Migration path for Simpletest 7.x

Added organization support to Anexus IT

Will need to be submitted again to Core since moving from sandbox.

Ever drop an issue summary in a comment? It happened to me.

Updated and wrote a test.

Re-rolled. I regret that I can't provide an interdiff, due to the conflicts in the {variable} table dump.

Re-rolled in accordance with #2533886: [meta] Move module-specific migration support into the particular modules supported.

I think we agreed before on asserting empty strings and similar defaults buys us nothing.

Fixed. Can't include an interdiff, unfortunately, due to conflicts with the {variable} dump.

Looks great.

Thanks to @phenaproxima and @mikeryan for the patch walk through. I'm a little rusty on this Migrate stuff, but hoping to get better starting today. :)

+      'name' => 'simpletest_clear_results',
+      'value' => 'b:1;',
+    ))->values(array(
+      'name' => 'simpletest_httpauth_method',
+      'value' => 'i:1;',
+    ))->values(array(
+      'name' => 'simpletest_httpauth_password',
+      'value' => 's:6:"foobaz";',
+    ))->values(array(
+      'name' => 'simpletest_httpauth_username',
+      'value' => 's:7:"testbot";',
+    ))->values(array(
+      'name' => 'simpletest_verbose',
+      'value' => 'b:1;',
+    ))->values(array(

phenaproxima confirmed to me that he's gone through the module painstakingly to ensure these are all the variables that need migrating. In my cursory check that seems to be correct.

This one:

+    ))->values(array(
+      'name' => 'simpletest_httpauth_password',
+      'value' => 's:6:"foobaz";',

I called specific attention to as in "we can't possibly store the httpauth_password in plain text, can we?" It turns out, we can. :( Confirmed on a fresh 7.x database.

-#5b6552f715939e2b33c22779e47e73e3
+#029f6b476578be5d7449a86251be1c77

I had no idea wtf that was, and phenaproxima explained it's a sanity check to ensure the migrate-drupal.sh script was invoked properly. Seems like that makes it really easy for collisions/long issue dependency chains to happen. :\ Not introduced in this patch, though.

+label: Drupal 7 simpletest configuration

The nittiest of picks, but that should be SimpleTest. ;) Fixed on commit. This doesn't show up anywhere in core, but does in the full Migrate UI that's currently housed in the https://www.drupal.org/project/migrate_plus project.

+process:
+  clear_results: simpletest_clear_results
+  'httpauth/method': simpletest_httpauth_method
+  'httpauth/password': simpletest_httpauth_password
+  'httpauth/username': simpletest_httpauth_username
+  verbose: simpletest_verbose

Wasn't sure what that 'httpauth/method' stuff was about, but was explained that this is the format for arrays of config. Since method, password, and userame are all related, makes sense in the new system to store them under a single httpauth array.

Everything else in here was straight-forward, so committed and pushed to 8.0.x. Thanks! Onto the next variable-to-config migration! :D