PHPUnit assertFileEquals() Function
The assertFileEquals() function is a builtin function in PHPUnit and is used to assert whether the actual file content is exactly the same as the content of the expected file or not. This assertion will return true in the case if the expected file content is the same as the actual file content else returns false. In case of true the asserted test case got passed else test case got failed.
assertFileEquals(string $expected, string $actual[, string $message = ''])
Parameters: This function accepts three parameters as mentioned above and described below:
- $expected: This parameter is a string that represents the expected file path.
- $actual: This parameter is a string that represents the actual file path.
- $message: This parameter takes a string value. When the test case got failed this string message got displayed as an error message.
Below programs illustrate the assertFileEquals() function in PHPUnit:
PHPUnit 8.5.8 by Sebastian Bergmann and contributors. F 1 / 1 (100%) Time: 89 ms, Memory: 10.00 MB There was 1 failure: 1) GeeksPhpunitTestCase::testNegativeTestcaseForassertFileEquals actual file content is not equals to expected file content Failed asserting that file "/home/bittu/php" exists. /home/lovely/Documents/php/test.php:17 FAILURES! Tests: 1, Assertions: 1, Failures: 1.
PHPUnit 8.5.8 by Sebastian Bergmann and contributors. . 1 / 1 (100%) Time: 89 ms, Memory: 10.00 MB OK (1 test, 3 assertions)