public void PopulateTestCase() { var array = new Int32[10]; var actual = array.Populate( 100 ); Assert.AreSame( array, actual ); Assert.AreEqual( 10, array.Length ); for ( var i = 0; i < array.Length; i++ ) { Assert.AreEqual( 100, array[i] ); Assert.AreEqual( 100, actual[i] ); } }