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334 lines
11 KiB
334 lines
11 KiB
var fs = require('fs');
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var assert = require('assert');
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var vis = require('../dist/vis');
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var Network = vis.network;
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var jsdom_global = require('jsdom-global');
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var stdout = require('test-console').stdout;
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var Validator = require("./../lib/shared/Validator").default;
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//var {printStyle} = require('./../lib/shared/Validator');
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// Useful during debugging:
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// console.log(JSON.stringify(output, null, 2));
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/**
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* Load legacy-style (i.e. not module) javascript files into the given context.
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*/
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function include(list, context) {
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if (!(list instanceof Array)) {
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list = [list];
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}
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for (var n in list) {
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var path = list[n];
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var arr = [fs.readFileSync(path) + ''];
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eval.apply(context, arr);
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}
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}
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/**
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* Defined network consists of two sub-networks:
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*
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* - 1-2-3-4
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* - 11-12-13-14
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*
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* For reference, this is the sample network of issue #1218
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*/
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function createSampleNetwork() {
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var NumInitialNodes = 8;
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var NumInitialEdges = 6;
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var nodes = new vis.DataSet([
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{id: 1, label: '1'},
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{id: 2, label: '2'},
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{id: 3, label: '3'},
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{id: 4, label: '4'},
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{id: 11, label: '11'},
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{id: 12, label: '12'},
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{id: 13, label: '13'},
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{id: 14, label: '14'},
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]);
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var edges = new vis.DataSet([
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{from: 1, to: 2},
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{from: 2, to: 3},
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{from: 3, to: 4},
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{from: 11, to: 12},
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{from: 12, to: 13},
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{from: 13, to: 14},
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]);
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// create a network
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var container = document.getElementById('mynetwork');
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var data = {
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nodes: nodes,
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edges: edges
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};
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var options = {
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layout: {
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randomSeed: 8
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},
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edges: {
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smooth: {
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type: 'continuous' // avoid dynamic here, it adds extra hidden nodes
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}
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}
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};
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var network = new vis.Network(container, data, options);
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assertNumNodes(network, NumInitialNodes);
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assertNumEdges(network, NumInitialEdges);
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return [network, data, NumInitialNodes, NumInitialEdges];
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};
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/**
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* Create a cluster for the dynamic data change cases.
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*
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* Works on the network created by createSampleNetwork().
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*
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* This is actually a pathological case; there are two separate sub-networks and
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* a cluster is made of two nodes, each from one of the sub-networks.
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*/
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function createCluster(network) {
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//console.log("clustering 1 and 11")
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var clusterOptionsByData = {
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joinCondition: function(node) {
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if (node.id == 1 || node.id == 11) return true;
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return false;
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},
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clusterNodeProperties: {id:"c1", label:'c1'}
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}
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network.cluster(clusterOptionsByData);
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}
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/**
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* Display node/edge state, useful during debugging
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*/
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function log(network) {
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console.log(Object.keys(network.body.nodes));
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console.log(network.body.nodeIndices);
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console.log(Object.keys(network.body.edges));
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console.log(network.body.edgeIndices);
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};
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/**
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* Note that only the node and edges counts are asserted.
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* This might be done more thoroughly by explicitly checking the id's
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*/
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function assertNumNodes(network, expectedPresent, expectedVisible) {
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if (expectedVisible === undefined) expectedVisible = expectedPresent;
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assert.equal(Object.keys(network.body.nodes).length, expectedPresent);
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assert.equal(network.body.nodeIndices.length, expectedVisible);
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};
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/**
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* Comment at assertNumNodes() also applies.
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*/
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function assertNumEdges(network, expectedPresent, expectedVisible) {
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if (expectedVisible === undefined) expectedVisible = expectedPresent;
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assert.equal(Object.keys(network.body.edges).length, expectedPresent);
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assert.equal(network.body.edgeIndices.length, expectedVisible);
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};
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describe('Network', function () {
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before(function() {
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this.jsdom_global = jsdom_global(
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"<div id='mynetwork'></div>",
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{ skipWindowCheck: true}
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);
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this.container = document.getElementById('mynetwork');
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});
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after(function() {
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this.jsdom_global();
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});
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/**
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* Check on fix for #1218
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*/
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it('connects a new edge to a clustering node instead of the clustered node', function () {
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var [network, data, numNodes, numEdges] = createSampleNetwork();
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createCluster(network);
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numNodes += 1; // A clustering node is now hiding two nodes
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assertNumNodes(network, numNodes, numNodes - 2);
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numEdges += 2; // Two clustering edges now hide two edges
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assertNumEdges(network, numEdges, numEdges - 2);
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//console.log("Creating node 21")
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data.nodes.update([{id: 21, label: '21'}]);
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numNodes += 1; // New unconnected node added
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assertNumNodes(network, numNodes, numNodes - 2);
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assertNumEdges(network, numEdges, numEdges - 2); // edges unchanged
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//console.log("Creating edge 21 pointing to 1");
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// '1' is part of the cluster so should
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// connect to cluster instead
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data.edges.update([{from: 21, to: 1}]);
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assertNumNodes(network, numNodes, numNodes - 2); // nodes unchanged
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numEdges += 2; // A new clustering edge is hiding a new edge
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assertNumEdges(network, numEdges, numEdges - 3);
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});
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/**
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* Check on fix for #1315
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*/
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it('can uncluster a clustered node when a node is removed that has an edge to that cluster', function () {
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// NOTE: this block is same as previous test
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var [network, data, numNodes, numEdges] = createSampleNetwork();
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createCluster(network);
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numNodes += 1; // A clustering node is now hiding two nodes
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assertNumNodes(network, numNodes, numNodes - 2);
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numEdges += 2; // Two clustering edges now hide two edges
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assertNumEdges(network, numEdges, numEdges - 2);
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// End block same as previous test
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//console.log("removing 12");
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data.nodes.remove(12);
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// NOTE:
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// At this particular point, there are still the two edges for node 12 in the edges DataSet.
