public void When_projecting_a_successful_result()
{
var input = new MockInput<int>();
var childParser = new MockSuccessfulParser<int, double>(1.0);
var parser = new ProjectionParser<int, double, decimal>(childParser, d => (decimal) d + 3.0m);
var actualResult = parser.Parse(input);
ParseResultAssert.IsSuccess(actualResult);
ParseResultAssert.AreEqual(4.0m, actualResult);
}
public void When_projecting_a_failure_result()
{
var input = new MockInput<int>();
var childParser = new MockFailureParser<int, double>();
var parser = new ProjectionParser<int, double, decimal>(childParser, d => (decimal) d + 3.0m);
var actualResult = parser.Parse(input);
ParseResultAssert.IsFailure(actualResult);
Assert.AreEqual(input, actualResult.FirstInput);
}