ci: Remove broken --single-test flag from matrix runner

[Copilot]

The --single-test flag in matrix_run_android_tests.sh claimed to "override package filter" but only appended -e class, not removing existing -e package/-e notPackage filters. Android instrumentation applies filters conjunctively, so tests outside the shard's package scope would match nothing.

Changes

• Removed --single-test functionality from matrix runner

  • Removed flag from argument parsing and help text
  • Removed filter logic from build_instrument_command()
  • Removed output display from main configuration print

• Updated test sharding documentation

  • Removed --single-test from parameter table
  • Removed "Running a Single Test" examples section

Rationale

Running a single test defeats the purpose of sharded execution. Users needing single-test execution can use run_android_tests.sh (non-matrix runner), which retains this functionality.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Bug: Matrix Runner Script Single-test filter doesn't override package filter as documented</issue_title>
<issue_description>### Bug: Single-test filter doesn't override package filter as documented

The comment states --single-test "overrides package filter" but the implementation only appends -e class to the command without removing the existing -e package or -e notPackage filter. In Android instrumentation, both filters are applied conjunctively (AND), so a test must match both conditions. If someone specifies --single-test for a test outside the shard's package scope (e.g., running a non-UI test while on a UI shard), no tests will execute and it will appear as a successful run with zero tests. The code behavior contradicts the documented intent.

 

Originally posted by @cursor[bot] in #105 (comment)
</issue_description>

Comments on the Issue (you are @copilot in this section)

@williscool Lol. I can't imagine why you would even want to try to run a single test in Matrix mode, but it is technically broken so we should probably remove this

• Fixes Bug: Matrix Runner Script Single-test filter doesn't override package filter as documented #106

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Note

Removes the misleading --single-test option from the matrix test runner and aligns docs accordingly.

• Strips --single-test parsing, help text, and filter handling from scripts/matrix_run_android_tests.sh (no more -e class injection)
• Cleans configuration output related to single-test mode
• Updates docs/testing/test_sharding.md: removes --single-test from the parameters table and deletes the single-test usage section

^{Written by Cursor Bugbot for commit e6703eb. This will update automatically on new commits. Configure here.}

[github-actions]

Build artifacts for PR #181 (commit 7eac3c4) are available:

• Debug APKs (arm64-v8a, x86_64)
• Release APKs (arm64-v8a, x86_64)
• AAB

You can download these artifacts from the "Artifacts" section of the workflow run.

[github-actions]

Code Coverage Report

Overall Project	33.95%	🍏

There is no coverage information present for the Files changed

[github-actions]

📊 Code Coverage Summary

Coverage Type	Coverage
Overall	24.52
Changed Files	100

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[github-actions]

📊 Code Coverage Summary

Coverage Type	Coverage
Overall	33.95
Changed Files	100

View detailed coverage report