node-postgres/test/unit/connection/inbound-parser-tests.js
Brian Carlson 4cdd7a116b Compile result parsing for a 60% speed increase
Tested against a 1000 row result set.  Need to test against
smaller result sets & figure out a way to make this backwards compatible if possible
2013-08-07 15:33:57 -05:00

471 lines
12 KiB
JavaScript

require(__dirname+'/test-helper');
return false;
var Connection = require(__dirname + '/../../../lib/connection');
var buffers = require(__dirname + '/../../test-buffers');
var PARSE = function(buffer) {
return new Parser(buffer).parse();
};
var authOkBuffer = buffers.authenticationOk();
var paramStatusBuffer = buffers.parameterStatus('client_encoding', 'UTF8');
var readyForQueryBuffer = buffers.readyForQuery();
var backendKeyDataBuffer = buffers.backendKeyData(1,2);
var commandCompleteBuffer = buffers.commandComplete("SELECT 3");
var parseCompleteBuffer = buffers.parseComplete();
var bindCompleteBuffer = buffers.bindComplete();
var portalSuspendedBuffer = buffers.portalSuspended();
var addRow = function(bufferList, name, offset) {
return bufferList.addCString(name) //field name
.addInt32(offset++) //table id
.addInt16(offset++) //attribute of column number
.addInt32(offset++) //objectId of field's data type
.addInt16(offset++) //datatype size
.addInt32(offset++) //type modifier
.addInt16(0) //format code, 0 => text
};
var row1 = {
name: 'id',
tableID: 1,
attributeNumber: 2,
dataTypeID: 3,
dataTypeSize: 4,
typeModifier: 5,
formatCode: 0
};
var oneRowDescBuff = new buffers.rowDescription([row1]);
row1.name = 'bang';
var twoRowBuf = new buffers.rowDescription([row1,{
name: 'whoah',
tableID: 10,
attributeNumber: 11,
dataTypeID: 12,
dataTypeSize: 13,
typeModifier: 14,
formatCode: 0
}])
var emptyRowFieldBuf = new BufferList()
.addInt16(0)
.join(true, 'D');
var emptyRowFieldBuf = buffers.dataRow();
var oneFieldBuf = new BufferList()
.addInt16(1) //number of fields
.addInt32(5) //length of bytes of fields
.addCString('test')
.join(true, 'D');
var oneFieldBuf = buffers.dataRow(['test']);
var expectedAuthenticationOkayMessage = {
name: 'authenticationOk',
length: 8
};
var expectedParameterStatusMessage = {
name: 'parameterStatus',
parameterName: 'client_encoding',
parameterValue: 'UTF8',
length: 25
};
var expectedBackendKeyDataMessage = {
name: 'backendKeyData',
processID: 1,
secretKey: 2
};
var expectedReadyForQueryMessage = {
name: 'readyForQuery',
length: 5,
status: 'I'
};
var expectedCommandCompleteMessage = {
length: 13,
text: "SELECT 3"
};
var emptyRowDescriptionBuffer = new BufferList()
.addInt16(0) //number of fields
.join(true,'T');
var expectedEmptyRowDescriptionMessage = {
name: 'rowDescription',
length: 6,
fieldCount: 0
};
var expectedOneRowMessage = {
name: 'rowDescription',
length: 27,
fieldCount: 1
};
var expectedTwoRowMessage = {
name: 'rowDescription',
length: 53,
fieldCount: 2
};
var testForMessage = function(buffer, expectedMessage) {
var lastMessage = {};
test('recieves and parses ' + expectedMessage.name, function() {
var stream = new MemoryStream();
var client = new Connection({
stream: stream
});
client.connect();
client.on('message',function(msg) {
lastMessage = msg;
});
client.on(expectedMessage.name, function() {
client.removeAllListeners(expectedMessage.name);
});
stream.emit('data', buffer);
assert.same(lastMessage, expectedMessage);
});
return lastMessage;
};
var plainPasswordBuffer = buffers.authenticationCleartextPassword();
var md5PasswordBuffer = buffers.authenticationMD5Password();
var expectedPlainPasswordMessage = {
name: 'authenticationCleartextPassword'
};
var expectedMD5PasswordMessage = {
name: 'authenticationMD5Password'
};
var notificationResponseBuffer = buffers.notification(4, 'hi', 'boom');
