How to unittest php array with different charset?

Question

Im trying to assert a function in which mycode converts Windows-1252 code to UTF-8 Example as follows:

function test($article){
       $result = mb_convert_encoding($article[0]['Description'], "UTF-8", "Windows-1252");
retrun $result;
}

I'm trying to input a Windows-1252 and assert its changes but its not working.

My Unititest:

$convertedArray = array(array('Description' => "an example pain— if you’re"));
$someString = $this->getMockBuilder('\Client')
            ->setMethods(['getArticle'])
            ->getMock();
        $someString->expects($this->once())
            ->method('getArticle')
            ->with('12345')
            ->will($this->returnValue($convertedArray));

        \client::set($someString);

Or

In simple: Im trying to input $str = "an example painâ€” if youâ€™re"; and expect the function to convet it to UTF-8 and return "an example pain— if you’re" how can i do that?

Im getting the following error:

--- Expected
+++ Actual
@@ @@
 Array (
-    'record' => 'an example pain— if you’re'
+    'record' => 'an example painÃ¢â‚¬â€� if youÃ¢â‚¬â„¢re'
 )

If you create a file/fixture with the text and save it with Win1252 encoding, then do a file_get_contents() and proceed with the unit test? — Loek
– Loek, Commented May 29, 2018 at 14:25
I tried with file.. but haven’t tried with reading using file_get_contents(); used fileread operation instead. — DonOfDen
– DonOfDen, Commented May 29, 2018 at 16:52
Cool! I remember file_get_contents() to be binary safe so it should work. If not, let me know and I'll search further :) — Loek
– Loek, Commented May 29, 2018 at 16:54
I feel the problem is because of the Array() :( when we add to array it converts it as string so I can’t abld to convert back. If possible try my code and see if it works for array. Thanks. — DonOfDen
– DonOfDen, Commented May 29, 2018 at 17:10

Sammitch · Accepted Answer · 2018-05-29 17:59:54Z

3

If you want to guarantee an encoding for your test strings do the following:

Make sure you know what encoding you're writing the code in, eg: UTF8.
- This will be in your editor settings.
Convert your test string from that encoding to your target.
- $test_1252 = mb_convert_encoding($test_utf8, 'cp-1252', 'utf-8');
Encode the test string in something 7-bit-safe, like base64.
- echo base64_encode($test_1252);

Now you have a string that you can safely copy/paste in/out of whatever file you want while maintaining its encoding.

eg:

$test_utf8 = "an example pain— if you’re";
$test_1252 = mb_convert_encoding($test_utf8, 'cp1252', 'utf-8');

var_dump(
    $test_utf8,
    $test_1252,
    bin2hex($test_utf8),
    bin2hex($test_1252),
    base64_encode($test_utf8),
    base64_encode($test_1252)
);

Output:

string(30) "an example pain— if you’re"
string(26) "an example pain� if you�re"
string(60) "616e206578616d706c65207061696ee2809420696620796f75e280997265"
string(52) "616e206578616d706c65207061696e9720696620796f75927265"
string(40) "YW4gZXhhbXBsZSBwYWlu4oCUIGlmIHlvdeKAmXJl"
string(36) "YW4gZXhhbXBsZSBwYWlulyBpZiB5b3WScmU="

answered May 29, 2018 at 17:59

Sammitch

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1 Comment

Loek Over a year ago

Answers like this make me wish there was a 'Save for later reference' button on SO :)

Loek · Accepted Answer · 2018-05-30 07:14:26Z

1

Glad I coulp help! Answer for reference:

It seems that you changed up the parameters of the mb_convert_encoding() function, unfortunately.

// Change this
$result = mb_convert_encoding($article[0]['Description'], "UTF-8", "Windows-1252");

// To this
$result = mb_convert_encoding($article[0]['Description'], "Windows-1252", "UTF-8");

See your expected working code in action here.

answered May 30, 2018 at 7:14

Loek

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