public void TestIsContrain5or6() { int[] arr1 = new int[] { 1, 2, 3, 4, 5 }; bool rs1 = Program2.IsContrain5or6(arr1); Assert.AreEqual(true, rs1); int[] arr2 = new int[] { 1, 2, 3, 4, 7 }; bool rs2 = Program2.IsContrain5or6(arr2); Assert.AreEqual(false, rs2); int[] arr3 = new int[] { 1, 2, 3, 4 }; bool rs3 = Program2.IsContrain5or6(arr2); Assert.AreEqual(false, rs3); }