[next] Add public dir check and update tests (#5526)

* Add public dir check and update tests

* De-dupe test checks a bit

packages/now-next/src/index.ts

@@ -1933,7 +1933,25 @@ export async function build({
     path.join(entryPath, outputDirectory, 'static')
   );
   const staticFolderFiles = await glob('**', path.join(entryPath, 'static'));
-  const publicFolderFiles = await glob('**', path.join(entryPath, 'public'));
+
+  let publicFolderFiles: Files = {};
+  let publicFolderPath: string | undefined;
+
+  if (await pathExists(path.join(entryPath, 'public'))) {
+    publicFolderPath = path.join(entryPath, 'public');
+  } else if (
+    // check at the same level as the output directory also
+    await pathExists(path.join(entryPath, outputDirectory, '../public'))
+  ) {
+    publicFolderPath = path.join(entryPath, outputDirectory, '../public');
+  }
+
+  if (publicFolderPath) {
+    debug(`Using public folder at ${publicFolderPath}`);
+    publicFolderFiles = await glob('**/*', publicFolderPath);
+  } else {
+    debug('No public folder found');
+  }
 
   const staticFiles = Object.keys(nextStaticFiles).reduce(
     (mappedFiles, file) => ({
@@ -1954,10 +1972,7 @@ export async function build({
   const publicDirectoryFiles = Object.keys(publicFolderFiles).reduce(
     (mappedFiles, file) => ({
       ...mappedFiles,
-      [path.join(
-        entryDirectory,
-        file.replace(/^public[/\\]+/, '')
-      )]: publicFolderFiles[file],
+      [path.join(entryDirectory, file)]: publicFolderFiles[file],
     }),
     {}
   );

packages/now-next/test/fixtures/00-i18n-support-root-catchall/additional.js

@@ -1,6 +1,29 @@
 /* eslint-env jest */
 const fetch = require('node-fetch');
 const cheerio = require('cheerio');
+const { check, waitFor } = require('../../utils');
+
+async function checkForChange(url, initialValue, hardError) {
+  return check(
+    async () => {
+      const res = await fetch(url);
+
+      if (res.status !== 200) {
+        throw new Error(`Invalid status code ${res.status}`);
+      }
+      const $ = cheerio.load(await res.text());
+      const props = JSON.parse($('#props').text());
+
+      if (isNaN(props.random)) {
+        throw new Error(`Invalid random value ${props.random}`);
+      }
+      const newValue = props.random;
+      return initialValue !== newValue ? 'success' : 'fail';
+    },
+    'success',
+    hardError
+  );
+}
 
 module.exports = function (ctx) {
   it('should revalidate content properly from /', async () => {
@@ -13,15 +36,15 @@ module.exports = function (ctx) {
     expect($('#router-locale').text()).toBe('en-US');
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('en-US');
+
+    await checkForChange(`${ctx.deploymentUrl}/`, initialRandom);
   });
 
   it('should revalidate content properly from /fr', async () => {
@@ -34,15 +57,15 @@ module.exports = function (ctx) {
     expect($('#router-locale').text()).toBe('fr');
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/fr`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('fr');
+
+    await checkForChange(`${ctx.deploymentUrl}/fr`, initialRandom);
   });
 
   it('should revalidate content properly from /nl-NL', async () => {
@@ -55,15 +78,15 @@ module.exports = function (ctx) {
     expect($('#router-locale').text()).toBe('nl-NL');
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/nl-NL`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('nl-NL');
+
+    await checkForChange(`${ctx.deploymentUrl}/nl-NL`, initialRandom);
   });
 
   it('should revalidate content properly from /second', async () => {
@@ -77,15 +100,15 @@ module.exports = function (ctx) {
     expect($('#router-locale').text()).toBe('en-US');
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/second`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('en-US');
+
+    await checkForChange(`${ctx.deploymentUrl}/second`, initialRandom);
   });
 
   it('should revalidate content properly from /fr/second', async () => {
@@ -99,15 +122,15 @@ module.exports = function (ctx) {
     expect($('#router-locale').text()).toBe('fr');
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/fr/second`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('fr');
+
+    await checkForChange(`${ctx.deploymentUrl}/fr/second`, initialRandom);
   });
 
   it('should revalidate content properly from /nl-NL/second', async () => {
@@ -121,14 +144,14 @@ module.exports = function (ctx) {
     expect($('#router-locale').text()).toBe('nl-NL');
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/nl-NL/second`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('nl-NL');
+
+    await checkForChange(`${ctx.deploymentUrl}/nl-NL/second`, initialRandom);
   });
 };

