Parallel execution issues

[zarashima]

Hi all,

So far I’ve followed all necessary setup for parallel execution:

• Use ThreadLocal to get and set driver instance
• Add required capabilities: http://appium.io/docs/en/advanced-concepts/parallel-tests/
• I use TestNG, so I also add parallel=tests and thread count value also

My used libraries:

• Appium 1.15.1
• Java client: 6.1.0

However, upon parallel execution, I still face an issue that the Appium commands frequently perform on the wrong devices, and it occurs very frequently. Imagine I have these simple steps:

• Login
• Purchase order

Sometimes after ‘purchase order’ steps are performed on device 2 because device 1 has completed ‘Login’ step, sometimes it doesn’t

I don’t know what else should I do to achieve proper parallel execution.

Do you guys have any ideas why?

[mykola-mokhnach]

appium/appium/blob/master/docs/en/advanced-concepts/parallel-tests.md

[zarashima]

I followed that guide already :). Still can’t make executed steps happen correctly

[Aleksei]

It is problem in your code. Some variables you use are not thread safe and mix happens. Add more logs on problematic steps. What values have variables while executing on X device. Make each test thread log starting with same string text so you can differ under what test it is.

[zarashima]

Thanks, my fault. Adjust my code and it is working well