Intent of chatSessionStore.test|title=ChatSessionStore getIndex returns empty index initially|occurrence=1

All 7 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 7 tests
- workbench/ 7 tests
  - contrib/ 7 tests
    
    chat/ 7 tests
    
    test/ 7 tests
    
    common/ 7 tests
    
    model/ 7 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/contrib/chat/test/common/model/chatSessionStore.test|title=ChatSessionStore clearAllSessions removes all sessions|occurrence=1 Inherited chatSessionStore.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/contrib/chat/test/common/model/chatSessionStore.test|title=ChatSessionStore deleteSession removes session from index|occurrence=1 Inherited chatSessionStore.test|title=ChatSessionStore deleteSession removes session from index|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/contrib/chat/test/common/model/chatSessionStore.test|title=ChatSessionStore getIndex returns empty index initially|occurrence=1 Introduced here
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/contrib/chat/test/common/model/chatSessionStore.test|title=ChatSessionStore setSessionTitle does nothing for non-existent session|occurrence=1 Inherited chatSessionStore.ts ×2
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/contrib/chat/test/common/model/chatSessionStore.test|title=ChatSessionStore setSessionTitle updates existing session title|occurrence=1 Inherited chatSessionStore.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/contrib/chat/test/common/model/chatSessionStore.test|title=ChatSessionStore storeSessions persists custom title|occurrence=1 Inherited chatSessionStore.test|title=ChatSessionStore storeSessions persists custom title|occurrence=1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/workbench/contrib/chat/test/common/model/chatSessionStore.test|title=ChatSessionStore storeSessions persists session to index|occurrence=1 Inherited chatSessionStore.test|title=ChatSessionStore storeSessions persists session to index|occurrence=1