message);
}
public void Test_WithFunc_ShouldThrow()
{
Action act = () => LinkTargetFactory.Create <ForLinkedTargetLinkedSource, Image>(
linkedSource => linkedSource.AnImageFunc()
);
var exception = Assert.Throws <LinkItException>(act);
Assert.Contains("ForLinkedTargetLinkedSource", exception.Message);
Assert.Contains("direct getter", exception.Message);
}
public void Test_WithExpression_ShouldThrow()
{
Action act = () => LinkTargetFactory.Create <ForLinkedTargetLinkedSource, Image>(
linkedSource => linkedSource.SummaryImage ?? new Image()
);
var exception = Assert.Throws <ArgumentException>(act);
Assert.Contains("ForLinkedTargetLinkedSource", exception.Message);
Assert.Contains("direct getter", exception.Message);
}
public void Create_LinkTargetShouldBeEquatable()
{
var summaryImage1 = LinkTargetFactory.Create <ForLinkedTargetLinkedSource, Image>(
linkedSource => linkedSource.SummaryImage);
var summaryImage2 = LinkTargetFactory.Create <ForLinkedTargetLinkedSource, Image>(
linkedSource => linkedSource.SummaryImage);
var anotherImage = LinkTargetFactory.Create <ForLinkedTargetLinkedSource, Image>(
linkedSource => linkedSource.AnotherImage);
Assert.True(summaryImage2.Equals(summaryImage1));
Assert.False(anotherImage.Equals(summaryImage1));
}
public void SetListTargetProperty()
{
var actual = new LinkedSourceWithList();
var sut = (MultiValueLinkTarget <LinkedSourceWithList, Image>)LinkTargetFactory.Create <LinkedSourceWithList, Image>(
linkedSource => linkedSource.Images);
sut.LazyInit(actual, 2);
sut.SetLinkTargetValue(actual, new Image {
Alt = "the-alt1"
}, 0);
sut.SetLinkTargetValue(actual, new Image {
Alt = "the-alt2"
}, 1);
Assert.Equal("the-alt1", actual.Images[0].Alt);
Assert.Equal("the-alt2", actual.Images[1].Alt);
}
/// <summary>
/// Load a reference by ID.
/// </summary>
public LoadLinkProtocolForLinkedSourceBuilder <TLinkedSource> LoadLinkReferencesByIds <TReference, TId>(
Func <TLinkedSource, IEnumerable <TId> > getLookupIds,
Expression <Func <TLinkedSource, IList <TReference> > > getLinkTarget)
{
if (getLookupIds == null)
{
throw new ArgumentNullException(nameof(getLookupIds));
}
if (getLinkTarget == null)
{
throw new ArgumentNullException(nameof(getLinkTarget));
}
return(LoadLinkReferencesByIds(
getLookupIds,
LinkTargetFactory.Create(getLinkTarget)
));
}
/// <summary>
/// Load a reference by ID.
/// </summary>
public LoadLinkProtocolForLinkedSourceBuilder <TLinkedSource> LoadLinkReferenceById <TReference, TId>(
Func <TLinkedSource, TId> getLookupId,
Expression <Func <TLinkedSource, TReference> > getLinkTarget)
{
if (getLookupId == null)
{
throw new ArgumentNullException(nameof(getLookupId));
}
if (getLinkTarget == null)
{
throw new ArgumentNullException(nameof(getLinkTarget));
}
return(LoadLinkReferencesByIds(
ToGetLookupIdsForSingleValue(getLookupId),
LinkTargetFactory.Create(getLinkTarget)
));
}
/// <summary>
/// Load a nested linked source by ID.
