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nodejs/test/parallel/test-http2-client-onconnect-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

116 lines
2.9 KiB
JavaScript

'use strict';
// Flags: --expose-internals
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const { internalBinding } = require('internal/test/binding');
const {
constants,
Http2Session,
nghttp2ErrorString
} = internalBinding('http2');
const http2 = require('http2');
const { NghttpError } = require('internal/http2/util');
// Tests error handling within requestOnConnect
// - NGHTTP2_ERR_STREAM_ID_NOT_AVAILABLE (should emit session error)
// - NGHTTP2_ERR_INVALID_ARGUMENT (should emit stream error)
// - every other NGHTTP2 error from binding (should emit session error)
const specificTestKeys = [
'NGHTTP2_ERR_STREAM_ID_NOT_AVAILABLE',
'NGHTTP2_ERR_INVALID_ARGUMENT'
];
const specificTests = [
{
ngError: constants.NGHTTP2_ERR_STREAM_ID_NOT_AVAILABLE,
error: {
code: 'ERR_HTTP2_OUT_OF_STREAMS',
name: 'Error',
message: 'No stream ID is available because ' +
'maximum stream ID has been reached'
},
type: 'stream'
},
{
ngError: constants.NGHTTP2_ERR_INVALID_ARGUMENT,
error: {
code: 'ERR_HTTP2_STREAM_SELF_DEPENDENCY',
name: 'Error',
message: 'A stream cannot depend on itself'
},
type: 'stream'
},
];
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: 'session'
}));
const tests = specificTests.concat(genericTests);
let currentError;
// Mock submitRequest because we only care about testing error handling
Http2Session.prototype.request = () => currentError;
const server = http2.createServer(common.mustNotCall());
server.listen(0, common.mustCall(() => runTest(tests.shift())));
function runTest(test) {
const client = http2.connect(`http://localhost:${server.address().port}`);
client.on('close', common.mustCall());
const req = client.request({ ':method': 'POST' });
currentError = test.ngError;
req.resume();
req.end();
const errorMustCall = common.expectsError(test.error);
const errorMustNotCall = common.mustNotCall(
`${test.error.code} should emit on ${test.type}`
);
if (test.type === 'stream') {
client.on('error', errorMustNotCall);
req.on('error', errorMustCall);
} else {
client.on('error', errorMustCall);
req.on('error', (err) => {
common.expectsError({
code: 'ERR_HTTP2_STREAM_CANCEL'
})(err);
common.expectsError({
code: 'ERR_HTTP2_ERROR'
})(err.cause);
});
}
req.on('end', common.mustCall());
req.on('close', common.mustCall(() => {
client.destroy();
if (!tests.length) {
server.close();
} else {
runTest(tests.shift());
}
}));
}