Теперь при передаче запроса как json, закодированный в теле, он автоматически парсится

tests/codeception/api/functional/authserver/AuthorizationCest.php

@@ -38,6 +38,17 @@ class AuthorizationCest {
         $this->testSuccessResponse($I);
     }
 
+    public function byNamePassedViaPOSTBody(FunctionalTester $I) {
+        $I->wantTo('authenticate by username and password sent via post body');
+        $this->route->authenticate(json_encode([
+            'username' => 'admin',
+            'password' => 'password_0',
+            'clientToken' => Uuid::uuid4()->toString(),
+        ]));
+
+        $this->testSuccessResponse($I);
+    }
+
     public function byEmailWithEnabledTwoFactorAuth(FunctionalTester $I) {
         $I->wantTo('get valid error by authenticate account with enabled two factor auth');
         $this->route->authenticate([

tests/codeception/api/functional/mojang/UsernamesToUuidsCest.php

@@ -98,17 +98,6 @@ class UsernamesToUuidsCest {
         ]);
     }
 
-    public function passWrongPostBody(FunctionalTester $I) {
-        $I->wantTo('get specific response when pass invalid json string');
-        $this->route->uuidsByUsernames('wrong-json');
-        $I->canSeeResponseCodeIs(400);
-        $I->canSeeResponseIsJson();
-        $I->canSeeResponseContainsJson([
-            'error' => 'IllegalArgumentException',
-            'errorMessage' => 'Passed array of profile names is an invalid JSON string.',
-        ]);
-    }
-
     private function validateFewValidUsernames(FunctionalTester $I) {
         $I->canSeeResponseCodeIs(200);
         $I->canSeeResponseIsJson();

tests/codeception/api/unit/request/RequestParserTest.php

@@ -0,0 +1,20 @@
+<?php
+namespace tests\codeception\api\unit\request;
+
+use api\request\RequestParser;
+use tests\codeception\api\unit\TestCase;
+
+class RequestParserTest extends TestCase {
+
+    public function testParse() {
+        $parser = new RequestParser();
+        $_POST = ['from' => 'post'];
+        $this->assertEquals(['from' => 'post'], $parser->parse('from=post', ''));
+        $this->assertEquals(['from' => 'post'], $parser->parse('', ''));
+        $_POST = [];
+        $this->assertEquals(['from' => 'json'], $parser->parse('{"from":"json"}', ''));
+        $this->assertEquals(['from' => 'body'], $parser->parse('from=body', ''));
+        $this->assertEquals(['onlykey' => ''], $parser->parse('onlykey', ''));
+    }
+
+}