Intent of pfs.ts ×4

All 14 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 14 tests
- base/ 2 tests
  - test/ 2 tests
    
    node/ 2 tests
    
    pfs/ 2 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/node/pfs/pfs.test|title=PFS copy, rename and delete|occurrence=1 Inherited pfs.test|title=PFS rename without retry|occurrence=1, pfs.test|title=PFS copy, rename and delete|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/node/pfs/pfs.test|title=PFS rename without retry|occurrence=1 Inherited pfs.test|title=PFS rename without retry|occurrence=1, pfs.test|title=PFS copy, rename and delete|occurrence=1
- platform/ 12 tests
  - agentHost/ 6 tests
    
    test/ 6 tests
    
    node/ 6 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/agentSdkDownloader.test|title=AgentSdkDownloader loadSdkRoot: cache dir includes sdkTarget so Universal launches stay separate|occurrence=1 Inherited diskFileSystemProvider.ts ×11
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/agentSdkDownloader.test|title=AgentSdkDownloader loadSdkRoot: cache hit returns immediately without re-downloading|occurrence=1 Inherited agentSdkDownloader.test|title=AgentSdkDownloader loadSdkRoot: cache hit returns immediately without re-downloading|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/agentSdkDownloader.test|title=AgentSdkDownloader loadSdkRoot: cache miss → downloads, extracts, writes sentinel|occurrence=1 Inherited diskFileSystemProvider.ts ×11
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/agentSdkDownloader.test|title=AgentSdkDownloader loadSdkRoot: concurrent calls in same process share one download|occurrence=1 Inherited diskFileSystemProvider.ts ×11
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/agentSdkDownloader.test|title=AgentSdkDownloader loadSdkRoot: reports monotonic download progress ending at totalBytes|occurrence=1 Inherited diskFileSystemProvider.ts ×11
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/agentHost/test/node/agentSdkDownloader.test|title=AgentSdkDownloader loadSdkRoot: substitutes {sdkTarget} into urlTemplate|occurrence=1 Inherited diskFileSystemProvider.ts ×11
  - state/ 6 tests
    
    test/ 6 tests
    
    node/ 6 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/state/test/node/state.test|title=StateService Basics (delayed strategy)|occurrence=1 Inherited stateService.ts ×2
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/state/test/node/state.test|title=StateService Basics (immediate strategy)|occurrence=1 Inherited stateService.ts ×2
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/state/test/node/state.test|title=StateService Multiple ops (Immediate Strategy)|occurrence=1 Inherited stateService.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/state/test/node/state.test|title=StateService Multiple ops are buffered and applied|occurrence=1 Inherited stateService.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/state/test/node/state.test|title=StateService Used after close|occurrence=1 Inherited stateService.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/platform/state/test/node/state.test|title=StateService Used before init|occurrence=1 Inherited stateService.ts ×2