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sankey_test.js
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var Plotly = require('@lib/index');
var attributes = require('@src/traces/sankey/attributes');
var Lib = require('@src/lib');
var d3 = require('d3');
var d3sankey = require('d3-sankey');
var d3SankeyCircular = require('d3-sankey-circular');
var mock = require('@mocks/sankey_energy.json');
var mockDark = require('@mocks/sankey_energy_dark.json');
var mockCircular = require('@mocks/sankey_circular.json');
var Sankey = require('@src/traces/sankey');
var createGraphDiv = require('../assets/create_graph_div');
var destroyGraphDiv = require('../assets/destroy_graph_div');
var failTest = require('../assets/fail_test');
var mouseEvent = require('../assets/mouse_event');
var assertHoverLabelStyle = require('../assets/custom_assertions').assertHoverLabelStyle;
var supplyAllDefaults = require('../assets/supply_defaults');
var defaultColors = require('@src/components/color/attributes').defaults;
describe('sankey tests', function() {
'use strict';
function _supply(traceIn) {
var traceOut = { visible: true };
var defaultColor = '#444';
var layout = { colorway: defaultColors };
Sankey.supplyDefaults(traceIn, traceOut, defaultColor, layout);
return traceOut;
}
function _supplyWithLayout(traceIn, layout) {
var traceOut = { visible: true };
var defaultColor = '#444';
Sankey.supplyDefaults(traceIn, traceOut, defaultColor, Lib.extendFlat({colorway: defaultColors}, layout));
return traceOut;
}
describe('don\'t remove nodes if encountering no circularity', function() {
it('removing a single self-pointing node', function() {
var fullTrace = _supply({
node: {
label: ['a', 'b']
},
link: {
value: [1],
source: [1],
target: [0]
}
});
expect(fullTrace.node.label).toEqual(['a', 'b'], 'node labels retained');
expect(fullTrace.link.value).toEqual([1], 'link value(s) retained');
expect(fullTrace.link.source).toEqual([1], 'link source(s) retained');
expect(fullTrace.link.target).toEqual([0], 'link target(s) retained');
});
});
describe('No warnings for missing nodes', function() {
// we used to warn when some nodes were not used in the links
// not doing that anymore, it's not really consistent with
// the rest of our data processing.
it('some nodes are not linked', function() {
var warnings = [];
spyOn(Lib, 'warn').and.callFake(function(msg) {
warnings.push(msg);
});
_supply({
node: {
label: ['a', 'b', 'c']
},
link: {
value: [1],
source: [0],
target: [1]
}
});
expect(warnings.length).toEqual(0);
});
});
describe('sankey global defaults', function() {
it('should not coerce trace opacity', function() {
var gd = Lib.extendDeep({}, mock);
supplyAllDefaults(gd);
expect(gd._fullData[0].opacity).toBeUndefined();
});
});
describe('sankey defaults', function() {
it('\'Sankey\' specification should have proper arrays where mandatory',
function() {
var fullTrace = _supply({});
expect(fullTrace.node.label)
.toEqual([], 'presence of node label array is guaranteed');
expect(fullTrace.link.value)
.toEqual([], 'presence of link value array is guaranteed');
expect(fullTrace.link.source)
.toEqual([], 'presence of link source array is guaranteed');
expect(fullTrace.link.target)
.toEqual([], 'presence of link target array is guaranteed');
