Binary Math Education System - MVP Test Coverage
Following the MVP testing principle from CLAUDE.md preferences:
- 2-5 tests per feature (not enterprise-level complexity)
- Built-in unittest framework (no pytest required)
- Fast and deterministic tests
- Clear, focused test names
- Total Tests: 21
- Test Files: 5
- Execution Time: < 0.01 seconds
- Pass Rate: 100%
File: /Users/bhunt/development/claude/binary/tests/test_binary_basics.py
| Test | Description | Status |
|---|---|---|
test_decimal_to_binary_conversion |
Converts decimal numbers to binary (0, 42, 255) | ✅ Pass |
test_binary_to_decimal_conversion |
Converts binary to decimal | ✅ Pass |
test_binary_addition |
Binary addition with carry propagation | ✅ Pass |
test_bitwise_operations |
AND, OR, XOR, NOT operations | ✅ Pass |
test_twos_complement_conversion |
Two's complement for negative numbers | ✅ Pass |
Coverage:
- Conversion algorithms (both directions)
- Binary arithmetic
- Bitwise logic
- Signed integer representation
File: /Users/bhunt/development/claude/binary/tests/test_logic_gates.py
| Test | Description | Status |
|---|---|---|
test_and_gate |
AND gate truth table (2 and 3 inputs) | ✅ Pass |
test_or_gate |
OR gate truth table (2 and 3 inputs) | ✅ Pass |
test_not_gate |
NOT gate inversion | ✅ Pass |
test_xor_gate |
XOR gate (exclusive OR) | ✅ Pass |
test_gate_composition |
Chaining gates together | ✅ Pass |
Coverage:
- Basic gate operations
- Multi-input gates
- Gate composition
- Boolean result validation
File: /Users/bhunt/development/claude/binary/tests/test_truth_tables.py
| Test | Description | Status |
|---|---|---|
test_expression_parsing |
Parse boolean expressions (AND, OR, NOT) | ✅ Pass |
test_truth_table_generation |
Generate complete truth tables | ✅ Pass |
test_student_table_validation |
Validate student submissions | ✅ Pass |
test_table_formatting |
ASCII table formatting | ✅ Pass |
Coverage:
- Expression parsing
- Table generation (2-3 variables)
- Answer validation
- Output formatting
File: /Users/bhunt/development/claude/binary/tests/test_practice_generator.py
| Test | Description | Status |
|---|---|---|
test_problem_generation |
Generate problems for all difficulty levels | ✅ Pass |
test_hint_system |
Progressive 3-level hint system | ✅ Pass |
test_answer_validation |
Validate answers and provide feedback | ✅ Pass |
test_adaptive_difficulty |
Adjust difficulty based on performance | ✅ Pass |
Coverage:
- Problem generation
- Hint delivery
- Answer checking
- Difficulty adaptation
File: /Users/bhunt/development/claude/binary/tests/test_interactive_tutor.py
| Test | Description | Status |
|---|---|---|
test_session_management |
Create, save, and load sessions | ✅ Pass |
test_lesson_state_tracking |
Track progress and streaks | ✅ Pass |
test_progress_calculation |
Calculate accuracy and duration | ✅ Pass |
Coverage:
- Session persistence
- Progress tracking
- Statistics calculation
cd /Users/bhunt/development/claude/binary
# Run all tests
python3 run_tests.py
# Run specific module
python3 run_tests.py gates
# Quick mode (less verbose)
python3 run_tests.py quick# Using unittest directly
python3 -m unittest discover -s tests -p "test_*.py" -v
# Run single test file
python3 -m unittest tests.test_binary_basics -v
# Run single test case
python3 -m unittest tests.test_binary_basics.TestBinaryBasics.test_decimal_to_binary_conversion -v- Focused Testing: Each test validates one specific behavior
- No Over-Engineering: No complex mocking, fixtures, or factories
- Real Code Testing: Tests run against actual implementations
- Fast Feedback: All tests complete in milliseconds
- Clear Intent: Test names describe exactly what's being tested
Following MVP philosophy, we intentionally skip:
- Edge case exhaustion (e.g., all possible bit widths)
- Error message formatting
- Performance benchmarks
- UI/UX interactions
- Network/database operations
- Internationalization
These can be added later if needed, but aren't required for MVP validation.
- ✅ Binary conversion (both directions)
- ✅ Binary arithmetic (addition)
- ✅ Logic gates (AND, OR, NOT, XOR)
- ✅ Truth table generation
- ✅ Practice problem generation
- ✅ Session management
⚠️ Binary subtraction (not tested)⚠️ Binary multiplication (not tested)⚠️ NAND, NOR, XNOR gates (not tested)⚠️ Complex expressions (not tested)⚠️ UI components (not tested)
This is intentional for MVP. Core workflows are validated.
✅ All 21 tests passing ✅ < 0.01s execution time ✅ Zero external dependencies ✅ 100% core feature coverage ✅ Clear, maintainable test code
If expanding to production:
- Integration Tests: End-to-end user workflows
- Performance Tests: Large truth tables, long sessions
- Error Handling: Invalid inputs, edge cases
- UI Tests: Interactive tutor CLI behavior
- Regression Tests: Prevent bugs from returning
But for MVP validation, these 21 tests provide solid confidence in core functionality.
Follow the 2-5 test guideline:
class TestNewFeature(unittest.TestCase):
def setUp(self):
# Minimal setup only
pass
def test_core_behavior(self):
# One focused test per behavior
passTests are designed to run anywhere:
- No external dependencies
- No database required
- No network calls
- Temporary directories cleaned up
Tests can be integrated into CI/CD:
python3 run_tests.py quick && echo "Tests passed!"Created: 2025-10-15 Test Framework: Python unittest Philosophy: MVP-level testing (2-5 tests per feature) Status: All tests passing ✅