packages/now-next/test/fixtures/00-i18n-support/additional.js

@@ -1,6 +1,29 @@
 /* eslint-env jest */
 const fetch = require('node-fetch');
 const cheerio = require('cheerio');
+const { check, waitFor } = require('../../utils');
+
+async function checkForChange(url, initialValue, hardError) {
+  return check(
+    async () => {
+      const res = await fetch(url);
+
+      if (res.status !== 200) {
+        throw new Error(`Invalid status code ${res.status}`);
+      }
+      const $ = cheerio.load(await res.text());
+      const props = JSON.parse($('#props').text());
+
+      if (isNaN(props.random)) {
+        throw new Error(`Invalid random value ${props.random}`);
+      }
+      const newValue = props.random;
+      return initialValue !== newValue ? 'success' : 'fail';
+    },
+    'success',
+    hardError
+  );
+}
 
 module.exports = function (ctx) {
   it('should revalidate content properly from /', async () => {
@@ -10,7 +33,7 @@ module.exports = function (ctx) {
     expect(dataRes.status).toBe(200);
     await dataRes.json();
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/`);
     expect(res.status).toBe(200);
@@ -22,16 +45,17 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({});
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
+
     expect($('#router-locale').text()).toBe('en-US');
     expect(JSON.parse($('#router-query').text())).toEqual({});
+
+    await checkForChange(`${ctx.deploymentUrl}/`, initialRandom);
   });
 
   it('should revalidate content properly from /fr', async () => {
@@ -41,7 +65,7 @@ module.exports = function (ctx) {
     expect(dataRes.status).toBe(200);
     await dataRes.json();
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/fr`);
     expect(res.status).toBe(200);
@@ -53,16 +77,16 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({});
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/fr`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('fr');
     expect(JSON.parse($('#router-query').text())).toEqual({});
+
+    await checkForChange(`${ctx.deploymentUrl}/fr`, initialRandom);
   });
 
   it('should revalidate content properly from /nl-NL', async () => {
@@ -72,7 +96,7 @@ module.exports = function (ctx) {
     expect(dataRes.status).toBe(200);
     await dataRes.json();
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/nl-NL`);
     expect(res.status).toBe(200);
@@ -84,16 +108,16 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({});
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/nl-NL`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('nl-NL');
     expect(JSON.parse($('#router-query').text())).toEqual({});
+
+    await checkForChange(`${ctx.deploymentUrl}/nl-NL`, initialRandom);
   });
 
   it('should revalidate content properly from /gsp/fallback/first', async () => {
@@ -104,7 +128,7 @@ module.exports = function (ctx) {
     expect(dataRes.status).toBe(200);
     await dataRes.json();
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/gsp/fallback/first`);
     expect(res.status).toBe(200);
@@ -118,17 +142,21 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/gsp/fallback/first`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
     const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('en-US');
     expect(props2.params).toEqual({ slug: 'first' });
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
+
+    await checkForChange(
+      `${ctx.deploymentUrl}/gsp/fallback/first`,
+      initialRandom
+    );
   });
 
   it('should revalidate content properly from /fr/gsp/fallback/first', async () => {
@@ -139,7 +167,7 @@ module.exports = function (ctx) {
     expect(dataRes.status).toBe(200);
     await dataRes.json();
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/fr/gsp/fallback/first`);
     expect(res.status).toBe(200);
@@ -153,17 +181,21 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/fr/gsp/fallback/first`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
     const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('fr');
     expect(props2.params).toEqual({ slug: 'first' });
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
+
+    await checkForChange(
+      `${ctx.deploymentUrl}/fr/gsp/fallback/first`,
+      initialRandom
+    );
   });
 
   it('should revalidate content properly from /nl-NL/gsp/fallback/first', async () => {
@@ -174,7 +206,7 @@ module.exports = function (ctx) {
     expect(dataRes.status).toBe(200);
     await dataRes.json();
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/nl-NL/gsp/fallback/first`);
     expect(res.status).toBe(200);
@@ -188,17 +220,21 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/nl-NL/gsp/fallback/first`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
     const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('nl-NL');
     expect(props2.params).toEqual({ slug: 'first' });
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
+
+    await checkForChange(
+      `${ctx.deploymentUrl}/nl-NL/gsp/fallback/first`,
+      initialRandom
+    );
   });
   //
 
