Testing equality or nullness with PHPUnit's assertTrue() or assertFalse() should be simplified to the corresponding
dedicated assertion.
assertTrue($a === $b); assertTrue($a == $b); assertTrue($a === null); assertTrue($a !== null); assertTrue($a !== $b); assertTrue($a != $b); assertFalse($a === $b); assertFalse($a == $b);
assertEquals($a, $b); assertSame($a, $b); assertNull($a); assertNotNull($a); assertNotEquals($a, $b); assertNotSame($a, $b); assertNotEquals($a, $b); assertNotSame($a, $b);