var expectedNotificationResponseMessage = {
name: 'notification',
processId: 4,
channel: 'hi',
payload: 'boom'
};
test('Connection', function() {
testForMessage(authOkBuffer, expectedAuthenticationOkayMessage);
testForMessage(plainPasswordBuffer, expectedPlainPasswordMessage);
var msg = testForMessage(md5PasswordBuffer, expectedMD5PasswordMessage);
test('md5 has right salt', function() {
assert.equalBuffers(msg.salt, Buffer([1,2,3,4]));
});
testForMessage(paramStatusBuffer, expectedParameterStatusMessage);
testForMessage(backendKeyDataBuffer, expectedBackendKeyDataMessage);
testForMessage(readyForQueryBuffer, expectedReadyForQueryMessage);
testForMessage(commandCompleteBuffer,expectedCommandCompleteMessage);
testForMessage(notificationResponseBuffer, expectedNotificationResponseMessage);
test('empty row message', function() {
var message = testForMessage(emptyRowDescriptionBuffer, expectedEmptyRowDescriptionMessage);
test('has no fields', function() {
assert.equal(message.fields.length, 0);
});
});
test("no data message", function() {
testForMessage(Buffer([0x6e, 0, 0, 0, 4]), {
name: 'noData'
});
});
test('one row message', function() {
var message = testForMessage(oneRowDescBuff, expectedOneRowMessage);
test('has one field', function() {
assert.equal(message.fields.length, 1);
});
test('has correct field info', function() {
assert.same(message.fields[0], {
name: 'id',
tableID: 1,
columnID: 2,
dataTypeID: 3,
dataTypeSize: 4,
dataTypeModifier: 5,
format: 'text'
});
});
});
test('two row message', function() {
var message = testForMessage(twoRowBuf, expectedTwoRowMessage);
test('has two fields', function() {
assert.equal(message.fields.length, 2);
});
test('has correct first field', function() {
assert.same(message.fields[0], {
name: 'bang',
tableID: 1,
columnID: 2,
dataTypeID: 3,
dataTypeSize: 4,
dataTypeModifier: 5,
format: 'text'
})
});
test('has correct second field', function() {
assert.same(message.fields[1], {
name: 'whoah',
tableID: 10,
columnID: 11,
dataTypeID: 12,
dataTypeSize: 13,
dataTypeModifier: 14,
format: 'text'
});
});
});
test('parsing rows', function() {
test('parsing empty row', function() {
var message = testForMessage(emptyRowFieldBuf, {
name: 'dataRow',
fieldCount: 0
});
test('has 0 fields', function() {
assert.equal(message.fields.length, 0);
});
});
test('parsing data row with fields', function() {
var message = testForMessage(oneFieldBuf, {
name: 'dataRow',
fieldCount: 1
});
test('has 1 field', function() {
assert.equal(message.fields.length, 1);
});
test('field is correct', function() {
assert.equal(message.fields[0],'test');
});
});
});
test('notice message', function() {
//this uses the same logic as error message
var buff = buffers.notice([{type: 'C', value: 'code'}]);
testForMessage(buff, {
name: 'notice',
code: 'code'
});
});
test('error messages', function() {
test('with no fields', function() {
var msg = testForMessage(buffers.error(),{
name: 'error'
});
});
test('with all the fields', function() {
var buffer = buffers.error([{
type: 'S',
value: 'ERROR'
},{
type: 'C',
value: 'code'
},{
type: 'M',
value: 'message'
},{
type: 'D',
value: 'details'
},{
type: 'H',
value: 'hint'
},{
type: 'P',
value: '100'
},{
type: 'p',
value: '101'
},{
type: 'q',
value: 'query'
},{
type: 'W',
value: 'where'
},{
type: 'F',
value: 'file'
},{
type: 'L',
value: 'line'
},{
type: 'R',
value: 'routine'
},{
type: 'Z', //ignored
value: 'alsdkf'
}]);
testForMessage(buffer,{
name: 'error',
severity: 'ERROR',
code: 'code',
message: 'message',
detail: 'details',
hint: 'hint',
position: '100',
internalPosition: '101',
internalQuery: 'query',
where: 'where',
file: 'file',
line: 'line',
routine: 'routine'
});
});
});
test('parses parse complete command', function() {
testForMessage(parseCompleteBuffer, {
