Tests

When creating tests, please bear in mind, that every test added will add additional time during the PR runs.

So every added test will slow down PR runs.

Please also note that test runs in the CI share the system with other parallel runs. So CI tests are not a place to max out I/O, memory, or such.

So please use BULK inserts to slimline the creation of your test data. If you can use a common dataset for several tests, please use setUpAll and tearDownAll to reduce resource usage. If splitting a testsuite between read only and writing tests is necessary for this, please do so.

Testsuites

Testsuites live in js/client/modules/@arangodb/testsuites/. This folder is spidered during the startup of testing.js and all files in it are loaded automatically. Please think twice whether you need to create a new testsuite or your test will fit into one of the existing ones. All test suites need to be registered within Oskar in order to be executed during CI tests. The structure of each testsuite is as follows:

const functionsDocumentation = {
  'shell_server': 'shell server tests',
};
const optionsDocumentation = [
  '   - `skipAql`: if set to true the AQL tests are skipped',
];

const testPaths = {
  'shell_server': [ tu.pathForTesting('common/shell'), tu.pathForTesting('server/shell') ],
};

function shellServer (options) {
  // spider all testcases, including twin paths in the enterprise directory:
  let testCases = tu.scanTestPaths(testPaths.shell_server, options);
  // split the testcases by `--testBuckets` parameter
  testCases = tu.splitBuckets(options, testCases);

  // spawn the SUT, execute all tests via the `tu.runThere` function
  // alternatives are:
  // - runThere (use javascript shell exec to run the test *in* the server
  // - runInLocalArangosh (run in the very same arangosh as testing.js)
  // - runInArangosh (spawn a new arangosh, collect results via result file, more frequent process spawning)
  // - runInDriverTest implemented inside the testsuite - see testsuites/driver.js as example
  let rc = tu.performTests(opts, testCases, 'shell_client, tu.runThere, /* startStopHandlers*/ );
  // startStopHandlers can be implemented to add additional code during the startup / shutdown of the SUT:
  // - preStart - before starting the SUT, can be used to add additional params etc.
  // - postStart - invoked after the primary SUT is online. can be used to start other systems
  // - healthCheck - to be invoked after each test to check whether all is well
  // - preStop - just before the stop to do things that would hinder the shutdown
  // - postStop - after the stop to clean up things.

  // pass up eventual errors that should prohibit flushing the SUT data
  options.cleanup = options.cleanup && opts.cleanup;
  return rc;
}

// plugin hook. This is executed during loading of the modules.
exports.setup = function (testFns, defaultFns, opts, fnDocs, optionsDoc, allTestPaths) {
  // add all used testpaths, so i.e. `auto` or `find` can find the suite for single `--test` files
  Object.assign(allTestPaths, testPaths);
  // Register the testsuite itself
  testFns['shell_server'] = shellServer;
  // enable it to be ran with `./scripts/unittest all` ; if not ommit - adds the [x] in help the list.
  defaultFns.push('shell_server');
  // if your testsuite has CLI parameters, specify them including the default param here:
  opts['skipAql'] = false;

  // 
  for (var attrname in functionsDocumentation) { fnDocs[attrname] = functionsDocumentation[attrname]; }
  for (var i = 0; i < optionsDocumentation.length; i++) { optionsDoc.push(optionsDocumentation[i]); }
};

Existing Javascript tests

[permission] => tests/js/client/permissions / [server_parameters] => tests/js/client/server_parameters / [server_permissions] => client/server_permissions

This set of testsuites is here to revalidate startup parameters of arangod processes.

The testfile persists of two parts, and the file is invoked twice:

Controlling the startup parameters can be done with the getOptions part. In server_permissions this can also be used to setup data which may not be permitted during the later run:

if (getOptions === true) {
  return {
    'javascript.allow-port-testing': false
  };
}

The later part of the test may contain regular jsunity testsuites.

If you want to revalidate a parameter that is common to arangosh & arangod, you should use a test in the permission testsuite, since spawning an arangosh requires way less resources than spawning a full arangodb setup.

If your testcase requires a setup with more permissions than the testcode itself, you should use server_permissions, since it will launch the SUT twice.

You should however prefer server_parameters which will launch the SUT only once with the parameters you've provided.

You should try to use the -[non]cluster filename filters to also control whether your test is ran on cluster too to reduce computing power.

[dump*] to test dump and restore procedures

The dump family of testsuites lives in js/client/modules/@arangodb/testsuites/dump.js and orchestrates a sequence:

launching a SUT
create test data within it
dump this test data
execute some manual sanity checks on the dump files
restore it to a fresh SUT
check data

Since many create & check functions should be common to all suites, the default behavior is to enable them, and only exclude them if unsupported.

The individual files to be used are controlled by code in the testsuite like this:

  let tstFiles = {
    dumpSetup: 'dump-setup' + c.cluster + '.js',
    dumpCheckDumpFiles: 'dump-check-dump-files-encrypted.js',
    dumpCleanup: 'cleanup-nothing.js',
    dumpAgain: 'dump' + c.cluster + '.js',
    dumpTearDown: 'dump-teardown' + c.cluster + '.js',
    foxxTest: 'check-foxx.js'
  };

So tests/js/server/dump/dump-setup[-cluster].js will be invoked during setting up the first SUT. It derives all its functions from dump-setup-common.inc and only invokes them in sequence.

Revalidating will be done using dump[-cluster].js, which will obtain all its test functions from dump-test.inc.

Testdata to be used during the first create etc can be put into tests/js/server/dump.

[communication, chaos] testsuite to launch parallel load

These testsuites are intended to launch several arangosh instances, in order to generate concurrent requests.

[driver | go | java | js] run driver tests against the local testsuite

These testsuites aim to integrate the respective drivers test with testing.js, so you can easily invoke them on your workstation.

more to come...

shell_server

tests/js/server tests/js/server/aql tests/js/server/import tests/js/server/recovery tests/js/server/replication tests/js/server/replication/fuzz tests/js/server/replication/aql tests/js/server/replication/random tests/js/server/replication/ongoing tests/js/server/replication/ongoing/frompresent tests/js/server/replication/ongoing/global tests/js/server/replication/ongoing/global/spec tests/js/server/replication/static tests/js/server/replication/sync tests/js/server/backup tests/js/server/agency-restart tests/js/server/paths tests/js/server/upgrade-data tests/js/server/stress tests/js/server/resilience tests/js/server/resilience/move-view tests/js/server/resilience/failover-view tests/js/server/resilience/transactions tests/js/server/resilience/failover tests/js/server/resilience/move tests/js/server/resilience/analyzers tests/js/server/resilience/failover-failure tests/js/server/resilience/sharddist tests/js/server/export tests/js/server/shell tests/js/common/aql tests/js/common/replication tests/js/common/http tests/js/common/shell tests/js/client tests/js/client/authentication tests/js/client/permissions tests/js/client/ldap tests/js/client/server_secrets tests/js/client/wal_cleanup tests/js/client/restart tests/js/client/assets tests/js/client/assets/queuetest tests/js/client/load-balancing tests/js/client/communication tests/js/client/chaos tests/js/client/http tests/js/client/agency tests/js/client/replication2 tests/js/client/shell tests/js/client/server_permissions