public void GetTriangleType_ValidTriangles_Equilateral()
{
var triangleService = new TriangleService();
var resultsList = new List <TriangleType>
{
triangleService.GetTriangleType(new Triangle(1, 1, 1)),
triangleService.GetTriangleType(new Triangle(int.MaxValue, int.MaxValue, int.MaxValue)),
};
Assert.IsTrue(resultsList.All(r => r == TriangleType.Equilateral));
}
public void GetTriangleType_ValidTriangles_Isosceles()
{
var triangleService = new TriangleService();
var resultsList = new List <TriangleType>
{
triangleService.GetTriangleType(new Triangle(4, 4, 6)),
triangleService.GetTriangleType(new Triangle(int.MaxValue, 1, int.MaxValue)),
triangleService.GetTriangleType(new Triangle(11, 1, 11)),
};
Assert.IsTrue(resultsList.All(r => r == TriangleType.Isosceles));
}
public void GetTriangleType_ValidTriangles_Scalene()
{
var triangleService = new TriangleService();
var resultsList = new List <TriangleType>
{
triangleService.GetTriangleType(new Triangle(5, 6, 7)),
triangleService.GetTriangleType(new Triangle(7, 6, 5)),
triangleService.GetTriangleType(new Triangle(6, 5, 7))
};
Assert.IsTrue(resultsList.All(r => r == TriangleType.Scalene));
}
public void TriangleType_InvalidTriangleSideLengths_ReturnsError()
{
var triangleService = new TriangleService();
var actual = triangleService.GetTriangleType(4, 4, 9);
Assert.AreEqual("error", actual);
}
public void TriangleType_SameSideLengths_ReturnsScalene()
{
var triangleService = new TriangleService();
var actual = triangleService.GetTriangleType(4, 5, 3);
Assert.AreEqual("Scalene", actual);
}
public void TriangleType_Same2SideLengths_ReturnsIsosceles()
{
var triangleService = new TriangleService();
var actual = triangleService.GetTriangleType(3, 5, 5);
Assert.AreEqual("Isosceles", actual);
}
public void TriangleType_SameSideLengths_ReturnsEquilateral()
{
var triangleService = new TriangleService();
var actual = triangleService.GetTriangleType(1, 1, 1);
Assert.AreEqual("Equilateral", actual);
}
public void TriangleType_InvalidNegativeSides_ReturnsError()
{
var triangleService = new TriangleService();
var actual = triangleService.GetTriangleType(1, -1, 1);
Assert.AreEqual("error", actual);
}
public void GetTriangleType_InvalidTriangeCoordinats_Error()
{
var triangleService = new TriangleService();
var resultsList = new List <TriangleType>
{
triangleService.GetTriangleType(new Triangle(0, 0, 0)),
triangleService.GetTriangleType(new Triangle(1, 1, 2)),
triangleService.GetTriangleType(new Triangle(-1, -1, -1)),
triangleService.GetTriangleType(new Triangle(-1, 0, 1)),
triangleService.GetTriangleType(new Triangle(1, 1, -1)),
triangleService.GetTriangleType(new Triangle(9, 9, 9999)),
triangleService.GetTriangleType(new Triangle(1, 1, int.MaxValue)),
triangleService.GetTriangleType(new Triangle(int.MinValue, int.MinValue, int.MinValue)),
triangleService.GetTriangleType(new Triangle(4, 4, 8)),
triangleService.GetTriangleType(new Triangle(5, 6, 13))
};
Assert.IsTrue(resultsList.All(r => r == TriangleType.Error));
}
static void Main(string[] args)
{
Console.WriteLine("Enter three integers:");
try
{
var sideOne = int.Parse(Console.ReadLine());
var sideTwo = int.Parse(Console.ReadLine());
var sideThree = int.Parse(Console.ReadLine());
var triangleService = new TriangleService(new PolygonService());
Console.WriteLine(triangleService.GetTriangleType(sideOne, sideTwo, sideThree));
}
catch
{
Console.WriteLine("Invalid input.");
}
Console.ReadLine();
}
public void GetTriangleType_NoEqualSides_ReturnsScalene(int sideOne, int sideTwo, int sideThree)
{
var triangleService = new TriangleService(new PolygonService());
var results = new List <TriangleType>
{
triangleService.GetTriangleType(sideOne, sideTwo, sideThree),
triangleService.GetTriangleType(sideOne, sideThree, sideTwo),
triangleService.GetTriangleType(sideTwo, sideOne, sideThree),
triangleService.GetTriangleType(sideTwo, sideThree, sideOne),
triangleService.GetTriangleType(sideThree, sideOne, sideTwo),
triangleService.GetTriangleType(sideThree, sideTwo, sideOne)
};
Assert.All(results, x => Assert.Equal(TriangleType.Scalene, x));
}
[InlineData(3, 3, 10)] // largest side exceeds smaller sides
public void GetTriangleType_ImpossibleSides_ReturnsInvalidTriangle(int sideOne, int sideTwo, int sideThree)
{
var triangleService = new TriangleService(new PolygonService());
var results = new List <TriangleType>
{
triangleService.GetTriangleType(sideOne, sideTwo, sideThree),
triangleService.GetTriangleType(sideOne, sideThree, sideTwo),
triangleService.GetTriangleType(sideTwo, sideOne, sideThree),
triangleService.GetTriangleType(sideTwo, sideThree, sideOne),
triangleService.GetTriangleType(sideThree, sideOne, sideTwo),
triangleService.GetTriangleType(sideThree, sideTwo, sideOne)
};
Assert.All(results, x => Assert.Equal(TriangleType.NotAValidTriangle, x));
}