public void SetInMemoryDataSource_GivenServiceProvider_RequestsInMemoryRulesStorageAndSetsOnSelector()
{
// Arrange
InMemoryRulesStorage <ContentType, ConditionType> inMemoryRulesStorage = Mock.Of <InMemoryRulesStorage <ContentType, ConditionType> >();
IServiceCollection serviceDescriptors = new ServiceCollection();
serviceDescriptors.AddSingleton(inMemoryRulesStorage);
IServiceProvider serviceProvider = serviceDescriptors.BuildServiceProvider();
IRulesDataSourceSelector <ContentType, ConditionType> rulesDataSourceSelector = Mock.Of <IRulesDataSourceSelector <ContentType, ConditionType> >();
IRulesDataSource <ContentType, ConditionType> actualRulesDataSource = null;
Mock.Get(rulesDataSourceSelector)
.Setup(x => x.SetDataSource(It.IsAny <IRulesDataSource <ContentType, ConditionType> >()))
.Callback <IRulesDataSource <ContentType, ConditionType> >((rds) =>
{
actualRulesDataSource = rds;
});
// Act
rulesDataSourceSelector.SetInMemoryDataSource(serviceProvider);
// Assert
actualRulesDataSource.Should().NotBeNull();
actualRulesDataSource.Should().BeOfType <InMemoryProviderRulesDataSource <ContentType, ConditionType> >();
Mock.Get(rulesDataSourceSelector)
.Verify();
}
/// <summary>
/// Sets the rules engine data source from a in-memory data source.
/// </summary>
/// <typeparam name="TContentType">The type of the content type.</typeparam>
/// <typeparam name="TConditionType">The type of the condition type.</typeparam>
/// <param name="rulesDataSourceSelector">The rules data source selector.</param>
/// <param name="serviceProvider">The service provider.</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">
/// rulesDataSourceSelector
/// or
/// serviceProvider
/// </exception>
public static IConfiguredRulesEngineBuilder <TContentType, TConditionType> SetInMemoryDataSource <TContentType, TConditionType>(
this IRulesDataSourceSelector <TContentType, TConditionType> rulesDataSourceSelector,
IServiceProvider serviceProvider)
{
if (serviceProvider is null)
{
throw new ArgumentNullException(nameof(serviceProvider));
}
IInMemoryRulesStorage <TContentType, TConditionType> inMemoryRulesStorage = serviceProvider
.GetService(typeof(InMemoryRulesStorage <TContentType, TConditionType>)) as InMemoryRulesStorage <TContentType, TConditionType>;
return(rulesDataSourceSelector.SetInMemoryDataSource(inMemoryRulesStorage));
}
public void SetInMemoryDataSource_NoParametersGiven_CreatesTransientInMemoryRulesStorageAndSetsOnSelector()
{
// Arrange
IRulesDataSourceSelector <ContentType, ConditionType> rulesDataSourceSelector = Mock.Of <IRulesDataSourceSelector <ContentType, ConditionType> >();
IRulesDataSource <ContentType, ConditionType> actualRulesDataSource = null;
Mock.Get(rulesDataSourceSelector)
.Setup(x => x.SetDataSource(It.IsAny <IRulesDataSource <ContentType, ConditionType> >()))
.Callback <IRulesDataSource <ContentType, ConditionType> >((rds) =>
{
actualRulesDataSource = rds;
});
// Act
rulesDataSourceSelector.SetInMemoryDataSource();
// Assert
actualRulesDataSource.Should().NotBeNull();
actualRulesDataSource.Should().BeOfType <InMemoryProviderRulesDataSource <ContentType, ConditionType> >();
Mock.Get(rulesDataSourceSelector)
.Verify();
}
public void SetInMemoryDataSource_GivenNullServiceProvider_ThrowsArgumentNullException()
{
// Arrange
IServiceProvider serviceProvider = null;
IRulesDataSourceSelector <ContentType, ConditionType> rulesDataSourceSelector = Mock.Of <IRulesDataSourceSelector <ContentType, ConditionType> >();
// Act
ArgumentNullException actual = Assert.Throws <ArgumentNullException>(() => rulesDataSourceSelector.SetInMemoryDataSource(serviceProvider));
// Assert
actual.Should().NotBeNull();
actual.ParamName.Should().Be(nameof(serviceProvider));
}
/// <summary>
/// Sets the rules engine data source from a in-memory data source.
/// </summary>
/// <typeparam name="TContentType">The type of the content type.</typeparam>
/// <typeparam name="TConditionType">The type of the condition type.</typeparam>
/// <param name="rulesDataSourceSelector">The rules data source selector.</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">
/// rulesDataSourceSelector
/// </exception>
public static IConfiguredRulesEngineBuilder <TContentType, TConditionType> SetInMemoryDataSource <TContentType, TConditionType>(
this IRulesDataSourceSelector <TContentType, TConditionType> rulesDataSourceSelector)
=> rulesDataSourceSelector.SetInMemoryDataSource(new InMemoryRulesStorage <TContentType, TConditionType>());