check file existance

packages/playwright/src/common/configLoader.ts

@@ -258,6 +258,8 @@ function validateConfig(file: string, config: Config) {
   if ('tsconfig' in config && config.tsconfig !== undefined) {
     if (typeof config.tsconfig !== 'string')
       throw errorWithFile(file, `config.tsconfig must be a string`);
+    if (!fs.existsSync(path.resolve(file, '..', config.tsconfig)))
+      throw errorWithFile(file, `config.tsconfig does not exist`);
   }
 }
 

tests/playwright-test/config.spec.ts

@@ -698,3 +698,35 @@ test('should merge ct configs', async ({ runInlineTest }) => {
   });
   expect(result.exitCode).toBe(0);
 });
+
+test('should throw on invalid config.tsconfig option', async ({ runInlineTest }) => {
+  const result = await runInlineTest({
+    'playwright.config.ts': `
+      export default {
+        tsconfig: true,
+      };
+    `,
+  });
+
+  expect(result.exitCode).toBe(1);
+  expect(result.output).toContain(`config.tsconfig must be a string`);
+});
+
+test('should throw on nonexistant config.tsconfig', async ({ runInlineTest }) => {
+  const result = await runInlineTest({
+    'playwright.config.ts': `
+      export default {
+        tsconfig: './does-not-exist.json',
+      };
+    `,
+    'tests/a.test.ts': `
+      import { test, expect } from '@playwright/test';
+      test('test', ({}) => {
+        expect(1).toBe(1);
+      });
+    `,
+  });
+
+  expect(result.exitCode).toBe(1);
+  expect(result.output).toContain(`config.tsconfig does not exist`);
+});

tests/playwright-test/resolver.spec.ts

@@ -734,19 +734,6 @@ test('should respect config.tsconfig option', async ({ runInlineTest }) => {
   expect(result.output).not.toContain(`Could not`);
 });
 
-test('should throw on invalid config.tsconfig option', async ({ runInlineTest }) => {
-  const result = await runInlineTest({
-    'playwright.config.ts': `
-      export default {
-        tsconfig: true,
-      };
-    `,
-  });
-
-  expect(result.exitCode).toBe(1);
-  expect(result.output).toContain(`config.tsconfig must be a string`);
-});
-
 test.describe('directory imports', () => {
   test('should resolve index.js without path mapping in CJS', async ({ runInlineTest, runTSC }) => {
     const files = {