Fix test fail associated with bad merge.

[alexmillane]

Summary

FIx an import error on test startup

Detailed description

• Causing tests to fail on main
• Came from a bad merge between Clarify persistent SimulationApp run_simulation_app_function() #986 and Add interactive environment runner #973

[greptile-apps]

Greptile Summary

Updates the environment runner mouse-interaction test to use the available persistent SimulationApp helper instead of the invalid subprocess helper import.

Confidence Score: 5/5

The PR appears safe to merge.

The replacement helper accepts the test callable and headless argument, supplies the expected SimulationApp parameter, and propagates the callable's boolean result for the existing assertion.

Important Files Changed

Filename	Overview
isaaclab_arena/tests/test_environment_runner.py	Replaces the broken helper import and updates its sole invocation with a signature-compatible persistent SimulationApp helper.

_{Reviews (1): Last reviewed commit: "Fix test fail associated with bad merge." | Re-trigger Greptile}

[arena-review-bot]

🤖 Isaac Lab-Arena Review Bot

Summary

This PR fixes a broken import in test_environment_runner.py left behind by a bad merge: run_simulation_app_function was imported from isaaclab_arena.tests.utils.subprocess, but that module only defines run_subprocess — so test collection failed. The fix swaps to run_function_with_persistent_simulation_app from tests.utils.persistent_simulation_app, whose signature (function, headless=True) matches the updated call site. Verified the old symbol is absent from subprocess.py and the new one exists and lines up.

The inner/outer simulation-test pattern is intact (deferred carb/omni imports in the inner function), and this in-process persistent-app test correctly stays marker-free for Phase 1. No further concerns.

Verdict

Ship it

[cvolkcvolk]

Thanks!