chore: checkpoint baseline (routers, tests, pyproject)

tests/test_config.py

@@ -0,0 +1,76 @@
+"""Tests for configuration loading and validation."""
+
+import pytest
+
+from src.config import load_config, setup_logging
+
+
+class TestLoadConfig:
+    def test_load_valid_config(self, config_file):
+        config = load_config(config_file)
+        assert config.targets.subreddits[0].name == "pics"
+        assert config.targets.subreddits[0].limit == 25
+        assert config.targets.users[0].name == "testuser"
+        assert config.download.min_score == 10
+        assert config.download.skip_nsfw is True
+        assert config.rate_limit.requests_per_minute == 10
+
+    def test_missing_config_raises(self):
+        with pytest.raises(FileNotFoundError):
+            load_config("nonexistent.yaml")
+
+    def test_empty_targets_raises(self, tmp_path):
+        config_path = tmp_path / "empty.yaml"
+        config_path.write_text("targets:\n  subreddits: []\n  users: []\n")
+        with pytest.raises(ValueError, match="No targets configured"):
+            load_config(str(config_path))
+
+    def test_blacklist_lowercase(self, tmp_path):
+        config_path = tmp_path / "config.yaml"
+        config_path.write_text("""
+targets:
+  subreddits:
+    - name: "test"
+      limit: 10
+download: {}
+rate_limit: {}
+logging: {}
+blacklist:
+  authors:
+    - "SpAmMeR"
+  subreddits:
+    - "BadSub"
+  title_keywords:
+    - "BUY NOW"
+  domains:
+    - "Evil.COM"
+""")
+        config = load_config(str(config_path))
+        assert config.blacklist.authors == ["spammer"]
+        assert config.blacklist.subreddits == ["badsub"]
+        assert config.blacklist.title_keywords == ["buy now"]
+        assert config.blacklist.domains == ["evil.com"]
+
+    def test_default_values(self, tmp_path):
+        config_path = tmp_path / "minimal.yaml"
+        config_path.write_text("""
+targets:
+  subreddits:
+    - name: "test"
+""")
+        config = load_config(str(config_path))
+        assert config.download.output_dir == "./downloads"
+        assert config.download.min_score == 10
+        assert config.rate_limit.requests_per_minute == 10
+
+
+class TestSetupLogging:
+    def test_creates_logger(self, sample_config):
+        logger = setup_logging(sample_config.logging)
+        assert logger.name == "reddit_collector"
+
+    def test_log_level(self, sample_config):
+        import logging
+
+        logger = setup_logging(sample_config.logging)
+        assert logger.level == logging.DEBUG