<PackageReference Include="NUnit" Version="3.11.0" />

Check

static class Check
public static void FirstAndSecond(object first, object second)

public static void GroupBySelectors(object source, object keySelector, object elementSelector, object resultSelector)

public static void JoinSelectors(object outer, object inner, object outerKeySelector, object innerKeySelector, object resultSelector)

public static void Source(object source)

public static void Source1AndSource2(object source1, object source2)

public static void SourceAndCollectionSelectorAndResultSelector(object source, object collectionSelector, object resultSelector)

public static void SourceAndCollectionSelectors(object source, object collectionSelector, object selector)

public static void SourceAndFunc(object source, object func)

public static void SourceAndFuncAndSelector(object source, object func, object selector)

public static void SourceAndKeyElementSelectors(object source, object keySelector, object elementSelector)

public static void SourceAndKeyResultSelectors(object source, object keySelector, object resultSelector)

public static void SourceAndKeySelector(object source, object keySelector)

public static void SourceAndPredicate(object source, object predicate)

public static void SourceAndSelector(object source, object selector)