Re-add tests to sdist package

- fixes #1278

Author: mrbean-bremen

CHANGES.md

@@ -2,6 +2,13 @@
 The released versions correspond to PyPI releases.
 `pyfakefs` versions follow [Semantic Versioning](https://semver.org/).
 
+
+## Unreleased
+
+### Fixes
+* fixed packaging issue: tests had not been added to sdist
+  (see [#1278](https://github.com/pytest-dev/pyfakefs/issues/1278))
+
 ## [Version 6.1.0](https://pypi.python.org/pypi/pyfakefs/6.1.0) (2026-02-06)
 Changes back-link references to weak references.
 

MANIFEST.in

@@ -1,4 +1,3 @@
 include COPYING
 include *.md
 include *.ini
-include *.txt

pyproject.toml

@@ -73,7 +73,15 @@ doc = [
 
 [tool.setuptools]
 include-package-data = true
-packages = ["pyfakefs"]
+packages = [
+    "pyfakefs",
+    "pyfakefs.tests",
+    "pyfakefs.tests.fixtures",
+    "pyfakefs.pytest_tests",
+    "pyfakefs.pytest_tests.hook_test",
+    "pyfakefs.pytest_tests.ns_package.test",
+    "pyfakefs.pytest_tests.ns_package.test.ns_package.test",
+]
 
 [tool.setuptools.package-data]
 where = ["pyfakefs"]