Bug 193686 – Web Inspector: Audit: add supports key to test/group for compatibility

• Component: Web Inspector
• Status: RESOLVED FIXED

[Devin Rousso]

If the test's/group's "supports" key is less than the minimum of the frontend and backend versions, the test is too old to be run and should be disabled for that inspection target.
 - if backend < supports < frontend, we can visualize results of the test, but some functionality within the test itself may not be available (e.g. the injected `WebInspectorAudit` object)
 - if frontend < supports < backend, we have all the test functionality, but may not be able to parse/visualize all of it
 - if backend <=> frontend < supports, we are fully supported
 - if supports < backend <=> frontend, we are completely out of date

[Radar WebKit Bug Importer]

<rdar://problem/47460872>

[Devin Rousso]

Created attachment 359932 [details]
Patch

[Devin Rousso]

Created attachment 359933 [details]
[Image] After Patch is applied

This "fakely" makes one of the default audits have `supports: 0;` for the sake of testing/demonstration.  The default audit is not actually being changed in this patch.

[Devin Rousso]

Comment on attachment 359932 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=359932&action=review

> Source/WebInspectorUI/UserInterface/Models/AuditTestBase.js:49
> +            if (this._supports < WI.AuditTestBase.Version)
> +                this._supported = false;
> +            else if (InspectorBackend.domains.Audit && this._supports < InspectorBackend.domains.Audit.VERSION)
> +                this._supported = false;

I just realized, I have these written backwards.  It should be `this._supports > ...`.

[Devin Rousso]

Created attachment 359965 [details]
Patch

[Joseph Pecoraro]

Comment on attachment 359965 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=359965&action=review

r=me

> Source/WebInspectorUI/UserInterface/Models/AuditTestBase.js:52
> +        if (!this.supported)

Nit: _supported when used inside this class since the getter is simple.

> Source/WebInspectorUI/UserInterface/Models/AuditTestBase.js:89
> +        if (!this.supported)

Nit: _supported when used inside this class since the getter is simple.

[Devin Rousso]

Comment on attachment 359965 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=359965&action=review

>> Source/WebInspectorUI/UserInterface/Models/AuditTestBase.js:52
>> +        if (!this.supported)
> 
> Nit: _supported when used inside this class since the getter is simple.

Considering that it's overridden by a subclass (`WI.AuditTestGroup`), I thought it best to use the non-member version.  This is somewhat similar to what I did with `this.disabled`.

[WebKit Commit Bot]

Comment on attachment 359965 [details]
Patch

Clearing flags on attachment: 359965

Committed r240469: <https://trac.webkit.org/changeset/240469>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.