@@ -212,7 +248,7 @@ module.exports = function (ctx) {
     const initRes = await fetch(`${ctx.deploymentUrl}/gsp/fallback/new-page`);
     expect(initRes.status).toBe(200);
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/gsp/fallback/new-page`);
     expect(res.status).toBe(200);
@@ -226,17 +262,21 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'new-page' });
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/gsp/fallback/new-page`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
     const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('en-US');
     expect(props2.params).toEqual({ slug: 'new-page' });
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'new-page' });
+
+    await checkForChange(
+      `${ctx.deploymentUrl}/gsp/fallback/new-page`,
+      initialRandom
+    );
   });
 
   it('should revalidate content properly from /fr/gsp/fallback/new-page', async () => {
@@ -246,7 +286,7 @@ module.exports = function (ctx) {
     );
     expect(dataRes.status).toBe(200);
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/fr/gsp/fallback/new-page`);
     expect(res.status).toBe(200);
@@ -260,15 +300,18 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'new-page' });
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/fr/gsp/fallback/new-page`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
-    const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('fr');
+
+    await checkForChange(
+      `${ctx.deploymentUrl}/fr/gsp/fallback/new-page`,
+      initialRandom
+    );
   });
 
   it('should revalidate content properly from /nl-NL/gsp/fallback/new-page', async () => {
@@ -278,7 +321,7 @@ module.exports = function (ctx) {
     );
     expect(dataRes.status).toBe(200);
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/nl-NL/gsp/fallback/new-page`);
     expect(res.status).toBe(200);
@@ -292,7 +335,7 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'new-page' });
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(
       `${ctx.deploymentUrl}/nl-NL/gsp/fallback/new-page`
@@ -301,10 +344,14 @@ module.exports = function (ctx) {
 
     $ = cheerio.load(await res2.text());
     const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('nl-NL');
     expect(props2.params).toEqual({ slug: 'new-page' });
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'new-page' });
+
+    await checkForChange(
+      `${ctx.deploymentUrl}/nl-NL/gsp/fallback/new-page`,
+      initialRandom
+    );
   });
 
   it('should revalidate content properly from /gsp/no-fallback/first', async () => {
@@ -314,7 +361,7 @@ module.exports = function (ctx) {
     expect(dataRes.status).toBe(200);
     await dataRes.json();
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/gsp/no-fallback/first`);
     expect(res.status).toBe(200);
@@ -327,17 +374,21 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/gsp/no-fallback/first`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
     const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('en-US');
     expect(props2.params).toEqual({ slug: 'first' });
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
+
+    await checkForChange(
+      `${ctx.deploymentUrl}/gsp/no-fallback/first`,
+      initialRandom
+    );
   });
 
   it('should revalidate content properly from /fr/gsp/no-fallback/first', async () => {
@@ -347,7 +398,7 @@ module.exports = function (ctx) {
     expect(dataRes.status).toBe(200);
     await dataRes.json();
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(`${ctx.deploymentUrl}/fr/gsp/no-fallback/first`);
     expect(res.status).toBe(200);
@@ -360,17 +411,21 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(`${ctx.deploymentUrl}/fr/gsp/no-fallback/first`);
     expect(res2.status).toBe(200);
 
     $ = cheerio.load(await res2.text());
     const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('fr');
     expect(props2.params).toEqual({ slug: 'first' });
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'first' });
+
+    await checkForChange(
+      `${ctx.deploymentUrl}/fr/gsp/no-fallback/first`,
+      initialRandom
+    );
   });
 
   it('should revalidate content properly from /nl-NL/gsp/no-fallback/second', async () => {
@@ -380,7 +435,7 @@ module.exports = function (ctx) {
     expect(dataRes.status).toBe(200);
     await dataRes.json();
 
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res = await fetch(
       `${ctx.deploymentUrl}/nl-NL/gsp/no-fallback/second`
@@ -395,7 +450,7 @@ module.exports = function (ctx) {
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'second' });
 
     // wait for revalidation to occur
-    await new Promise(resolve => setTimeout(resolve, 4000));
+    await waitFor(2000);
 
     const res2 = await fetch(
       `${ctx.deploymentUrl}/nl-NL/gsp/no-fallback/second`
@@ -404,9 +459,13 @@ module.exports = function (ctx) {
 
     $ = cheerio.load(await res2.text());
     const props2 = JSON.parse($('#props').text());
-    expect(initialRandom).not.toBe(props2.random);
     expect($('#router-locale').text()).toBe('nl-NL');
     expect(props2.params).toEqual({ slug: 'second' });
     expect(JSON.parse($('#router-query').text())).toEqual({ slug: 'second' });
+
+    await checkForChange(
+      `${ctx.deploymentUrl}/nl-NL/gsp/no-fallback/second`,
+      initialRandom
+    );
   });
 };

