This adds screenshots for broken e2e tests. The screenshots will also be uploaded to an Amazon S3 instance from Travis CI so they can be viewed. If run locally, there will be a screenshots directory created where they can be viewed
If there is a failed e2e test you'll see a block under `travis.sh after` in the build log in Travis CI that will give the URLs for the images.
* Adding screenshot capabilities to all tests
* trying screenshots on S3
* try to get a failed test
* finding the right path
* fixing yml
* only taking failed screenshots
* fixing yml
* moving paths to env
* fixing target
* try without artifact target
* fixing test
* setting back temporary changes
* fixing spacing
* unneeded change
* trying different uploader
* Force a failed test
* fixing test again
* fixing unneeded change
* updating git ignore
[According to the WooCommerce wiki](https://github.com/woocommerce/woocommerce/wiki/Order-and-Order-Line-Item-Data) and `WC_REST_Orders_Controller`, WooCommerce stores country codes using the ISO 3166-1 alpha-2 (2 character) standard. However, the `WC_Tests_Order_Functions::test_wc_get_order_address_params()` test method was using 'USA' instead of 'US'.
As @claudiosanches pointed out, there isn't much real-world need for `WC_Install::get_tables()` to sort results. Instead, sort the returned value within the `WC_Tests_Install::test_get_tables()` method.
Since custom tables can be registered within WooCommerce via the 'woocommerce_install_get_tables' filter, it's helpful to ensure that `WC_Install::get_tables()` automatically sorts the table names alphabetically.
This helps avoid false failures when testing a plugin that uses a custom table against the WooCommerce core test suite, as queries like `WC_Tests_Install::test_get_tables()` assumes that tables will be returned in alphabetical order.
WC unit tests don't need to remove data from the database before finishing. `WP_UnitTestCase` creates a transaction before each test starts and roll it back after it ends, so data is never actually written to the database. This simplifies the tests and makes them faster.
parent::setUp() should be called inside test setup methods to make sure database changes are automatically reverted after each test is executed. This way it is not necessary to manually remove inserted data.
This commits adds a call to `parent::setUp()` inside WC_Tests_Product_CSV_Importer::setUp(). This is necessary to make sure transactions are used on database calls and thus tests don't have to worry about cleaning inserted data.
I found this issue while debugging https://github.com/woocommerce/woocommerce-product-tables-feature-plugin/issues/81. Turns out this test was failing because WC_Tests_Product_CSV_Importer::test_import() was leaving one post in the database due to a bug in the custom product tables plugin.