Add tests folder with nao init

[ClaireGz]

Summary

• Scaffold a starter tests/basic_arithmetic.yml file during nao init.
• Keep tests/ in .naoignore so local test outputs/data stay out of synced context.
• Extend init command tests to cover the .naoignore entry and sample test file.

Why

New projects already created a tests/ directory, but it was empty. That left users without a working example for the expected test YAML format.

Validation

• uv run pytest tests/nao_core/commands/test_init.py
• uv run ruff check nao_core/commands/init.py tests/nao_core/commands/test_init.py

Fixes #756.

[github-actions]

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[cubic-dev-ai]

1 issue found across 2 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="cli/nao_core/commands/init.py">

<violation number="1" location="cli/nao_core/commands/init.py:98">
P2: The newly scaffolded `tests/test_example.yml` is always overwritten on re-init, which can silently erase user changes.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.}

[cubic-dev-ai]

P2: The newly scaffolded tests/test_example.yml is always overwritten on re-init, which can silently erase user changes.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At cli/nao_core/commands/init.py, line 98:

<comment>The newly scaffolded `tests/test_example.yml` is always overwritten on re-init, which can silently erase user changes.</comment>

<file context>
@@ -94,6 +94,10 @@ def create_empty_structure(project_path: Path) -> tuple[list[str], list[CreatedF
         CreatedFile(path=Path("RULES.md"), content=None),
         CreatedFile(path=Path(".naoignore"), content="templates/\n*.j2\ntests/\n"),
+        CreatedFile(
+            path=Path("tests/test_example.yml"),
+            content=("name: test_example\nprompt: What is the result of 1+1?\nsql: |\n  SELECT 2 AS answer_integer\n"),
+        ),
</file context>