How can PHPUnit expectations or prophecies be used to test function calls in PHP?

PHPUnit expectations or prophecies can be used to test function calls in PHP by setting up expectations for the function calls before running the test. This allows you to specify the number of times a function should be called, with which arguments, and what it should return. This helps ensure that your functions are being called correctly and producing the expected results during testing. 

// Example of testing a function call using PHPUnit expectations
public function testFunctionCall()
{
    $mock = $this->getMockBuilder('ClassName')->getMock();

    $mock->expects($this->once())
         ->method('methodName')
         ->with($this->equalTo('argument1'))
         ->willReturn('expectedResult');

    $result = $mock->methodName('argument1');

    $this->assertEquals('expectedResult', $result);
}

Keywords

PHPUnit expectations prophecies test function calls PHP

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