From c42a8a326c02ec2f02bc1c569166af9de18829ef Mon Sep 17 00:00:00 2001
From: AlbertGao <albertgaohy@gmail.com>
Date: Mon, 8 Feb 2021 23:56:40 +1300
Subject: [PATCH] Update Graph.test.js

To cover the below logic in `Graph class`

```javascript
  deleteEdge(edge) {
    // omit

    const start = this.getVertexByKey(edge.startVertex.getKey());
    const end = this.getVertexByKey(edge.endVertex.getKey());

    start.deleteEdge(edge);
    end.deleteEdge(edge);
  }
```
---
 src/data-structures/graph/__test__/Graph.test.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/data-structures/graph/__test__/Graph.test.js b/src/data-structures/graph/__test__/Graph.test.js
index 936a69b8..d56b8b42 100644
--- a/src/data-structures/graph/__test__/Graph.test.js
+++ b/src/data-structures/graph/__test__/Graph.test.js
@@ -246,6 +246,9 @@ describe('Graph', () => {
     expect(graph.getAllEdges().length).toBe(2);
     expect(graph.getAllEdges()[0].getKey()).toBe(edgeBC.getKey());
     expect(graph.getAllEdges()[1].getKey()).toBe(edgeAC.getKey());
+    
+    expect(vertexA.hasEdge(edgeAB)).toBe(false);
+    expect(vertexB.hasEdge(edgeAB)).toBe(false)
   });
 
   it('should should throw an error when trying to delete not existing edge', () => {