DEVX-61: feat: single-source-of-truth config via [tool.devx] in pyproject.toml

tests/unit/test_config.py

@@ -1,12 +1,14 @@
 """Unit tests for config module constants."""
 
+import importlib
+from pathlib import Path
+
 from devx.config import (
     CONVENTIONAL_RE,
     DEFAULT_PER_PAGE,
     DEFAULT_TIMEOUT,
     GITEA_API_URL,
     MAX_RETRIES,
-    REPO_OWNER,
     RETRY_BACKOFF_BASE,
     RETRY_STATUS_CODES,
     TASK_ID_RE,
@@ -20,25 +22,10 @@ class TestConfigConstants:
         assert "api/v1" in GITEA_API_URL
         assert "api/v1" in VIKUNJA_API_URL
 
-    def test_project_ids(self, monkeypatch: object) -> None:
-        """VIKUNJA_PROJECT_ID defaults to 6 when DEVX_VIKUNJA_PROJECT_ID is not set."""
-        monkeypatch.delenv("DEVX_VIKUNJA_PROJECT_ID", raising=False)
-        import importlib
-
-        import devx.config as cfg
-
-        importlib.reload(cfg)
-        assert cfg.VIKUNJA_PROJECT_ID == 6
-        # Restore module state
-        importlib.reload(cfg)
-
     def test_timeouts(self) -> None:
         assert DEFAULT_TIMEOUT == 30
         assert DEFAULT_PER_PAGE == 50
 
-    def test_owner(self) -> None:
-        assert REPO_OWNER == ""
-
     def test_task_prefix(self) -> None:
         assert TASK_PREFIX == "DEVX"
 
@@ -64,28 +51,100 @@ class TestConfigConstants:
         assert 503 in RETRY_STATUS_CODES
         assert 504 in RETRY_STATUS_CODES
 
-    def test_env_var_override(self, monkeypatch: object) -> None:
-        """Test that env vars override defaults at import time."""
-        # We can't easily re-import the module, but we can verify
-        # the constants respect env vars by checking the module source.
+
+class TestPyprojectReading:
+    """Test that config.py reads [tool.devx] from pyproject.toml."""
+
+    def test_pyproject_provides_values(self) -> None:
+        """When pyproject.toml has [tool.devx], values are read from it."""
         import devx.config as cfg
 
-        assert cfg.GITEA_API_URL  # always non-empty
-        assert cfg.VIKUNJA_API_URL  # always non-empty
+        # devx's own pyproject.toml has task_prefix=DEVX, vikunja_project_id=8
+        assert cfg.TASK_PREFIX == "DEVX"
+        assert cfg.VIKUNJA_PROJECT_ID == 8
+        assert cfg.REPO_OWNER == "oblachno-oss"
+
+    def test_env_overrides_pyproject(self, monkeypatch: object) -> None:
+        """Env vars take priority over pyproject.toml."""
+        monkeypatch.setenv("DEVX_TASK_PREFIX", "CUSTOM")
+        import devx.config as cfg
+
+        importlib.reload(cfg)
+        assert cfg.TASK_PREFIX == "CUSTOM"
+        assert cfg.TASK_ID_RE.search("CUSTOM-42")
+        monkeypatch.delenv("DEVX_TASK_PREFIX", raising=False)
+        importlib.reload(cfg)
+
+    def test_no_pyproject_falls_back_to_defaults(self, monkeypatch: object, tmp_path: Path) -> None:
+        """When no pyproject.toml exists, defaults are used."""
+        monkeypatch.chdir(tmp_path)
+        monkeypatch.delenv("DEVX_TASK_PREFIX", raising=False)
+        monkeypatch.delenv("DEVX_VIKUNJA_PROJECT_ID", raising=False)
+        monkeypatch.delenv("DEVX_REPO_OWNER", raising=False)
+        import devx.config as cfg
+
+        importlib.reload(cfg)
+        assert cfg.TASK_PREFIX == "DEVX"
+        assert cfg.VIKUNJA_PROJECT_ID == 6
+        assert cfg.REPO_OWNER == ""
+        importlib.reload(cfg)
+
+    def test_invalid_toml_falls_back_to_defaults(self, monkeypatch: object, tmp_path: Path) -> None:
+        """When pyproject.toml is invalid TOML, defaults are used."""
+        (tmp_path / "pyproject.toml").write_text("invalid toml {{{")
+        monkeypatch.chdir(tmp_path)
+        monkeypatch.delenv("DEVX_TASK_PREFIX", raising=False)
+        import devx.config as cfg
+
+        importlib.reload(cfg)
+        assert cfg.TASK_PREFIX == "DEVX"
+        importlib.reload(cfg)
+
+    def test_no_devx_section_falls_back_to_defaults(self, monkeypatch: object, tmp_path: Path) -> None:
+        """When pyproject.toml has no [tool.devx], defaults are used."""
+        (tmp_path / "pyproject.toml").write_text('[project]\nname = "test"\n')
+        monkeypatch.chdir(tmp_path)
+        monkeypatch.delenv("DEVX_TASK_PREFIX", raising=False)
+        monkeypatch.delenv("DEVX_VIKUNJA_PROJECT_ID", raising=False)
+        import devx.config as cfg
+
+        importlib.reload(cfg)
+        assert cfg.TASK_PREFIX == "DEVX"
+        assert cfg.VIKUNJA_PROJECT_ID == 6
+        importlib.reload(cfg)
+
+    def test_tool_not_dict_falls_back_to_defaults(self, monkeypatch: object, tmp_path: Path) -> None:
+        """When [tool] is not a dict, defaults are used."""
+        (tmp_path / "pyproject.toml").write_text('tool = "not a dict"\n')
+        monkeypatch.chdir(tmp_path)
+        monkeypatch.delenv("DEVX_TASK_PREFIX", raising=False)
+        import devx.config as cfg
+
+        importlib.reload(cfg)
+        assert cfg.TASK_PREFIX == "DEVX"
+        importlib.reload(cfg)
+
+    def test_devx_not_dict_falls_back_to_defaults(self, monkeypatch: object, tmp_path: Path) -> None:
+        """When [tool.devx] is not a dict, defaults are used."""
+        (tmp_path / "pyproject.toml").write_text('[tool]\ndevx = "not a dict"\n')
+        monkeypatch.chdir(tmp_path)
+        monkeypatch.delenv("DEVX_TASK_PREFIX", raising=False)
+        import devx.config as cfg
+
+        importlib.reload(cfg)
+        assert cfg.TASK_PREFIX == "DEVX"
+        importlib.reload(cfg)
 
 
 class TestTaskPrefixOverride:
     def test_task_prefix_from_env(self, monkeypatch: object) -> None:
         """Verify TASK_PREFIX reads from DEVX_TASK_PREFIX env var."""
         monkeypatch.setenv("DEVX_TASK_PREFIX", "INFRA")
-        import importlib
-
         import devx.config as cfg
 
         importlib.reload(cfg)
         assert cfg.TASK_PREFIX == "INFRA"
         assert cfg.TASK_ID_RE.search("INFRA-42")
         assert not cfg.TASK_ID_RE.search("DEVX-42")
-        # Restore
         monkeypatch.delenv("DEVX_TASK_PREFIX", raising=False)
         importlib.reload(cfg)