chore: checkpoint baseline (routers, tests, pyproject)

tests/test_reddit_client.py

@@ -0,0 +1,43 @@
+"""Tests for Reddit client."""
+
+import time
+
+from src.reddit_client import Post, RateLimiter
+
+
+class TestRateLimiter:
+    def test_first_request_no_wait(self):
+        limiter = RateLimiter(requests_per_minute=60)
+        start = time.time()
+        limiter.wait()
+        elapsed = time.time() - start
+        assert elapsed < 0.1
+
+    def test_respects_rate_limit(self):
+        limiter = RateLimiter(requests_per_minute=120)  # 0.5s interval
+        limiter.wait()
+        limiter.last_request = time.time()  # simulate request just happened
+        start = time.time()
+        limiter.wait()
+        elapsed = time.time() - start
+        assert elapsed >= 0.4  # Should wait ~0.5s
+
+
+class TestPost:
+    def test_post_creation(self):
+        post = Post(
+            id="test",
+            subreddit="pics",
+            author="user",
+            title="Title",
+            url="https://example.com",
+            score=100,
+            created_utc=1700000000.0,
+            over_18=False,
+            is_gallery=False,
+            preview=None,
+            media_metadata=None,
+        )
+        assert post.id == "test"
+        assert post.permalink is None
+        assert post.flair is None