public void TestIsContrain5and6()
{
int[] arr1 = new int[] { 1, 2, 3, 4, 5 };
bool rs1 = Program2.IsContrain5and6(arr1);
Assert.AreEqual(false, rs1);
int[] arr2 = new int[] { 1, 2, 3, 4, 6 };
bool rs2 = Program2.IsContrain5and6(arr2);
Assert.AreEqual(false, rs2);
int[] arr3 = new int[] { 1, 2, 3, 4, 5, 6 };
bool rs3 = Program2.IsContrain5and6(arr3);
Assert.AreEqual(true, rs3);
int[] arr4 = new int[] { 1, 2, 3, 4 };
bool rs4 = Program2.IsContrain5and6(arr4);
Assert.AreEqual(false, rs4);
}