From 6f5c7b43588d2e8b95d716a21c6d2f4682042c1b Mon Sep 17 00:00:00 2001
From: Pavel Feldman <pavel.feldman@gmail.com>
Date: Tue, 29 Oct 2024 18:29:07 -0700
Subject: [PATCH] feat(html): render prev/next test buttons (#33356)

---
 packages/html-reporter/src/headerView.tsx     |  4 +-
 packages/html-reporter/src/index.tsx          |  5 +-
 packages/html-reporter/src/links.tsx          | 23 ++++--
 packages/html-reporter/src/reportView.tsx     | 73 +++++++++++++------
 packages/html-reporter/src/testCaseView.css   |  2 +-
 .../html-reporter/src/testCaseView.spec.tsx   | 36 +++++++--
 packages/html-reporter/src/testCaseView.tsx   | 15 +++-
 packages/html-reporter/src/testFileView.tsx   | 23 +++---
 packages/html-reporter/src/testFilesView.tsx  | 54 +++++++-------
 9 files changed, 158 insertions(+), 77 deletions(-)

diff --git a/packages/html-reporter/src/headerView.tsx b/packages/html-reporter/src/headerView.tsx
index 925bc64721..01f92f1ecb 100644
--- a/packages/html-reporter/src/headerView.tsx
+++ b/packages/html-reporter/src/headerView.tsx
@@ -20,7 +20,7 @@ import './colors.css';
 import './common.css';
 import './headerView.css';
 import * as icons from './icons';
-import { Link, navigate } from './links';
+import { Link, navigate, SearchParamsContext } from './links';
 import { statusIcon } from './statusIcon';
 import { filterWithToken } from './filter';
 
@@ -65,7 +65,7 @@ export const HeaderView: React.FC<React.PropsWithChildren<{
 const StatsNavView: React.FC<{
   stats: Stats
 }> = ({ stats }) => {
-  const searchParams = new URLSearchParams(window.location.hash.slice(1));
+  const searchParams = React.useContext(SearchParamsContext);
   const q = searchParams.get('q')?.toString() || '';
   const tokens = q.split(' ');
   return <nav>
diff --git a/packages/html-reporter/src/index.tsx b/packages/html-reporter/src/index.tsx
index ffbb825dd9..43b4f5bb9e 100644
--- a/packages/html-reporter/src/index.tsx
+++ b/packages/html-reporter/src/index.tsx
@@ -27,6 +27,7 @@ import { ReportView } from './reportView';
 const zipjs = zipImport as typeof zip;
 
 import logo from '@web/assets/playwright-logo.svg';
+import { SearchParamsProvider } from './links';
 const link = document.createElement('link');
 link.rel = 'shortcut icon';
 link.href = logo;
@@ -40,7 +41,9 @@ const ReportLoader: React.FC = () => {
     const zipReport = new ZipReport();
     zipReport.load().then(() => setReport(zipReport));
   }, [report]);
-  return <ReportView report={report}></ReportView>;
+  return <SearchParamsProvider>
+    <ReportView report={report} />
+  </SearchParamsProvider>;
 };
 
 window.onload = () => {
diff --git a/packages/html-reporter/src/links.tsx b/packages/html-reporter/src/links.tsx
index 8c1dcc85dc..4b48090e0a 100644
--- a/packages/html-reporter/src/links.tsx
+++ b/packages/html-reporter/src/links.tsx
@@ -33,13 +33,8 @@ export const Route: React.FunctionComponent<{
   predicate: (params: URLSearchParams) => boolean,
   children: any
 }> = ({ predicate, children }) => {
-  const [matches, setMatches] = React.useState(predicate(new URLSearchParams(window.location.hash.slice(1))));
-  React.useEffect(() => {
-    const listener = () => setMatches(predicate(new URLSearchParams(window.location.hash.slice(1))));
-    window.addEventListener('popstate', listener);
-    return () => window.removeEventListener('popstate', listener);
-  }, [predicate]);
-  return matches ? children : null;
+  const searchParams = React.useContext(SearchParamsContext);
+  return predicate(searchParams) ? children : null;
 };
 
 export const Link: React.FunctionComponent<{
@@ -90,6 +85,20 @@ export const AttachmentLink: React.FunctionComponent<{
   } : undefined} depth={0} style={{ lineHeight: '32px' }}></TreeItem>;
 };
 
