Adds support for incompleted tests

tests/Features/Incompleted.php

@@ -0,0 +1,19 @@
+<?php
+
+it('is incompleted');
+
+it('is incompleted even with method calls like skip')->skip(false);
+
+it('is incompleted even with method calls like group')->group('wtv');
+
+it('is not incompleted because of expect')->expect(true)->toBeTrue();
+
+it('is not incompleted because of assert')->assertTrue(true);
+
+it('is not incompleted because of test with no assertions', function () {
+    // ...
+});
+
+it('is not incompleted because of test with assertions', function () {
+    expect(true)->toBeTrue();
+});