public void ShouldNotEagerLoad_WhenNavigationIsNotAllowedOnTheRootEntity()
{
var attribute = new EagerLoadAttribute(notOnRoot: true);
var navigationHelperMock = new Mock <NavigationHelper>();
navigationHelperMock.Setup(helper => helper.GetTypeForNavigation(It.IsAny <INavigation>()))
.Returns(typeof(Book));
var strategy = new EagerLoadAttributeIncludeStrategy(navigationHelperMock.Object);
var context = new EagerLoadContext(Mock.Of <DbContext>(), strategy);
var firstNavigationMock = SetupGenericNavigationMock();
EagerLoadAttributeIncludeStrategy.EagerLoadAttributeCache.TryAdd(firstNavigationMock.Object, attribute);
context.SetCurrentNavigation(firstNavigationMock.Object);
Assert.False(strategy.ShouldIncludeCurrentNavigation(context));
var secondNavigationMock = SetupGenericNavigationMock();
EagerLoadAttributeIncludeStrategy.EagerLoadAttributeCache.TryAdd(secondNavigationMock.Object, new EagerLoadAttribute());
context.SetCurrentNavigation(secondNavigationMock.Object);
context.SetCurrentNavigation(firstNavigationMock.Object);
Assert.True(strategy.ShouldIncludeCurrentNavigation(context));
}
public void ShouldDisplayCorrect_CurrentIncludePath_WhenRemovingNavigation()
{
var context = new EagerLoadContext(Mock.Of <DbContext>(), Mock.Of <IIncludeStrategy>());
var bookNavigationMock = new Mock <INavigation>();
bookNavigationMock.Setup(nav => nav.Name).Returns(nameof(Book));
var authorNavigationMock = new Mock <INavigation>();
authorNavigationMock.Setup(nav => nav.Name).Returns(nameof(Author));
var publisherNavigationMock = new Mock <INavigation>();
publisherNavigationMock.Setup(nav => nav.Name).Returns(nameof(Publisher));
context.SetCurrentNavigation(bookNavigationMock.Object);
context.SetCurrentNavigation(authorNavigationMock.Object);
context.SetCurrentNavigation(publisherNavigationMock.Object);
Assert.Equal($"{nameof(Book)}.{nameof(Author)}.{nameof(Publisher)}", context.CurrentIncludePath);
context.RemoveCurrentNavigation();
Assert.Equal($"{nameof(Book)}.{nameof(Author)}", context.CurrentIncludePath);
context.RemoveCurrentNavigation();
Assert.Equal($"{nameof(Book)}", context.CurrentIncludePath);
context.RemoveCurrentNavigation();
Assert.Equal(string.Empty, context.CurrentIncludePath);
context.RemoveCurrentNavigation();
Assert.Equal(string.Empty, context.CurrentIncludePath);
}
public void ShouldNotEagerLoad_WhenAttributeDoesNotExistOnNavigation()
{
var strategy = new EagerLoadAttributeIncludeStrategy();
var context = new EagerLoadContext(Mock.Of <DbContext>(), strategy);
var navigationMock = SetupGenericNavigationMock();
context.SetCurrentNavigation(navigationMock.Object);
Assert.False(strategy.ShouldIncludeCurrentNavigation(context));
}
public void ShouldEagerLoad_ForAllOffRoot()
{
var strategy = new AllNavigationsIncludeStrategy();
var context = new EagerLoadContext(new Mock <DbContext>().Object, strategy);
var navigationMock = new Mock <INavigation>();
navigationMock.Setup(nav => nav.Name).Returns(nameof(Book));
context.SetCurrentNavigation(navigationMock.Object);
Assert.True(strategy.ShouldIncludeCurrentNavigation(context));
}
public void ShouldDisplayCorrect_CurrentIncludePath_WhenAddingFirstNavigation()
{
var context = new EagerLoadContext(Mock.Of <DbContext>(), Mock.Of <IIncludeStrategy>());
var navigationMock = new Mock <INavigation>();
navigationMock.Setup(nav => nav.Name).Returns(nameof(Book));
context.SetCurrentNavigation(navigationMock.Object);
Assert.Equal(nameof(Book), context.CurrentIncludePath);
}
public void ShouldDoNothing_WhenNavigationAddedIsNull()
{
var context = new EagerLoadContext(Mock.Of <DbContext>(), Mock.Of <IIncludeStrategy>());
Assert.Equal(string.Empty, context.CurrentIncludePath);
Assert.Null(context.CurrentNavigation);
context.SetCurrentNavigation(null);
Assert.Equal(string.Empty, context.CurrentIncludePath);
Assert.Null(context.CurrentNavigation);
}
public void ShouldNotEagerLoad_WhenNavigationIsNotValid()
{
var strategy = new EagerLoadAttributeIncludeStrategy();
var context = new EagerLoadContext(Mock.Of <DbContext>(), strategy);
var navigationMock = new Mock <INavigation>();
navigationMock.Setup(nav => nav.Name).Returns(nameof(Book));
context.SetCurrentNavigation(navigationMock.Object);
Assert.False(strategy.ShouldIncludeCurrentNavigation(context));
}
public void ShouldNotEagerLoad_IfIncludePathToConsiderShouldBeIgnored()
{
var strategy = new AllNavigationsIncludeStrategy();
var context = new EagerLoadContext(new Mock <DbContext>().Object, strategy);
context.IncludePathsToIgnore.Add(nameof(INavigation));
//context.ParentIncludePath = "";
var navigationMock = new Mock <INavigation>();
navigationMock.Setup(nav => nav.Name).Returns(nameof(INavigation));
