chore: stricter mypy (#2053)

* chore: improve mypy

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* chore(types): type functions in tests

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* chore(types): No partial types in tests

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

test/test_projects/__main__.py

@@ -8,7 +8,7 @@ from argparse import ArgumentParser
 from pathlib import Path
 
 
-def main():
+def main() -> None:
     parser = ArgumentParser(
         prog="python -m test.test_projects", description="Generate a test project to check it out"
     )

test/test_projects/base.py

@@ -22,11 +22,11 @@ class TestProject:
     files: FilesDict
     template_context: TemplateContext
 
-    def __init__(self):
+    def __init__(self) -> None:
         self.files = {}
         self.template_context = {}
 
-    def generate(self, path: Path):
+    def generate(self, path: Path) -> None:
         for filename, content in self.files.items():
             file_path = path / filename
             file_path.parent.mkdir(parents=True, exist_ok=True)
@@ -37,7 +37,7 @@ class TestProject:
 
                 f.write(content)
 
-    def copy(self):
+    def copy(self) -> TestProject:
         other = TestProject()
         other.files = self.files.copy()
         other.template_context = self.template_context.copy()

test/test_projects/c.py

@@ -78,13 +78,13 @@ version = 0.1.0
 
 def new_c_project(
     *,
-    spam_c_top_level_add="",
-    spam_c_function_add="",
-    setup_py_add="",
-    setup_py_extension_args_add="",
-    setup_py_setup_args_add="",
-    setup_cfg_add="",
-):
+    spam_c_top_level_add: str = "",
+    spam_c_function_add: str = "",
+    setup_py_add: str = "",
+    setup_py_extension_args_add: str = "",
+    setup_py_setup_args_add: str = "",
+    setup_cfg_add: str = "",
+) -> TestProject:
     project = TestProject()
 
     project.files.update(