Fix unit test case by adapting to new Theia behavior #157

All 71 tests pass in 39s

1 files ±0 10 suites ±0 39s ⏱️ +2s
71 tests ±0 71 ✅ ±0 0 💤 ±0 0 ❌ ±0
72 runs ±0 72 ✅ ±0 0 💤 ±0 0 ❌ ±0

Results for commit 44f81a3. ± Comparison against earlier commit f58d931.