Use rootDir from ProjectConfig

packages/jest-core/src/SearchSource.ts

@@ -268,6 +268,7 @@ export default class SearchSource {
 
   private async _getTestPaths(
     globalConfig: Config.GlobalConfig,
+    projectConfig: Config.ProjectConfig,
     changedFiles?: ChangedFiles,
   ): Promise<SearchResult> {
     if (globalConfig.onlyChanged) {
@@ -297,7 +298,7 @@ export default class SearchSource {
     } else {
       return this.findMatchingTests(
         globalConfig.testPathPatterns.toExecutor({
-          rootDir: globalConfig.rootDir,
+          rootDir: projectConfig.rootDir,
         }),
       );
     }
@@ -327,10 +328,15 @@ export default class SearchSource {
 
   async getTestPaths(
     globalConfig: Config.GlobalConfig,
+    projectConfig: Config.ProjectConfig,
     changedFiles?: ChangedFiles,
     filter?: Filter,
   ): Promise<SearchResult> {
-    const searchResult = await this._getTestPaths(globalConfig, changedFiles);
+    const searchResult = await this._getTestPaths(
+      globalConfig,
+      projectConfig,
+      changedFiles,
+    );
 
     const filterPath = globalConfig.filter;
 

packages/jest-core/src/__tests__/SearchSource.test.ts

@@ -111,12 +111,14 @@ describe('SearchSource', () => {
       filter?: Filter,
     ) => {
       const {searchSource, config} = await initSearchSource(initialOptions);
+      const allConfig = {
+        ...config,
+        ...initialOptions,
+        testPathPatterns: new TestPathPatterns([]),
+      };
       const {tests: paths} = await searchSource.getTestPaths(
-        {
-          ...config,
-          ...initialOptions,
-          testPathPatterns: new TestPathPatterns([]),
-        },
+        allConfig,
+        allConfig,
         null,
         filter,
       );

packages/jest-core/src/runJest.ts

@@ -38,13 +38,19 @@ import type {Filter, TestRunData} from './types';
 
 const getTestPaths = async (
   globalConfig: Config.GlobalConfig,
+  projectConfig: Config.ProjectConfig,
   source: SearchSource,
   outputStream: WriteStream,
   changedFiles: ChangedFiles | undefined,
   jestHooks: JestHookEmitter,
   filter?: Filter,
 ) => {
-  const data = await source.getTestPaths(globalConfig, changedFiles, filter);
+  const data = await source.getTestPaths(
+    globalConfig,
+    projectConfig,
+    changedFiles,
+    filter,
+  );
 
   if (data.tests.length === 0 && globalConfig.onlyChanged && data.noSCM) {
     new CustomConsole(outputStream, outputStream).log(
@@ -188,6 +194,7 @@ export default async function runJest({
       const searchSource = searchSources[index];
       const matches = await getTestPaths(
         globalConfig,
+        context.config,
         searchSource,
         outputStream,
         changedFilesPromise && (await changedFilesPromise),

packages/jest-core/src/watch.ts

@@ -229,13 +229,14 @@ export default async function watch(
 
   const emitFileChange = () => {
     if (hooks.isUsed('onFileChange')) {
-      const testPathPatternsExecutor = new TestPathPatterns([]).toExecutor({
-        rootDir: globalConfig.rootDir,
-      });
       const projects = searchSources.map(({context, searchSource}) => ({
         config: context.config,
         testPaths: searchSource
-          .findMatchingTests(testPathPatternsExecutor)
+          .findMatchingTests(
+            new TestPathPatterns([]).toExecutor({
+              rootDir: context.config.rootDir,
+            }),
+          )
           .tests.map(t => t.path),
       }));
       hooks.getEmitter().onFileChange({projects});