+export const SearchParamsContext = React.createContext<URLSearchParams>(new URLSearchParams(window.location.hash.slice(1)));
+
+export const SearchParamsProvider: React.FunctionComponent<React.PropsWithChildren> = ({ children }) => {
+  const [searchParams, setSearchParams] = React.useState<URLSearchParams>(new URLSearchParams(window.location.hash.slice(1)));
+
+  React.useEffect(() => {
+    const listener = () => setSearchParams(new URLSearchParams(window.location.hash.slice(1)));
+    window.addEventListener('popstate', listener);
+    return () => window.removeEventListener('popstate', listener);
+  }, []);
+
+  return <SearchParamsContext.Provider value={searchParams}>{children}</SearchParamsContext.Provider>;
+};
+
 function downloadFileNameForAttachment(attachment: TestAttachment): string {
   if (attachment.name.includes('.') || !attachment.path)
     return attachment.name;
diff --git a/packages/html-reporter/src/reportView.tsx b/packages/html-reporter/src/reportView.tsx
index 796c03d6a1..e8a5c3b250 100644
--- a/packages/html-reporter/src/reportView.tsx
+++ b/packages/html-reporter/src/reportView.tsx
@@ -14,19 +14,19 @@
   limitations under the License.
 */
 
-import type { FilteredStats, TestCase, TestFile, TestFileSummary } from './types';
+import type { FilteredStats, TestCase, TestCaseSummary, TestFile, TestFileSummary } from './types';
 import * as React from 'react';
 import './colors.css';
 import './common.css';
 import { Filter } from './filter';
 import { HeaderView } from './headerView';
-import { Route } from './links';
+import { Route, SearchParamsContext } from './links';
 import type { LoadedReport } from './loadedReport';
 import './reportView.css';
 import type { Metainfo } from './metadataView';
 import { MetadataView } from './metadataView';
 import { TestCaseView } from './testCaseView';
-import { TestFilesView } from './testFilesView';
+import { TestFilesHeader, TestFilesView } from './testFilesView';
 import './theme.css';
 
 declare global {
@@ -39,32 +39,55 @@ declare global {
 const testFilesRoutePredicate = (params: URLSearchParams) => !params.has('testId');
 const testCaseRoutePredicate = (params: URLSearchParams) => params.has('testId');
 
+type TestModelSummary = {
+  files: TestFileSummary[];
+  tests: TestCaseSummary[];
+};
+
 export const ReportView: React.FC<{
   report: LoadedReport | undefined,
 }> = ({ report }) => {
-  const searchParams = new URLSearchParams(window.location.hash.slice(1));
+  const searchParams = React.useContext(SearchParamsContext);
   const [expandedFiles, setExpandedFiles] = React.useState<Map<string, boolean>>(new Map());
   const [filterText, setFilterText] = React.useState(searchParams.get('q') || '');
 
+  const testIdToFileIdMap = React.useMemo(() => {
+    const map = new Map<string, string>();
+    for (const file of report?.json().files || []) {
+      for (const test of file.tests)
+        map.set(test.testId, file.fileId);
+    }
+    return map;
+  }, [report]);
+
   const filter = React.useMemo(() => Filter.parse(filterText), [filterText]);
-  const filteredStats = React.useMemo(() => computeStats(report?.json().files || [], filter), [report, filter]);
+  const filteredStats = React.useMemo(() => filter.empty() ? undefined : computeStats(report?.json().files || [], filter), [report, filter]);
+  const filteredTests = React.useMemo(() => {
+    const result: TestModelSummary = { files: [], tests: [] };
+    for (const file of report?.json().files || []) {
+      const tests = file.tests.filter(t => filter.matches(t));
+      if (tests.length)
+        result.files.push({ ...file, tests });
+      result.tests.push(...tests);
+    }
+    return result;
+  }, [report, filter]);
 
