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// @tags: [requires_profiling]
(function() {
"use strict";
const conn = MongoRunner.runMongod();
const uri = "mongodb://" + conn.host + "/test";
const tests = [];
// Asserts that system.profile contains only entries
// with application.name = appname (or undefined)
function assertProfileOnlyContainsAppName(db, appname) {
const res = db.system.profile.distinct("appName");
assert(res.length > 0, "system.profile does not contain any docs");
if (res.length > 1 || res.indexOf(appname) === -1) {
// Dump collection.
print("dumping db.system.profile");
db.system.profile.find().forEach((doc) => printjsononeline(doc));
doassert(`system.profile expected to only have appName=${appname}` +
` but found ${tojson(res)}`);
}
}
tests.push(function testDefaultAppName() {
const db = new Mongo(uri).getDB("test");
assert.commandWorked(db.coll.insert({}));
assertProfileOnlyContainsAppName(db, "MongoDB Shell");
});
tests.push(function testAppName() {
const db = new Mongo(uri + "?appName=TestAppName").getDB("test");
assert.commandWorked(db.coll.insert({}));
assertProfileOnlyContainsAppName(db, "TestAppName");
});
tests.push(function testMultiWordAppName() {
const db = new Mongo(uri + "?appName=Test%20App%20Name").getDB("test");
assert.commandWorked(db.coll.insert({}));
assertProfileOnlyContainsAppName(db, "Test App Name");
});
tests.push(function testLongAppName() {
// From MongoDB Handshake specification:
// The client.application.name cannot exceed 128 bytes. MongoDB will return an error if
// these limits are not adhered to, which will result in handshake failure. Drivers MUST
// validate these values and truncate driver provided values if necessary.
const longAppName = "a".repeat(129);
assert.throws(() => new Mongo(uri + "?appName=" + longAppName));
// But a 128 character appname should connect without issue.
const notTooLongAppName = "a".repeat(128);
const db = new Mongo(uri + "?appName=" + notTooLongAppName).getDB("test");
assert.commandWorked(db.coll.insert({}));
assertProfileOnlyContainsAppName(db, notTooLongAppName);
});
tests.push(function testLongAppNameWithMultiByteUTF8() {
// Each epsilon character is two bytes in UTF-8.
const longAppName = "\u0190".repeat(65);
assert.throws(() => new Mongo(uri + "?appName=" + longAppName));
// But a 128 character appname should connect without issue.
const notTooLongAppName = "\u0190".repeat(64);
const db = new Mongo(uri + "?appName=" + notTooLongAppName).getDB("test");
assert.commandWorked(db.coll.insert({}));
assertProfileOnlyContainsAppName(db, notTooLongAppName);
});
tests.forEach((test) => {
const db = conn.getDB("test");
db.dropDatabase();
// Entries in db.system.profile have application name.
db.setProfilingLevel(2);
test();
});
MongoRunner.stopMongod(conn);
})();
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