Drupal 7.x core tests dissappeared

D7 tests were working okay on 2nd September - example: https://www.drupal.org/pift-ci-job/2466746

...but by 3rd September they were failing: https://www.drupal.org/pift-ci-job/2467463

AFAICS the main difference in the build files are:

     assemble_codebase:
-      checkout_core_d7:
+      checkout_core:

-      gather_dependencies_d7:
+      composer.core_install:
+        options: 'install --prefer-dist --no-suggest --no-interaction --no-progress'
+        halt-on-fail: true
+      gather_dependencies:

-      run_tests_d7:
-        testgroups: '--all'
+      run_tests.standard:
         types: 'Simpletest,PHPUnit-Unit,PHPUnit-Kernel,PHPUnit-Functional'
+        testgroups: '--all'

...and a couple of other things relating to composer.

So it looks like a lot of the D7-specific versions of the steps have gone... I'm not sure whether that's because of the absence of the D7 configs for core as @joseph.olstad pointed out in the IS?

I'll attach a successful and failing build file in case they're any use.

I'm not certain how all the pieces fit together but AFAICS the integration between d.o and the dispatcher is this: https://www.drupal.org/project/project_issue_file_test and it's there that the "legacy" build options are set up for D7 tests.

No recent code changes in that project, so I suspect the thing that's broken testing is a config change relating to the 7.x branch which is why we're not seeing the usual options for it at https://www.drupal.org/node/3060/qa

I may be completely wrong about all of that!

Either way it doesn't look to me like the problem is fixable by anyone without more access and a much better understanding of the drupalci system than I have!

Yup @mixologic, @hestenet and @drumm all worked on getting this fixed. Thanks!

The problem was something to do with a housekeeping edit to the 7.x-dev release node having broken some of the special logic applied to D7 tests.