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arangodb/html/admin/js/graphViewer/jasmine_test/specNodeShaper/nodeShaperSpec.js

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/*jslint indent: 2, nomen: true, maxlen: 100, white: true plusplus: true */
/*global beforeEach, afterEach */
/*global describe, it, expect */
/*global window, eb, loadFixtures, document */
/*global $, _, d3*/
/*global helper*/
/*global NodeShaper*/
////////////////////////////////////////////////////////////////////////////////
/// @brief Graph functionality
///
/// @file
///
/// DISCLAIMER
///
/// Copyright 2010-2012 triagens GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is triAGENS GmbH, Cologne, Germany
///
/// @author Michael Hackstein
/// @author Copyright 2011-2012, triAGENS GmbH, Cologne, Germany
////////////////////////////////////////////////////////////////////////////////
(function () {
"use strict";
describe('Node Shaper', function () {
var svg;
beforeEach(function () {
svg = document.createElement("svg");
document.body.appendChild(svg);
});
afterEach(function () {
document.body.removeChild(svg);
});
it('should be able to draw a node', function () {
var node = [{_id: 1}],
shaper = new NodeShaper(d3.select("svg"));
shaper.drawNodes(node);
expect($("svg .node").length).toEqual(1);
expect($("svg .node")[0]).toBeDefined();
});
it('should be able to draw many nodes', function () {
var nodes = [{_id: 1}, {_id: 2}, {_id: 3}],
shaper = new NodeShaper(d3.select("svg"));
shaper.drawNodes(nodes);
expect($("svg .node").length).toEqual(3);
});
it('should be able to add an event', function () {
var nodes = [{_id: 1}, {_id: 2}, {_id: 3}],
clicked = [],
click = function (node) {
clicked[node._id] = !clicked[node._id];
},
shaper = new NodeShaper(d3.select("svg"));
shaper.on("click", click);
shaper.drawNodes(nodes);
helper.simulateMouseEvent("click", "1");
helper.simulateMouseEvent("click", "3");
expect($("svg .node").length).toEqual(3);
expect(clicked[1]).toBeTruthy();
expect(clicked[3]).toBeTruthy();
expect(clicked[2]).toBeUndefined();
});
describe('when nodes are already drawn', function() {
var nodes,
clicked,
click = function (node) {
clicked[node._id] = !clicked[node._id];
},
shaper;
beforeEach(function() {
nodes = [{_id: 1}, {_id: 2}, {_id: 3}];
clicked = [];
shaper = new NodeShaper(d3.select("svg"));
shaper.drawNodes(nodes);
expect($("svg .node").length).toEqual(3);
});
it('should be able to add a click event to existing nodes', function() {
expect($("svg .node").length).toEqual(3);
shaper.on("click", click);
helper.simulateMouseEvent("click", "1");
helper.simulateMouseEvent("click", "3");
expect($("svg .node").length).toEqual(3);
expect(clicked[1]).toBeTruthy();
expect(clicked[3]).toBeTruthy();
expect(clicked[2]).toBeUndefined();
});
it('should add a click event to newly arriving nodes', function() {
shaper.on("click", click);
nodes.push({_id: 4});
nodes.push({_id: 5});
shaper.drawNodes(nodes);
helper.simulateMouseEvent("click", "4");
helper.simulateMouseEvent("click", "5");
expect($("svg .node").length).toEqual(5);
expect(clicked[4]).toBeTruthy();
expect(clicked[5]).toBeTruthy();
expect(clicked[1]).toBeUndefined();
expect(clicked[2]).toBeUndefined();
expect(clicked[3]).toBeUndefined();
});
it('should display each node exactly once if an event is added', function() {