expect(fullTrace.link.label)
.toEqual([], 'presence of link target array is guaranteed');
expect(fullTrace.link.colorscales)
.toEqual([], 'presence of link colorscales array is guaranteed');
});
it('\'Sankey\' specification should have proper types',
function() {
var fullTrace = _supply({});
expect(fullTrace.orientation)
.toEqual(attributes.orientation.dflt, 'use orientation by default');
expect(fullTrace.valueformat)
.toEqual(attributes.valueformat.dflt, 'valueformat by default');
expect(fullTrace.valuesuffix)
.toEqual(attributes.valuesuffix.dflt, 'valuesuffix by default');
expect(fullTrace.arrangement)
.toEqual(attributes.arrangement.dflt, 'arrangement by default');
expect(fullTrace.domain.x)
.toEqual(attributes.domain.x.dflt, 'x domain by default');
expect(fullTrace.domain.y)
.toEqual(attributes.domain.y.dflt, 'y domain by default');
});
it('\'Sankey\' layout dependent specification should have proper types',
function() {
var fullTrace = _supplyWithLayout({}, {font: {family: 'Arial'}});
expect(fullTrace.textfont)
.toEqual({family: 'Arial'}, 'textfont is defined');
});
it('\'line\' specifications should yield the default values',
function() {
var fullTrace = _supply({});
expect(fullTrace.node.line.color)
.toEqual('#444', 'default node line color');
expect(fullTrace.node.line.width)
.toEqual(0.5, 'default node line thickness');
expect(fullTrace.link.line.color)
.toEqual('#444', 'default link line color');
expect(fullTrace.link.line.width)
.toEqual(0, 'default link line thickness');
});
it('fills \'node\' colors if not specified', function() {
var fullTrace = _supply({
node: {
label: ['a', 'b']
},
link: {
source: [0],
target: [1],
value: [1]
}
});
expect(Array.isArray(fullTrace.node.color)).toBe(true, 'set up color array');
expect(fullTrace.node.color).toEqual(['rgba(31, 119, 180, 0.8)', 'rgba(255, 127, 14, 0.8)']);
});
it('respects layout.colorway', function() {
var fullTrace = _supplyWithLayout({
node: {
label: ['a', 'b']
},
link: {
source: [0],
target: [1],
value: [1]
}
}, {colorway: ['rgb(255, 0, 0)', 'rgb(0, 0, 255)']});
expect(Array.isArray(fullTrace.node.color)).toBe(true, 'set up color array');
expect(fullTrace.node.color).toEqual(['rgba(255, 0, 0, 0.8)', 'rgba(0, 0, 255, 0.8)']);
});
it('does not fill \'link\' labels even if not specified', function() {
var fullTrace = _supply({
node: {
label: ['a', 'b']
},
link: {
source: [0, 1],
target: [1, 0],
value: [1, 2]
}
});
expect(Array.isArray(fullTrace.link.label)).toBe(true, 'must be an array');
expect(fullTrace.link.label).toEqual([], 'an array of empty strings');
});
it('preserves \'link\' labels if specified', function() {
var fullTrace = _supply({
node: {
label: ['a', 'b']
},
link: {
source: [0, 1],
target: [1, 0],
value: [1, 2],
label: ['a', 'b']
}
});
expect(Array.isArray(fullTrace.link.label)).toBe(true, 'must be an array');
expect(fullTrace.link.label).toEqual(['a', 'b'], 'an array of the supplied values');
});
});
describe('sankey calc', function() {
function _calc(trace) {
var gd = { data: [trace] };
supplyAllDefaults(gd);
var fullTrace = gd._fullData[0];
return Sankey.calc(gd, fullTrace);
}
var base = { type: 'sankey' };
it('detects circularity', function() {
var calcData = _calc(Lib.extendDeep({}, base, {
node: {
label: ['a', 'b', 'c', 'd', 'e']
