fix(types): ensure Chai declaration merge works with TS-Go (#8188)

LukeAbby · web-flow · commit 5261df0b98ac · 2025-06-20T16:06:41.000+02:00
diff --git a/packages/vitest/src/types/global.ts b/packages/vitest/src/types/global.ts
@@ -7,11 +7,17 @@ import type { UserConsoleLog } from './general'
 declare global {
   // eslint-disable-next-line ts/no-namespace
   namespace Chai {
+    interface ContainSubset {
+      (expected: any): Assertion
+    }
+
     interface Assertion {
-      containSubset: (expected: any) => Assertion
+      containSubset: ContainSubset
     }
+
     interface Assert {
-      containSubset: (val: any, exp: any, msg?: string) => void
+      // eslint-disable-next-line ts/method-signature-style
+      containSubset(val: any, exp: any, msg?: string): void
     }
   }
 }

Original file line number	Diff line number	Diff line change
`@@ -7,11 +7,17 @@ import type { UserConsoleLog } from './general'`
`7`	`7`	`declare global {`
`8`	`8`	`// eslint-disable-next-line ts/no-namespace`
`9`	`9`	`namespace Chai {`
	`10`	`+ interface ContainSubset {`
	`11`	`+ (expected: any): Assertion`
	`12`	`+ }`
	`13`	`+`
`10`	`14`	`interface Assertion {`
`11`		`- containSubset: (expected: any) => Assertion`
	`15`	`+ containSubset: ContainSubset`
`12`	`16`	`}`
	`17`	`+`
`13`	`18`	`interface Assert {`
`14`		`- containSubset: (val: any, exp: any, msg?: string) => void`
	`19`	`+ // eslint-disable-next-line ts/method-signature-style`
	`20`	`+ containSubset(val: any, exp: any, msg?: string): void`
`15`	`21`	`}`
`16`	`22`	`}`
`17`	`23`	`}`