Add electron

backend/src/Model/spec/TreeNode.spec.ts

@@ -0,0 +1,51 @@
+import { Edge, Tree, TreeNode, TreeNodeFactory } from '../'
+import { expect } from 'chai';
+import 'mocha';
+
+import './TreeNode.findNode'
+
+describe('TreeNode', () => {
+  it('updateWithNode should update value', () => {
+    const topics = 'foo/bar'.split('/')
+    const leaf = TreeNodeFactory.fromEdgesAndValue(topics, 3)
+    expect(leaf.value).to.eq(3)
+    const updateLeave = TreeNodeFactory.fromEdgesAndValue(topics, 5)
+    leaf.firstNode().updateWithNode(updateLeave.firstNode())
+
+    expect(leaf.firstNode().sourceEdge.name).to.eq(updateLeave.firstNode().sourceEdge.name)
+    expect(leaf.value).to.eq(5)
+  })
+
+  it('updateWithNode should update intermediate nodes', () => {
+    const topics1 = 'foo/bar/baz'.split('/')
+    const leaf = TreeNodeFactory.fromEdgesAndValue(topics1, 3)
+    expect(leaf.value).to.eq(3)
+
+    const topics2 = 'foo/bar'.split('/')
+    const updateLeave = TreeNodeFactory.fromEdgesAndValue(topics2, 5)
+    leaf.firstNode().updateWithNode(updateLeave.firstNode())
+
+    let barNode = leaf.firstNode().findNode('foo/bar')
+    expect(barNode && barNode.sourceEdge.name).to.eq('bar')
+    expect(barNode && barNode.value).to.eq(5)
+
+    expect(leaf.sourceEdge.name).to.eq('baz')
+    expect(leaf.value).to.eq(3)
+  })
+
+  it('updateWithNode should add nodes to the tree', () => {
+    const topics1 = 'foo/bar'.split('/')
+    const leaf1 = TreeNodeFactory.fromEdgesAndValue(topics1, 3)
+
+    const topics2 = 'foo/bar/baz'.split('/')
+    const leaf2 = TreeNodeFactory.fromEdgesAndValue(topics2, 5)
+
+    leaf1.firstNode().updateWithNode(leaf2.firstNode())
+
+    let expectedNode = leaf1.firstNode().findNode('foo/bar/baz')
+    if (!expectedNode) {
+      expect.fail('merge seems to have failed')
+      return
+    }
+  })
+});