},
link: {
value: [1, 1, 1, 1, 1, 1, 1, 1],
source: [0, 1, 2, 3],
target: [1, 2, 0, 4]
}
}));
expect(calcData[0].circular).toBeTruthy();
});
it('detects the absence of circularity', function() {
var calcData = _calc(Lib.extendDeep({}, base, {
node: {
label: ['a', 'b', 'c', 'd', 'e']
},
link: {
value: [1, 1, 1, 1, 1, 1, 1, 1],
source: [0, 1, 2, 3],
target: [1, 2, 4, 4]
}
}));
expect(calcData[0].circular).toBe(false);
});
});
describe('lifecycle methods', function() {
afterEach(destroyGraphDiv);
it('Plotly.deleteTraces with two traces removes the deleted plot', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
var mockCopy2 = Lib.extendDeep({}, mockDark);
Plotly.plot(gd, mockCopy)
.then(function() {
expect(gd.data.length).toEqual(1);
expect(d3.selectAll('.sankey').size()).toEqual(1);
return Plotly.addTraces(gd, mockCopy2.data[0]);
})
.then(function() {
expect(gd.data.length).toEqual(2);
expect(d3.selectAll('.sankey').size()).toEqual(2);
return Plotly.deleteTraces(gd, [0]);
})
.then(function() {
expect(gd.data.length).toEqual(1);
expect(d3.selectAll('.sankey').size()).toEqual(1);
return Plotly.deleteTraces(gd, 0);
})
.then(function() {
expect(gd.data.length).toEqual(0);
expect(d3.selectAll('.sankey').size()).toEqual(0);
done();
});
});
it('Plotly.plot does not show Sankey if \'visible\' is false', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
Plotly.plot(gd, mockCopy)
.then(function() {
expect(gd.data.length).toEqual(1);
expect(d3.selectAll('.sankey').size()).toEqual(1);
return Plotly.restyle(gd, 'visible', false);
})
.then(function() {
expect(gd.data.length).toEqual(1);
expect(d3.selectAll('.sankey').size()).toEqual(0);
return Plotly.restyle(gd, 'visible', true);
})
.then(function() {
expect(gd.data.length).toEqual(1);
expect(d3.selectAll('.sankey').size()).toEqual(1);
done();
});
});
it('\'node\' remains visible even if \'value\' is very low', function(done) {
var gd = createGraphDiv();
var minimock = [{
type: 'sankey',
node: {
label: ['a', 'b1', 'b2']
},
link: {
source: [0, 0],
target: [1, 2],
value: [1000000, 0.001]
}
}];
Plotly.plot(gd, minimock)
.then(function() {
expect(d3.selectAll('.sankey .node-rect')[0].reduce(function(prevMin, rect) {
return Math.min(prevMin, d3.select(rect).attr('height'));
}, Infinity)).toEqual(0.5);
done();
});
});
});
describe('Test hover/click interactions:', function() {
afterEach(destroyGraphDiv);
function _hover(px, py) {
mouseEvent('mousemove', px, py);
mouseEvent('mouseover', px, py);
Lib.clearThrottle();
}
var node = [404, 302];
var link = [450, 300];
it('should show the correct hover labels', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
Plotly.plot(gd, mockCopy).then(function() {
_hover(404, 302);
assertLabel(
['Solid', 'incoming flow count: 4', 'outgoing flow count: 3', '447TWh'],
['rgb(148, 103, 189)', 'rgb(255, 255, 255)', 13, 'Arial', 'rgb(255, 255, 255)']
);
})
.then(function() {
_hover(450, 300);
assertLabel(
['source: Solid', 'target: Industry', '46TWh'],
['rgb(0, 0, 96)', 'rgb(255, 255, 255)', 13, 'Arial', 'rgb(255, 255, 255)']
);
})
// Test layout.hoverlabel
.then(function() {
return Plotly.relayout(gd, 'hoverlabel.font.family', 'Roboto');
})
.then(function() {
_hover(404, 302);
assertLabel(
['Solid', 'incoming flow count: 4', 'outgoing flow count: 3', '447TWh'],
