public void ShouldReturnExpectedValueOfRegexCoins()
{
SystemVendorMachine vendorMachine = new SystemVendorMachine();
Assert.Equal("0.50 1.00", vendorMachine.RegexRemoveProducts("0.50 Coke 1.00 Coke Coke"));
Assert.Equal("0.50 1.00 1.00", vendorMachine.RegexRemoveProducts("0.50 Coke 1.00 1.00 Coke Coke"));
Assert.Equal("0.50 0.50 1.00", vendorMachine.RegexRemoveProducts("0.50 Coke 0.50 1.00 Coke Coke"));
Assert.Equal("0.50 1.00 0.05", vendorMachine.RegexRemoveProducts("0.50 Coke 1.00 0.05 Coke"));
}