babel-preset-power-assert is a Babel preset that enhances JavaScript testing with power-assert. It transforms your code to provide more informative and helpful assertion messages in test failures. This preset integrates seamlessly with popular testing frameworks, enriching your test output with visual representations of variable values and expression evaluations leading to the failed assertion. By highlighting the precise location and reason for failure, babel-preset-power-assert accelerates debugging and improves the overall developer experience.