logo
down
shadow

Run Parallel and Sequential tests


Run Parallel and Sequential tests

By : Irakli Avalishvili
Date : November 17 2020, 04:28 AM
With these it helps I have a setup where few of the tests are written to run in parallel and the rest of them are written to be run sequentially. We are moving from running these tests from run in sequence to run in parallel. Since we cannot move all of these tests at once, we need to be able to run these in both ways. The tests written to be run in parallel are using different baseTest classes and different remote drivers. Can someone please suggest if there is a way to setup the testsuite in a way to run them both. , Yes you can. Setup two tests in the same suite xml eg.
code :
<suite name="Suite1" verbose="1" >

  <test name="ParallelGroup" parallel="methods"  >
    <classes>
        <class name="testngtests.TestParallel"/>
    </classes>
  </test>

  <test name="Sequential" parallel="false"  >
    <classes>
        <class name="testngtests.copy.TestSeq"></class>
    </classes>
  </test>
</suite>


Share : facebook icon twitter icon
Calling sequential on parallel stream makes all previous operations sequential

Calling sequential on parallel stream makes all previous operations sequential


By : rckchen
Date : March 29 2020, 07:55 AM
may help you . Switching the stream from parallel() to sequential() worked in the initial Stream API design, but caused many problems and finally the implementation was changed, so it just turns the parallel flag on and off for the whole pipeline. The current documentation is indeed vague, but it was improved in Java-9:
code :
new Random().ints(100).boxed()
        .parallel()
        .map(this::slowOperation)
        .collect(Collectors.toList())
        // Start new stream here
        .stream()
        .map(Function.identity())//some fast operation, but must be in single thread
        .collect(Collectors.toSet());
Getting sequential logs while executing tests in parallel

Getting sequential logs while executing tests in parallel


By : Gilberto Joel Banqui
Date : March 29 2020, 07:55 AM
wish helps you When you enable parallel then there will be some time between the beforeInvocation and afterInvocation in the logs as you have noticed and that difference in time varies from test to test hence the staggered output.
If what you want is the start and end messages next to each other then you are basically throwing out the time factor and as such can simply add your beforeInvocation message to the afterInvocation method as follows:
code :
public class TestExecutionListener implements IInvokedMethodListener {

    @Override
    public void beforeInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
    }

    @Override
    public void afterInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
        System.out.println("Testing : " + iInvokedMethod.getTestMethod().getMethodName());
        System.out.println("Successfully Tested : " + iInvokedMethod.getTestMethod().getMethodName());
    }
}
public class TestExecutionListener implements IInvokedMethodListener {
    private Map<Integer, Deque<String>> logsMap = new HashMap<Integer, Deque<String>>();

    public void log(IInvokedMethod iInvokedMethod, String log) {
        if(!logsMap.containsKey(iInvokedMethod.getId())) {
            logsMap.put(iInvokedMethod.getId(), new ArrayDeque<String>());
        }

        logsMap.get(iInvokedMethod.getId()).add(log);
    }

    @Override
    public void beforeInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
        log(iInvokedMethod, "Testing : " + iInvokedMethod.getTestMethod().getMethodName());
    }

    @Override
    public void afterInvocation(IInvokedMethod iInvokedMethod, ITestResult iTestResult) {
        log(iInvokedMethod, "Successfully Tested : " + iInvokedMethod.getTestMethod().getMethodName());

        Deque<String> logs = logsMap.get(iInvokedMethod.getId());
        while(!logs.isEmpty()) {
            System.out.println(logs.poll());
        }
    }
}
Approx. of π used to compare Sequential v/s Parallel speeds in java. Why .parallel() was slower?

Approx. of π used to compare Sequential v/s Parallel speeds in java. Why .parallel() was slower?


By : Angela H
Date : March 29 2020, 07:55 AM
will be helpful for those in need I get even worse results running in parallel on my machine (3.0 GHz Intel Core i7, two cores, four threads):
code :
sequential: PI ~ 3.14175124 calculated in  4952 msecs
  parallel: PI ~ 3.14167776 calculated in 21320 msecs
long count = LongStream.rangeClosed(1, NUM_SAMPLES)
                       .parallel()
                       .filter(e -> {
                           ThreadLocalRandom cur = ThreadLocalRandom.current();
                           double x = cur.nextDouble();
                           double y = cur.nextDouble();
                           return x * x + y * y < 1;
                       })
                       .count();
sequential2: PI ~ 3.14169156 calculated in 1171 msecs
  parallel2: PI ~ 3.14166796 calculated in  648 msecs
NUM_SAMPLES = 100_000_000

sequential:  PI ~ 3.14175124 calculated in    4952 msecs
parallel:    PI ~ 3.14167776 calculated in   21320 msecs
sequential2: PI ~ 3.14169156 calculated in    1171 msecs
parallel2:   PI ~ 3.14166796 calculated in     648 msecs

