test: fix snapshots

e2e/__tests__/__snapshots__/coverageProviderV8.test.ts.snap

@@ -61,3 +61,12 @@ All files     |   59.38 |       50 |   33.33 |   59.38 |
  uncovered.js |       0 |        0 |       0 |       0 | 1-8               
 --------------|---------|----------|---------|---------|-------------------
 `;
+
+exports[`prints coverage with empty sourcemaps 1`] = `
+----------|---------|----------|---------|---------|-------------------
+File      | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s 
+----------|---------|----------|---------|---------|-------------------
+All files |     100 |      100 |     100 |     100 |                   
+ types.ts |     100 |      100 |     100 |     100 |                   
+----------|---------|----------|---------|---------|-------------------
+`;

e2e/__tests__/coverageProviderV8.test.ts

@@ -11,6 +11,19 @@ import runJest from '../runJest';
 
 const DIR = path.resolve(__dirname, '../coverage-provider-v8');
 
+test('prints coverage with empty sourcemaps', () => {
+  const sourcemapDir = path.join(DIR, 'empty-sourcemap');
+
+  const {stdout, exitCode} = runJest(
+    sourcemapDir,
+    ['--coverage', '--coverage-provider', 'v8'],
+    {stripAnsi: true},
+  );
+
+  expect(exitCode).toBe(0);
+  expect(wrap(stdout)).toMatchSnapshot();
+});
+
 test('prints correct coverage report, if a CJS module is put under test without transformation', () => {
   const sourcemapDir = path.join(DIR, 'cjs-native-without-sourcemap');