add test to reproduce #6462

e2e/__tests__/__snapshots__/find_related_files.test.js.snap

@@ -1,5 +1,29 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`--findRelatedTests flag coverage configuration is applied correctly 1`] = `
+"Test Suites: 1 passed, 1 total
+Tests:       1 passed, 1 total
+Snapshots:   0 total
+Time:        <<REPLACED>>
+Ran all test suites related to files matching /a.js/i."
+`;
+
+exports[`--findRelatedTests flag coverage configuration is applied correctly 2`] = `
+"
+
+PASS __tests__/a.test.js
+✓ a"
+`;
+
+exports[`--findRelatedTests flag coverage configuration is applied correctly 3`] = `
+"----------|----------|----------|----------|----------|-------------------|
+File      |  % Stmts | % Branch |  % Funcs |  % Lines | Uncovered Line #s |
+----------|----------|----------|----------|----------|-------------------|
+All files |      100 |      100 |      100 |      100 |                   |
+ a.js     |      100 |      100 |      100 |      100 |                   |
+----------|----------|----------|----------|----------|-------------------|"
+`;
+
 exports[`--findRelatedTests flag generates coverage report for filename 1`] = `
 "Test Suites: 2 passed, 2 total
 Tests:       2 passed, 2 total

e2e/__tests__/find_related_files.test.js

@@ -90,4 +90,43 @@ describe('--findRelatedTests flag', () => {
     // coverage should be collected only for a.js
     expect(stdout).toMatchSnapshot();
   });
+
+  test('coverage configuration is applied correctly', () => {
+    writeFiles(DIR, {
+      '.watchmanconfig': '',
+      '__tests__/a.test.js': `
+        require('../a');
+        test('a', () => expect(1).toBe(1));
+      `,
+      'a.js': 'module.exports = {}',
+      'b.js': 'module.exports = {}',
+      'package.json': JSON.stringify({
+        jest: {
+          collectCoverage: true,
+          collectCoverageFrom: ['a.js', '!b.js'],
+          testEnvironment: 'node',
+        },
+      }),
+    });
+
+    const {stdout, stderr} = runJest(DIR, [
+      '--findRelatedTests',
+      'a.js',
+      'b.js',
+    ]);
+    const {summary, rest} = extractSummary(stderr);
+    expect(summary).toMatchSnapshot();
+    expect(
+      rest
+        .split('\n')
+        .map(s => s.trim())
+        .sort()
+        .join('\n'),
+    ).toMatchSnapshot();
+    expect(stdout).toMatchSnapshot();
+
+    // Only a.js should be in the report
+    const summaryMsg = 'Ran all test suites related to files matching /a.js/i.';
+    expect(stderr).toMatch(summaryMsg);
+  });
 });