public void One_row()
{
var actual = PascalsTriangle.Calculate(1);
var expected = new[] { new[] { 1 } };
Assert.Equal(expected, actual, NestedEnumerableEqualityComparer <int> .Instance);
}
public void Twenty_rows()
{
var actual = PascalsTriangle.Calculate(20).Last();
var expected = new[] { 1, 19, 171, 969, 3876, 11628, 27132, 50388, 75582, 92378, 92378, 75582, 50388, 27132, 11628, 3876, 969, 171, 19, 1 };
Assert.Equal(expected, actual);
}
public void Five_rows()
{
var actual = PascalsTriangle.Calculate(5);
var expected = new[] { new[] { 1 }, new[] { 1, 1 }, new[] { 1, 2, 1 }, new[] { 1, 3, 3, 1 }, new[] { 1, 4, 6, 4, 1 } };
Assert.Equal(expected, actual, NestedEnumerableEqualityComparer <int> .Instance);
}
public void Two_rows()
{
var actual = PascalsTriangle.Calculate(2).ToArray();
var expected = new[] { new[] { 1 }, new[] { 1, 1 } };
Assert.Equal(expected, actual, NestedEnumerableEqualityComparer <int> .Instance);
}
public void Single_row()
{
var expected = new[]
{
new[] { 1 }
};
Assert.Equal(expected, PascalsTriangle.Calculate(1));
}
public void Two_rows()
{
var expected = new[]
{
new[] { 1 },
new[] { 1, 1 }
};
Assert.Equal(expected, PascalsTriangle.Calculate(2));
}
public void Four_rows()
{
var expected = new[]
{
new[] { 1 },
new[] { 1, 1 },
new[] { 1, 2, 1 },
new[] { 1, 3, 3, 1 }
};
Assert.Equal(expected, PascalsTriangle.Calculate(4));
}
public void Six_rows()
{
var expected = new[]
{
new[] { 1 },
new[] { 1, 1 },
new[] { 1, 2, 1 },
new[] { 1, 3, 3, 1 },
new[] { 1, 4, 6, 4, 1 },
new[] { 1, 5, 10, 10, 5, 1 }
};
Assert.Equal(expected, PascalsTriangle.Calculate(6));
}
public void Ten_rows()
{
var expected = new[]
{
new[] { 1 },
new[] { 1, 1 },
new[] { 1, 2, 1 },
new[] { 1, 3, 3, 1 },
new[] { 1, 4, 6, 4, 1 },
new[] { 1, 5, 10, 10, 5, 1 },
new[] { 1, 6, 15, 20, 15, 6, 1 },
new[] { 1, 7, 21, 35, 35, 21, 7, 1 },
new[] { 1, 8, 28, 56, 70, 56, 28, 8, 1 },
new[] { 1, 9, 36, 84, 126, 126, 84, 36, 9, 1 }
};
Assert.Equal(expected, PascalsTriangle.Calculate(10));
}
public void Zero_rows()
{
Assert.Empty(PascalsTriangle.Calculate(0));
}
public void One_row()
{
var actual = PascalsTriangle.Calculate(1);
Assert.That(actual, Is.EqualTo(new[] { new[] { 1 } }));
}
public void Twenty_rows()
{
var actual = PascalsTriangle.Calculate(20).Last();
Assert.That(actual, Is.EqualTo(new[] { 1, 19, 171, 969, 3876, 11628, 27132, 50388, 75582, 92378, 92378, 75582, 50388, 27132, 11628, 3876, 969, 171, 19, 1 }));
}
public void Five_rows()
{
var actual = PascalsTriangle.Calculate(5);
Assert.That(actual, Is.EqualTo(new[] { new[] { 1 }, new[] { 1, 1 }, new[] { 1, 2, 1 }, new[] { 1, 3, 3, 1 }, new [] { 1, 4, 6, 4, 1 } }));
}
public void Three_rows()
{
var actual = PascalsTriangle.Calculate(3);
Assert.That(actual, Is.EqualTo(new[] { new[] { 1 }, new[] { 1, 1 }, new[] { 1, 2, 1 } }));
}
public void Negative_rows()
{
Assert.Throws <ArgumentOutOfRangeException>(() => PascalsTriangle.Calculate(-1));
}