name: 'parseComplete'
});
});
test('parses bind complete command', function() {
testForMessage(bindCompleteBuffer, {
name: 'bindComplete'
});
});
test('parses portal suspended message', function() {
testForMessage(portalSuspendedBuffer, {
name: 'portalSuspended'
});
});
});
//since the data message on a stream can randomly divide the incomming
//tcp packets anywhere, we need to make sure we can parse every single
//split on a tcp message
test('split buffer, single message parsing', function() {
var fullBuffer = buffers.dataRow([null, "bang", "zug zug", null, "!"]);
var stream = new MemoryStream();
stream.readyState = 'open';
var client = new Connection({
stream: stream
});
client.connect();
var message = null;
client.on('message', function(msg) {
message = msg;
});
test('parses when full buffer comes in', function() {
stream.emit('data', fullBuffer);
assert.lengthIs(message.fields, 5);
assert.equal(message.fields[0], null);
assert.equal(message.fields[1], "bang");
assert.equal(message.fields[2], "zug zug");
assert.equal(message.fields[3], null);
assert.equal(message.fields[4], "!");
});
var testMessageRecievedAfterSpiltAt = function(split) {
var firstBuffer = new Buffer(fullBuffer.length-split);
var secondBuffer = new Buffer(fullBuffer.length-firstBuffer.length);
fullBuffer.copy(firstBuffer, 0, 0);
fullBuffer.copy(secondBuffer, 0, firstBuffer.length);
stream.emit('data', firstBuffer);
stream.emit('data', secondBuffer);
assert.lengthIs(message.fields, 5);
assert.equal(message.fields[0], null);
assert.equal(message.fields[1], "bang");
assert.equal(message.fields[2], "zug zug");
assert.equal(message.fields[3], null);
assert.equal(message.fields[4], "!");
};
test('parses when split in the middle', function() {
testMessageRecievedAfterSpiltAt(6);
});
test('parses when split at end', function() {
testMessageRecievedAfterSpiltAt(2);
});
test('parses when split at beginning', function() {
testMessageRecievedAfterSpiltAt(fullBuffer.length - 2);
testMessageRecievedAfterSpiltAt(fullBuffer.length - 1);
testMessageRecievedAfterSpiltAt(fullBuffer.length - 5);
});
});
test('split buffer, multiple message parsing', function() {
var dataRowBuffer = buffers.dataRow(['!']);
var readyForQueryBuffer = buffers.readyForQuery();
var fullBuffer = new Buffer(dataRowBuffer.length + readyForQueryBuffer.length);
dataRowBuffer.copy(fullBuffer, 0, 0);
readyForQueryBuffer.copy(fullBuffer, dataRowBuffer.length, 0);
var messages = [];
var stream = new MemoryStream();
var client = new Connection({
stream: stream
});
client.connect();
client.on('message', function(msg) {
messages.push(msg);
});
var verifyMessages = function() {
assert.lengthIs(messages, 2);
assert.same(messages[0],{
name: 'dataRow',
fieldCount: 1
});
assert.equal(messages[0].fields[0],'!');
assert.same(messages[1],{
name: 'readyForQuery'
});
messages = [];
};
//sanity check
test('recieves both messages when packet is not split', function() {
stream.emit('data', fullBuffer);
verifyMessages();
});
var splitAndVerifyTwoMessages = function(split) {
var firstBuffer = new Buffer(fullBuffer.length-split);
var secondBuffer = new Buffer(fullBuffer.length-firstBuffer.length);
fullBuffer.copy(firstBuffer, 0, 0);
fullBuffer.copy(secondBuffer, 0, firstBuffer.length);
stream.emit('data', firstBuffer);
stream.emit('data', secondBuffer);
};
test('recieves both messages when packet is split', function() {
test('in the middle', function() {
splitAndVerifyTwoMessages(11);
});
test('at the front', function() {
splitAndVerifyTwoMessages(fullBuffer.length-1);
splitAndVerifyTwoMessages(fullBuffer.length-4);
splitAndVerifyTwoMessages(fullBuffer.length-6);
});
test('at the end', function() {
splitAndVerifyTwoMessages(8);
splitAndVerifyTwoMessages(1);
});
});
});