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// Flags: --expose-internals
'use strict';
const common = require('../common');
const assert = require('assert');
const EventEmitter = require('events');
const SocketListSend = require('internal/socket_list').SocketListSend;
const key = 'test-key';
// Verify that an error will be received in callback when child is not
// connected.
{
const child = Object.assign(new EventEmitter(), { connected: false });
assert.strictEqual(child.listenerCount('internalMessage'), 0);
const list = new SocketListSend(child, 'test');
list._request('msg', 'cmd', false, common.mustCall((err) => {
common.expectsError({
code: 'ERR_CHILD_CLOSED_BEFORE_REPLY',
type: Error,
message: 'Child closed before reply received'
})(err);
assert.strictEqual(child.listenerCount('internalMessage'), 0);
}));
}
// Verify that the given message will be received in callback.
{
const child = Object.assign(new EventEmitter(), {
connected: true,
_send: function(msg) {
process.nextTick(() =>
this.emit('internalMessage', { key, cmd: 'cmd' })
);
}
});
const list = new SocketListSend(child, key);
list._request('msg', 'cmd', false, common.mustCall((err, msg) => {
assert.strictEqual(err, null);
assert.strictEqual(msg.cmd, 'cmd');
assert.strictEqual(msg.key, key);
assert.strictEqual(child.listenerCount('internalMessage'), 0);
assert.strictEqual(child.listenerCount('disconnect'), 0);
}));
}
// Verify that an error will be received in callback when child was
// disconnected.
{
const child = Object.assign(new EventEmitter(), {
connected: true,
_send: function(msg) { process.nextTick(() => this.emit('disconnect')); }
});
const list = new SocketListSend(child, key);
list._request('msg', 'cmd', false, common.mustCall((err) => {
common.expectsError({
code: 'ERR_CHILD_CLOSED_BEFORE_REPLY',
type: Error,
message: 'Child closed before reply received'
})(err);
assert.strictEqual(child.listenerCount('internalMessage'), 0);
}));
}
// Verify that a "NODE_SOCKET_ALL_CLOSED" message will be received
// in callback.
{
const child = Object.assign(new EventEmitter(), {
connected: true,
_send: function(msg) {
assert.strictEqual(msg.cmd, 'NODE_SOCKET_NOTIFY_CLOSE');
assert.strictEqual(msg.key, key);
process.nextTick(() =>
this.emit('internalMessage', { key, cmd: 'NODE_SOCKET_ALL_CLOSED' })
);
}
});
const list = new SocketListSend(child, key);
list.close(common.mustCall((err, msg) => {
assert.strictEqual(err, null);
assert.strictEqual(msg.cmd, 'NODE_SOCKET_ALL_CLOSED');
assert.strictEqual(msg.key, key);
assert.strictEqual(child.listenerCount('internalMessage'), 0);
assert.strictEqual(child.listenerCount('disconnect'), 0);
}));
}
// Verify that the count of connections will be received in callback.
{
const count = 1;
const child = Object.assign(new EventEmitter(), {
connected: true,
_send: function(msg) {
assert.strictEqual(msg.cmd, 'NODE_SOCKET_GET_COUNT');
assert.strictEqual(msg.key, key);
process.nextTick(() =>
this.emit('internalMessage', {
key,
count,
cmd: 'NODE_SOCKET_COUNT'
})
);
}
});
const list = new SocketListSend(child, key);
list.getConnections(common.mustCall((err, msg) => {
assert.strictEqual(err, null);
assert.strictEqual(msg, count);
assert.strictEqual(child.listenerCount('internalMessage'), 0);
assert.strictEqual(child.listenerCount('disconnect'), 0);
}));
}
// Verify that an error will be received in callback when child is
// disconnected after sending a message and before getting the reply.
{
const count = 1;
const child = Object.assign(new EventEmitter(), {
connected: true,
_send: function() {
process.nextTick(() => {
this.emit('disconnect');
this.emit('internalMessage', { key, count, cmd: 'NODE_SOCKET_COUNT' });
});
}
});
const list = new SocketListSend(child, key);
list.getConnections(common.mustCall((err) => {
common.expectsError({
code: 'ERR_CHILD_CLOSED_BEFORE_REPLY',
type: Error,
message: 'Child closed before reply received'
})(err);
assert.strictEqual(child.listenerCount('internalMessage'), 0);
}));
}
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