shaper.on("click", function() {return 0;});
expect($("svg .node").length).toEqual(3);
shaper.on("click", function() {return 1;});
expect($("svg .node").length).toEqual(3);
shaper.on("click", function() {return 2;});
expect($("svg .node").length).toEqual(3);
});
});
describe('configured for circle', function () {
var shaper;
beforeEach(function () {
shaper = new NodeShaper(d3.select("svg"), {"shape": NodeShaper.shapes.CIRCLE});
});
it('should draw circle elements', function () {
var node = [{_id: 1}];
shaper.drawNodes(node);
expect($("svg .node")[0]).toBeDefined();
expect($("svg .node").length).toEqual(1);
expect($("svg #1")[0]).toBeDefined();
expect($("svg circle")[0]).toBeDefined();
expect($("svg circle").length).toEqual(1);
expect($("svg .node circle")[0]).toBeDefined();
expect($("svg .node circle").length).toEqual(1);
});
it('should be able to use a fixed radius', function() {
shaper = new NodeShaper(d3.select("svg"),
{
"shape": NodeShaper.shapes.CIRCLE,
"size": 15
});
var nodes = [
{_id: 1},
{_id: 2},
{_id: 3},
{_id: 4},
{_id: 5}
];
shaper.drawNodes(nodes);
expect($("svg #1 circle")[0].attributes.r.value).toEqual("15");
expect($("svg #2 circle")[0].attributes.r.value).toEqual("15");
expect($("svg #3 circle")[0].attributes.r.value).toEqual("15");
expect($("svg #4 circle")[0].attributes.r.value).toEqual("15");
expect($("svg #5 circle")[0].attributes.r.value).toEqual("15");
});
it('should be able to use a function to determine the radius', function() {
var radiusFunction = function (node) {
return 10 + node._id;
},
nodes = [
{_id: 1},
{_id: 2},
{_id: 3},
{_id: 4},
{_id: 5}
];
shaper = new NodeShaper(d3.select("svg"),
{
"shape": NodeShaper.shapes.CIRCLE,
"size": radiusFunction
});
shaper.drawNodes(nodes);
expect($("svg #1 circle")[0].attributes.r.value).toEqual("11");
expect($("svg #2 circle")[0].attributes.r.value).toEqual("12");
expect($("svg #3 circle")[0].attributes.r.value).toEqual("13");
expect($("svg #4 circle")[0].attributes.r.value).toEqual("14");
expect($("svg #5 circle")[0].attributes.r.value).toEqual("15");
});
it('should display each node exactly once if an event is added', function() {
var radiusFunction = function (node) {
return 10;
},
nodes = [
{_id: 1},
{_id: 2},
{_id: 3},
{_id: 4},
{_id: 5}
];
shaper = new NodeShaper(d3.select("svg"),
{
"shape": NodeShaper.shapes.CIRCLE,
"size": radiusFunction
});
shaper.drawNodes(nodes);
expect($("circle").length).toEqual(5);
shaper.on("click", function() {return 0;});
expect($("circle").length).toEqual(5);
shaper.on("click", function() {return 1;});
expect($("circle").length).toEqual(5);
shaper.on("click", function() {return 2;});
expect($("circle").length).toEqual(5);
});
});
describe('configured for rectangle', function () {
var shaper;
beforeEach(function () {
shaper = new NodeShaper(d3.select("svg"), {"shape": NodeShaper.shapes.RECT});
});
it('should draw rect elements', function () {
var node = [{_id: 1}];
shaper.drawNodes(node);
expect($("svg .node")[0]).toBeDefined();
expect($("svg .node").length).toEqual(1);
expect($("svg #1")[0]).toBeDefined();
expect($("svg rect")[0]).toBeDefined();
expect($("svg rect").length).toEqual(1);
expect($("svg .node rect")[0]).toBeDefined();
expect($("svg .node rect").length).toEqual(1);
});
it('should be able to use a fixed size', function() {
shaper = new NodeShaper(d3.select("svg"),
{
"shape": NodeShaper.shapes.RECT,
