"""
Unit tests for config module.
Tests get_api_headers, load_test_hints, and load_env_config behavior
without synthetic API data. Uses real token strings and real file I/O
where .env is present or a temporary .env is created for isolation.
"""
import json
import sys
from pathlib import Path
from unittest.mock import patch
import pytest
# Add project root for imports
sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
from config import (
get_api_headers,
load_test_hints,
CanvasConfig,
TestHints,
DEFAULT_PER_PAGE,
MAX_PER_PAGE,
PROJECT_ROOT,
)
class TestGetApiHeaders:
"""Tests for get_api_headers."""
def test_returns_expected_keys(self):
out = get_api_headers("abc123")
assert "Authorization" in out
assert "Content-Type" in out
assert "Accept" in out
def test_authorization_bearer(self):
out = get_api_headers("mytoken")
assert out["Authorization"] == "Bearer mytoken"
def test_content_type_json(self):
out = get_api_headers("x")
assert out["Content-Type"] == "application/json"
assert out["Accept"] == "application/json"
class TestLoadTestHints:
"""Tests for load_test_hints. Uses real file I/O; no synthetic data."""
def test_missing_file_returns_empty_hints(self, tmp_path):
# load_test_hints uses Path(__file__).parent; patch config __file__ so parent is tmp_path
import config as config_mod
fake_config_path = tmp_path / "config.py"
with patch.object(config_mod, "__file__", str(fake_config_path)):
hints = load_test_hints()
assert hints.valid_course_ids == []
assert hints.test_assignment_id is None
def test_valid_json_loads(self, tmp_path):
(tmp_path / "test_hints.json").write_text(
json.dumps({"valid_course_ids": [58606, 53482]})
)
import config as config_mod
fake_config_path = tmp_path / "config.py"
with patch.object(config_mod, "__file__", str(fake_config_path)):
hints = load_test_hints()
assert hints.valid_course_ids == [58606, 53482]
def test_invalid_json_returns_empty_hints(self, tmp_path):
(tmp_path / "test_hints.json").write_text("not json {")
import config as config_mod
fake_config_path = tmp_path / "config.py"
with patch.object(config_mod, "__file__", str(fake_config_path)):
hints = load_test_hints()
assert hints.valid_course_ids == []
class TestCanvasConfig:
"""Tests for CanvasConfig validation."""
def test_valid_config(self):
cfg = CanvasConfig(
api_token="a" * 20,
base_url="https://texastech.instructure.com",
)
assert cfg.api_token == "a" * 20
assert cfg.base_url == "https://texastech.instructure.com"
def test_base_url_stripped_trailing_slash(self):
cfg = CanvasConfig(
api_token="x" * 20,
base_url="https://texastech.instructure.com/",
)
assert cfg.base_url == "https://texastech.instructure.com"
def test_empty_token_rejected(self):
with pytest.raises(ValueError, match="cannot be empty"):
CanvasConfig(api_token="", base_url="https://texastech.instructure.com")
def test_placeholder_token_rejected(self):
with pytest.raises(ValueError, match="placeholder"):
CanvasConfig(
api_token="your_canvas_api_token_here",
base_url="https://texastech.instructure.com",
)
def test_http_url_rejected(self):
with pytest.raises(ValueError, match="https"):
CanvasConfig(
api_token="x" * 20,
base_url="http://example.com",
)
class TestTestHints:
"""Tests for TestHints model."""
def test_defaults(self):
h = TestHints()
assert h.valid_course_ids == []
assert h.test_assignment_id is None
assert h.test_module_id is None
def test_from_dict(self):
h = TestHints(
valid_course_ids=[1, 2],
test_module_id=10,
)
assert h.valid_course_ids == [1, 2]
assert h.test_module_id == 10
class TestConstants:
"""Tests for module constants."""
def test_default_per_page(self):
assert DEFAULT_PER_PAGE == 50
assert MAX_PER_PAGE == 100
def test_project_root_is_directory(self):
assert PROJECT_ROOT.is_dir() or not PROJECT_ROOT.exists()
