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streaming_test.js
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streaming_test.js
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var mongodb = process.env['TEST_NATIVE'] != null ? require('../lib/mongodb').native() : require('../lib/mongodb').pure();
var testCase = require('../deps/nodeunit').testCase,
debug = require('util').debug,
inspect = require('util').inspect,
nodeunit = require('../deps/nodeunit'),
gleak = require('../tools/gleak'),
Db = mongodb.Db,
Cursor = mongodb.Cursor,
Collection = mongodb.Collection,
Server = mongodb.Server;
var MONGODB = 'integration_tests';
var client = new Db(MONGODB, new Server("127.0.0.1", 27017, {auto_reconnect: true, poolSize: 4}), {native_parser: (process.env['TEST_NATIVE'] != null)});
// Define the tests, we want them to run as a nested test so we only clean up the
// db connection once
var tests = testCase({
setUp: function(callback) {
client.open(function(err, db_p) {
if(numberOfTestsRun == Object.keys(tests).length) {
// If first test drop the db
client.dropDatabase(function(err, done) {
callback();
});
} else {
return callback();
}
});
},
tearDown: function(callback) {
numberOfTestsRun = numberOfTestsRun - 1;
// Drop the database and close it
if(numberOfTestsRun <= 0) {
// client.dropDatabase(function(err, done) {
client.close();
callback();
// });
} else {
client.close();
callback();
}
},
shouldStreamRecordsCallsDataTheRightNumberOfTimes : function(test) {
client.createCollection('test_stream_records', function(err, collection) {
test.ok(collection instanceof Collection);
collection.insert([{'a':1}, {'b' : 2}, {'c' : 3}, {'d' : 4}, {'e' : 5}], {safe:true}, function(err, ids) {
var stream = collection.find({}, {'limit' : 3}).streamRecords();
var callsToEnd = 0;
stream.on('end', function() {
test.done();
});
var callsToData = 0;
stream.on('data',function(data){
callsToData += 1;
test.ok(callsToData <= 3);
});
});
});
},
shouldStreamRecordsCallsEndTheRightNumberOfTimes : function(test) {
client.createCollection('test_stream_records', function(err, collection) {
test.ok(collection instanceof Collection);
collection.insert([{'a':1}, {'b' : 2}, {'c' : 3}, {'d' : 4}, {'e' : 5}], {safe:true}, function(err, ids) {
collection.find({}, {'limit' : 3}, function(err, cursor) {
var stream = cursor.streamRecords(function(er,item) {});
var callsToEnd = 0;
stream.on('end', function() {
callsToEnd += 1;
test.equal(1, callsToEnd);
setTimeout(function() {
// Let's close the db
if (callsToEnd == 1) {
test.done();
}
}.bind(this), 1000);
});
stream.on('data',function(data){ /* nothing here */ });
});
});
});
},
shouldStreamDocumentsWithLimitForFetching : function(test) {
var docs = []
for(var i = 0; i < 3000; i++) {
docs.push({'a':i})
}
client.createCollection('test_streaming_function_with_limit_for_fetching', function(err, collection) {
test.ok(collection instanceof Collection);
collection.insertAll(docs, {safe:true}, function(err, ids) {
collection.find({}, function(err, cursor) {
// Execute find on all the documents
var stream = cursor.streamRecords({fetchSize:1000});
var callsToEnd = 0;
stream.on('end', function() {
test.done();
});
var callsToData = 0;
stream.on('data',function(data){
callsToData += 1;
test.ok(callsToData <= 3000);
});
});
});
});
},
noGlobalsLeaked : function(test) {
var leaks = gleak.detectNew();
test.equal(0, leaks.length, "global var leak detected: " + leaks.join(', '));
test.done();
}
})
// Stupid freaking workaround due to there being no way to run setup once for each suite
var numberOfTestsRun = Object.keys(tests).length;
// Assign out tests
module.exports = tests;