Abstract encoding strategy for ActiveSupport::MessageVerifier
Merge pull request #17604 from rymohr/message-verifier-case-sensitivity

Abstract encoding strategy for ActiveSupport::MessageVerifier
[ci skip] Add one more example to routing testing, and highlight association
name keywords
Merge branch 'sandipransing-master'
[ci skip] Capybara added to other testing approaches
Merge pull request #17612 from sandipransing/testing-guide

[ci skip] Capybara added to other testing approaches
[ci skip] Improve upon testing tasks guide

Add missing testing tasks and also improve upon tasks descriptions
Merge pull request #17613 from sandipransing/testing-guide

[ci skip] Improve upon testing tasks guide
exec_prepared is GVL friendly, so lets use it.

also increase the version of pg required so that people will get the
GVL friendly version
[ci skip] Remove deprecated testing tasks

This has changed recently and so rake test:all and rake
test:all:db are deprecated.
Merge pull request #17618 from sandipransing/testing-guide

[ci skip] Remove deprecated testing tasks