context.SetCurrentNavigation(navigationMock.Object);
Assert.False(strategy.ShouldIncludeCurrentNavigation(context));
}
public void ShouldNotEagerLoad_WhenOverTheTypeCount()
{
var attribute = new EagerLoadAttribute(maxTypeCount: 1);
var navigationHelperMock = new Mock <NavigationHelper>();
var strategy = new EagerLoadAttributeIncludeStrategy(navigationHelperMock.Object);
var context = new EagerLoadContext(Mock.Of <DbContext>(), strategy, rootType: typeof(Publisher));
var firstNavigationMock = SetupGenericNavigationMock();
EagerLoadAttributeIncludeStrategy.EagerLoadAttributeCache.TryAdd(firstNavigationMock.Object, attribute);
navigationHelperMock.Setup(helper => helper.GetTypeForNavigation(It.IsAny <INavigation>()))
.Returns(typeof(Book));
context.SetCurrentNavigation(firstNavigationMock.Object);
Assert.True(strategy.ShouldIncludeCurrentNavigation(context));
var secondNavigationMock = SetupGenericNavigationMock();
EagerLoadAttributeIncludeStrategy.EagerLoadAttributeCache.TryAdd(secondNavigationMock.Object,
new EagerLoadAttribute());
navigationHelperMock.Setup(helper => helper.GetTypeForNavigation(It.IsAny <INavigation>()))
.Returns(typeof(Author));
context.SetCurrentNavigation(secondNavigationMock.Object);
Assert.True(strategy.ShouldIncludeCurrentNavigation(context));
var thirdNavigationMock = SetupGenericNavigationMock();
EagerLoadAttributeIncludeStrategy.EagerLoadAttributeCache.TryAdd(thirdNavigationMock.Object, attribute);
navigationHelperMock.Setup(helper => helper.GetTypeForNavigation(It.IsAny <INavigation>()))
.Returns(typeof(Book));
context.SetCurrentNavigation(thirdNavigationMock.Object);
Assert.False(strategy.ShouldIncludeCurrentNavigation(context));
}
public void ShouldNotEagerLoad_WhenAttributeSetToNever()
{
var strategy = new EagerLoadAttributeIncludeStrategy();
var context = new EagerLoadContext(Mock.Of <DbContext>(), strategy);
var navigationMock = SetupGenericNavigationMock();
var navigation = navigationMock.Object;
context.SetCurrentNavigation(navigation);
var attribute = new EagerLoadAttribute(never: true);
EagerLoadAttributeIncludeStrategy.EagerLoadAttributeCache.TryAdd(navigation, attribute);
Assert.False(strategy.ShouldIncludeCurrentNavigation(context));
}
public void ShouldEagerLoad_WhenAttributeExist()
{
var strategy = new AttributeExistsIncludeStrategy <EagerLoadAttribute>();
var context = new EagerLoadContext(new Mock <DbContext>().Object, strategy);
var navigationMock = new Mock <INavigation>();
navigationMock.Setup(nav => nav.Name).Returns(nameof(Book));
context.SetCurrentNavigation(navigationMock.Object);
navigationMock.Setup(nav => nav.PropertyInfo)
.Returns(GetType().GetProperty(nameof(HasEagerLoadAttribute)));
Assert.True(strategy.ShouldIncludeCurrentNavigation(context));
navigationMock.Setup(nav => nav.PropertyInfo)
.Returns(GetType().GetProperty(nameof(HasManyIncludingEagerLoadAttribute)));
Assert.True(strategy.ShouldIncludeCurrentNavigation(context));
}
public void ShouldUseSuppliedPathPredicate_ToTestIfTheNavigationShouldBeIncluded()
{
var pathChecked = string.Empty;
var strategy = new PredicateIncludeStrategy(path =>
{
pathChecked = path;
return(true);
});
var context = new EagerLoadContext(Mock.Of <DbContext>(), strategy);
var navigationMock = new Mock <INavigation>();
navigationMock.Setup(nav => nav.Name).Returns(nameof(Book));
context.SetCurrentNavigation(navigationMock.Object);
Assert.True(strategy.ShouldIncludeCurrentNavigation(context));
Assert.Equal(nameof(Book), pathChecked);
}
private void BuildIncludesForEagerLoadContext(EagerLoadContext context)
{
BuildIncludesForEagerLoadContext();
void BuildIncludesForEagerLoadContext()
{
var navigationsToConsider = _navigationFinder.GetNavigationsForType(context, context.CurrentType ?? context.RootType);
foreach (var navigation in navigationsToConsider)
{
context.SetCurrentNavigation(navigation);
if (context.IncludeStrategy.ShouldIncludeCurrentNavigation(context))
{
context.IncludePathsToInclude.Add(context.CurrentIncludePath);
BuildIncludesForEagerLoadContext();
}
context.RemoveCurrentNavigation();
}
}
}
public void ShouldUseSuppliedContextPredicate_ToTestIfTheNavigationShouldBeIncluded()
{
var testCount = 0;
var strategy = new PredicateIncludeStrategy((EagerLoadContext contextInput) =>
{
var result = (testCount == 1);
testCount++;
return(result);
});
var context = new EagerLoadContext(Mock.Of <DbContext>(), strategy);
var navigationMock = new Mock <INavigation>();
navigationMock.Setup(nav => nav.Name).Returns(nameof(Book));
context.SetCurrentNavigation(navigationMock.Object);
Assert.False(strategy.ShouldIncludeCurrentNavigation(context));
Assert.True(strategy.ShouldIncludeCurrentNavigation(context));
Assert.Equal(2, testCount);
}