Within a test file, use tagged template to setup common fixture.
Add an internalsys field to the parser. This is ats.System instance required by bothts.createWatchCompilerHost andtsserver.server.ProjectService.
Add ahost field to theParserServicesWithTypeInformation, which is required as a param byts.resolveModuleName(inconsistent-type-exports.ts).

Execution flow

Callfixture tag function to setup the common fixture and return asys instance.
createRuleTesterWithTypes will passsys to the parser and return theruleTester instance.
ruleTester will callsys.writeFile to write the code to VFS beforelinter.verify (inrunRuleForItem)

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ntdiary added2 commits

December 17, 2025 15:24

explore vfs test

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Merge branch 'main' into vfs-exploration

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ntdiary added2 commits

December 17, 2025 16:31

case sensitive filename

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typo

4daa0b7

ntdiary changed the title~~chore: explore switching two test file to vfs~~chore: explore switching two test file to VFS

Dec 18, 2025

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ntdiary commentedDec 17, 2025•
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