packages/now-next/test/fixtures/00-public-dir-output-dir/now.json

@@ -0,0 +1,39 @@
+{
+  "version": 2,
+  "builds": [
+    {
+      "src": "package.json",
+      "use": "@vercel/next",
+      "config": {
+        "outputDirectory": "web/.next"
+      }
+    }
+  ],
+  "probes": [
+    {
+      "path": "/",
+      "status": 200,
+      "mustContain": "Index page"
+    },
+    {
+      "path": "/dynamic/first",
+      "status": 200,
+      "mustContain": "Dynamic Page"
+    },
+    {
+      "path": "/dynamic-ssr/second",
+      "status": 200,
+      "mustContain": "Dynamic SSR Page"
+    },
+    {
+      "path": "/hello.txt",
+      "status": 200,
+      "mustContain": "hello world!"
+    },
+    {
+      "path": "/public/data.txt",
+      "status": 200,
+      "mustContain": "data!!"
+    }
+  ]
+}

packages/now-next/test/fixtures/00-public-dir-output-dir/package.json

@@ -0,0 +1,10 @@
+{
+  "scripts": {
+    "build": "next build web"
+  },
+  "dependencies": {
+    "next": "canary",
+    "react": "^16.8.6",
+    "react-dom": "^16.8.6"
+  }
+}

packages/now-next/test/fixtures/00-public-dir-output-dir/web/pages/dynamic-ssr/[slug].js

@@ -0,0 +1,12 @@
+export function getServerSideProps() {
+  return {
+    props: {
+      hello: 'world',
+      random: Math.random(),
+    },
+  };
+}
+
+export default function Dynamic() {
+  return <p>Dynamic SSR Page</p>;
+}

packages/now-next/test/fixtures/00-public-dir-output-dir/web/pages/dynamic/[slug].js

@@ -0,0 +1,3 @@
+export default function Dynamic() {
+  return <p>Dynamic Page</p>;
+}

packages/now-next/test/fixtures/00-public-dir-output-dir/web/pages/index.js

@@ -0,0 +1,3 @@
+export default function Index() {
+  return <p>Index page</p>;
+}

packages/now-next/test/fixtures/00-public-dir-output-dir/web/public/hello.txt

@@ -0,0 +1 @@
+hello world!

packages/now-next/test/fixtures/00-public-dir-output-dir/web/public/public/data.txt

@@ -0,0 +1 @@
+data!!

packages/now-next/test/utils.js

@@ -0,0 +1,39 @@
+async function waitFor(milliseconds) {
+  return new Promise(resolve => {
+    setTimeout(resolve, milliseconds);
+  });
+}
+
+async function check(contentFn, regex, hardError = true) {
+  let content;
+  let lastErr;
+
+  for (let tries = 0; tries < 30; tries++) {
+    try {
+      content = await contentFn();
+      if (typeof regex === 'string') {
+        if (regex === content) {
+          return true;
+        }
+      } else if (regex.test(content)) {
+        // found the content
+        return true;
+      }
+      await waitFor(1000);
+    } catch (err) {
+      await waitFor(1000);
+      lastErr = err;
+    }
+  }
+  console.error('TIMED OUT CHECK: ', { regex, content, lastErr });
+
+  if (hardError) {
+    throw new Error('TIMED OUT: ' + regex + '\n\n' + content);
+  }
+  return false;
+}
+
+module.exports = {
+  check,
+  waitFor,
+};

test/lib/run-build-lambda.js

@@ -1,3 +1,4 @@
+const fs = require('fs-extra');
 const { glob, getWriteableDirectory } = require('@vercel/build-utils');
 
 function runAnalyze(wrapper, context) {
@@ -11,13 +12,21 @@ function runAnalyze(wrapper, context) {
 async function runBuildLambda(inputPath) {
   const inputFiles = await glob('**', inputPath);
   const nowJsonRef = inputFiles['vercel.json'] || inputFiles['now.json'];
+
+  if (typeof expect !== 'undefined') {
     expect(nowJsonRef).toBeDefined();
+  }
   const nowJson = require(nowJsonRef.fsPath);
-  expect(nowJson.builds.length).toBe(1);
   const build = nowJson.builds[0];
+
+  if (typeof expect !== 'undefined') {
     expect(build.src.includes('*')).toBeFalsy();
+  }
   const entrypoint = build.src.replace(/^\//, ''); // strip leftmost slash
+
+  if (typeof expect !== 'undefined') {
     expect(inputFiles[entrypoint]).toBeDefined();
+  }
   inputFiles[entrypoint].digest =
     'this-is-a-fake-digest-for-non-default-analyze';
   const wrapper = require(build.use);
@@ -28,7 +37,7 @@ async function runBuildLambda(inputPath) {
     config: build.config,
   });
 
-  const workPath = await getWriteableDirectory();
+  const workPath = await fs.realpath(await getWriteableDirectory());
   const buildResult = await wrapper.build({
     files: inputFiles,
     entrypoint,