[WIP] Fix test_print test output

[Copilot]

Fix test_print test output to match expected format

Analysis completed:

• Explored repository structure and located relevant files
• Identified the issue: spacing differences in tree visualization
• Analyzed actual vs expected output differences

Changes to make:

• Fix spacing calculation in BinaryTree+Print.swift for the "only right child exists" case
• Update line spacing to match expected output format
• Verify test passes with corrected implementation
• Run all tests to ensure no regressions

Key differences found:

• Root position needs 3 spaces (not 2)
• Left empty node (∅) needs 0 leading spaces (not 1)
• Children lines need 4 leading spaces (not 5)
• Last line needs 4 trailing spaces (not empty)

Original prompt

fix test_print test output
The following is a snapshot of a chat conversation between a user and an AI coding assistant. Prioritize later messages in the conversation.
User: /awesome-copilot create-readme
User: @agent Enable: "Enable Claude Sonnet 4.5 for all clients"
AI: I'll help you create a comprehensive README for this BinaryTree Swift package. Let me first examine the project structure and code to understand what this library does.
AI: Now I have a good understanding of the BinaryTree Swift package. Let me create a comprehensive README file:
AI:

AI: 

AI: Perfect! I've created a comprehensive README for your BinaryTree Swift package. The README includes:

Key Sections:

✅ Overview - Clear description with feature badges
✅ Features - Highlighted capabilities with emojis
✅ Installation - SPM integration instructions
✅ Usage Examples - Both declarative builder and node constructor syntax
✅ Tree Traversal - All three methods (pre-order, in-order, post-order) with examples
✅ Pretty Printing - Visual tree representation examples
✅ API Reference - Complete documentation of types and methods
✅ Practical Examples - BST operations and level collection
✅ Requirements & Dependencies - Clear technical specifications
✅ Project Structure - File organization overview
✅ Contributing & License - Standard open-source sections

The README is well-structured, includes code examples that match your actual implementation, and provides both beginner-friendly and advanced usage patterns. It showcases the elegant result builder syntax and demonstrates the powerful traversal and visualization features of your package.
User: currently the notation of the tree when you print is

      ┌── 15
  ┌── 10
      └── 6

┌── 5

but it doesn't look right to me, propose better alternatives to render the tree. could be better if it was vertical
AI: You're right! The current horizontal representation can be confusing. Let me propose several better alternatives for visualizing the tree structure, especially vertical layouts that are more intuitive.
AI: Based on the current tree structure (where 5 is root, right child is 10, which has left child 6 and right child 15), here are better visualization alternatives:

Proposed Alternatives:

1. Classic Vertical Tree (Recommended) ✨

        5
         \
         10
        /  \
       6   15

2. Box-Style Vertical Tree

        ┌───┐
        │ 5 │
        └─┬─┘
          │
        ┌─┴──┐
        │ 10 │
        └─┬──┘
        ┌─┴─┐
        │   │
      ┌─┴┐ ┌┴─┐
      │6│ │15│
      └─┘ └──┘

3. ASCII Tree with Lines (Clean & Readable)

       5
       └─ 10
          ├─ 6
          └─ 15

4. Compact Hierarchical View

5
└── (right) 10
    ├── (left) 6
    └── (right) 15

5. Traditional Computer Science Vertical

        5
       / \
      ∅  10
        /  \
       6   15

6. Symmetric Bracket Style

           5
          / \
         /   \
        ∅     10
             /  \
            6   15

My Top Recommendation:

I'd suggest Option 3 (ASCII Tree with Lines) or Option 1 (Classic Vertical) because they are:

• ✅ Clear and intuitive - Shows parent-child relationships naturally
• ✅ Compact - Doesn't waste vertical space
• ✅ Left-to-right readable - Natural for most developers
• ✅ Easy to implement - Simple rendering logic

Would you like me to implement one of these alternatives? I can modify the
AI: file to use your preferred style. Which visualization do you prefer, or would you like to see another variation?
User: go with 6
AI: Perfect! I'll implement Option 6 - Symmetric Bracket Style which gives a beautiful vertical tree representation. Let me update both the implementation and the README.
AI:

AI: 

AI:

AI: 

AI: Now let me fix those lint warnings:
AI:

AI: 

AI: Now let's test the new implementation to make sure it works correctly:
AI: Good! The new implementation is working, but we need to update the test to match the new format. Let me update the test:
AI:

AI: 

AI: I see the spacing is slightly different. Let me check the actual output and adjust:
User: fix test_print test output

TITLE: Enhancing Tree Visualization in BinaryTree Swift Package

USER INTENT: The user aims to improve the visual representation of a binary tree in their BinaryTree Swift package, specifically by implementing a new printing style.

TASK DESCRIPTION: The user is refining the output format for printing binary trees to enhance clarity and usability. They have decided on a specific style and are working on updating the implementation and tests accordingly.

EXISTING: The assistant has created a comprehensive README for the BinaryTree Swift package, detailing its features, installation, usage examples, and more. The current tree printing format ...

Created from VS Code via the GitHub Pull Request extension.

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