[MDL-49713] Unit tests on code that sends headers fails due to phpunit_util::bootstrap_moodle_info() - Moodle Tracker

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Affected Branches:
MOODLE_28_STABLE
Workaround:

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Adding ob_start(); at the start of phpunit_util::bootstrap_moodle_info(), or just before its called in lib/phpunit/bootstrap.php, allows the tests to run (Although you don't get any output until they've completed as a result).

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Adding ob_start(); at the start of phpunit_util::bootstrap_moodle_info() , or just before its called in lib/phpunit/bootstrap.php, allows the tests to run (Although you don't get any output until they've completed as a result).
Difficulty:
Easy

Steps to reproduce:

Create a PHPUnit test that covers code which calls header()
Add the @runInSeparateProcess annotation to the test, which should allow it to run without problems
Run the test

Expected result:

Actual Result:

Test fails with the message Cannot modify header information - headers already sent by (output started at \path\to\moodle\lib\phpunit\classes\util.php:299)

will be (partly) resolved by

MDL-60978 Fix Redis session tests