feat: supports http2

Author: lamweili

Diff for: README.md

@@ -53,6 +53,37 @@ request(app)
   });
 ```
 
+To enable http2 protocol, simply append an options to `request` or `request.agent`:
+
+```js
+const request = require('supertest');
+const express = require('express');
+
+const app = express();
+
+app.get('/user', function(req, res) {
+  res.status(200).json({ name: 'john' });
+});
+
+request(app, { http2: true })
+  .get('/user')
+  .expect('Content-Type', /json/)
+  .expect('Content-Length', '15')
+  .expect(200)
+  .end(function(err, res) {
+    if (err) throw err;
+  });
+
+request.agent(app, { http2: true })
+  .get('/user')
+  .expect('Content-Type', /json/)
+  .expect('Content-Length', '15')
+  .expect(200)
+  .end(function(err, res) {
+    if (err) throw err;
+  });
+```
+
 Here's an example with mocha, note how you can pass `done` straight to any of the `.expect()` calls:
 
 ```js

Diff for: index.js

@@ -5,6 +5,12 @@
  */
 const methods = require('methods');
 const http = require('http');
+let http2;
+try {
+  http2 = require('http2'); // eslint-disable-line global-require
+} catch (_) {
+  // eslint-disable-line no-empty
+}
 const Test = require('./lib/test.js');
 const agent = require('./lib/agent.js');
 
@@ -16,16 +22,29 @@ const agent = require('./lib/agent.js');
  * @return {Test}
  * @api public
  */
-module.exports = function(app) {
+module.exports = function(app, options = {}) {
   const obj = {};
 
   if (typeof app === 'function') {
-    app = http.createServer(app); // eslint-disable-line no-param-reassign
+    if (options.http2) {
+      if (!http2) {
+        throw new Error(
+          'supertest: this version of Node.js does not support http2'
+        );
+      }
+      app = http2.createServer(app); // eslint-disable-line no-param-reassign
+    } else {
+      app = http.createServer(app); // eslint-disable-line no-param-reassign
+    }
   }
 
   methods.forEach(function(method) {
     obj[method] = function(url) {
-      return new Test(app, method, url);
+      var test = new Test(app, method, url);
+      if (options.http2) {
+        test.http2();
+      }
+      return test;
     };
   });
 

Diff for: lib/agent.js

@@ -7,6 +7,12 @@
 const { agent: Agent } = require('superagent');
 const methods = require('methods');
 const http = require('http');
+let http2;
+try {
+  http2 = require('http2'); // eslint-disable-line global-require
+} catch (_) {
+  // eslint-disable-line no-empty
+}
 const Test = require('./test.js');
 
 /**
@@ -17,10 +23,24 @@ const Test = require('./test.js');
  * @api public
  */
 
-function TestAgent(app, options) {
+function TestAgent(app, options = {}) {
   if (!(this instanceof TestAgent)) return new TestAgent(app, options);
-  if (typeof app === 'function') app = http.createServer(app); // eslint-disable-line no-param-reassign
+
   Agent.call(this, options);
+  this._options = options;
+
+  if (typeof app === 'function') {
+    if (options.http2) {
+      if (!http2) {
+        throw new Error(
+          'supertest: this version of Node.js does not support http2'
+        );
+      }
+      app = http2.createServer(app); // eslint-disable-line no-param-reassign
+    } else {
+      app = http.createServer(app); // eslint-disable-line no-param-reassign
+    }
+  }
   this.app = app;
 }
 
@@ -40,6 +60,9 @@ TestAgent.prototype.host = function(host) {
 methods.forEach(function(method) {
   TestAgent.prototype[method] = function(url, fn) { // eslint-disable-line no-unused-vars
     const req = new Test(this.app, method.toUpperCase(), url);
+    if (this._options.http2) {
+      req.http2();
+    }
 
     if (this._host) {
       req.set('host', this._host);

Diff for: lib/test.js

@@ -6,7 +6,7 @@
 
 const { inspect } = require('util');
 const { STATUS_CODES } = require('http');
-const { Server } = require('https');
+const { Server } = require('tls');
 const { deepStrictEqual } = require('assert');
 const { Request } = require('superagent');
 

Diff for: package.json

@@ -46,6 +46,7 @@
     "mocha": "^10.0.0",
     "nock": "^13.2.8",
     "nyc": "^15.1.0",
+    "proxyquire": "^2.1.3",
     "should": "^13.2.3"
   }
 }

Diff for: test/supertest.js

@@ -1,6 +1,12 @@
 'use strict';
 
 const https = require('https');
+let http2;
+try {
+  http2 = require('http2'); // eslint-disable-line global-require
+} catch (_) {
+  // eslint-disable-line no-empty
+}
 const fs = require('fs');
 const path = require('path');
 const should = require('should');
@@ -1340,3 +1346,62 @@ describe('request.get(url).query(vals) works as expected', function () {
       });
   });
 });
+
+const describeHttp2 = (http2) ? describe : describe.skip;
+describeHttp2('http2', function() {
+  // eslint-disable-next-line global-require
+  const proxyquire = require('proxyquire');
+
+  const tests = [
+    {
+      title: 'request(app)',
+      api: request,
+      mockApi: proxyquire('../index.js', { http2: null })
+    },
+    {
+      title: 'request.agent(app)',
+      api: request.agent,
+      mockApi: proxyquire('../lib/agent.js', { http2: null })
+    }
+  ];
+
+  tests.forEach(({ title, api, mockApi }) => {
+    describe(title, function () {
+      const app = function(req, res) {
+        res.end('hey');
+      };
+
+      it('should fire up the app on an ephemeral port', function (done) {
+        api(app, { http2: true })
+          .get('/')
+          .end(function (err, res) {
+            res.status.should.equal(200);
+            res.text.should.equal('hey');
+            done();
+          });
+      });
+
+      it('should work with an active server', function (done) {
+        const server = http2.createServer(app);
+
+        server.listen(function () {
+          api(server)
+            .get('/')
+            .http2()
+            .end(function (err, res) {
+              res.status.should.equal(200);
+              res.text.should.equal('hey');
+              // close the external server explictly
+              server.close(done);
+            });
+        });
+      });
+
+      it('should throw error if http2 is not supported', function() {
+        (function() {
+          mockApi(app, { http2: true });
+        }).should.throw('supertest: this version of Node.js does not support http2');
+      });
+    });
+  });
+});