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PHPUnit | AssertArrayHasKey () function

Syntax :
assertArrayHasKey (mixed $key, array $array [, string $message = ``]) 
Parameters < / b>: This function takes three parameters as shown in the above syntax. The parameters are described below:
  • $key : This parameter represents the name of the key that will be contained in the array.
  • $array : This parameter is the array to search for the key for.
  • $message : This parameter accepts a string value. When the test case failed, this string message was displayed as an error message.
  • The following programs illustrate the assertArrayHasKey() function: Program 1 : use PHPUnitFrameworkTestCase; class GeeksPhpunitTestCase extends TestCase {< / code> public function testNegativeTestcaseForArrayHasKey() { // array for testing $array  = array ( ` geek` = > `engineerForengineer` ,); // assert function to check if geek is an array key $this -> assertArrayHasKey ( `engineer` , $array , "Array doesn`t contains` engineer` as key " ); } }  
    ?>
    Output:
    PHPUnit 6.5. 5 by Sebastian Bergmann and contributors. F 1/1 (100%) Time: 108 ms, Memory: 4.00MB There was 1 failure: 1) GeeksPhpunitTestCase::testNegativeTestcaseForArrayHasKey Array doesn`t contains `engineer` as key Failed asserting that an array has the key` engineer`. /home/shivam/Documents/engineer/phpunit/abc.php:9 FAILURES! Tests: 1, Assertions: 1, Failures: 1. 
    Program 2 : use PHPUnitFrameworkTestCase; class GeeksPhpunitTestCase extends TestCase {< / code> public function testPositiveTestcaseForArrayHasKey() { // array for testing $array  = array ( ` engineer` = > `engineerForengineer` ,); // assert function to check if ` engineer ` array key $this -> assertArrayHasKey ( `engineer` , $array , "Array doesn`t contains` engineer` as key " ); } }  
    ?>
    Output:
    PHPUnit 6.5. 5 by Sebastian Bergmann and contributors. ... 1/1 (100%) Time: 21 ms, Memory: 4.00MB OK (1 test, 1 assertion) 
    Note: To run testcases with PHPUnit steps follows from here .
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