copilot-dev: Command for Claude Code

Your goal is to analyze the current pytest test coverage for this project and add tests to bring all modules to at least 80% line coverage — the minimum standard for this codebase.

Step 1: Run the coverage report

Run the annotated coverage report so we can see exactly which lines are uncovered:

# For the whole project
pytest --cov --cov-report=annotate:cov_annotate --cov-report=term-missing -v

# For a specific module (replace MODULE_NAME if provided)
pytest --cov=${input:module:tip_service} --cov-report=annotate:cov_annotate --cov-report=term-missing -v

# For a specific test file only
pytest ${input:testfile:tests/} --cov --cov-report=term-missing -v

Step 2: Interpret the results

In the cov_annotate/ directory, each source file has an annotated copy:

• Lines starting with > are executed (covered)
• Lines starting with ! are NOT covered — these need tests
• Lines starting with - are excluded (comments, blanks)

In the terminal report, focus on the Miss column — those are the uncovered line numbers.

Step 3: Generate missing tests

For each uncovered section, generate tests following these patterns:

Basic test structure (pytest style)

import pytest
from your_module import the_function_under_test


class TestFunctionName:
    """Tests for the_function_under_test."""

    def test_happy_path(self):
        """Verify normal operation with valid inputs."""
        result = the_function_under_test("valid_input")
        assert result == "expected_output"

    def test_edge_case_empty_input(self):
        """Verify behavior with empty/None input."""
        result = the_function_under_test("")
        assert result == ""  # or pytest.raises(ValueError)

    def test_error_condition(self):
        """Verify correct exception is raised for invalid input."""
        with pytest.raises(ValueError, match="meaningful message"):
            the_function_under_test(None)

Fixtures — prefer fixtures over repetition