fix: -o should be relative to the cwd (#130)

Fixes: #77

Also includes:
- refactor(tests): drop custom tmp_dir fixture in favor of tmp_path
- refactor(tests): correctness and removal of dead code
- refactor(tests): simplify fixture path logic

src/poetry_plugin_export/command.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+from pathlib import Path
+
 from cleo.helpers import option
 from poetry.console.commands.group_command import GroupCommand
 from poetry.core.packages.dependency_group import MAIN_GROUP
@@ -99,4 +101,4 @@ def handle(self) -> None:
         exporter.with_hashes(not self.option("without-hashes"))
         exporter.with_credentials(self.option("with-credentials"))
         exporter.with_urls(not self.option("without-urls"))
-        exporter.export(fmt, self.poetry.file.parent, output or self.io)
+        exporter.export(fmt, Path.cwd(), output or self.io)

tests/command/conftest.py

@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-from pathlib import Path
 from typing import TYPE_CHECKING
 
 import pytest
@@ -15,6 +14,8 @@
 
 
 if TYPE_CHECKING:
+    from pathlib import Path
+
     from poetry.installation.executor import Executor
     from poetry.poetry import Poetry
     from poetry.utils.env import Env
@@ -30,8 +31,8 @@ def app(poetry: Poetry) -> PoetryTestApplication:
 
 
 @pytest.fixture
-def env(tmp_dir: str) -> MockEnv:
-    path = Path(tmp_dir) / ".venv"
+def env(tmp_path: Path) -> MockEnv:
+    path = tmp_path / ".venv"
     path.mkdir(parents=True)
     return MockEnv(path=path, is_venv=True)
 

tests/command/test_command_export.py

@@ -13,6 +13,8 @@
 
 
 if TYPE_CHECKING:
+    from pathlib import Path
+
     from _pytest.monkeypatch import MonkeyPatch
     from cleo.testers.command_tester import CommandTester
     from poetry.poetry import Poetry
@@ -89,10 +91,13 @@ def tester(
     return command_tester_factory("export", poetry=poetry)
 
 
-def _export_requirements(tester: CommandTester, poetry: Poetry) -> None:
-    tester.execute("--format requirements.txt --output requirements.txt")
+def _export_requirements(tester: CommandTester, poetry: Poetry, tmp_path: Path) -> None:
+    from tests.helpers import as_cwd
+
+    with as_cwd(tmp_path):
+        tester.execute("--format requirements.txt --output requirements.txt")
 
-    requirements = poetry.file.parent / "requirements.txt"
+    requirements = tmp_path / "requirements.txt"
     assert requirements.exists()
 
     with requirements.open(encoding="utf-8") as f:
@@ -108,17 +113,17 @@ def _export_requirements(tester: CommandTester, poetry: Poetry) -> None:
 
 
 def test_export_exports_requirements_txt_file_locks_if_no_lock_file(
-    tester: CommandTester, poetry: Poetry
+    tester: CommandTester, poetry: Poetry, tmp_path: Path
 ) -> None:
     assert not poetry.locker.lock.exists()
-    _export_requirements(tester, poetry)
+    _export_requirements(tester, poetry, tmp_path)
     assert "The lock file does not exist. Locking." in tester.io.fetch_error()
 
 
 def test_export_exports_requirements_txt_uses_lock_file(
-    tester: CommandTester, poetry: Poetry, do_lock: None
+    tester: CommandTester, poetry: Poetry, tmp_path: Path, do_lock: None
 ) -> None:
-    _export_requirements(tester, poetry)
+    _export_requirements(tester, poetry, tmp_path)
     assert "The lock file does not exist. Locking." not in tester.io.fetch_error()
 
 

tests/conftest.py

@@ -1,13 +1,10 @@
 from __future__ import annotations
 
-import shutil
 import sys
-import tempfile
 
 from pathlib import Path
 from typing import TYPE_CHECKING
 from typing import Any
-from typing import Iterator
 
 import pytest
 
@@ -27,7 +24,6 @@
     from poetry.poetry import Poetry
     from pytest_mock import MockerFixture
 
-    from tests.types import FixtureDirGetter
     from tests.types import ProjectFactory
 
 
@@ -52,15 +48,11 @@ def all(self) -> dict[str, Any]:
 
 
 @pytest.fixture
-def config_cache_dir(tmp_dir: str) -> Path:
-    path = Path(tmp_dir) / ".cache" / "pypoetry"
+def config_cache_dir(tmp_path: Path) -> Path:
+    path = tmp_path / ".cache" / "pypoetry"
     path.mkdir(parents=True)
-    return path
-
 
-@pytest.fixture
-def config_virtualenvs_path(config_cache_dir: Path) -> Path:
-    return config_cache_dir / "virtualenvs"
+    return path
 
 
 @pytest.fixture
@@ -102,25 +94,13 @@ def config(
 
 
 @pytest.fixture
-def tmp_dir() -> Iterator[str]:
-    dir_ = tempfile.mkdtemp(prefix="poetry_")
-
-    yield dir_
-
-    shutil.rmtree(dir_)
+def fixture_root() -> Path:
+    return Path(__file__).parent / "fixtures"
 
 
 @pytest.fixture
-def fixture_base() -> Path:
-    return Path(__file__).parent.joinpath("fixtures")
-
-
-@pytest.fixture
-def fixture_dir(fixture_base: Path) -> FixtureDirGetter:
-    def _fixture_dir(name: str) -> Path:
-        return fixture_base / name
-
-    return _fixture_dir
+def fixture_root_uri(fixture_root: Path) -> str:
+    return fixture_root.as_uri()
 
 
 @pytest.fixture()
@@ -150,14 +130,12 @@ def default_python(current_python: tuple[int, int, int]) -> str:
 
 @pytest.fixture
 def project_factory(
-    tmp_dir: str,
+    tmp_path: Path,
     config: Config,
     repo: Repository,
     installed: Repository,
     default_python: str,
 ) -> ProjectFactory:
-    workspace = Path(tmp_dir)
-
     def _factory(
         name: str,
         dependencies: dict[str, str] | None = None,
@@ -166,7 +144,7 @@ def _factory(
         poetry_lock_content: str | None = None,
         install_deps: bool = True,
     ) -> Poetry:
-        project_dir = workspace / f"poetry-fixture-{name}"
+        project_dir = tmp_path / f"poetry-fixture-{name}"
         dependencies = dependencies or {}
         dev_dependencies = dev_dependencies or {}
 

tests/helpers.py

@@ -1,7 +1,11 @@
 from __future__ import annotations
 
+import os
+
+from contextlib import contextmanager
 from typing import TYPE_CHECKING
 from typing import Any
+from typing import Iterator
 
 from poetry.console.application import Application
 from poetry.core.toml.file import TOMLFile
@@ -109,3 +113,13 @@ def _execute_update(self, operation: Operation) -> int:
 
     def _execute_remove(self, operation: Operation) -> int:
         return 0
+
+
+@contextmanager
+def as_cwd(path: Path) -> Iterator[Path]:
+    old_cwd = os.getcwd()
+    os.chdir(path)
+    try:
+        yield path
+    finally:
+        os.chdir(old_cwd)