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nodejs/test/parallel/test-http2-compat-serverresponse-writehead.js
Ruben Bridgewater e038d6a1cd
test: refactor common.expectsError
This completely refactors the `expectsError` behavior: so far it's
almost identical to `assert.throws(fn, object)` in case it was used
with a function as first argument. It had a magical property check
that allowed to verify a functions `type` in case `type` was passed
used in the validation object. This pattern is now completely removed
and `assert.throws()` should be used instead.

The main intent for `common.expectsError()` is to verify error cases
for callback based APIs. This is now more flexible by accepting all
validation possibilites that `assert.throws()` accepts as well. No
magical properties exist anymore. This reduces surprising behavior
for developers who are not used to the Node.js core code base.

This has the side effect that `common` is used significantly less
frequent.

PR-URL: https://github.com/nodejs/node/pull/31092
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2019-12-31 15:54:20 +01:00

57 lines
1.6 KiB
JavaScript

'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const h2 = require('http2');
// Http2ServerResponse.writeHead should override previous headers
const server = h2.createServer();
server.listen(0, common.mustCall(function() {
const port = server.address().port;
server.once('request', common.mustCall(function(request, response) {
response.setHeader('foo-bar', 'def456');
// Override
const returnVal = response.writeHead(418, { 'foo-bar': 'abc123' });
assert.strictEqual(returnVal, response);
assert.throws(() => { response.writeHead(300); }, {
code: 'ERR_HTTP2_HEADERS_SENT'
});
response.on('finish', common.mustCall(function() {
server.close();
process.nextTick(common.mustCall(() => {
// The stream is invalid at this point,
// and this line verifies this does not throw.
response.writeHead(300);
}));
}));
response.end();
}));
const url = `http://localhost:${port}`;
const client = h2.connect(url, common.mustCall(function() {
const headers = {
':path': '/',
':method': 'GET',
':scheme': 'http',
':authority': `localhost:${port}`
};
const request = client.request(headers);
request.on('response', common.mustCall(function(headers) {
assert.strictEqual(headers['foo-bar'], 'abc123');
assert.strictEqual(headers[':status'], 418);
}, 1));
request.on('end', common.mustCall(function() {
client.close();
}));
request.end();
request.resume();
}));
}));