Upgrade @ember/test-waiters to 3.0.0

[stefanpenner]

• @emberjs/test-waiters
• add ember-source 3.24 to ember-try

[scalvert]

Thanks for adding the 3.24 scenario!

[Turbo87]

@stefanpenner this appears to be a breaking change (see rust-lang/crates.io#3840). we are using ember-cli-dependency-lint to avoid having multiple versions of the same addon in the app, and now we have two different major versions of @ember/test-waiters that can't be deduplicated.

[scalvert]

Hey @Turbo87, @ember/test-waiters has a mechanism that dedupes that dependency at build time, which helps ensure you only have one version at any time in your project. Is this manifesting as an actual issue, or are you just anticipating this based on how current ember-cli build dedupes work?

[stefanpenner]

@Turbo87 yes, it is a major version...

More specifically, if you have code that enforces non-duplicated dependencies, that code most be flexible enough to allow periodic divergences. Otherwise you require the ecosystem to lock-step upgrade dependencies at each major version, which isn't possible.

[scalvert]

I think you can accommodate this dependency using:

// config/dependency-lint.js
module.exports = {
  allowedVersions: {
    '@ember/test-waiters': '*'
  }
};

[Turbo87]

@scalvert TIL, thank you. I've opened salsify/ember-cli-dependency-lint#22 to adjust the default list of allowedVersions in that linter.