## Why is this an issue?

Testing equality or nullness with PHPUnit’s `assertTrue()` or `assertFalse()` should be simplified to the corresponding dedicated assertion.

### Noncompliant code example

    assertTrue($a === $b);
    assertTrue($a == $b);
    assertTrue($a === null);
    assertTrue($a !== null);
    assertTrue($a !== $b);
    assertTrue($a != $b);
    assertFalse($a === $b);
    assertFalse($a == $b);
    assertTrue($a == true);
    assertTrue($a == false);

### Compliant solution

    assertEquals($a, $b);
    assertSame($a, $b);
    assertNull($a);
    assertNotNull($a);
    assertNotEquals($a, $b);
    assertNotSame($a, $b);
    assertNotEquals($a, $b);
    assertNotSame($a, $b);
    assertTrue($a);
    assertFalse($a);