implemented support for PHPUnit's @depends

tests/Features/Depends.php

@@ -0,0 +1,47 @@
+<?php
+
+$runCounter = 0;
+
+test('first', function () use (&$runCounter) {
+    assertTrue(true);
+    $runCounter++;
+
+    return 'first';
+});
+
+test('second', function () use (&$runCounter) {
+    assertTrue(true);
+    $runCounter++;
+
+    return 'second';
+});
+
+test('dependsOn', function () {
+    assertEquals(
+        ['first', 'second'],
+        func_get_args()
+    );
+})->dependsOn('first', 'second');
+
+test('dependsOn with ...params', function (string ...$params) {
+    assertEquals(
+        ['first', 'second'],
+        $params
+    );
+})->dependsOn('first', 'second');
+
+test('dependsOn with defined arguments', function (string $first, string $second) {
+    assertEquals('first', $first);
+    assertEquals('second', $second);
+})->dependsOn('first', 'second');
+
+test('dependsOn run test only once', function () use (&$runCounter) {
+    assertEquals(2, $runCounter);
+})->dependsOn('first', 'second');
+
+test('depends alias for dependsOn', function (string ...$params) {
+    assertEquals(
+        ['first', 'second'],
+        $params
+    );
+})->depends('first', 'second');