assertEquals( "Peeked value:", archimedesAveragePi, digester.peek( testStackName ) );
assertEquals( "Popped value:", archimedesAveragePi, digester.pop( testStackName ) );
assertTrue( "Stack ends empty:", digester.isEmpty( testStackName ) );
digester.push( testStackName, "1" );
digester.push( testStackName, "2" );
digester.push( testStackName, "3" );
assertEquals( "Peek#1", "1", digester.peek( testStackName, 2 ) );
assertEquals( "Peek#2", "2", digester.peek( testStackName, 1 ) );
assertEquals( "Peek#3", "3", digester.peek( testStackName, 0 ) );