"makeTree function returns correct s3 class"
"confInts() returns correct number of values"
"mmEstimate() returns correct value for non-leaf"
"mmEstimate() returns correct value for leaf at end of informative path"
"sampleBeta() returns double less than 1"
"ssEstimate() returns correct value for non-leaf"
"ssEstimate() returns correct value for a valid leaf endpoint"
"countTree function returns correct type"
"drawTree function returns correct type"
"wmmTree function generates list with four entries"