kadircet marked an inline comment as done.
kadircet added inline comments.

================
Comment at: clang-tools-extra/clangd/unittests/TweakTesting.h:71
+  // Index to be passed into Tweak::Selection.
+  const SymbolIndex *Index = nullptr;
+
----------------
ilya-biryukov wrote:
> kadircet wrote:
> > ilya-biryukov wrote:
> > > How is this index populated? Each test has to mock it?
> > that's what we usually do with the indexes in the rest of the testing 
> > code.(see code completion tests for an example)
> > 
> > we might decide to have some defaults if there are a substantial amount of 
> > tests making use of the same pattern, wdyt?
> I see two potential problems:
> - Lifetime of the index. Why not make this field a `unique_ptr<SymbolIndex>`? 
> Client code wouldn't need to worry about keeping the stale pointer in the 
> `Index` field when exiting...
> - Ease of discovery for common patterns. Searching for a proper helper does 
> not usually take a lot of time, but I somehow always forget what it is. 
> Should we maybe add a comment mentioning a function that is commonly used for 
> mocking index in tests. WDYT? 
> Lifetime of the index. Why not make this field a unique_ptr<SymbolIndex>? 
> Client code wouldn't need to worry about keeping the stale pointer in the 
> Index field when exiting...

Done.

> Ease of discovery for common patterns. Searching for a proper helper does not 
> usually take a lot of time, but I somehow always forget what it is. Should we 
> maybe add a comment mentioning a function that is commonly used for mocking 
> index in tests. WDYT?

Unfortunately there's no such common helper, every test has different 
requirements while creating those indexes so has a specialized way to go from a 
bunch of "DSL-like input" into a memindex.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69165/new/

https://reviews.llvm.org/D69165



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