public void TestXacDinhTamGiacThuong()
{
// Test case xac dinh tam giac thuong
TamGiac tgt = new TamGiac(new Diem(0, 0), new Diem(2, 5), new Diem(10, 4));
Assert.AreEqual(0, tgt.LoaiTamGiac(), "Xac dinh sai tam giac thuong");
}
public void TestXacDinhCoPhaiLaTamGiacHayKhong()
{
// Cac test case cho truong hop khong phai la tam giac
// 3 diem trung nhau
TamGiac ktg1 = new TamGiac(new Diem(0, 0), new Diem(0, 0), new Diem(0, 0));
Assert.AreEqual(-1, ktg1.LoaiTamGiac(), "Xac dinh sai co phai la tam giac hay khong");
// 2 diem trung nhau
TamGiac ktg2 = new TamGiac(new Diem(1, 2), new Diem(1, 2), new Diem(2, 4));
Assert.AreEqual(-1, ktg2.LoaiTamGiac(), "Xac dinh sai co phai la tam giac hay khong");
TamGiac ktg3 = new TamGiac(new Diem(2, 4), new Diem(1, 2), new Diem(1, 2));
Assert.AreEqual(-1, ktg3.LoaiTamGiac(), "Xac dinh sai co phai la tam giac hay khong");
TamGiac ktg4 = new TamGiac(new Diem(1, 2), new Diem(2, 4), new Diem(1, 2));
Assert.AreEqual(-1, ktg4.LoaiTamGiac(), "Xac dinh sai co phai la tam giac hay khong");
// 3 diem nam tren 1 duong thang
TamGiac ktg5 = new TamGiac(new Diem(0, 0), new Diem(0, 1), new Diem(0, 2));
Assert.AreEqual(-1, ktg5.LoaiTamGiac(), "Xac dinh sai co phai la tam giac hay khong");
}
public void TestXacDinhTamGiacDeu()
{
// Test case xac dinh tam giac deu
TamGiac tgd = new TamGiac(new Diem(0, 0), new Diem(2, 0), new Diem(1, Math.Sqrt(3)));
Assert.AreEqual(2, tgd.LoaiTamGiac(), "Xac dinh sai tam giac deu");
}
public void TestTinhChuVi()
{
TamGiac tg = new TamGiac(new Diem(0, 0), new Diem(0, 8), new Diem(6, 0));
double cv = tg.ChuVi();
double expected = 20.0;
Assert.AreEqual(cv, expected, "Tinh sai chu vi");
}
public void TestHamDung3ThamSo()
{
Diem a = new Diem(1, 2);
Diem b = new Diem(3, 7);
Diem c = new Diem(5, 5);
TamGiac tg = new TamGiac(a, b, c);
Assert.IsTrue(LaHaiDiemGiongNhau(tg.A, a), "Sai diem thu nhat");
Assert.IsTrue(LaHaiDiemGiongNhau(tg.B, b), "Sai diem thu hai");
Assert.IsTrue(LaHaiDiemGiongNhau(tg.C, c), "Sai diem thu ba");
}
public void TestHamDungMacDinh()
{
TamGiac tg = new TamGiac();
Assert.AreEqual(0, tg.A.X, "Sai toa do X cua diem thu nhat");
Assert.AreEqual(0, tg.A.Y, "Sai toa do Y cua diem thu nhat");
Assert.AreEqual(0, tg.B.X, "Sai toa do X cua diem thu hai");
Assert.AreEqual(0, tg.B.Y, "Sai toa do Y cua diem thu hai");
Assert.AreEqual(0, tg.C.X, "Sai toa do X cua diem thu ba");
Assert.AreEqual(0, tg.C.Y, "Sai toa do Y cua diem thu ba");
}
public void TestXacDinhTamGiacCan()
{
// Test case xac dinh tam giac can
TamGiac tgc1 = new TamGiac(new Diem(0, 0), new Diem(0, 4), new Diem(4, 0));
Assert.AreEqual(1, tgc1.LoaiTamGiac(), "Xac dinh sai tam giac can");
TamGiac tgc2 = new TamGiac(new Diem(0, 4), new Diem(0, 0), new Diem(4, 0));
Assert.AreEqual(1, tgc2.LoaiTamGiac(), "Xac dinh sai tam giac can");
TamGiac tgc3 = new TamGiac(new Diem(0, 4), new Diem(0, 4), new Diem(0, 0));
Assert.AreEqual(1, tgc3.LoaiTamGiac(), "Xac dinh sai tam giac can");
}
public void TestCheckType()
{
double canhA = 1;
double canhB = 2;
double canhC = 3;
TamGiac tg = new TamGiac(canhA, canhB, canhC);
StringAssert.AreEqualIgnoringCase(TrangThaiMotTamGiac.notTriangle, TamGiac.CheckType(tg));
double canhA2 = 3;
double canhB2 = 4;
double canhC2 = 5;
TamGiac tg2 = new TamGiac(canhA2, canhB2, canhC2);
StringAssert.AreEqualIgnoringCase(TrangThaiMotTamGiac.isTamGiacVuong, TamGiac.CheckType(tg2));
double canhA3 = 3;
double canhB3 = 4;
double canhC3 = 4;
TamGiac tg3 = new TamGiac(canhA3, canhB3, canhC3);
StringAssert.AreEqualIgnoringCase(TrangThaiMotTamGiac.isTamGiacCan, TamGiac.CheckType(tg3));
}
public void ChuVi()
{
ABC = new TamGiac(new Diem(-1, 1), new Diem(1, 3), new Diem(2, 0));
Assert.AreEqual(Math.Sqrt(8) + Math.Sqrt(10) * 2, ABC.ChuVi());
}
public void NormalTriangle()
{
ABC = new TamGiac(new Diem(0, 0), new Diem(-2, 1), new Diem(4, 1));
Assert.AreEqual(0, ABC.Loai());
}
public void PerfectlyBalanced()
{
ABC = new TamGiac(new Diem(0, 0), new Diem(-2, Math.Sqrt(12)), new Diem(2, Math.Sqrt(12)));
Assert.AreEqual(1, ABC.Loai());
}
public void Balanced()
{
ABC = new TamGiac(new Diem(-1, 1), new Diem(1, 3), new Diem(2, 0));
Assert.AreEqual(4, ABC.Loai());
}
public void Has90AndBalanced()
{
ABC = new TamGiac(new Diem(1, 2), new Diem(0, 0), new Diem(-2, 1));
Assert.AreEqual(2, ABC.Loai());
}
public void Has90()
{
ABC = new TamGiac(new Diem(-1, 0), new Diem(-2, 3), new Diem(5, 2));
Assert.AreEqual(3, ABC.Loai());
}