   return <div className='htmlreport vbox px-4 pb-4'>
     <main>
       {report?.json() && <HeaderView stats={report.json().stats} filterText={filterText} setFilterText={setFilterText}></HeaderView>}
       {report?.json().metadata && <MetadataView {...report?.json().metadata as Metainfo} />}
       <Route predicate={testFilesRoutePredicate}>
+        <TestFilesHeader report={report?.json()} filteredStats={filteredStats} />
         <TestFilesView
-          report={report?.json()}
-          filter={filter}
+          tests={filteredTests.files}
           expandedFiles={expandedFiles}
           setExpandedFiles={setExpandedFiles}
           projectNames={report?.json().projectNames || []}
-          filteredStats={filteredStats}
         />
       </Route>
       <Route predicate={testCaseRoutePredicate}>
-        {!!report && <TestCaseViewLoader report={report}></TestCaseViewLoader>}
+        {!!report && <TestCaseViewLoader report={report} tests={filteredTests.tests} testIdToFileIdMap={testIdToFileIdMap} />}
       </Route>
     </main>
   </div>;
@@ -72,21 +95,21 @@ export const ReportView: React.FC<{
 
 const TestCaseViewLoader: React.FC<{
   report: LoadedReport,
-}> = ({ report }) => {
-  const searchParams = new URLSearchParams(window.location.hash.slice(1));
+  tests: TestCaseSummary[],
+  testIdToFileIdMap: Map<string, string>,
+}> = ({ report, testIdToFileIdMap, tests }) => {
+  const searchParams = React.useContext(SearchParamsContext);
   const [test, setTest] = React.useState<TestCase | undefined>();
   const testId = searchParams.get('testId');
   const anchor = (searchParams.get('anchor') || '') as 'video' | 'diff' | '';
   const run = +(searchParams.get('run') || '0');
 
-  const testIdToFileIdMap = React.useMemo(() => {
-    const map = new Map<string, string>();
-    for (const file of report.json().files) {
-      for (const test of file.tests)
-        map.set(test.testId, file.fileId);
-    }
-    return map;
-  }, [report]);
+  const { prev, next } = React.useMemo(() => {
+    const index = tests.findIndex(t => t.testId === testId);
+    const prev = index > 0 ? tests[index - 1] : undefined;
+    const next = index < tests.length - 1 ? tests[index + 1] : undefined;
+    return { prev, next };
+  }, [testId, tests]);
 
   React.useEffect(() => {
     (async () => {
@@ -104,7 +127,15 @@ const TestCaseViewLoader: React.FC<{
       }
     })();
   }, [test, report, testId, testIdToFileIdMap]);
-  return <TestCaseView projectNames={report.json().projectNames} test={test} anchor={anchor} run={run}></TestCaseView>;
+
+  return <TestCaseView
+    projectNames={report.json().projectNames}
+    next={next}
+    prev={prev}
+    test={test}
+    anchor={anchor}
+    run={run}
+  />;
 };
 
 function computeStats(files: TestFileSummary[], filter: Filter): FilteredStats {
@@ -119,4 +150,4 @@ function computeStats(files: TestFileSummary[], filter: Filter): FilteredStats {
       stats.duration += test.duration;
   }
   return stats;
-}
\ No newline at end of file
+}
diff --git a/packages/html-reporter/src/testCaseView.css b/packages/html-reporter/src/testCaseView.css
index 56be1d9620..ff20288cbf 100644
--- a/packages/html-reporter/src/testCaseView.css
+++ b/packages/html-reporter/src/testCaseView.css
@@ -16,7 +16,7 @@
 
 .test-case-column {
   border-radius: 6px;
-  margin: 24px 0;
+  margin: 12px 0 24px 0;
 }
 
