diff --git a/cypress/integration/flow/graph-utils.spec.js b/cypress/integration/flow/graph-utils.spec.js
index 00e355a7..dccf0d23 100644
--- a/cypress/integration/flow/graph-utils.spec.js
+++ b/cypress/integration/flow/graph-utils.spec.js
@@ -44,12 +44,19 @@ describe('Graph Utils Testing', () => {
 
   describe('tests addEdge function', () => {
     it('adds edge', () => {
-      const newEdge = { source: '2', target: '3' };
+      const newEdge = { source: '1', target: '4' };
       const nextElements = addEdge(newEdge, elements);
 
       expect(nextElements.length).to.be.equal(elements.length + 1);
     });
 
+    it('tries to add existing edge', () => {
+      const newEdge = { source: '2', target: '3' };
+      const nextElements = addEdge(newEdge, elements);
+
+      expect(nextElements.length).to.be.equal(elements.length);
+    });
+
     it('tries to add invalid edge', () => {
       const newEdge = { nosource: '1', notarget: '3' };
 
@@ -61,18 +68,6 @@ describe('Graph Utils Testing', () => {
         expect(e.message).to.be.equal("Can't create edge. An edge needs a source and a target.");
       }
     });
-
-    it('tries to add edge with id that does not exist', () => {
-      const notExistingId = 'does-not-exist';
-      const newEdge = { source: notExistingId, target: '3' };
-
-      try {
-        addEdge(newEdge, elements);
-      } catch (e) {
-        console.log(e.message);
-        expect(e.message).to.be.equal(`Can't create edge. Node with id=${notExistingId} does not exist.`);
-      }
-    });
   });
 
   describe('tests removeElements function', () => {