"width": 15,
"height": 10
});
var nodes = [
{_id: 1},
{_id: 2},
{_id: 3},
{_id: 4},
{_id: 5}
];
shaper.drawNodes(nodes);
expect($("svg #1 rect")[0].attributes.width.value).toEqual("15");
expect($("svg #2 rect")[0].attributes.width.value).toEqual("15");
expect($("svg #3 rect")[0].attributes.width.value).toEqual("15");
expect($("svg #4 rect")[0].attributes.width.value).toEqual("15");
expect($("svg #5 rect")[0].attributes.width.value).toEqual("15");
expect($("svg #1 rect")[0].attributes.height.value).toEqual("10");
expect($("svg #2 rect")[0].attributes.height.value).toEqual("10");
expect($("svg #3 rect")[0].attributes.height.value).toEqual("10");
expect($("svg #4 rect")[0].attributes.height.value).toEqual("10");
expect($("svg #5 rect")[0].attributes.height.value).toEqual("10");
});
it('should be able to use a function to determine the size', function() {
var widthFunction = function (node) {
return 10 + node._id;
},
heightFunction = function (node) {
return 10 - node._id;
},
nodes = [
{_id: 1},
{_id: 2},
{_id: 3},
{_id: 4},
{_id: 5}
];
shaper = new NodeShaper(d3.select("svg"),
{
"shape": NodeShaper.shapes.RECT,
"width": widthFunction,
"height": heightFunction
});
shaper.drawNodes(nodes);
expect($("svg #1 rect")[0].attributes.width.value).toEqual("11");
expect($("svg #2 rect")[0].attributes.width.value).toEqual("12");
expect($("svg #3 rect")[0].attributes.width.value).toEqual("13");
expect($("svg #4 rect")[0].attributes.width.value).toEqual("14");
expect($("svg #5 rect")[0].attributes.width.value).toEqual("15");
expect($("svg #1 rect")[0].attributes.height.value).toEqual("9");
expect($("svg #2 rect")[0].attributes.height.value).toEqual("8");
expect($("svg #3 rect")[0].attributes.height.value).toEqual("7");
expect($("svg #4 rect")[0].attributes.height.value).toEqual("6");
expect($("svg #5 rect")[0].attributes.height.value).toEqual("5");
});
});
describe('configured for label', function () {
var shaper;
beforeEach(function () {
shaper = new NodeShaper(d3.select("svg"), {
"label": "label"
});
});
it('should add a text element', function () {
var node = [{_id: 1, "label": "MyLabel"}];
shaper.drawNodes(node);
expect($("svg .node")[0]).toBeDefined();
expect($("svg .node").length).toEqual(1);
expect($("svg #1")[0]).toBeDefined();
expect($("svg text")[0]).toBeDefined();
expect($("svg text").length).toEqual(1);
expect($("svg .node text")[0]).toBeDefined();
expect($("svg .node text").length).toEqual(1);
expect($("svg .node text")[0].textContent).toEqual("MyLabel");
});
it('should ignore other attributes', function () {
var nodes = [
{_id: 1, "label": "correct"},
{_id: 2, "alt": "incorrect"},
{_id: 3, "alt": "incorrect"},
{_id: 4, "label": "correct", "alt": "incorrect"}];
shaper.drawNodes(nodes);
expect($("svg #1 text")[0].textContent).toEqual("correct");
expect($("svg #2 text")[0].textContent).toEqual("");
expect($("svg #3 text")[0].textContent).toEqual("");
expect($("svg #4 text")[0].textContent).toEqual("correct");
});
it('should also print "0" as a label', function() {
var node = [{_id: 1, "label": 0}];
shaper.drawNodes(node);
expect($("svg .node text")[0]).toBeDefined();
expect($("svg .node text").length).toEqual(1);
expect($("svg .node text")[0].textContent).toEqual("0");
});
});
describe('using a function for labels', function () {
var shaper,
labelFunction = function (node) {
