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c#bddspecflow

SpecFlow: System.FormatException: Input string was not in a correct format

I was getting the following error when running my tests using SpecFlow:

System.FormatException: Input string was not in a correct format.

And it took me a while to work out why it was happening.

Solution

  • It ended up being because I had omitted the single quotes in one of my step definitions, for example:

    [Then(@"Something adds up to a quantity of (.*)")]

    when it should have been

    [Then(@"Something adds up to a quantity of '(.*)'")]

    Note the single quotes around (.*)