 .test-case-column .tab-element.selected {
diff --git a/packages/html-reporter/src/testCaseView.spec.tsx b/packages/html-reporter/src/testCaseView.spec.tsx
index 7c9c99eeb3..5a97f7bf23 100644
--- a/packages/html-reporter/src/testCaseView.spec.tsx
+++ b/packages/html-reporter/src/testCaseView.spec.tsx
@@ -16,7 +16,7 @@
 
 import { test, expect } from '@playwright/experimental-ct-react';
 import { TestCaseView } from './testCaseView';
-import type { TestCase, TestResult } from './types';
+import type { TestCase, TestCaseSummary, TestResult } from './types';
 
 test.use({ viewport: { width: 800, height: 600 } });
 
@@ -63,7 +63,7 @@ const testCase: TestCase = {
 };
 
 test('should render test case', async ({ mount }) => {
-  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={testCase} run={0} anchor=''></TestCaseView>);
+  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={testCase} prev={undefined} next={undefined} run={0} anchor=''></TestCaseView>);
   await expect(component.getByText('Annotation text', { exact: false }).first()).toBeVisible();
   await expect(component.getByText('Hidden annotation')).toBeHidden();
   await component.getByText('Annotations').click();
@@ -79,7 +79,7 @@ test('should render test case', async ({ mount }) => {
 test('should render copy buttons for annotations', async ({ mount, page, context }) => {
   await context.grantPermissions(['clipboard-read', 'clipboard-write']);
 
-  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={testCase} run={0} anchor=''></TestCaseView>);
+  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={testCase} prev={undefined} next={undefined} run={0} anchor=''></TestCaseView>);
   await expect(component.getByText('Annotation text', { exact: false }).first()).toBeVisible();
   await component.getByText('Annotation text', { exact: false }).first().hover();
   await expect(component.locator('.test-case-annotation').getByLabel('Copy to clipboard').first()).toBeVisible();
@@ -108,7 +108,7 @@ const annotationLinkRenderingTestCase: TestCase = {
 };
 
 test('should correctly render links in annotations', async ({ mount }) => {
-  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={annotationLinkRenderingTestCase} run={0} anchor=''></TestCaseView>);
+  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={annotationLinkRenderingTestCase} prev={undefined} next={undefined} run={0} anchor=''></TestCaseView>);
 
   const firstLink = await component.getByText('https://playwright.dev/docs/intro').first();
   await expect(firstLink).toBeVisible();
@@ -165,8 +165,23 @@ const attachmentLinkRenderingTestCase: TestCase = {
   results: [resultWithAttachment]
 };
 
+const testCaseSummary: TestCaseSummary = {
+  testId: 'nextTestId',
+  title: 'next test',
+  path: [],
+  projectName: 'chromium',
+  location: { file: 'test.spec.ts', line: 42, column: 0 },
+  tags: [],
+  outcome: 'expected',
+  duration: 10,
+  ok: true,
+  annotations: [],
+  results: [resultWithAttachment]
+};
+
+
 test('should correctly render links in attachments', async ({ mount }) => {
-  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={attachmentLinkRenderingTestCase} run={0} anchor=''></TestCaseView>);
+  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={attachmentLinkRenderingTestCase} prev={undefined} next={undefined} run={0} anchor=''></TestCaseView>);
   await component.getByText('first attachment').click();
   const body = await component.getByText('The body with https://playwright.dev/docs/intro link');
   await expect(body).toBeVisible();
@@ -175,8 +190,17 @@ test('should correctly render links in attachments', async ({ mount }) => {
 });
 
