Added tests to verify the correct tree size after deleting single and multiple nodes.
testDeleteExistingKey(): Checks the tree size after single node deletion.
testDeleteMultipleKeys(): Checks the tree size after the multiple random node deletion.
testLargeTree(): Checks tree operations, search, delete, abd insert on large tree structure.
Added abstract declaration for setRoot() in the SplayTreeRotations.php as it references its child class implementation as static::setRoot() in both rotateLeft() and rotateRight()
Addendum to my #168,
Added tests to verify the correct tree size after deleting single and multiple nodes.
testDeleteExistingKey(): Checks the tree size after single node deletion.testDeleteMultipleKeys(): Checks the tree size after the multiple random node deletion.testLargeTree(): Checks tree operations,search,delete, abdinserton large tree structure.Added abstract declaration for
setRoot()in theSplayTreeRotations.phpas it references its child class implementation asstatic::setRoot()in bothrotateLeft()androtateRight()Minor typo fixes
Reference
Data Structures and Algorithms in C++, 2nd Edition