Change "mixed" declarations to more accurate types in test members; in particular, change those that would be flagged if we were to run Phpstan at level 9 (we currently run level 8). I may or may not follow up with source code (over 700 level-9 problems remain for src), but, as with strict typing, there is no reason to avoid the effort for test members.
It was necessary to update some doc blocks in src to accommodate this change. However, no executable code is touched.
While we might never be able to have 100% of our code strict, we can at
the very least do it for all of our tests. This ensures that our tests
are using our API with the types as intended by the test author, and not
silently be cast to what our API requires.
* Fix reading of files in the root of a zip
Xlsx.php relies in dirname($filename) for path generation. When path is a bare filename (i.e. files in the root of the zip file), dirname($filename) returns a relative path to the current directory ("."). This is ok for filesystems, but not when accesing contents in a zip file.
Xlsx documents with files in the root of the zip container are not common, but legit. I've found it to happen in files generated by Google Campaign Manager 360.
* Update Xlsx.php
* Update Xlsx.php
* Update CHANGELOG.md
* Add files via upload
* Create XlsxRootZipFilesTest.php
* Update XlsxRootZipFilesTest.php
* Add files via upload
* Delete rootZipFiles.xlsx
* Update XlsxRootZipFilesTest.php
* Update Xlsx.php