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// If you want to do the delete correctly, these should also be deleted explictly from
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// the edges DataSet. In the Network instance, however, this.body.nodes and this.body.edges
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// should be correct, with the edges of 12 all cleared out.
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// 12 was connected to 11, which is clustered
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numNodes -= 1; // 12 removed, one less node
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assertNumNodes(network, numNodes, numNodes - 2);
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numEdges -= 3; // clustering edge c1-12 and 2 edges of 12 gone
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assertNumEdges(network, numEdges, numEdges - 1);
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//console.log("Unclustering c1");
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network.openCluster("c1");
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numNodes -= 1; // cluster node removed, one less node
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assertNumNodes(network, numNodes, numNodes); // all are visible again
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numEdges -= 1; // clustering edge gone, regular edge visible
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assertNumEdges(network, numEdges, numEdges); // all are visible again
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});
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/**
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* Check on fix for #1291
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*/
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it('can remove a node inside a cluster and then open that cluster', function () {
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var [network, data, numNodes, numEdges] = createSampleNetwork();
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var clusterOptionsByData = {
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joinCondition: function(node) {
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if (node.id == 1 || node.id == 2 || node.id == 3) return true;
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return false;
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},
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clusterNodeProperties: {id:"c1", label:'c1'}
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}
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network.cluster(clusterOptionsByData);
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numNodes += 1; // new cluster node
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assertNumNodes(network, numNodes, numNodes - 3); // 3 clustered nodes
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numEdges += 1; // 1 cluster edge expected
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assertNumEdges(network, numEdges, numEdges - 3); // 3 edges hidden
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//console.log("removing node 2, which is inside the cluster");
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data.nodes.remove(2);
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numNodes -= 1; // clustered node removed
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assertNumNodes(network, numNodes, numNodes - 2); // view doesn't change
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numEdges -= 2; // edges removed hidden in cluster
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assertNumEdges(network, numEdges, numEdges - 1); // view doesn't change
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//console.log("Unclustering c1");
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network.openCluster("c1")
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numNodes -= 1; // cluster node gone
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assertNumNodes(network, numNodes, numNodes); // all visible
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numEdges -= 1; // cluster edge gone
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assertNumEdges(network, numEdges, numEdges); // all visible
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//log(network);
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});
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describe('on node.js', function () {
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it('should be running', function () {
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assert(this.container !== null, 'Container div not found');
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// The following should now just plain succeed
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var [network, data] = createSampleNetwork();
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assert.equal(Object.keys(network.body.nodes).length, 8);
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assert.equal(Object.keys(network.body.edges).length, 6);
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});
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describe('runs example ', function () {
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function loadExample(path, noPhysics) {
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include(path, this);
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var container = document.getElementById('mynetwork');
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// create a network
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var data = {
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nodes: new vis.DataSet(nodes),
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edges: new vis.DataSet(edges)
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};
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if (noPhysics) {
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// Avoid excessive processor time due to load.
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// We're just interested that the load itself is good
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options.physics = false;
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}
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var network = new vis.Network(container, data, options);
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return network;
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};
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it('basicUsage', function () {
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var network = loadExample('./test/network/basicUsage.js');
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//console.log(Object.keys(network.body.edges));
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// Count in following also contains the helper nodes for dynamic edges
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assert.equal(Object.keys(network.body.nodes).length, 10);
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assert.equal(Object.keys(network.body.edges).length, 5);
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});
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it('WorlCup2014', function () {
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// This is a huge example (which is why it's tested here!), so it takes a long time to load.
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this.timeout(10000);
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var network = loadExample('./examples/network/datasources/WorldCup2014.js', true);
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// Count in following also contains the helper nodes for dynamic edges
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assert.equal(Object.keys(network.body.nodes).length, 9964);
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assert.equal(Object.keys(network.body.edges).length, 9228);
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});
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// This actually failed to load, added for this reason
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it('disassemblerExample', function () {
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var network = loadExample('./examples/network/exampleApplications/disassemblerExample.js');
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// console.log(Object.keys(network.body.nodes));
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// console.log(Object.keys(network.body.edges));
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// Count in following also contains the helper nodes for dynamic edges
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assert.equal(Object.keys(network.body.nodes).length, 9);
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assert.equal(Object.keys(network.body.edges).length, 14 - 3); // NB 3 edges in data not displayed
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});
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}); // runs example
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}); // on node.js
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}); // Network
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