Codeo/Codeo.CQRS.Testabilityv2.1.1-2405131632.de93f97

Codeo.CQRS.Testability

This is a library to make testing code using Codeo.CQRS a little more convenient, specifically:

• fluent extension methods for IQueryExecutor and ICommandExecutor to mock calls for NSubstitute substitutes:
  • queryExecutor.WithMocked<TQuery, TResult>(...)
  • commandExecutor.WithMocked<TCommand, TResult>(...)

Suggested use is as follows:

var queryExecurtor = Substitute.For<IQueryExecutor>() .WithMocked<SomeQuery, SomeResult>( // see the tests for examples ).WithMocked<AnotherQUery, AnotherResult>( ... ); var commandExecutor = Substitute.For<ICommandExecutor>() .WithMocked<SomeCommand, SomeResult>( // see tests for examples ).WithMocked<AnotherCommand, AnotherResult>( ... );

Commands and queries can have their results mocked in the following ways:

1. With a constant result for all usages

var expected = new SomeResult(); var queryExecutor = Substitute.For<IQueryExecutor>() .WithMocked<SomeQuery, SomeResult>(expected);

2. With a constant result based on the incoming command/query

var expected = new SomeResult(); var queryExecutor = Substitute.For<IQueryExecutor>() .WithMocked<SomeQuery, SomeResult>( q => q.SomeParameter == 1, expected );

3. With full control over mock selection and logic

var expected = new SomeResult(); var queryExecutor = Substitute.For<IQueryExecutor>() .WithMocked<SomeQuery, SomeResult>( q => q.SomeParameter == 1, q => { // ... perform some other logic return expected; } );