silverstripe-framework/tests/php/Dev/BacktraceTest.php

<?php

namespace SilverStripe\Dev\Tests;

use SilverStripe\Dev\Backtrace;
use SilverStripe\Dev\SapphireTest;

class BacktraceTest extends SapphireTest {

	public function testFullFuncNameWithArgsAndCustomCharLimit() {
		$func = array(
			'class' => 'MyClass',
			'type' => '->',
			'file' => 'MyFile.php',
			'line' => 99,
			'function' => 'myFunction',
			'args' => array(
				'number' => 1,
				'mylongstring' => 'more than 20 characters 1234567890',
			)
		);
		$this->assertEquals(
			'MyClass->myFunction(1,more than 20 charact...)',
			Backtrace::full_func_name($func, true, 20)
		);
	}

	public function testIgnoredFunctionArgs() {
		$bt = array(
			array(
				'type' => '->',
				'file' => 'MyFile.php',
				'line' => 99,
				'function' => 'myIgnoredGlobalFunction',
				'args' => array('password' => 'secred',)
			),
			array(
				'class' => 'MyClass',
				'type' => '->',
				'file' => 'MyFile.php',
				'line' => 99,
				'function' => 'myIgnoredClassFunction',
				'args' => array('password' => 'secred',)
			),
			array(
				'class' => 'MyClass',
				'type' => '->',
				'file' => 'MyFile.php',
				'line' => 99,
				'function' => 'myFunction',
				'args' => array('myarg' => 'myval')
			)
		);
		Backtrace::config()->update('ignore_function_args',
			array(
				array('MyClass', 'myIgnoredClassFunction'),
				'myIgnoredGlobalFunction'
			)
		);

		$filtered = Backtrace::filter_backtrace($bt);

		$this->assertEquals('<filtered>', $filtered[0]['args']['password'], 'Filters global functions');
		$this->assertEquals('<filtered>', $filtered[1]['args']['password'], 'Filters class functions');
		$this->assertEquals('myval', $filtered[2]['args']['myarg'], 'Doesnt filter other functions');
	}

}