How to use output buffering inside PHPUnit test?

Question

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?

Havelock · Accepted Answer · 2015-03-18 13:00:55Z

11

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.

answered Mar 18, 2015 at 13:00

Havelock

7,0044 gold badges37 silver badges42 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

user1578653 Over a year ago

Thanks! I had just worked that one out for myself, and was coming back here to post the answer!

Havelock Over a year ago

@user1578653, are downloading the file from an external website, executing HTTP request? (absolutely irrelevant to the issue in your question, just out of curiosity)

user1578653 Over a year ago

nope, in $viewer->downloadById() I am retrieving a BLOB from an Oracle database (which could be remote) and printing out the contents (after sending headers).

Collectives™ on Stack Overflow

How to use output buffering inside PHPUnit test?

1 Answer 1

3 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related