public async Task GetProductByIdQueryHandlerAsync_WithNullParameter_ThrowsException()
{
//Arrange
GetProductByIdQueryRequest command = null;
//Act
var actualException = await Assert.ThrowsAsync <Exception>(() => _getProductByIdQueryHandler.Handle(command, new CancellationToken()));
//Assert
Assert.Equal(MessageConstants.GetProductByIdQueryRequestNull, actualException.Message);
}
public async Task GetProductByIdQueryHandlerAsync_WithNullId_ThrowsException()
{
//Arrange
var command = new GetProductByIdQueryRequest {
Id = Guid.Empty
};
//Act
var actualException = await Assert.ThrowsAsync <Exception>(() => _getProductByIdQueryHandler.Handle(command, new CancellationToken()));
//Assert
Assert.Equal(MessageConstants.GetProductByIdQueryRequestIdNull, actualException.Message);
}
public async Task GetProductByIdQueryHandlerAsync_WitNonExistingProduct_ThrowsException()
{
//Arrange
var command = new GetProductByIdQueryRequest {
Id = Guid.NewGuid()
};
_mockUnitOfWork.Setup(x => x.ProductRepository.GetById(command.Id)).Returns(Task.FromResult <Product>(null));
//Act
var actualException = await Assert.ThrowsAsync <Exception>(() => _getProductByIdQueryHandler.Handle(command, new CancellationToken()));
//Assert
Assert.Equal(MessageConstants.ProductNotFound, actualException.Message);
}