if (node._id === 4) {
return "correct";
}
if (node.label) {
return node.label;
}
if (node.alt) {
return node.alt;
}
return "default";
};
beforeEach(function () {
shaper = new NodeShaper(d3.select("svg"), {
"label": labelFunction
});
});
it('should display the correct labels according to the function', function () {
var nodes = [
{_id: 1, "label": "correct"},
{_id: 2, "alt": "correct"},
{_id: 3, "label": "correct", "alt": "incorrect"},
{_id: 4, "label": "incorrect", "alt": "incorrect"},
{_id: 5}
];
shaper.drawNodes(nodes);
expect($("text").length).toEqual(5);
expect($("#1 text")[0].textContent).toEqual("correct");
expect($("#2 text")[0].textContent).toEqual("correct");
expect($("#3 text")[0].textContent).toEqual("correct");
expect($("#4 text")[0].textContent).toEqual("correct");
expect($("#5 text")[0].textContent).toEqual("default");
});
});
describe('that has already drawn some nodes', function () {
var shaper, nodes;
beforeEach(function () {
shaper = new NodeShaper(d3.select("svg"));
nodes = [{_id: 1}, {_id: 2}, {_id: 3}, {_id: 4}, {_id: 5}];
shaper.drawNodes(nodes);
});
it('should be able to draw more nodes', function () {
nodes.push({_id: 6});
nodes.push({_id: 7});
nodes.push({_id: 8});
shaper.drawNodes(nodes);
expect($("svg .node").length).toEqual(8);
});
it('should be able to remove nodes', function () {
nodes.splice(1, 1);
nodes.splice(3, 1);
shaper.drawNodes(nodes);
expect($("svg .node").length).toEqual(3);
expect($("svg #1")[0]).toBeDefined();
expect($("svg #3")[0]).toBeDefined();
expect($("svg #4")[0]).toBeDefined();
expect($("svg #2")[0]).toBeUndefined();
expect($("svg #5")[0]).toBeUndefined();
});
it('should be able to add some nodes and remove other nodes', function () {
nodes.splice(1, 1);
nodes.splice(3, 1);
nodes.push({_id: 6});
nodes.push({_id: 7});
nodes.push({_id: 8});
shaper.drawNodes(nodes);
expect($("svg .node").length).toEqual(6);
expect($("svg #1")[0]).toBeDefined();
expect($("svg #3")[0]).toBeDefined();
expect($("svg #4")[0]).toBeDefined();
expect($("svg #6")[0]).toBeDefined();
expect($("svg #7")[0]).toBeDefined();
expect($("svg #8")[0]).toBeDefined();
expect($("svg #2")[0]).toBeUndefined();
expect($("svg #5")[0]).toBeUndefined();
});
});
describe('that has an other parent then body.svg', function () {
it('should draw nodes in the correct position', function () {
var internalObject = d3.select("svg")
.append("g")
.append("svg")
.append("g"),
node = [{_id: 1}],
shaper = new NodeShaper(internalObject);
shaper.drawNodes(node);
expect($("svg g svg g .node").length).toEqual(1);
});
});
describe('configured for circle with label', function () {
var shaper;
beforeEach(function () {
shaper = new NodeShaper(d3.select("svg"),
{
"shape": NodeShaper.shapes.CIRCLE,
"label": "label"
}
);
});
it('should draw circle elements', function () {
var node = [{
_id: 1,
"label": "correct"
}];
shaper.drawNodes(node);
expect($("svg .node").length).toEqual(1);
expect($("svg #1")[0]).toBeDefined();
expect($("svg circle")[0]).toBeDefined();
expect($("svg circle").length).toEqual(1);
expect($("svg .node circle")[0]).toBeDefined();
expect($("svg .node circle").length).toEqual(1);
expect($("svg text").length).toEqual(1);
expect($("svg .node text").length).toEqual(1);
expect($("svg .node text")[0].textContent).toEqual("correct");
});
});
});
}());
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