[Solved] What does setting parallel="tests" in TestNG XML configuration do? — Ans: Runs all test suites in parallel | Selenium Java

Selenium Java - TestNG Integration

What does setting parallel="tests" in TestNG XML configuration do?

ARuns all test suites in parallel

BRuns all test methods in all classes in parallel

CRuns all test classes in parallel, but methods sequentially

DRuns all test methods sequentially

Step-by-Step Solution

Solution:

Step 1: Understand the parallel attribute in TestNG
The parallel attribute controls what level runs in parallel: methods, tests, classes, or suites.
Step 2: Analyze parallel="tests" behavior
Setting parallel="tests" runs all <test> tags in parallel, but inside each test, classes and methods run sequentially.
Final Answer:
Runs all test suites in parallel -> Option A
Quick Check:
parallel="tests" = Tests parallel, classes and methods sequential [OK]

Quick Trick: parallel="tests" runs tests parallel, classes and methods sequential [OK]

Common Mistakes:

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What does setting parallel="tests" in TestNG XML configuration do?