node/test/parallel/test-http2-info-headers-errors.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

89 lines
2.3 KiB
JavaScript

'use strict';
// Flags: --expose-internals
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const http2 = require('http2');
const { internalBinding } = require('internal/test/binding');
const {
constants,
Http2Stream,
nghttp2ErrorString
} = internalBinding('http2');
const { NghttpError } = require('internal/http2/util');
// Tests error handling within additionalHeaders
// - every other NGHTTP2 error from binding (should emit stream error)
const specificTestKeys = [];
const specificTests = [];
const genericTests = Object.getOwnPropertyNames(constants)
.filter((key) => (
key.indexOf('NGHTTP2_ERR') === 0 && specificTestKeys.indexOf(key) < 0
))
.map((key) => ({
ngError: constants[key],
error: {
code: 'ERR_HTTP2_ERROR',
constructor: NghttpError,
name: 'Error',
message: nghttp2ErrorString(constants[key])
},
type: 'stream'
}));
const tests = specificTests.concat(genericTests);
let currentError;
// Mock sendHeaders because we only care about testing error handling
Http2Stream.prototype.info = () => currentError.ngError;
const server = http2.createServer();
server.on('stream', common.mustCall((stream, headers) => {
const errorMustCall = common.expectsError(currentError.error);
const errorMustNotCall = common.mustNotCall(
`${currentError.error.code} should emit on ${currentError.type}`
);
if (currentError.type === 'stream') {
stream.session.on('error', errorMustNotCall);
stream.on('error', errorMustCall);
} else {
stream.session.once('error', errorMustCall);
stream.on('error', errorMustNotCall);
}
stream.additionalHeaders({ ':status': 100 });
}, tests.length));
server.listen(0, common.mustCall(() => runTest(tests.shift())));
function runTest(test) {
const client = http2.connect(`http://localhost:${server.address().port}`);
const req = client.request({ ':method': 'POST' });
currentError = test;
req.resume();
req.end();
req.on('error', common.expectsError({
code: 'ERR_HTTP2_STREAM_ERROR',
name: 'Error',
message: 'Stream closed with error code NGHTTP2_INTERNAL_ERROR'
}));
req.on('close', common.mustCall(() => {
client.close();
if (!tests.length) {
server.close();
} else {
runTest(tests.shift());
}
}));
}