[Solved] What will happen if you run npx cypress run --headless in your terminal? — Ans: Tests run in the background without showing the browser UI | Cypress

Cypress - CI/CD and Reporting

What will happen if you run npx cypress run --headless in your terminal?

ACypress opens the browser window and runs tests interactively

BTests run in the background without showing the browser UI

CTests fail because --headless is not a valid option

DCypress opens a GUI to select tests manually

Step-by-Step Solution

Solution:

Step 1: Understand the effect of --headless flag
The --headless flag runs tests without opening the browser window, so tests run in the background.
Step 2: Match options with expected behavior
Cypress opens the browser window and runs tests interactively and D describe interactive modes, which do not happen with --headless. Tests fail because --headless is not a valid option is incorrect because --headless is valid.
Final Answer:
Tests run in the background without showing the browser UI -> Option B
Quick Check:
--headless = background test run [OK]

Quick Trick: Headless runs tests silently without UI [OK]

Common Mistakes:

Master "CI/CD and Reporting" in Cypress

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More Cypress Quizzes

What will happen if you run npx cypress run --headless in your terminal?