NUM_SAMPLES = 1_000_000_000

sequential:  PI ~ 3.141572896 calculated in  47730 msecs
parallel:    PI ~ 3.141543836 calculated in 228969 msecs
sequential2: PI ~ 3.1414865   calculated in  12843 msecs
parallel2:   PI ~ 3.141635704 calculated in   7953 msecs
Running JUnit5 Test in Parallel But Want To Leave Some Tests Sequential

Running JUnit5 Test in Parallel But Want To Leave Some Tests Sequential


By : archna
Date : March 29 2020, 07:55 AM
wish helps you You most likely want to use @ResourceLock annotation on tests https://junit.org/junit5/docs/snapshot/user-guide/#writing-tests-parallel-execution-synchronization
PowerShell Parallel vs Sequential Jobs - Sequential is faster?

PowerShell Parallel vs Sequential Jobs - Sequential is faster?


By : Jin Woo Shin
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further When you use a Powershell job, Powershell creates a new session to run the scriptblock in.
Try this:
Related Posts Related Posts :
  • How to add extra root nodes for not well formed XML structure?
  • which Uncrustify setting replaces blank lines with indenting spaces?
  • mac OSX Lion Homebrew install curl (77)
  • In Project Euler 47, why is 2^2 considered a prime number distinct from 2?
  • browserstack requesting localhost:45691
  • What was the real reason why Google is chosing RenderScript instead of OpenCL?
  • Mandrill Inbound Email routing
  • Prevent checkElementIndex() Guava function from concatenating additional response to existing error message
  • Arduino and Raspberry Pi Serial communication + multiple variables
  • convert a 960 grid based site to responsive
  • Should it be possible to have more than one DocuSign account (DEMO) with the same email address?
  • Is it possible to limit ammount of concurrent builds in Travis-CI
  • Selecting languages with specific ISO code
  • Deprecated vs Unsupported SDK
  • Verifying ClearCase files have been labeled properly
  • What's the difference between "Bag of Words" and "Bag of features" in computer vision?
  • Is there a way to tell Serde to use a struct field as a map's key?
  • ld:framework not found sfml
  • nice, go-idiomatic way of using a shared map
  • IzPack ChmodInstallerListener.jar
  • Breaking down tasks of user stories between developer and QA
  • Dropwizard service not starting properly
  • How to override devise invitable actions
  • Coded UI. How can I change TimeOut in Find() method
  • Why when I click on the update button error TypeError: r is undefined happen?
  • Visio Component Diagram - Required Interface
  • Lucene: fast(er) to get docs in bulk?
  • can I use windows 8 font (Segoe UI)for my web app?
  • Using Flask Session in Gevent Socket-IO
  • Difference between recommended and suggested cookbooks
  • Dynamic Forms (Formsets) in Flask / WTForms?
  • Image Servlet doesn't want to show image in browser (FireFox, IE..) but in Eclipse browser works?
  • Logback - how to get each logger logging to a separate log file?
  • In Crystal Reports, how do I keep a row from printing if the value is null?
  • iOS 6 Audio multi-route - use external microphone AND internal speaker simultaneously
  • Adding Comments in JasperReports template (jrxml)
  • Servicestack mini profiler
  • Logging with Castle Windsor, the Logging Facility and log4net
  • Subscribe for instances list update in GCE autoscaled group
  • Generating a unique QR code for each Order in Woocommerce
  • libvirtError: internal error Cannot find suitable CPU model for given data
  • CKEditor changing content automatically
  • Pass double pointer in a struct to CUDA
  • Apache Camel for TCP based streamer
  • How to convert old CDC mainframe PRUs to bytes?
  • compilation on Blue Gene Q - ELF header
  • Set border of a jasper subreport having a title and a detail band
  • How to highlight tpl file?
  • cygwin: Starting cron as a service (access denied)
  • Can't access to the object after Importing from SVG
  • Hindi Font with DOMPDF in Codeigniter
  • XMLHttpRequest in a ContentScript from the Firefox SDK (Cross-Domain)
  • Adding javascript file or block to front page only drupal-7
  • No Emulator lists to deploy windows phone app
  • Redirection from component to view in joomla 2.5.8
  • What are possible solution for periodic folder sync between machines on linux?
  • Is there any status of review comments in gerrit
  • How can I permanently customize window size/buffer size of Command Prompt in Windows 7?
  • how to login in magento admin using coding
  • How to get all courses on moodle?
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org