Add tests for the unified diff compare editor open path#2807
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UnifiedDiffOpenTest pins the behavior of opening a compare editor with the unified diff preference enabled: a workspace-file input with shared document adapters opens a plain text editor with unified diff annotations instead of the compare editor, prepareInput runs exactly once, and an input without shared document adapters falls back to the classic compare editor. One test documents that the unified path currently runs prepareInput on the UI thread; its assertion flips when the preparation moves to a background job. Contributes to eclipse-platform#2795
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Test Results 36 files - 18 36 suites - 18 42m 36s ⏱️ - 16m 29s Results for commit 0ce2899. ± Comparison against base commit fe3597d. This pull request skips 23 tests. |
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The unified diff display had no functional test coverage. UnifiedDiffOpenTest pins the behavior of opening a compare editor with the unified diff preference enabled: a workspace-file input with shared document adapters opens a plain text editor with unified diff annotations instead of the classic compare editor, prepareInput runs exactly once, and an input without shared document adapters falls back to the classic compare editor. One test documents that the unified path currently runs prepareInput synchronously on the UI thread; its assertion is written to flip when a follow-up change moves the preparation onto the background-job pattern the classic editor already uses. This lands ahead of that threading change so the refactoring PR is reviewable against existing, passing pins.
Contributes to #2795