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package student_test
import (
"reflect"
"testing"
"github.com/01-edu/z01"
solutions "./solutions"
student "./student"
)
func parentListRotLeft(root *student.TreeNode) string {
if root == nil {
return ""
}
var parent string
if root.Parent == nil {
parent = "nil"
} else {
parent = root.Parent.Data
}
r := "Node: " + root.Data + " Parent: " + parent + "\n"
r += parentListRotLeft(root.Left) + parentListRotLeft(root.Right)
return r
}
func FormatTree_rotleft(root *student.TreeNode) string {
if root == nil {
return ""
}
res := root.Data + "\n"
res += formatSubTree_rotleft(root, "")
return res
}
func formatSubTree_rotleft(root *student.TreeNode, prefix string) string {
if root == nil {
return ""
}
var res string
hasLeft := root.Left != nil
hasRight := root.Right != nil
if !hasLeft && !hasRight {
return res
}
res += prefix
if hasLeft && hasRight {
res += "├── "
}
if !hasLeft && hasRight {
res += "└── "
}
if hasRight {
printStrand := (hasLeft && hasRight && (root.Right.Right != nil || root.Right.Left != nil))
newPrefix := prefix
if printStrand {
newPrefix += "│ "
} else {
newPrefix += " "
}
res += root.Right.Data + "\n"
res += formatSubTree_rotleft(root.Right, newPrefix)
}
if hasLeft {
if hasRight {
res += prefix
}
res += "└── " + root.Left.Data + "\n"
res += formatSubTree_rotleft(root.Left, prefix+" ")
}
return res
}
func errorMessage_rotleft(t *testing.T, fn interface{}, rootOr, root *solutions.TreeNode, rootS *student.TreeNode) {
t.Fatalf("%s(\n%s\n)\n == \n%s instead of \n%s\n",
z01.NameOfFunc(fn),
solutions.FormatTree(rootOr),
FormatTree_rotleft(rootS),
solutions.FormatTree(root),
)
}
func CompareTreesRotLeft(t *testing.T, fn interface{}, root, rootA *solutions.TreeNode, rootAS *student.TreeNode) {
parentSol := solutions.ParentList(rootA)
parentStu := parentListRotLeft(rootAS)
solTree := solutions.FormatTree(root)
if parentSol != parentStu {
t.Fatalf("Tree:\n%s\nExpected\n%s instead of\n%s\n", solTree, parentSol, parentStu)
}
}
func CompareNode_rotleft(t *testing.T, fn interface{}, rootOr, root *solutions.TreeNode, rootS *student.TreeNode) {
solTree := solutions.FormatTree(root)
stuTree := FormatTree_rotleft(rootS)
if solTree != stuTree {
errorMessage_rotleft(t, fn, rootOr, root, rootS)
}
}
func CompareReturn_rotleft(t *testing.T, fn1, fn2, rootOr, arg1, arg2 interface{}) {
arar1 := []interface{}{arg1}
arar2 := []interface{}{arg2}
out1 := z01.Monitor(fn1, arar1)
out2 := z01.Monitor(fn2, arar2)
for i, v := range out1.Results {
switch str := v.(type) {
case *solutions.TreeNode:
CompareNode_rotleft(t, fn1, rootOr.(*solutions.TreeNode), str, out2.Results[i].(*student.TreeNode))
default:
if !reflect.DeepEqual(str, out2.Results[i]) {
t.Fatalf("%s(%s) == %s instead of %s\n",
z01.NameOfFunc(fn1),
z01.Format(arg1),
z01.Format(out2.Results...),
z01.Format(out1.Results...),
)
}
}
}
}
func TestBTreeRotateLeft(t *testing.T) {
root := &solutions.TreeNode{Data: "04"}
rootOr := &solutions.TreeNode{Data: "04"}
rootS := &student.TreeNode{Data: "04"}
ins := []string{"01", "07", "05", "12", "02", "03", "10"}
for _, v := range ins {
root = solutions.BTreeInsertData(root, v)
rootS = student.BTreeInsertData(rootS, v)
rootOr = solutions.BTreeInsertData(rootOr, v)
}
fn := interface{}(solutions.BTreeRotateLeft)
CompareReturn_rotleft(t, fn, student.BTreeRotateLeft, rootOr, root, rootS)
CompareTreesRotLeft(t, fn, rootOr, root, rootS)
}