WIP: add tests

tests/__init__.py

@@ -1,3 +1,4 @@
 # SPDX-FileCopyrightText: 2022-present Angus Hollands <goosey15@gmail.com>
 #
 # SPDX-License-Identifier: MIT
+import pytest

tests/conftest.py

@@ -0,0 +1,95 @@
+# SPDX-FileCopyrightText: 2022-present Angus Hollands <goosey15@gmail.com>
+# SPDX-FileCopyrightText: 2022-present Ofek Lev <oss@ofek.dev>
+#
+# SPDX-License-Identifier: MIT
+import errno
+import shutil
+import stat
+import tempfile
+from contextlib import contextmanager
+import os
+import pytest
+
+
+def touch_file(path):
+    with open(path, "a"):
+        os.utime(path, None)
+
+
+def create_file(path, contents):
+    with open(path, "w") as f:
+        f.write(contents)
+
+
+def handle_remove_readonly(func, path, exc):  # no cov
+    # PermissionError: [WinError 5] Access is denied: '...\\.git\\...'
+    if func in (os.rmdir, os.remove, os.unlink) and exc[1].errno == errno.EACCES:
+        os.chmod(path, stat.S_IRWXU | stat.S_IRWXG | stat.S_IRWXO)
+        func(path)
+    else:
+        raise
+
+
+@pytest.fixture
+def temp_dir():
+    directory = tempfile.mkdtemp()
+    try:
+        directory = os.path.realpath(directory)
+        yield directory
+    finally:
+        shutil.rmtree(directory, ignore_errors=False, onerror=handle_remove_readonly)
+
+
+@contextmanager
+def create_project(directory, metadata, version):
+    project_dir = os.path.join(directory, "my-app")
+    os.mkdir(project_dir)
+
+    project_file = os.path.join(project_dir, "pyproject.toml")
+    create_file(project_file, metadata)
+
+    package_dir = os.path.join(project_dir, "my_app")
+    os.mkdir(package_dir)
+
+    package_file = os.path.join(project_dir, "package.json")
+    package = f"""
+{{
+  "name": "my-awesome-package",
+  "version": "{version}"
+}}
+    """
+    create_file(package_file, package)
+
+    other_package_file = os.path.join(project_dir, "other-package.json")
+    create_file(other_package_file, package)
+
+    touch_file(os.path.join(package_dir, "__init__.py"))
+    touch_file(os.path.join(package_dir, "foo.py"))
+    touch_file(os.path.join(package_dir, "bar.py"))
+    touch_file(os.path.join(package_dir, "baz.py"))
+
+    origin = os.getcwd()
+    os.chdir(project_dir)
+    try:
+        yield project_dir
+    finally:
+        os.chdir(origin)
+
+
+@pytest.fixture
+def new_project(temp_dir, request):
+    with create_project(
+        temp_dir,
+        """\
+[build-system]
+requires = ["hatchling", "hatch-vcs"]
+build-backend = "hatchling.build"
+[project]
+name = "my-app"
+dynamic = ["version"]
+[tool.hatch.version]
+source = "nodejs"
+""",
+        request.param,
+    ) as project:
+        yield project

tests/test_version_config.py

@@ -0,0 +1,75 @@
+# SPDX-FileCopyrightText: 2022-present Angus Hollands <goosey15@gmail.com>
+#
+# SPDX-License-Identifier: MIT
+import pytest
+
+from hatch_nodejs_version.version_source import NodeJSVersionSource
+
+
+GOOD_NODE_PYTHON_VERSIONS = [
+    ("1.4.5", "1.4.5"),
+    ("1.4.5-a0", "1.4.5a0"),
+    ("1.4.5-a", "1.4.5a"),
+    ("1.4.5-b0", "1.4.5b0"),
+    ("1.4.5-c1", "1.4.5c1"),
+    ("1.4.5-rc0", "1.4.5rc0"),
+    ("1.4.5-alpha0", "1.4.5alpha0"),
+    ("1.4.5-beta0", "1.4.5beta0"),
+    ("1.4.5-pre9", "1.4.5pre9"),
+    ("1.4.5-preview0", "1.4.5preview0"),
+]
+
+BAD_NODE_VERSIONS = [
+    "1.4",
+    "1.4.5a0",
+    "1.4.5-c0.post1",
+    "1.4.5-rc0.post1.dev2",
+]
+BAD_PYTHON_VERSIONS = [
+    "1.4",
+    "1.4.5ab",
+    "1.4.5-c0.smoke2",
+    "1.4.5rc.post1@dev2",
+]
+
+
+class TestDefault:
+    @pytest.mark.parametrize(
+        "new_project, python_version", GOOD_NODE_PYTHON_VERSIONS, indirect=["new_project"]
+    )
+    @pytest.mark.parametrize("config", [{"path": "other-package.json"}, {}])
+    def test_read_correct(self, new_project, python_version, config):
+        version_source = NodeJSVersionSource(new_project, config)
+        data = version_source.get_version_data()
+        assert data["version"] == python_version
+
+    @pytest.mark.parametrize("python_version,node_version", GOOD_NODE_PYTHON_VERSIONS)
+    @pytest.mark.parametrize("config", [{"path": "other-package.json"}, {}])
+    @pytest.mark.parametrize("new_project", ["1.0.0"], indirect=True)
+    def test_write_correct(self, new_project, python_version, node_version, config):
+        version_source = NodeJSVersionSource(new_project, config)
+        data = version_source.get_version_data()
+        version_source.set_version(python_version, data)
+        data = version_source.get_version_data()
+        assert data["version"] == node_version
+
+    @pytest.mark.parametrize(
+        "new_project",
+        BAD_NODE_VERSIONS,
+        indirect=["new_project"],
+    )
+    @pytest.mark.parametrize("config", [{"path": "other-package.json"}, {}])
+    def test_read_incorrect(self, new_project, config):
+        version_source = NodeJSVersionSource(new_project, config)
+
+        with pytest.raises(ValueError, match=".* did not match regex"):
+            version_source.get_version_data()
+
+    @pytest.mark.parametrize("python_version,", BAD_PYTHON_VERSIONS)
+    @pytest.mark.parametrize("new_project", ["1.0.0"], indirect=True)
+    @pytest.mark.parametrize("config", [{"path": "other-package.json"}, {}])
+    def test_write_incorrect(self, new_project, python_version, config):
+        version_source = NodeJSVersionSource(new_project, config)
+        data = version_source.get_version_data()
+        with pytest.raises(ValueError, match=".* did not match regex"):
+            version_source.set_version(python_version, data)