Elgg-Lorea-Hydra/engine/tests/phpunit/Elgg/TagsTest.php

<?php

class Elgg_TagsTest extends PHPUnit_Framework_TestCase {

	/**
	 * When providing a string to the string_to_tag_array function it should explode it based on a comma and return an array
	 */
	public function testStringToTagArrayReturnsArray() {
		
		// test if it returns an array with 1 item
		$single_tag = string_to_tag_array("a");
		$this->assertCount(1, $single_tag);		
		
		// test if it returns an array with 3 item
		$multiple_tags = string_to_tag_array("a,b,c");
		$this->assertCount(3, $multiple_tags);
	}
	
	/**
	 * When providing a non-string the string_to_tag_array function should return the original value
	 */
	public function testStringToTagArrayReturnsOriginalValue() {
		
		// test if the original value (int) 1 is returned
		$result = string_to_tag_array(1);
		$this->assertEquals(1, $result);
	}

}