CODEWITHSUNDEEP
phpunit-testingtestingphpunit
user1578653
user1578653

Reputation: 5028

How to use output buffering inside PHPUnit test?

I'm using PHPUnit to test a function which downloads a file. I want to test that the correct file is downloaded and so my idea was to check the output of the function. I'm trying to use output buffering:

ob_start();
$viewer->downloadById($fileId);
$output = ob_get_flush();
$this->assertEquals($expectedFileContents,$output);

The test passes/fails when it should, which is good. My issue is that the contents of the output buffer is also printed to the console. How do I hide this?

Upvotes: 6

Views: 4702

Answers (1)

Havelock
Havelock

Reputation: 6968

Use ob_get_clean() instead of ob_get_flush(). The former will remove the buffer without printing it and return its contents. The latter will do the same and print the contents of the buffer.

Upvotes: 11

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