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.
And quite a bit more manual changes. The idea is that typing of our
tests can be a bit more loose, so we assume PHPDoc is mostly correct. If
that happens to be wrong, it should be caught by the tests themselves.
PR #3513, developed by @SaidkhojaIftikhor, has been stuck for some time awaiting tests. This is the first of three PRs to replace that one. This PR also allows the use of slash as a thousands separator or decimal separator or currency symbol. These are, of course, very unusual situations; the main reason to support them is so that PhpSpreadsheet code will not crash when users set those options. New Calculation/Engine and AdvancedValueBinder tests confirm these. While making these changes, a few errors were found in AdvancedValueBinder and Calculation/Engine/FormattedNumber, e.g. currencies weren't parsed correctly when period was used as the group separator and comma as the decimal separator. Tests have been added for those situations.
Adrien Crivelli
oleibman