test: add a test for skipping covered functions

tests/test_html.py

@@ -180,6 +180,8 @@ def run_coverage(
  def assert_htmlcov_files_exist(self) -> None:
  """Assert that all the expected htmlcov files exist."""
  self.assert_exists("htmlcov/index.html")
+ self.assert_exists("htmlcov/function_index.html")
+ self.assert_exists("htmlcov/class_index.html")
  self.assert_exists("htmlcov/main_file_py.html")
  self.assert_exists("htmlcov/helper1_py.html")
  self.assert_exists("htmlcov/helper2_py.html")
@@ -617,6 +619,26 @@ def normal():
  res = self.run_coverage(covargs=dict(source="."), htmlargs=dict(skip_covered=True))
  assert res == 100.0
  self.assert_doesnt_exist("htmlcov/main_file_py.html")
+ # Since there are no files to report, we can't collect any region
+ # information, so there are no region-based index pages.
+ self.assert_doesnt_exist("htmlcov/function_index.html")
+ self.assert_doesnt_exist("htmlcov/class_index.html")
+
+ def test_report_skip_covered_100_functions(self) -> None:
+ self.make_file("main_file.py", """\
+ def normal():
+ print("z")
+ def abnormal():
+ print("a")
+ normal()
+ """)
+ res = self.run_coverage(covargs=dict(source="."), htmlargs=dict(skip_covered=True))
+ assert res == 80.0
+ self.assert_exists("htmlcov/main_file_py.html")
+ # We have a file to report, so we get function and class index pages,
+ # even though there are no classes.
+ self.assert_exists("htmlcov/function_index.html")
+ self.assert_exists("htmlcov/class_index.html")
 
  def make_init_and_main(self) -> None:
  """Helper to create files for skip_empty scenarios."""