/// </summary>
public LoadLinkProtocolForLinkedSourceBuilder <TLinkedSource> LoadLinkNestedLinkedSourceById <TChildLinkedSource, TId>(
Func <TLinkedSource, TId> getLookupId,
Expression <Func <TLinkedSource, TChildLinkedSource> > getLinkTarget,
Action <TLinkedSource, TChildLinkedSource> initChildLinkedSource = null)
{
if (getLookupId == null)
{
throw new ArgumentNullException(nameof(getLookupId));
}
if (getLinkTarget == null)
{
throw new ArgumentNullException(nameof(getLinkTarget));
}
return(LoadLinkNestedLinkedSourcesByIds(
ToGetLookupIdsForSingleValue(getLookupId),
LinkTargetFactory.Create(getLinkTarget),
(linkedSource, referenceIndex, childLinkedSource) => initChildLinkedSource?.Invoke(linkedSource, childLinkedSource)
));
}
/// <summary>
/// Load a nested linked source using a model from its parent linked source.
/// </summary>
public LoadLinkProtocolForLinkedSourceBuilder <TLinkedSource> LoadLinkNestedLinkedSourceFromModel <TChildLinkedSource, TChildLinkedSourceModel>(
Func <TLinkedSource, TChildLinkedSourceModel> getNestedLinkedSourceModel,
Expression <Func <TLinkedSource, TChildLinkedSource> > getLinkTarget,
Action <TLinkedSource, TChildLinkedSource> initChildLinkedSource = null
) where TChildLinkedSource : class, ILinkedSource <TChildLinkedSourceModel>, new()
{
if (getNestedLinkedSourceModel == null)
{
throw new ArgumentNullException(nameof(getNestedLinkedSourceModel));
}
if (getLinkTarget == null)
{
throw new ArgumentNullException(nameof(getLinkTarget));
}
return(LoadLinkNestedLinkedSourcesFromModels(
ToGetLookupIdsForSingleValue(getNestedLinkedSourceModel),
LinkTargetFactory.Create(getLinkTarget),
(linkedSource, referenceIndex, childLinkedSource) => initChildLinkedSource?.Invoke(linkedSource, childLinkedSource)
));
}
/// <summary>
/// Load nested linked sources by their IDs.
/// </summary>
public LoadLinkProtocolForLinkedSourceBuilder <TLinkedSource> LoadLinkNestedLinkedSourcesByIds <TChildLinkedSource, TId>(
Func <TLinkedSource, IEnumerable <TId> > getLookupIds,
Expression <Func <TLinkedSource, List <TChildLinkedSource> > > getLinkTarget,
Action <TLinkedSource, int, TChildLinkedSource> initChildLinkedSource = null)
where TChildLinkedSource : ILinkedSource
{
if (getLookupIds == null)
{
throw new ArgumentNullException(nameof(getLookupIds));
}
if (getLinkTarget == null)
{
throw new ArgumentNullException(nameof(getLinkTarget));
}
return(LoadLinkNestedLinkedSourcesByIds(
getLookupIds,
LinkTargetFactory.Create(getLinkTarget),
initChildLinkedSource
));
}
/// <summary>
/// Load nested linked sources using models from the parent linked source.
/// </summary>
public LoadLinkProtocolForLinkedSourceBuilder <TLinkedSource> LoadLinkNestedLinkedSourcesFromModels <TChildLinkedSource, TChildLinkedSourceModel>(
Func <TLinkedSource, IEnumerable <TChildLinkedSourceModel> > getNestedLinkedSourceModels,
Expression <Func <TLinkedSource, IList <TChildLinkedSource> > > getLinkTarget,
Action <TLinkedSource, int, TChildLinkedSource> initChildLinkedSource = null
)
where TChildLinkedSource : class, ILinkedSource <TChildLinkedSourceModel>, new()
{
if (getNestedLinkedSourceModels == null)
{
throw new ArgumentNullException(nameof(getNestedLinkedSourceModels));
}
if (getLinkTarget == null)
{
throw new ArgumentNullException(nameof(getLinkTarget));
}
return(LoadLinkNestedLinkedSourcesFromModels(
getNestedLinkedSourceModels,
LinkTargetFactory.Create(getLinkTarget),
initChildLinkedSource
));
}
