csharp-test-generation

name	csharp-test-generation
description	Generate MSTest + Moq unit tests for Notebook Automation, following existing patterns in src/c-sharp/NotebookAutomation.Tests. Use when this capability is needed.
metadata	{"author":"danielshue"}

C# Test Generation (MSTest + Moq)

When to use

Use this skill when the user asks to:

• Add new unit tests or increase coverage for C# code.
• Create tests for bug fixes or regressions.

Workflow

1. Locate the production code and existing tests near it (mirror the folder structure when possible).
2. Reuse existing fixtures/utilities and established patterns.
3. Write tests using Arrange–Act–Assert.
4. Prefer deterministic tests; use temp files/folders and clean up.

Conventions to follow

• Test generation instructions
• Test reuse guidance

Practical patterns (from this repo)

• Use [TestInitialize] for setup and [TestCleanup] for temp-file cleanup.
• Use Assert.ThrowsException<T>() for exception paths.
• Use Moq Setup(...)/Verify(...) for external dependency interactions.

Examples (input → expected output)

Example: Add tests for a bug fix

Input: “Fix a null-handling bug and add coverage.”

Expected output:

• A regression test that fails before the fix and passes after
• Clear Arrange–Act–Assert structure
• Minimal mocking (only external dependencies)

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