public void TestStringJoin() => Assert.Equal(Expected, CTask4.Task4StringJoin(TestElements, TestDelimiter));
 public void TestStringBuilder() => Assert.Equal("Axe;Greatsword;Dagger;Broadsword;Staff;Spear;Bow;", CTask4.Task4StringBuilder(TestElements, TestDelimiter));
 public void TestLinqOnly() => Assert.Equal(Expected, CTask4.Task4LinqOnly(TestElements, TestDelimiter));