public void Does_truthy_falsy_conditional_logic_evaluate_correctly(string template, string expected)
{
//given
TemplateEngine ngin = new TemplateEngine(template);
ngin.TrimWhitespace = true;
int idx = 0;
Func <int> GetNextIndex = () => idx++;
Action ResetIndex = () => idx = 0;
ngin.LambdaRepo.Register(nameof(GetNextIndex), GetNextIndex);
ngin.LambdaRepo.Register(nameof(ResetIndex), ResetIndex);
bool[] data = new bool[20];
data[0] = ngin.IsTrue(null); //false;
data[1] = ngin.IsTrue(1.00F); //true;
data[2] = ngin.IsTrue(1U); //true;
data[3] = ngin.IsTrue(0.00F); //false;
data[4] = ngin.IsTrue(0); //false;
data[5] = ngin.IsTrue(string.Empty); //false;
data[6] = ngin.IsTrue(new object[0]); //false;
data[7] = ngin.IsTrue(new object[1]); //true;
data[8] = ngin.IsTrue(true); //true;
data[9] = ngin.IsTrue(false); //false;
data[10] = ngin.IsTrue('\0'); //false;
data[11] = ngin.IsTrue('t'); //true;
data[12] = ngin.IsTrue('f'); //true;
data[13] = ngin.IsTrue((decimal)1.111); //true;
data[14] = ngin.IsTrue((decimal)0.000); //false;
data[15] = ngin.IsTrue("\0"); //false;
data[16] = ngin.IsTrue("f"); //true;
data[17] = ngin.IsTrue("t"); //true;
data[18] = ngin.IsTrue("false"); //true;
data[19] = ngin.IsTrue("hello"); //true;
//when
string actual = ngin.Merge(data);
//then
Assert.Equal(expected, actual);
}