fix following change applied on graphp/graph master branch (graphp/graph#195)

Author: llaville

CHANGELOG.md

@@ -6,6 +6,14 @@ using the [Keep a CHANGELOG](http://keepachangelog.com) principles.
 
 ## [Unreleased]
 
+## [1.0.0-rc.2] - 2020-09-10
+
+### Fixed
+
+* synchronize with `graphp/graph` master branch (still under development) and fix it to commit [214de45](https://github.com/graphp/graph/commit/214de4572f0fa8a452addcf6135f87bfd3dec4ab)
+due to new feature
+  - [Remove `Vertices` and `Edges` collection classes, use plain arrays instead](https://github.com/graphp/graph/pull/195)
+
 ## [1.0.0-rc.1] - 2020-05-30
 
 ### Fixed

composer.json

@@ -11,7 +11,7 @@
     ],
     "require": {
         "php": "^7.1.3",
-        "graphp/graph": "dev-master as 1.0.0",
+        "graphp/graph": "dev-master#214de45 as 1.0.0",
         "graphp/graphviz": "dev-subgraph_cluster_attributes as 1.0.0"
     },
     "repositories": [

tests/ClassDiagramBuilderTest.php

@@ -144,10 +144,13 @@ public function testGraphHasEdges()
     public function testGraphHasEdgesConnection()
     {
         $vertex = $this->builder->createVertexClass(ClassDiagramBuilder::class);
-        $parent = $this->graph->getVertices()->getVertexLast();
+        $vertices = $this->graph->getVertices();
+        $parent = end($vertices);
         $edges = $this->graph->getEdges();
 
-        $this->assertTrue($edges->getEdgeFirst()->hasVertexStart($vertex));
-        $this->assertTrue($edges->getEdgeFirst()->hasVertexTarget($parent));
+        $edgeFirst = reset($edges);
+
+        $this->assertTrue($edgeFirst->hasVertexStart($vertex));
+        $this->assertTrue($edgeFirst->hasVertexTarget($parent));
     }
 }