diff --git a/test/parallel/test-http2-priority-cycle-.js b/test/parallel/test-http2-priority-cycle-.js new file mode 100644 index 00000000000000..af0d66d8343cbf --- /dev/null +++ b/test/parallel/test-http2-priority-cycle-.js @@ -0,0 +1,69 @@ +'use strict'; + +const common = require('../common'); +if (!common.hasCrypto) + common.skip('missing crypto'); +const assert = require('assert'); +const http2 = require('http2'); +const Countdown = require('../common/countdown'); + +const server = http2.createServer(); +const largeBuffer = Buffer.alloc(1e4); + +// Verify that a dependency cycle may exist, but that it doesn't crash anything + +server.on('stream', common.mustCall((stream) => { + stream.respond(); + setImmediate(() => { + stream.end(largeBuffer); + }); +}, 3)); +server.on('session', common.mustCall((session) => { + session.on('priority', (id, parent, weight, exclusive) => { + assert.strictEqual(weight, 16); + assert.strictEqual(exclusive, false); + switch (id) { + case 1: + assert.strictEqual(parent, 5); + break; + case 3: + assert.strictEqual(parent, 1); + break; + case 5: + assert.strictEqual(parent, 3); + break; + default: + assert.fail('should not happen'); + } + }); +})); + +server.listen(0, common.mustCall(() => { + const client = http2.connect(`http://localhost:${server.address().port}`); + + const countdown = new Countdown(3, () => { + client.close(); + server.close(); + }); + + { + const req = client.request(); + req.priority({ parent: 5 }); + req.resume(); + req.on('close', () => countdown.dec()); + } + + { + const req = client.request(); + req.priority({ parent: 1 }); + req.resume(); + req.on('close', () => countdown.dec()); + } + + { + const req = client.request(); + req.priority({ parent: 3 }); + req.resume(); + req.on('close', () => countdown.dec()); + } +}));