public async Task GetMerchant_HappyPath()
{
MerchantHelper merchantHelper = new MerchantHelper(_mockLogger.Object, _mockDataAccess.Object);
MerchantId merchantId = new MerchantId()
{
UUID = Guid.NewGuid().ToString()
};
Merchant merchant = new Merchant()
{
MerchantId = merchantId
};
_mockDataAccess.Setup(x => x.GetMerchantByIdAsync(It.IsAny <MerchantId>())).ReturnsAsync(merchant);
Merchant result = await merchantHelper.GetMerchantByIdAsync(merchantId).ConfigureAwait(false);
Assert.Equal(merchant, result);
}