TST: use generated package files

tests/test_project.py

@@ -28,22 +28,54 @@
 from .conftest import MESON_VERSION, in_git_repo_context, metadata, package_dir
 
 
-def test_unsupported_python_version(package_unsupported_python_version):
+def test_unsupported_python_version(tmp_path):
+    tmp_path.joinpath('pyproject.toml').write_text(textwrap.dedent('''
+        [project]
+        name = 'test'
+        version = '1.0.0'
+        requires-python = '==1.0.0'
+    '''), encoding='utf8')
+
+    tmp_path.joinpath('meson.build').write_text(textwrap.dedent('''
+        project('test', version: '1.0.0')
+    '''), encoding='utf8')
+
     with pytest.raises(mesonpy.MesonBuilderError, match='The package requires Python version ==1.0.0'):
-        with mesonpy._project():
-            pass
+        mesonpy.Project(tmp_path, tmp_path / 'build')
+
 
+def test_missing_meson_version(tmp_path):
+    tmp_path.joinpath('pyproject.toml').write_text(textwrap.dedent('''
+        [build-system]
+        build-backend = 'mesonpy'
+        requires = ['meson-python']
+    '''), encoding='utf8')
+
+    tmp_path.joinpath('meson.build').write_text(textwrap.dedent('''
+        project('test')
+    '''), encoding='utf8')
 
-def test_missing_meson_version(package_missing_meson_version):
     with pytest.raises(pyproject_metadata.ConfigurationError, match='Section "project" missing in pyproject.toml'):
-        with mesonpy._project():
-            pass
+        mesonpy.Project(tmp_path, tmp_path / 'build')
+
 
+def test_missing_dynamic_version(tmp_path):
+    tmp_path.joinpath('pyproject.toml').write_text(textwrap.dedent('''
+        [build-system]
+        build-backend = 'mesonpy'
+        requires = ['meson-python']
+
+        [project]
+        name = 'test'
+        dynamic = ['version']
+    '''), encoding='utf8')
+
+    tmp_path.joinpath('meson.build').write_text(textwrap.dedent('''
+        project('test')
+    '''), encoding='utf8')
 
-def test_missing_dynamic_version(package_missing_dynamic_version):
     with pytest.raises(pyproject_metadata.ConfigurationError, match='Field "version" declared as dynamic but'):
-        with mesonpy._project():
-            pass
+        mesonpy.Project(tmp_path, tmp_path / 'build')
 
 
 @pytest.mark.skipif(MESON_VERSION < (1, 6, 0), reason='meson too old')