['rgb(148, 103, 189)', 'rgb(255, 255, 255)', 13, 'Roboto', 'rgb(255, 255, 255)']
);
})
.then(function() {
_hover(450, 300);
assertLabel(
['source: Solid', 'target: Industry', '46TWh'],
['rgb(0, 0, 96)', 'rgb(255, 255, 255)', 13, 'Roboto', 'rgb(255, 255, 255)']
);
})
// Test trace-level hoverlabel
.then(function() {
return Plotly.restyle(gd, {
'hoverlabel.bgcolor': 'blue',
'hoverlabel.bordercolor': 'red',
'hoverlabel.font.size': 22,
'hoverlabel.font.color': 'magenta'
});
})
.then(function() {
_hover(404, 302);
assertLabel(
['Solid', 'incoming flow count: 4', 'outgoing flow count: 3', '447TWh'],
['rgb(0, 0, 255)', 'rgb(255, 0, 0)', 22, 'Roboto', 'rgb(255, 0, 255)']
);
})
.then(function() {
_hover(450, 300);
assertLabel(
['source: Solid', 'target: Industry', '46TWh'],
['rgb(0, 0, 255)', 'rgb(255, 0, 0)', 22, 'Roboto', 'rgb(255, 0, 255)']
);
})
// Test (node|link).hoverlabel
.then(function() {
return Plotly.restyle(gd, {
'node.hoverlabel.bgcolor': 'red',
'node.hoverlabel.bordercolor': 'blue',
'node.hoverlabel.font.size': 20,
'node.hoverlabel.font.color': 'black',
'node.hoverlabel.font.family': 'Roboto',
'link.hoverlabel.bgcolor': 'yellow',
'link.hoverlabel.bordercolor': 'magenta',
'link.hoverlabel.font.size': 18,
'link.hoverlabel.font.color': 'green',
'link.hoverlabel.font.family': 'Roboto'
});
})
.then(function() {
_hover(404, 302);
assertLabel(
['Solid', 'incoming flow count: 4', 'outgoing flow count: 3', '447TWh'],
['rgb(255, 0, 0)', 'rgb(0, 0, 255)', 20, 'Roboto', 'rgb(0, 0, 0)']
);
})
.then(function() {
_hover(450, 300);
assertLabel(
['source: Solid', 'target: Industry', '46TWh'],
['rgb(255, 255, 0)', 'rgb(255, 0, 255)', 18, 'Roboto', 'rgb(0, 128, 0)']
);
})
.catch(failTest)
.then(done);
});
it('should show the correct hover labels when hovertemplate is specified', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
Plotly.plot(gd, mockCopy).then(function() {
_hover(404, 302);
assertLabel(
['Solid', 'incoming flow count: 4', 'outgoing flow count: 3', '447TWh'],
['rgb(148, 103, 189)', 'rgb(255, 255, 255)', 13, 'Arial', 'rgb(255, 255, 255)']
);
})
.then(function() {
_hover(450, 300);
assertLabel(
['source: Solid', 'target: Industry', '46TWh'],
['rgb(0, 0, 96)', 'rgb(255, 255, 255)', 13, 'Arial', 'rgb(255, 255, 255)']
);
})
// Test (node|link).hovertemplate
.then(function() {
return Plotly.restyle(gd, {
'node.hovertemplate': 'hovertemplate<br>%{value}<br>%{value:0.2f}<extra>%{fullData.name}</extra>',
'link.hovertemplate': 'hovertemplate<br>source: %{source.label}<br>target: %{target.label}<br>size: %{value:0.0f}TWh<extra>%{fullData.name}</extra>'
});
})
.then(function() {
_hover(404, 302);
assertLabel(
[ 'hovertemplate', '447TWh', '447.48', 'trace 0'],
['rgb(148, 103, 189)', 'rgb(255, 255, 255)', 13, 'Arial', 'rgb(255, 255, 255)']
);
})
.then(function() {
_hover(450, 300);
assertLabel(
['hovertemplate', 'source: Solid', 'target: Industry', 'size: 46TWh', 'trace 0'],
['rgb(0, 0, 96)', 'rgb(255, 255, 255)', 13, 'Arial', 'rgb(255, 255, 255)']
);
})
.catch(failTest)
.then(done);
});
it('should show the correct hover labels with the style provided in template', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
mockCopy.layout.template = {
data: {
sankey: [{
node: {
hoverlabel: {
bgcolor: 'red',
