chore: move some tests to be contextual (trpc#5420)

CONTRIBUTING.md

@@ -48,7 +48,7 @@ pnpm test-watch react
 pnpm test-watch 3085
 ```
 
-Testing is currently coalesced in [./packages/tests](./packages/tests); we import the different libs from here, this makes it easier for us to do integration testing + getting test coverage on the whole codebase.
+Test are mainly coalesced in [./packages/tests](./packages/tests); we import the different libs from here, this makes it easier for us to do integration testing.
 
 ### Linting
 

packages/tests/server/initTRPC.test.ts → packages/server/src/unstable-core-do-not-import/initTRPC.test.ts

@@ -1,8 +1,8 @@
-import { initTRPC } from '@trpc/server';
+import { initTRPC } from './initTRPC';
 import type {
   CombinedDataTransformer,
   DataTransformerOptions,
-} from '@trpc/server/unstable-core-do-not-import';
+} from './transformer';
 
 test('default transformer', () => {
   const t = initTRPC

packages/tests/server/mergeRouters.test.ts → packages/server/src/unstable-core-do-not-import/router.mergeRouters.test.ts

@@ -1,6 +1,6 @@
-import type { TRPCRouterRecord } from '@trpc/server';
-import { initTRPC } from '@trpc/server';
-import type { inferRootTypes } from '@trpc/server/unstable-core-do-not-import';
+import type { inferRootTypes } from '.';
+import type { TRPCRouterRecord } from '..';
+import { initTRPC } from '..';
 
 test('mergeRouters', async () => {
   const t = initTRPC.create();

packages/tests/server/router.test.ts → packages/server/src/unstable-core-do-not-import/router.test.ts

@@ -1,4 +1,4 @@
-import { initTRPC } from '@trpc/server';
+import { initTRPC } from '..';
 
 const t = initTRPC.create();