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'use strict';
var test = require('tape');
var net = require('net');
var WrappedError = require('../wrapped.js');
test('can create a wrapped error', function t(assert) {
var ServerListenError = WrappedError({
name: 'SomeError',
message: 'server: {causeMessage}',
type: 'server.listen-failed',
requestedPort: null,
host: null
});
var err = new Error('listen EADDRINUSE');
err.code = 'EADDRINUSE';
var err2 = ServerListenError(err, {
requestedPort: 3426,
host: 'localhost'
});
assert.equal(ServerListenError.type, 'server.listen-failed');
assert.equal(err2.message, 'server: listen EADDRINUSE');
assert.equal(err2.requestedPort, 3426);
assert.equal(err2.host, 'localhost');
assert.equal(err2.code, 'EADDRINUSE');
assert.equal(err2.cause, err);
assert.equal(err2.toString(),
'ServerListenFailedError: server: listen EADDRINUSE');
assert.equal(JSON.stringify(err2), JSON.stringify({
type: 'server.listen-failed',
name: 'ServerListenFailedError',
message: 'server: listen EADDRINUSE',
requestedPort: 3426,
host: 'localhost',
causeMessage: 'listen EADDRINUSE',
origMessage: 'listen EADDRINUSE',
code: 'EADDRINUSE',
fullType: 'server.listen-failed~!~error.wrapped-unknown'
}));
assert.end();
});
test('can create wrapped error with syscall', function t(assert) {
var SysCallError = WrappedError({
'message': 'tchannel socket error ({code} from ' +
'{syscall}): {origMessage}',
type: 'syscall.error'
});
var err = new Error('listen EADDRINUSE');
err.code = 'EADDRINUSE';
err.syscall = 'listen';
var err2 = SysCallError(err);
assert.equal(err2.message, 'tchannel socket error ' +
'(EADDRINUSE from listen): listen EADDRINUSE');
assert.equal(err2.syscall, 'listen');
assert.equal(err2.code, 'EADDRINUSE');
assert.equal(err2.type, 'syscall.error');
assert.end();
});
test('wrapping twice', function t(assert) {
var ReadError = WrappedError({
type: 'my.read-error',
message: 'read: {causeMessage}'
});
var DatabaseError = WrappedError({
type: 'my.database-error',
message: 'db: {causeMessage}'
});
var BusinessError = WrappedError({
type: 'my.business-error',
message: 'business: {causeMessage}'
});
var err = BusinessError(
DatabaseError(
ReadError(
new Error('oops')
)
)
);
assert.ok(err);
assert.equal(err.message, 'business: db: read: oops');
assert.equal(err.type, 'my.business-error');
assert.equal(err.fullType, 'my.business-error~!~' +
'my.database-error~!~' +
'my.read-error~!~' +
'error.wrapped-unknown');
assert.end();
});
test('handles bad recursive strings', function t(assert) {
var ReadError = WrappedError({
type: 'wat.wat',
message: 'read: {causeMessage}'
});
var err2 = ReadError(new Error('hi {causeMessage}'));
assert.ok(err2);
assert.equal(err2.message,
'read: hi $INVALID_CAUSE_MESSAGE_LITERAL');
assert.end();
});
test('can wrap real IO errors', function t(assert) {
var ServerListenError = WrappedError({
message: 'server: {causeMessage}',
type: 'server.listen-failed',
requestedPort: null,
host: null
});
var otherServer = net.createServer();
otherServer.once('listening', onPortAllocated);
otherServer.listen(0);
function onPortAllocated() {
var port = otherServer.address().port;
var server = net.createServer();
server.on('error', onError);
server.listen(port);
function onError(cause) {
var err = ServerListenError(cause, {
host: 'localhost',
requestedPort: port
});
otherServer.close();
assertOnError(err, cause, port);
}
}
function assertOnError(err, cause, port) {
assert.ok(err.message.indexOf('server: ') >= 0)
assert.ok(err.message.indexOf('listen EADDRINUSE') >= 0)
assert.equal(err.requestedPort, port);
assert.equal(err.host, 'localhost');
assert.equal(err.code, 'EADDRINUSE');
assert.equal(err.cause, cause);
assert.ok(err.toString().indexOf('ServerListenFailedError: ') >= 0)
assert.ok(err.toString().indexOf('server: ') >= 0)
assert.ok(err.toString().indexOf('listen EADDRINUSE') >= 0)
var expectedMessage = err.message
var expectedOrigMessage = err.origMessage
assert.ok(err.origMessage.indexOf('listen EADDRINUSE') >= 0)
assert.ok(err.origMessage.indexOf('server: ') === -1)
assert.equal(JSON.stringify(err), JSON.stringify({
type: 'server.listen-failed',
name: 'ServerListenFailedError',
message: expectedMessage,
requestedPort: port,
host: 'localhost',
causeMessage: expectedOrigMessage,
origMessage: expectedOrigMessage,
code: 'EADDRINUSE',
errno: 'EADDRINUSE',
syscall: 'listen',
fullType: 'server.listen-failed~!~' +
'error.wrapped-io.listen.EADDRINUSE'
}));
assert.end();
}
});
test('can wrap assert errors', function t(assert) {
var TestError = WrappedError({
message: 'error: {origMessage}',
type: 'error'
});
var assertError;
try { require('assert').equal('a', 'b'); }
catch (_err) { assertError = _err; }
var err = TestError(assertError);
assert.equal(err.cause.actual, 'a');
assert.end();
})
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