public void TestParseValidSide()
{
var coloredSide = ColoredSide.Parse("Red-7");
var expectedSide = new ColoredSide(Color.Red, 7);
Assert.AreEqual(coloredSide, expectedSide);
}
public void TestEqualsAndHashCode()
{
var side1 = new ColoredSide(Color.Red, 7);
var side2 = new ColoredSide(Color.Red, 7);
Assert.IsTrue(side1.Equals(side2));
Assert.AreEqual(side1.GetHashCode(), side2.GetHashCode());
side2 = new ColoredSide(Color.Black, 7);
Assert.IsFalse(side1.Equals(side2));
}
/// <summary>
/// This method is constructing a triangle from three sides
/// </summary>
/// <param name="a">First side</param>
/// <param name="b">Second side</param>
/// <param name="c">Third side</param>
/// <returns>New instance of ColoredTriangle</returns>
/// <exception cref="DomainException">Is thrown when invalid length of sides are specified</exception>
public static ColoredTriangle Create(ColoredSide a, ColoredSide b, ColoredSide c)
{
if (a.Length + b.Length <= c.Length || a.Length + c.Length <= b.Length || b.Length + c.Length <= a.Length)
{
throw new DomainException($"Invalid side length for triangle ({a.Length}, {b.Length}, {c.Length})");
}
return(new ColoredTriangle
{
FirstSide = a,
SecondSide = b,
ThirdSide = c
});
}
/// <summary>
/// This method is creating a triangle from a string specified in a specific format
/// </summary>
/// <param name="triangle">Actual string</param>
/// <returns>New instance of ColoredTriangle</returns>
/// <exception cref="DomainException">
/// Is thrown when triangle string has an invalid format or the length of sides are invalid
/// </exception>
public static ColoredTriangle Parse(string triangle)
{
var fields = triangle.Split(FieldDelimiter);
if (fields.Length < 3)
{
throw new DomainException($"Not enough sides for triangle ({fields.Length})");
}
return(Create(
ColoredSide.Parse(fields[0]),
ColoredSide.Parse(fields[1]),
ColoredSide.Parse(fields[2])
));
}
public void TestEqualsAndHashCode()
{
var side1 = new ColoredSide(Color.Red, 7);
var side2 = new ColoredSide(Color.Blue, 6);
var side3 = new ColoredSide(Color.Yellow, 5);
var triangle = new ColoredTriangle
{
FirstSide = side1,
SecondSide = side2,
ThirdSide = side3
};
var triangle2 = new ColoredTriangle
{
FirstSide = side1,
SecondSide = side2,
ThirdSide = side3
};
Assert.IsTrue(triangle.Equals(triangle2));
Assert.AreEqual(triangle.GetHashCode(), triangle2.GetHashCode());
}
public void TestParseInvalidSide()
{
Assert.Throws <DomainException>(() => ColoredSide.Parse("Rdd-43"));
}