Add integration tests for product urls rewrite generation

[aloross]

Adding integration tests for the product url rewrites generation.

Description

This pull request contains integration tests for the product url rewrite generation. We were trying to fix the permanent redirection issue when updating an url_key at store level (see the related issues below).

The issue was caused by $this->urlPersist->deleteByData being executed before the replace process.
We discovered that, in the 2.2-dev branch, the issue was fixed by side effect in this commit: a0d3a63. This PR just provide the tests we were using when fixing the issue but the fix itself is already merged (see: a0d3a63#diff-4e1fd4e484fc5142fc23f8ef0cde6718L53).

Fixed Issues

Related to

• Permanent 301 redirect is not generated when product url changes on storeview scope #13240 (comment)
• Magento don't create product redirect if URL key on store view level was changed. #10073

Maybe related to

• After upgrade to 2.1.3 url rewrite problem multi store #8227
• URL Rewrite issues occur very often /catalog/product/view/id/711/s/product-name/category/16/ #5863
• Permanent Redirect for old URL missing via API #8957

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-cicd2]

All committers have signed the CLA.

[magento-engcom-team]

@adrien-louis-r thank you for contributing. Please accept Community Contributors team invitation here to gain extended permissions for this repository.

[dmanners]

Hi @adrien-louis-r thank you for this PR. I will have a look through the tests and process this pull request for you.