configure coverage

Author: keewis

pyproject.toml

@@ -63,3 +63,11 @@ known-third-party = []
 
 [tool.ruff.lint.flake8-tidy-imports]
 ban-relative-imports = "all"
+
+[tool.coverage.run]
+source = ["xarray_array_testing"]
+branch = true
+
+[tool.coverage.report]
+show_missing = true
+exclude_lines = ["pragma: no cover", "if TYPE_CHECKING"]