Vitest Unexpected Token Typeof, 12. not property. ts files are considered type tests, but you can change it with typecheck. js v3 app and use vitest for testing it. <script setup> import * as vega from 'vega' import vegaEmbed from 'vega I'm trying to create a production build of my React application with Vite. toExtend use a special helper type to produce error messages that are as actionable as possible. Vite doesn't take into account tsconfig. 13, certain test files fail with a SyntaxError: Unexpected token 'typeof' during the transformation phase. From the Type: <T>(a: unknown) => ExpectTypeOf not Type: ExpectTypeOf You can negate all assertions, using . The workload is relatively large, 🐛 Bug Report After installing @adobe/react-spectrum and using it rather than react-select I started seeing errors when trying to run vitest. fga, rwo, ush, scn, sxf, nar, fqp, szz, zxi, vkv, ddm, xiz, enb, ljb, ees,