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Returning data from evaluate #51

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786881d
Vars in Evalute function
davidgv88 Oct 11, 2017
7fa9a48
Create unit tests
davidgv88 Oct 11, 2017
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47 changes: 47 additions & 0 deletions Tests/CasperTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -287,6 +287,53 @@ public function testEvaluate()
@unlink($filename);
}

public function testEvaluateToVar()
{
$evaluateHtml = <<<TEXT
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>test evaluate</title>
</head>
<body>
<a id="theLink" href='http://www.google.com' onclick='return confirm("are you sure")'>link to google</a>
<ul id="theList">
<li class="item">Item 1</li>
<li class="item">Item 2</li>
</ul>
</body>
</html>
TEXT;
$filename = '/tmp/test-evaluate-var.html';

file_put_contents($filename, $evaluateHtml);

$evaluate_href = <<<TEXT

var theLink = document.getElementById("theLink");

return theLink.href;
TEXT;

$evaluate_item = <<<TEXT
return document.getElementsByClassName("item").length;
TEXT;

$casper = new Casper(self::$casperBinPath);
$casper->start($filename)
->evaluateToVar('href',$evaluate_href)
->evaluateToVar('num_items',$evaluate_item)
->run();

$vars = $casper->getVars();

$this->assertContains('google.com', $vars['href']);
$this->assertEquals(2, $vars['num_items']);

@unlink($filename);
}

public function testDoubleClick()
{
$evaluateHtml = <<<TEXT
Expand Down
34 changes: 34 additions & 0 deletions src/Casper.php
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ class Casper
private $TAG_CURRENT_STATUS = '[CURRENT_STATUS]';
private $TAG_CURRENT_STATUS_TEXT = '[CURRENT_STATUS_TEXT]';
private $TAG_CURRENT_COOKIES = '[CURRENT_COOKIES]';
private $TAG_CURRENT_VARS = '[CURRENT_VARS]';

private $debug = false;
private $options = array();
Expand All @@ -35,6 +36,7 @@ class Casper
private $status;
private $statusText = '';
private $cookies = [];
private $vars = false;

public function __construct($path2casper = null, $tempDir = null)
{
Expand Down Expand Up @@ -212,6 +214,9 @@ public function start($url)
}
});
});

var vars = {};


FRAGMENT;

Expand Down Expand Up @@ -542,6 +547,22 @@ public function evaluate($function)
});
});

FRAGMENT;

$this->script .= $fragment;

return $this;
}

public function evaluateToVar($var, $function)
{
$fragment = <<<FRAGMENT
casper.then(function() {
vars.$var = casper.evaluate(function() {
$function
});
});

FRAGMENT;

$this->script .= $fragment;
Expand Down Expand Up @@ -585,6 +606,7 @@ public function run()
this.echo('$this->TAG_CURRENT_STATUS' + this.currentResponse.status);
this.echo('$this->TAG_CURRENT_STATUS_TEXT' + this.currentResponse.statusText);
this.echo('$this->TAG_CURRENT_COOKIES' + JSON.stringify(phantom.cookies));
this.echo('$this->TAG_CURRENT_VARS' + JSON.stringify(vars));
});

casper.run();
Expand Down Expand Up @@ -680,6 +702,10 @@ private function processOutput()
if (0 === strpos($outputLine, $this->TAG_CURRENT_COOKIES)) {
$this->cookies = json_decode(str_replace($this->TAG_CURRENT_COOKIES, '', $outputLine), true);
}

if (0 === strpos($outputLine, $this->TAG_CURRENT_VARS)) {
$this->vars = json_decode(str_replace($this->TAG_CURRENT_VARS, '', $outputLine), true);
}
}
}

Expand Down Expand Up @@ -739,4 +765,12 @@ public function getCookies()
{
return $this->cookies;
}

/**
* @return array
*/
public function getVars()
{
return $this->vars;
}
}