 test('should correctly render links in attachment name', async ({ mount }) => {
-  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={attachmentLinkRenderingTestCase} run={0} anchor=''></TestCaseView>);
+  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={attachmentLinkRenderingTestCase} prev={undefined} next={undefined} run={0} anchor=''></TestCaseView>);
   const link = component.getByText('attachment with inline link').locator('a');
   await expect(link).toHaveAttribute('href', 'https://github.com/microsoft/playwright/issues/31284');
   await expect(link).toHaveText('https://github.com/microsoft/playwright/issues/31284');
 });
+
+test('should correctly render prev and next', async ({ mount }) => {
+  const component = await mount(<TestCaseView projectNames={['chromium', 'webkit']} test={attachmentLinkRenderingTestCase} prev={testCaseSummary} next={testCaseSummary} run={0} anchor=''></TestCaseView>);
+  await expect(component).toMatchAriaSnapshot(`
+    - link "« previous"
+    - link "next »"
+    - text: "My test test.spec.ts:42 10ms"
+  `);
+});
diff --git a/packages/html-reporter/src/testCaseView.tsx b/packages/html-reporter/src/testCaseView.tsx
index e3656bf414..cb3cc95cef 100644
--- a/packages/html-reporter/src/testCaseView.tsx
+++ b/packages/html-reporter/src/testCaseView.tsx
@@ -14,12 +14,12 @@
   limitations under the License.
 */
 
-import type { TestCase, TestCaseAnnotation } from './types';
+import type { TestCase, TestCaseAnnotation, TestCaseSummary } from './types';
 import * as React from 'react';
 import { TabbedPane } from './tabbedPane';
 import { AutoChip } from './chip';
 import './common.css';
-import { ProjectLink } from './links';
+import { Link, ProjectLink, SearchParamsContext } from './links';
 import { statusIcon } from './statusIcon';
 import './testCaseView.css';
 import { TestResultView } from './testResultView';
@@ -31,10 +31,14 @@ import { CopyToClipboardContainer } from './copyToClipboard';
 export const TestCaseView: React.FC<{
   projectNames: string[],
   test: TestCase | undefined,
+  next: TestCaseSummary | undefined,
+  prev: TestCaseSummary | undefined,
   anchor: 'video' | 'diff' | '',
   run: number,
-}> = ({ projectNames, test, run, anchor }) => {
+}> = ({ projectNames, test, run, anchor, next, prev }) => {
   const [selectedResultIndex, setSelectedResultIndex] = React.useState(run);
+  const searchParams = React.useContext(SearchParamsContext);
+  const filterParam = searchParams.has('q') ? '&q=' + searchParams.get('q') : '';
 
   const labels = React.useMemo(() => {
     if (!test)
@@ -47,6 +51,11 @@ export const TestCaseView: React.FC<{
   }, [test?.annotations]);
 
   return <div className='test-case-column vbox'>
+    <div className='hbox'>
+      {prev && <Link href={`#?testId=${prev.testId}${filterParam}`}>« previous</Link>}
+      <div style={{ flex: 'auto' }}></div>
+      {next && <Link href={`#?testId=${next.testId}${filterParam}`}>next »</Link>}
+    </div>
     {test && <div className='test-case-path'>{test.path.join(' › ')}</div>}
     {test && <div className='test-case-title'>{test?.title}</div>}
     {test && <div className='hbox'>
diff --git a/packages/html-reporter/src/testFileView.tsx b/packages/html-reporter/src/testFileView.tsx
index bd402a74de..4d6890ad33 100644
--- a/packages/html-reporter/src/testFileView.tsx
+++ b/packages/html-reporter/src/testFileView.tsx
@@ -14,24 +14,25 @@
   limitations under the License.
 */
 
-import type { HTMLReport, TestCaseSummary, TestFileSummary } from './types';
+import type { TestCaseSummary, TestFileSummary } from './types';
 import * as React from 'react';
 import { hashStringToInt, msToString } from './utils';
 import { Chip } from './chip';
-import { filterWithToken, type Filter } from './filter';
-import { generateTraceUrl, Link, navigate, ProjectLink } from './links';
+import { filterWithToken } from './filter';
+import { generateTraceUrl, Link, navigate, ProjectLink, SearchParamsContext } from './links';
 import { statusIcon } from './statusIcon';
 import './testFileView.css';
 import { video, image, trace } from './icons';
 import { clsx } from '@web/uiUtils';
 