bordercolor: 'blue',
font: {
size: 20,
color: 'black',
family: 'Roboto'
}
}
},
link: {
hoverlabel: {
bgcolor: 'yellow',
bordercolor: 'magenta',
font: {
size: 18,
color: 'green',
family: 'Roboto'
}
}
}
}]
}
};
Plotly.plot(gd, mockCopy)
.then(function() {
_hover(404, 302);
assertLabel(
['Solid', 'incoming flow count: 4', 'outgoing flow count: 3', '447TWh'],
['rgb(255, 0, 0)', 'rgb(0, 0, 255)', 20, 'Roboto', 'rgb(0, 0, 0)']
);
})
.then(function() {
_hover(450, 300);
assertLabel(
['source: Solid', 'target: Industry', '46TWh'],
['rgb(255, 255, 0)', 'rgb(255, 0, 255)', 18, 'Roboto', 'rgb(0, 128, 0)']
);
})
.catch(failTest)
.then(done);
});
it('should show the correct hover labels even if there is no link.label supplied', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
delete mockCopy.data[0].link.label;
Plotly.plot(gd, mockCopy)
.then(function() {
_hover(450, 300);
assertLabel(
['source: Solid', 'target: Industry', '46TWh'],
['rgb(0, 0, 96)', 'rgb(255, 255, 255)', 13, 'Arial', 'rgb(255, 255, 255)']
);
})
.catch(failTest)
.then(done);
});
it('should not show any labels if hovermode is false', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
Plotly.plot(gd, mockCopy).then(function() {
return Plotly.relayout(gd, 'hovermode', false);
})
.then(function() {
_hover(node[0], node[1]);
assertNoLabel();
})
.then(function() {
_hover(link[0], link[1]);
assertNoLabel();
})
.catch(failTest)
.then(done);
});
['skip', 'none'].forEach(function(hoverinfoFlag) {
it('should not show node labels if node.hoverinfo is ' + hoverinfoFlag, function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
Plotly.plot(gd, mockCopy).then(function() {
return Plotly.restyle(gd, 'node.hoverinfo', hoverinfoFlag);
})
.then(function() {
_hover(node[0], node[1]);
assertNoLabel();
})
.catch(failTest)
.then(done);
});
});
['skip', 'none'].forEach(function(hoverinfoFlag) {
it('should not show link labels if link.hoverinfo is ' + hoverinfoFlag, function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
Plotly.plot(gd, mockCopy).then(function() {
return Plotly.restyle(gd, 'link.hoverinfo', hoverinfoFlag);
})
.then(function() {
_hover(link[0], link[1]);
assertNoLabel();
})
.catch(failTest)
.then(done);
});
});
['skip', 'none'].forEach(function(hoverinfoFlag) {
it('should not show labels if trace hoverinfo is ' + hoverinfoFlag + ' and (node|link).hoverinfo is undefined', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
Plotly.plot(gd, mockCopy).then(function() {
return Plotly.restyle(gd, 'hoverinfo', hoverinfoFlag);
})
.then(function() {
_hover(node[0], node[1]);
assertNoLabel();
})
.then(function() {
_hover(link[0], link[1]);
assertNoLabel();
})
.catch(failTest)
.then(done);
});
});
it('should not show link labels if link.hoverinfo is skip', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
Plotly.plot(gd, mockCopy).then(function() {
return Plotly.restyle(gd, 'link.hoverinfo', 'skip');
})
.then(function() {
_hover(link[0], link[1]);
assertNoLabel();
})
.catch(failTest)
.then(done);
});
});
describe('Test hover/click event data:', function() {
var gd;
beforeEach(function() {
gd = createGraphDiv();
});
afterEach(destroyGraphDiv);
function _makeWrapper(eventType, mouseFn) {
var posByElementType = {
node: [404, 302],
link: [450, 300]
};
