feat: Mastodon Post Composition and Publishing

tests/test_run_logging.py

@@ -8,9 +8,22 @@ from pathlib import Path
 
 import pytest
 
+from datetime import date
+
 from tenbackward import main as main_module
 from tenbackward.logging_setup import JsonFormatter
 from tenbackward.main import main
+from tenbackward.matching import MatchedPost
+from tenbackward.publishing import PublishError
+
+
+def _match(path: str) -> MatchedPost:
+    return MatchedPost(
+        path=path,
+        title=path,
+        date=date(2016, 8, 4),
+        url=f"https://blog.example.com/2016/08/04/{path.split('-', 3)[-1].removesuffix('.md')}/",
+    )
 
 
 @pytest.fixture()
@@ -38,7 +51,11 @@ def _seed_state(data_dir: Path, ids: list[str]) -> None:
 def test_run_emits_one_info_summary_on_success(env_setup, data_dir, capture_logger, monkeypatch) -> None:
     monkeypatch.setenv("DATA_DIR", str(data_dir))
 
-    monkeypatch.setattr(main_module, "_iter_candidates", lambda config: ["new-1", "already-1"])
+    def _stub_publish(config, posts, **_kwargs):
+        return "stubbed"
+
+    monkeypatch.setattr(main_module, "_iter_candidates", lambda config: [_match("new-1"), _match("already-1")])
+    monkeypatch.setattr(main_module, "publish_mastodon", _stub_publish)
 
     _seed_state(data_dir, ["already-1"])
 
@@ -100,7 +117,12 @@ def test_run_distinguishes_posted_from_skipped_via_ids(env_setup, data_dir, capt
     monkeypatch.setattr(
         main_module,
         "_iter_candidates",
-        lambda config: ["alpha", "beta", "gamma"],
+        lambda config: [_match("alpha"), _match("beta"), _match("gamma")],
+    )
+    monkeypatch.setattr(
+        main_module,
+        "publish_mastodon",
+        lambda config, posts, **_kwargs: "stubbed",
     )
     _seed_state(data_dir, ["beta"])
 
@@ -114,3 +136,28 @@ def test_run_distinguishes_posted_from_skipped_via_ids(env_setup, data_dir, capt
     assert "beta" not in payload["posted_ids"]
     assert payload["skipped"] == 1
     assert payload["posted"] == 2
+
+
+def test_run_publish_failure_leaves_state_untouched(
+    env_setup, data_dir, capture_logger, monkeypatch
+) -> None:
+    monkeypatch.setenv("DATA_DIR", str(data_dir))
+
+    def _boom(config, posts, **_kwargs):
+        raise PublishError("publish_failed: stub")
+
+    monkeypatch.setattr(main_module, "_iter_candidates", lambda config: [_match("alpha")])
+    monkeypatch.setattr(main_module, "publish_mastodon", _boom)
+
+    rc = main()
+    assert rc != 0
+
+    from tenbackward.state import load_posted
+
+    assert load_posted(data_dir) == []
+    error_lines = [
+        line
+        for line in _run_lines(capture_logger)
+        if line.get("level") == "ERROR"
+    ]
+    assert any(line.get("event") == "pipeline_error" for line in error_lines)