 export const TestFileView: React.FC<React.PropsWithChildren<{
-  report: HTMLReport;
   file: TestFileSummary;
+  projectNames: string[];
   isFileExpanded: (fileId: string) => boolean;
   setFileExpanded: (fileId: string, expanded: boolean) => void;
-  filter: Filter;
-}>> = ({ file, report, isFileExpanded, setFileExpanded, filter }) => {
+}>> = ({ file, projectNames, isFileExpanded, setFileExpanded }) => {
+  const searchParams = React.useContext(SearchParamsContext);
+  const filterParam = searchParams.has('q') ? '&q=' + searchParams.get('q') : '';
   return <Chip
     expanded={isFileExpanded(file.fileId)}
     noInsets={true}
@@ -39,7 +40,7 @@ export const TestFileView: React.FC<React.PropsWithChildren<{
     header={<span>
       {file.fileName}
     </span>}>
-    {file.tests.filter(t => filter.matches(t)).map(test =>
+    {file.tests.map(test =>
       <div key={`test-${test.testId}`} className={clsx('test-file-test', 'test-file-test-outcome-' + test.outcome)}>
         <div className='hbox' style={{ alignItems: 'flex-start' }}>
           <div className='hbox'>
@@ -47,11 +48,11 @@ export const TestFileView: React.FC<React.PropsWithChildren<{
               {statusIcon(test.outcome)}
             </span>
             <span>
-              <Link href={`#?testId=${test.testId}`} title={[...test.path, test.title].join(' › ')}>
+              <Link href={`#?testId=${test.testId}${filterParam}`} title={[...test.path, test.title].join(' › ')}>
                 <span className='test-file-title'>{[...test.path, test.title].join(' › ')}</span>
               </Link>
-              {report.projectNames.length > 1 && !!test.projectName &&
-              <ProjectLink projectNames={report.projectNames} projectName={test.projectName} />}
+              {projectNames.length > 1 && !!test.projectName &&
+              <ProjectLink projectNames={projectNames} projectName={test.projectName} />}
               <LabelsClickView labels={test.tags} />
             </span>
           </div>
@@ -90,10 +91,10 @@ function traceBadge(test: TestCaseSummary): JSX.Element | undefined {
 const LabelsClickView: React.FC<React.PropsWithChildren<{
   labels: string[],
 }>> = ({ labels }) => {
+  const searchParams = React.useContext(SearchParamsContext);
 
   const onClickHandle = (e: React.MouseEvent, label: string) => {
     e.preventDefault();
-    const searchParams = new URLSearchParams(window.location.hash.slice(1));
     const q = searchParams.get('q')?.toString() || '';
     const tokens = q.split(' ');
     navigate(filterWithToken(tokens, label, e.metaKey || e.ctrlKey));
diff --git a/packages/html-reporter/src/testFilesView.tsx b/packages/html-reporter/src/testFilesView.tsx
index 30c80c075b..d21088f575 100644
--- a/packages/html-reporter/src/testFilesView.tsx
+++ b/packages/html-reporter/src/testFilesView.tsx
@@ -16,7 +16,6 @@
 
 import type { FilteredStats, HTMLReport, TestFileSummary } from './types';
 import * as React from 'react';
-import type { Filter } from './filter';
 import { TestFileView } from './testFileView';
 import './testFileView.css';
 import { msToString } from './utils';
@@ -24,40 +23,26 @@ import { AutoChip } from './chip';
 import { TestErrorView } from './testErrorView';
 