return function(elType) {
return new Promise(function(resolve, reject) {
gd.once(eventType, function(d) {
Lib.clearThrottle();
resolve(d);
});
mouseFn(posByElementType[elType]);
setTimeout(function() {
reject(eventType + ' did not get called!');
}, 100);
});
};
}
var _hover = _makeWrapper('plotly_hover', function(pos) {
mouseEvent('mouseover', pos[0], pos[1]);
});
var _click = _makeWrapper('plotly_click', function(pos) {
mouseEvent('click', pos[0], pos[1]);
});
var _unhover = _makeWrapper('plotly_unhover', function(pos) {
mouseEvent('mouseover', pos[0], pos[1]);
mouseEvent('mouseout', pos[0], pos[1]);
});
function _assert(d, expectedPtData) {
expect(d.event).toBeDefined('original event reference');
var ptData = d.points[0];
Object.keys(expectedPtData).forEach(function(k) {
expect(ptData[k]).toBe(expectedPtData[k], 'point data for ' + k);
});
}
it('should output correct click event data', function(done) {
var fig = Lib.extendDeep({}, mock);
Plotly.plot(gd, fig)
.then(function() { return _click('node'); })
.then(function(d) {
_assert(d, {
curveNumber: 0,
pointNumber: 4,
label: 'Solid'
});
})
.then(function() { return _click('link'); })
.then(function(d) {
_assert(d, {
curveNumber: 0,
pointNumber: 61,
value: 46.477
});
})
.catch(failTest)
.then(done);
});
it('should output correct hover/unhover event data', function(done) {
var fig = Lib.extendDeep({}, mock);
Plotly.plot(gd, fig)
.then(function() { return Plotly.restyle(gd, 'hoverinfo', 'none'); })
.then(function() { return _hover('node'); })
.then(function(d) {
_assert(d, {
curveNumber: 0,
pointNumber: 4,
label: 'Solid',
value: 447.48
});
var pt = d.points[0];
expect(pt.sourceLinks.length).toBe(3);
expect(pt.targetLinks.length).toBe(4);
})
.then(function() { return _hover('link'); })
.then(function(d) {
_assert(d, {
curveNumber: 0,
pointNumber: 61,
value: 46.477
});
var pt = d.points[0];
expect(pt.hasOwnProperty('source')).toBeTruthy();
expect(pt.hasOwnProperty('target')).toBeTruthy();
expect(pt.hasOwnProperty('flow')).toBeTruthy();
})
.then(function() { return _unhover('node'); })
.then(function(d) {
_assert(d, {
curveNumber: 0,
pointNumber: 4,
label: 'Solid'
});
})
.then(function() { return _unhover('link'); })
.then(function(d) {
_assert(d, {
curveNumber: 0,
pointNumber: 61,
value: 46.477
});
})
.catch(failTest)
.then(done);
});
function assertNoHoverEvents(type) {
return function() {
return Promise.resolve()
.then(function() { return _hover(type); })
.then(failTest).catch(function(err) {
expect(err).toBe('plotly_hover did not get called!');
})
.then(function() { return _unhover(type); })
.then(failTest).catch(function(err) {
expect(err).toBe('plotly_unhover did not get called!');
});
};
}
it('should not output hover/unhover event data when hovermode is false', function(done) {
var fig = Lib.extendDeep({}, mock);
Plotly.plot(gd, fig)
.then(function() { return Plotly.relayout(gd, 'hovermode', false); })
.then(assertNoHoverEvents('node'))
.then(assertNoHoverEvents('link'))
.catch(failTest)
.then(done);
});
it('should not output hover/unhover event data when trace hoverinfo is skip', function(done) {
var fig = Lib.extendDeep({}, mock);
Plotly.plot(gd, fig)
.then(function() { return Plotly.restyle(gd, 'hoverinfo', 'skip'); })
.then(assertNoHoverEvents('link'))
