binary-search-tree: add test template

[cmccandless]

Task

Create a test template file for binary-search-tree

Details

1. If this is your first time contributing to this repository, welcome!
   • Contributing to a repository on GitHub requires a fork
2. Create a branch on your local repository called binary-search-tree-add-test-template
   • Run: git checkout -b binary-search-tree-add-test-template
3. Clone problem-specifications repository; this is used to populate the template
   • Run: git clone https://github.com/exercism/problem-specifications ../problem-specifications
4. Create exercises/binary-search-tree/.meta/template.j2
   • See Generator Documentation for more information
5. Generate test file from new template
   • Run: bin/generate_tests.py binary-search-tree

At this point, if the generator fails, or you are otherwise stuck,
please feel free to reach out! It is perfectly acceptable to submit
an incomplete PR in order to get feedback or assistance.

Resources

• Contributing Guide
• Generator Documentation
• Closing issues using keywords

[aaditkamat]

Hi @cmccandless, do we need to add a macro that provides a recursive routine e.g. to generate TreeNodes recursively like for this case? :

python/exercises/binary-search-tree/binary_search_tree_test.py

Lines 28 to 40 in 7a42fb7

	expected = TreeNode(
	'4',
	TreeNode(
	'2',
	TreeNode('1', None, None),
	TreeNode('3', None, None)
	),
	TreeNode(
	'6',
	TreeNode('5', None, None),
	TreeNode('7', None, None)
	)
	)

[cmccandless]

Template macros may be defined within the same template that uses them. Also, if additional Python code is needed for generation, there is a way to define exercise-specific plugins to the generator. I have not yet had time to document this feature. I will look for an exercise that does this for an example.

[cmccandless]

See this example of exercise generator plugin: #2106

[tsamoglou]

Is this still open? if I want to give a solution first i must make a pull request with [WIP}??
Please help me , I am first time contributing

[cmccandless]

@tsamoglou yes, this is still open.

I recommend looking through the Contributing Guide. If you have further questions, please feel free to ask them here.

[cmccandless]

Closed in #2157