feat(testing): adds harness for dialog

[Frequency21]

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Refactoring
• Build or CI related changes
• Tests related changes
• Documentation content changes

What is the current behaviour?

Partially implements #476

What is the new behaviour?

[lumberjack-bot]

Pull request was closed ✔️

All saved screenshots (for current PR) were deleted 🗑️

[bundlemon]

BundleMon

Unchanged files (6)

Status	Path	Size	Limits
✅	demo/browser/main.(hash).js	338.96KB	+10%
✅	demo/browser/vendor.(hash).js	201.03KB	+10%
✅	demo/browser/runtime.(hash).js	38.71KB	+10%
✅	demo/browser/polyfills.(hash).js	18.28KB	+10%
✅	demo/browser/scripts.(hash).js	17.9KB	+10%
✅	demo/browser/styles.(hash).css	1.67KB	+10%

Total files change +3B 0%

Unchanged groups (1)

Status	Path	Size	Limits
✅	demo/browser/*..js	2.23MB	-

Final result: ✅

View report in BundleMon website ➡️

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Current branch size history | Target branch size history

[codecov]

Codecov Report

Merging #5785 (a004ba9) into main (32b660a) will not change coverage.
Report is 1 commits behind head on main.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #5785   +/-   ##
=======================================
  Coverage   72.33%   72.33%           
=======================================
  Files        1455     1455           
  Lines       15827    15827           
  Branches     2224     2224           
=======================================
  Hits        11449    11449           
  Misses       4017     4017           
  Partials      361      361           

Flag	Coverage Δ
addon-charts	71.10% <ø> (ø)
addon-doc	60.53% <ø> (ø)
addon-mobile	61.25% <ø> (ø)
addon-table	60.63% <ø> (ø)
addon-tablebars	90.90% <ø> (ø)
cdk	78.71% <ø> (ø)
core	77.96% <ø> (ø)
kit	70.88% <ø> (ø)
summary	72.33% <ø> (ø)

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