.then(assertNoHoverEvents('node'))
.catch(failTest)
.then(done);
});
['node', 'link'].forEach(function(obj) {
it('should not output hover/unhover event data when ' + obj + '.hoverinfo is skip', function(done) {
var fig = Lib.extendDeep({}, mock);
Plotly.plot(gd, fig)
.then(function() { return Plotly.restyle(gd, obj + '.hoverinfo', 'skip'); })
.then(assertNoHoverEvents(obj))
.catch(failTest)
.then(done);
});
});
});
it('emits a warning if node.pad is too large', function(done) {
var gd = createGraphDiv();
var mockCopy = Lib.extendDeep({}, mock);
var warnings = [];
spyOn(Lib, 'warn').and.callFake(function(msg) {
warnings.push(msg);
});
Plotly.plot(gd, mockCopy).then(function() {
expect(warnings.length).toEqual(0);
return Plotly.restyle(gd, 'node.pad', 50);
})
.then(function() {
expect(warnings.length).toEqual(1);
})
.catch(failTest)
.finally(destroyGraphDiv)
.then(done);
});
});
function assertLabel(content, style) {
var g = d3.selectAll('.hovertext');
var lines = g.selectAll('.nums .line');
var name = g.selectAll('.name');
var tooltipBoundingBox = g.node().getBoundingClientRect();
var nameBoundingBox = name.node().getBoundingClientRect();
expect(tooltipBoundingBox.top <= nameBoundingBox.top);
expect(tooltipBoundingBox.bottom >= nameBoundingBox.bottom);
expect(lines.size()).toBe(content.length - 1);
lines.each(function(_, i) {
expect(d3.select(this).text()).toBe(content[i]);
});
expect(name.text()).toBe(content[content.length - 1]);
assertHoverLabelStyle(g, {
bgcolor: style[0],
bordercolor: style[1],
fontSize: style[2],
fontFamily: style[3],
fontColor: style[4]
});
}
function assertNoLabel() {
var g = d3.selectAll('.hovertext');
expect(g.size()).toBe(0);
}
describe('sankey layout generators', function() {
function checkArray(arr, key, result) {
var value = arr.map(function(obj) {
return obj[key];
});
expect(value).toEqual(result, 'invalid property named ' + key);
}
function checkRoundedArray(arr, key, result) {
var value = arr.map(function(obj) {
return Math.round(obj[key]);
});
expect(value).toEqual(result, 'invalid property named ' + key);
}
function moveNode(sankey, graph, nodeIndex, delta) {
var node = graph.nodes[nodeIndex];
var pos0 = [node.x0, node.y0];
var pos1 = [node.x1, node.y1];
// Update node's position
node.x0 += delta[0];
node.x1 += delta[0];
node.y0 += delta[1];
node.y1 += delta[1];
// Update links
var updatedGraph = sankey.update(graph);
// Check node position
expect(updatedGraph.nodes[nodeIndex].x0).toBeCloseTo(pos0[0] + delta[0], 0);
expect(updatedGraph.nodes[nodeIndex].x1).toBeCloseTo(pos1[0] + delta[0], 0);
expect(updatedGraph.nodes[nodeIndex].y0).toBeCloseTo(pos0[1] + delta[1], 0);
expect(updatedGraph.nodes[nodeIndex].y1).toBeCloseTo(pos1[1] + delta[1], 0);
return updatedGraph;
}
describe('d3-sankey', function() {
var data = {
'nodes': [{
'node': 0,
'name': 'node0'
}, {
'node': 1,
'name': 'node1'
}, {
'node': 2,
'name': 'node2'
}, {
'node': 3,
'name': 'node3'
}, {
'node': 4,
'name': 'node4'
}],
'links': [{
'source': 0,
'target': 2,
'value': 2
}, {
'source': 1,
'target': 2,
'value': 2
}, {
'source': 1,
'target': 3,
'value': 2
}, {
'source': 0,
'target': 4,
'value': 2
}, {
'source': 2,
'target': 3,
'value': 2
}, {
'source': 2,
'target': 4,
'value': 2
}, {
'source': 3,
'target': 4,
'value': 4
}]
};