 export const TestFilesView: React.FC<{
-  report?: HTMLReport,
+  tests: TestFileSummary[],
   expandedFiles: Map<string, boolean>,
   setExpandedFiles: (value: Map<string, boolean>) => void,
-  filter: Filter,
-  filteredStats: FilteredStats,
   projectNames: string[],
-}> = ({ report, filter, expandedFiles, setExpandedFiles, projectNames, filteredStats }) => {
+}> = ({ tests, expandedFiles, setExpandedFiles, projectNames }) => {
   const filteredFiles = React.useMemo(() => {
     const result: { file: TestFileSummary, defaultExpanded: boolean }[] = [];
     let visibleTests = 0;
-    for (const file of report?.files || []) {
-      const tests = file.tests.filter(t => filter.matches(t));
-      visibleTests += tests.length;
-      if (tests.length)
-        result.push({ file, defaultExpanded: visibleTests < 200 });
+    for (const file of tests) {
+      visibleTests += file.tests.length;
+      result.push({ file, defaultExpanded: visibleTests < 200 });
     }
     return result;
-  }, [report, filter]);
+  }, [tests]);
   return <>
-    <div className='mt-2 mx-1' style={{ display: 'flex' }}>
-      {projectNames.length === 1 && !!projectNames[0] && <div data-testid='project-name' style={{ color: 'var(--color-fg-subtle)' }}>Project: {projectNames[0]}</div>}
-      {!filter.empty() && <div data-testid='filtered-tests-count' style={{ color: 'var(--color-fg-subtle)', padding: '0 10px' }}>Filtered: {filteredStats.total} {!!filteredStats.total && ('(' + msToString(filteredStats.duration) + ')')}</div>}
-      <div style={{ flex: 'auto' }}></div>
-      <div data-testid='overall-time' style={{ color: 'var(--color-fg-subtle)', marginRight: '10px' }}>{report ? new Date(report.startTime).toLocaleString() : ''}</div>
-      <div data-testid='overall-duration' style={{ color: 'var(--color-fg-subtle)' }}>Total time: {msToString(report?.duration ?? 0)}</div>
-    </div>
-    {report && !!report.errors.length && <AutoChip header='Errors' dataTestId='report-errors'>
-      {report.errors.map((error, index) => <TestErrorView key={'test-report-error-message-' + index} error={error}></TestErrorView>)}
-    </AutoChip>}
-    {report && filteredFiles.map(({ file, defaultExpanded }) => {
+    {filteredFiles.map(({ file, defaultExpanded }) => {
       return <TestFileView
         key={`file-${file.fileId}`}
-        report={report}
         file={file}
+        projectNames={projectNames}
         isFileExpanded={fileId => {
           const value = expandedFiles.get(fileId);
           if (value === undefined)
@@ -68,9 +53,28 @@ export const TestFilesView: React.FC<{
           const newExpanded = new Map(expandedFiles);
           newExpanded.set(fileId, expanded);
           setExpandedFiles(newExpanded);
-        }}
-        filter={filter}>
+        }}>
       </TestFileView>;
     })}
   </>;
 };
+
+export const TestFilesHeader: React.FC<{
+  report: HTMLReport | undefined,
+  filteredStats?: FilteredStats,
+}> = ({ report, filteredStats }) => {
+  if (!report)
+    return;
+  return <>
+    <div className='mt-2 mx-1' style={{ display: 'flex' }}>
+      {report.projectNames.length === 1 && !!report.projectNames[0] && <div data-testid='project-name' style={{ color: 'var(--color-fg-subtle)' }}>Project: {report.projectNames[0]}</div>}
+      {filteredStats && <div data-testid='filtered-tests-count' style={{ color: 'var(--color-fg-subtle)', padding: '0 10px' }}>Filtered: {filteredStats.total} {!!filteredStats.total && ('(' + msToString(filteredStats.duration) + ')')}</div>}
+      <div style={{ flex: 'auto' }}></div>
+      <div data-testid='overall-time' style={{ color: 'var(--color-fg-subtle)', marginRight: '10px' }}>{report ? new Date(report.startTime).toLocaleString() : ''}</div>
+      <div data-testid='overall-duration' style={{ color: 'var(--color-fg-subtle)' }}>Total time: {msToString(report.duration ?? 0)}</div>
+    </div>
+    {!!report.errors.length && <AutoChip header='Errors' dataTestId='report-errors'>
+      {report.errors.map((error, index) => <TestErrorView key={'test-report-error-message-' + index} error={error}></TestErrorView>)}
+    </AutoChip>}
+  </>;
+};