public void Double_returns_a_value_between_0_and_1()
{
RandomTestHelper.Always(() =>
{
var value = RandomHelper.Double();
return(value >= 0.0 && value <= 1.0);
});
}
public void Sign_returns_either_one_or_minus_one()
{
RandomTestHelper.Always(() =>
{
var value = RandomHelper.Sign();
return(value == 1 || value == -1);
});
}
public void Int_returns_a_random_value()
{
RandomTestHelper.AtLeastOnce(() =>
{
var a = RandomHelper.Int(1, 1000);
var b = RandomHelper.Int(1, 1000);
return(a != b);
});
}
public void Double_returns_a_random_value()
{
RandomTestHelper.AtLeastOnce(() =>
{
var a = RandomHelper.Double();
var b = RandomHelper.Double();
return(Math.Abs(a - b) > 0.001);
});
}
public void Sign_returns_random_values()
{
RandomTestHelper.AtLeastOnce(() =>
{
var a = RandomHelper.Sign();
var b = RandomHelper.Sign();
return(a != b);
});
}
public void Bool_returns_a_random_value()
{
RandomTestHelper.AtLeastOnce(() =>
{
var a = RandomHelper.Bool();
var b = RandomHelper.Bool();
return(a != b);
});
}
public void PickWeighted_returns_a_value_from_the_original_collection()
{
var src = Enumerable.Range(1, 100).ToList();
RandomTestHelper.Always(() =>
{
var value = RandomHelper.PickWeighted(src, x => x);
return(src.Contains(value));
});
}
public void Shuffle_shuffles_array()
{
var src = Enumerable.Range(1, 100).ToList();
RandomTestHelper.AtLeastOnce(() =>
{
var result = src.Shuffle().ToList();
return(result.SequenceEqual(src) == false &&
result.OrderBy(x => x).SequenceEqual(src) == true);
});
}
public void Int_returns_a_value_between_given_values()
{
var min = 10;
var max = 500;
RandomTestHelper.Always(() =>
{
var value = RandomHelper.Int(min, max);
return(value >= min && value <= max);
});
}
public void Double_returns_a_value_between_given_values()
{
var min = 13;
var max = 37;
RandomTestHelper.Always(() =>
{
var value = RandomHelper.Double(min, max);
return(value >= min && value <= max);
});
}
public void PickWeighted_returns_different_values()
{
var src = Enumerable.Range(1, 100).ToList();
RandomTestHelper.AtLeastOnce(() =>
{
var a = RandomHelper.PickWeighted(src, x => x);
var b = RandomHelper.PickWeighted(src, x => x);
return(a != b);
});
}
public void Long_returns_a_value_between_given_values()
{
var min = 359;
var max = 9001;
RandomTestHelper.Always(() =>
{
var value = RandomHelper.Long(min, max);
return(value >= min && value <= max);
});
}
public void PickRandom_picks_elements()
{
var src = Enumerable.Range(1, 100).ToList();
RandomTestHelper.AtLeastOnce(() =>
{
var a = src.PickRandom();
var b = src.PickRandom();
return(src.Contains(a) &&
src.Contains(b) &&
a != b);
});
}
