[Android] Add fake mode for compose state for testing

[jonnyandrew]

Changes

• Add fake mode for the compose state for testing and preview purposes
• Relax visibility of the compose state constructor

Context

As this library inherently requires the underlying Rust model to function properly, it makes testing in a JVM environment difficult. A simple fake implementation allows unit tests to observe some simple state changes after calling functions on the state holder.

• See [Rich text editor] Integrate rich text editor library element-hq/element-x-android#1172 (comment)

[codecov-commenter]

Codecov Report

Patch coverage: 96.15% and project coverage change: -0.05% ⚠️

Comparison is base (aa38f74) 88.27% compared to head (5a1daff) 88.23%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #796      +/-   ##
============================================
- Coverage     88.27%   88.23%   -0.05%     
- Complexity      354      370      +16     
============================================
  Files           153      123      -30     
  Lines         17815    16340    -1475     
  Branches        857      258     -599     
============================================
- Hits          15727    14417    -1310     
+ Misses         1855     1716     -139     
+ Partials        233      207      -26     

Flag	Coverage Δ
uitests	68.01% <9.61%> (-6.72%)	⬇️
uitests-android	68.01% <9.61%> (-1.57%)	⬇️
uitests-ios	?
unittests	88.18% <96.07%> (+1.17%)	⬆️
unittests-android	52.01% <96.07%> (+3.77%)	⬆️
unittests-ios	?
unittests-rust	89.95% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
...ent/android/wysiwyg/compose/RichTextEditorState.kt	66.66% <77.77%> (+7.29%)	⬆️
.../element/android/wysiwyg/compose/RichTextEditor.kt	63.09% <100.00%> (+2.38%)	⬆️
...oid/wysiwyg/compose/internal/FakeViewConnection.kt	100.00% <100.00%> (ø)

... and 31 files with indirect coverage changes

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
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[langleyd]

Nice, LGTM