chore(svelte-examples): pull out of lib package (#3363)

* chore(svelte-examples): pull out of lib package * chore(svelte-examples): cleanup * chore(examples): add readme files
2023-08-31 16:44:27 +02:00
parent 3da34c739e
commit dcc38794a6
197 changed files with 2003 additions and 1575 deletions
@@ -0,0 +1,79 @@
+import { Node, Edge, isNode, isEdge, getOutgoers, getIncomers, addEdge } from '@xyflow/react';
+
+const nodes: Node[] = [
+  {
+    id: '1',
+    type: 'input',
+    data: { label: 'Node 1' },
+    position: { x: 250, y: 5 },
+  },
+  { id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 } },
+  { id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 } },
+  { id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 } },
+];
+
+const edges: Edge[] = [
+  { id: 'e1-2', source: '1', target: '2', animated: true },
+  { id: 'e1-3', source: '1', target: '3' },
+  { id: 'e2-3', source: '2', target: '3' },
+];
+
+describe('Graph Utils Testing', () => {
+  it('tests isNode function', () => {
+    expect(isNode(nodes[0])).to.be.true;
+    expect(isNode(edges[0])).to.be.false;
+  });
+
+  it('tests isEdge function', () => {
+    expect(isEdge(edges[0])).to.be.true;
+    expect(isEdge(nodes[0])).to.be.false;
+  });
+
+  it('tests getOutgoers function', () => {
+    const outgoers = getOutgoers(nodes[0], nodes, edges);
+
+    expect(outgoers.length).to.be.equal(2);
+
+    const noOutgoers = getOutgoers(nodes[2], nodes, edges);
+    expect(noOutgoers.length).to.be.equal(0);
+  });
+
+  it('tests getIncomers function', () => {
+    const incomers = getIncomers(nodes[2], nodes, edges);
+    expect(incomers.length).to.be.equal(2);
+
+    const noIncomers = getIncomers(nodes[0], nodes, edges);
+    expect(noIncomers.length).to.be.equal(0);
+  });
+
+  describe('tests addEdge function', () => {
+    it('adds edge', () => {
+      const newEdge: Edge = { source: '1', target: '4', id: 'new-edge-1-4' };
+      const nextEdges = addEdge(newEdge, edges);
+
+      expect(nextEdges.length).to.be.equal(edges.length + 1);
+    });
+
+    it('tries to add existing edge', () => {
+      const newEdge: Edge = { source: '2', target: '3', id: 'new-edge-2-3' };
+      const nextEdges = addEdge(newEdge, edges);
+
+      expect(nextEdges.length).to.be.equal(edges.length);
+    });
+
+    it('tries to add invalid edge', () => {
+      // @ts-ignore
+      const newEdge: Edge = { nosource: '1', notarget: '3' };
+
+      try {
+        addEdge(newEdge, edges);
+      } catch (e: any) {
+        console.log(e.message);
+
+        expect(e.message).to.be.equal("Can't create edge. An edge needs a source and a target.");
+      }
+    });
+  });
+});
+
+export {};