Quite good looking graph derived from d3.js http://c3js.org
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describe('c3 chart axis', function () {
'use strict';
var chart;
var args = {
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25],
['data3', 150, 120, 110, 140, 115, 125]
]
},
axis: {
y: {
tick: {
values: null,
count: undefined
}
},
y2: {
tick: {
values: null,
count: undefined
}
}
}
};
beforeEach(function (done) {
chart = window.initChart(chart, args, done);
});
describe('axis.y.tick.count', function () {
describe('with only 1 tick on y axis', function () {
beforeAll(function(){
args.axis.y.tick.count = 1;
});
it('should have only 1 tick on y axis', function () {
var ticksSize = d3.select('.c3-axis-y').selectAll('g.tick').size();
expect(ticksSize).toBe(1);
});
});
describe('with 2 ticks on y axis', function () {
beforeAll(function(){
args.axis.y.tick.count = 2;
});
it('should have 2 ticks on y axis', function () {
var ticksSize = d3.select('.c3-axis-y').selectAll('g.tick').size();
expect(ticksSize).toBe(2);
});
});
describe('with 3 ticks on y axis', function () {
beforeAll(function(){
args.axis.y.tick.count = 3;
});
it('should have 3 ticks on y axis', function () {
var ticksSize = d3.select('.c3-axis-y').selectAll('g.tick').size();
expect(ticksSize).toBe(3);
});
});
});
describe('axis.y.tick.values', function () {
var values = [100, 500];
describe('with only 2 ticks on y axis', function () {
beforeAll(function(){
args.axis.y.tick.values = values;
});
it('should have only 2 tick on y axis', function () {
var ticksSize = d3.select('.c3-axis-y').selectAll('g.tick').size();
expect(ticksSize).toBe(2);
});
it('should have specified tick texts', function () {
d3.select('.c3-axis-y').selectAll('g.tick').each(function (d, i) {
var text = d3.select(this).select('text').text();
expect(+text).toBe(values[i]);
});
});
});
});
describe('axis y timeseries', function () {
beforeAll(function () {
args = {
data: {
columns: [
["times", 60000, 120000, 180000, 240000]
]
},
axis: {
y: {
type : 'timeseries',
tick: {
time: {
}
}
}
}
};
});
it('should have 7 ticks on y axis', function () {
var ticksSize = d3.select('.c3-axis-y').selectAll('g.tick').size();
expect(ticksSize).toBe(7); // the count starts at initial value and increments by the set interval
});
it('should have specified 30 second intervals', function () {
var prevValue;
d3.select('.c3-axis-y').selectAll('g.tick').each(function (d, i) {
if (i !== 0) {
var result = d - prevValue;
expect(result).toEqual(30000); // expressed in milliseconds
}
prevValue = d;
});
});
describe('with axis.y.time', function () {
beforeAll(function(){
args.axis.y.tick.time = {
value : 'seconds',
interval : 60
};
});
it('should have 4 ticks on y axis', function () {
var ticksSize = d3.select('.c3-axis-y').selectAll('g.tick').size();
expect(ticksSize).toBe(4); // the count starts at initial value and increments by the set interval
});
it('should have specified 60 second intervals', function () {
var prevValue;
d3.select('.c3-axis-y').selectAll('g.tick').each(function (d, i) {
if (i !== 0) {
var result = d - prevValue;
expect(result).toEqual(60000); // expressed in milliseconds
}
prevValue = d;
});
});
});
});
describe('axis.x.tick.values', function () {
describe('function is provided', function () {
var tickGenerator = function () {
var values = [];
for (var i = 0; i <= 300; i += 50) {
values.push(i);
}
return values;
};
beforeEach(function () {
args.axis.x = {
tick: {
values: tickGenerator
}
};
chart = window.c3.generate(args);
window.generatedTicks = tickGenerator(); // This should be removed from window
});
it('should use function to generate ticks', function () {
d3.select('.c3-axis-x').selectAll('g.tick').each(function (d, i) {
var tick = d3.select(this).select('text').text();
expect(+tick).toBe(window.generatedTicks[i]);
});
});
});
});
describe('axis.x.tick.width', function () {
describe('indexed x axis and y/y2 axis', function () {
describe('not rotated', function () {
beforeAll(function () {
args = {
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25]
],
axes: {
data2: 'y2'
}
},
axis: {
y2: {
show: true
}
}
};
});
it('should construct indexed x axis properly', function () {
var ticks = chart.internal.main.select('.c3-axis-x').selectAll('g.tick'),
expectedX = '0',
expectedDy = '.71em';
expect(ticks.size()).toBe(6);
ticks.each(function (d, i) {
var tspans = d3.select(this).selectAll('tspan');
expect(tspans.size()).toBe(1);
tspans.each(function () {
var tspan = d3.select(this);
expect(tspan.text()).toBe(i + '');
expect(tspan.attr('x')).toBe(expectedX);
expect(tspan.attr('dy')).toBe(expectedDy);
});
});
});
describe('should set axis.x.tick.format', function () {
beforeAll(function(){
args.axis.x = {
tick: {
format: function () {
return 'very long tick text on x axis';
}
}
};
});
it('should split x axis tick text to multiple lines', function () {
var ticks = chart.internal.main.select('.c3-axis-x').selectAll('g.tick'),
expectedTexts = ['very long tick text', 'on x axis'],
expectedX = '0';
expect(ticks.size()).toBe(6);
ticks.each(function () {
var tspans = d3.select(this).selectAll('tspan');
expect(tspans.size()).toBe(2);
tspans.each(function (d, i) {
var tspan = d3.select(this);
expect(tspan.text()).toBe(expectedTexts[i]);
expect(tspan.attr('x')).toBe(expectedX);
if (i === 0) {
expect(tspan.attr('dy')).toBe('.71em');
} else {
expect(tspan.attr('dy')).toBeGreaterThan(8);
}
});
});
});
it('should construct y axis properly', function () {
var ticks = chart.internal.main.select('.c3-axis-y').selectAll('g.tick'),
expectedX = '-9',
expectedDy = '3';
expect(ticks.size()).toBe(9);
ticks.each(function (d) {
var tspans = d3.select(this).selectAll('tspan');
expect(tspans.size()).toBe(1);
tspans.each(function () {
var tspan = d3.select(this);
expect(tspan.text()).toBe(d + '');
expect(tspan.attr('x')).toBe(expectedX);
expect(tspan.attr('dy')).toBe(expectedDy);
});
});
});
it('should construct y2 axis properly', function () {
var ticks = chart.internal.main.select('.c3-axis-y2').selectAll('g.tick'),
expectedX = '9',
expectedDy = '3';
expect(ticks.size()).toBe(9);
ticks.each(function (d) {
var tspans = d3.select(this).selectAll('tspan');
expect(tspans.size()).toBe(1);
tspans.each(function () {
var tspan = d3.select(this);
expect(tspan.text()).toBe(d + '');
expect(tspan.attr('x')).toBe(expectedX);
expect(tspan.attr('dy')).toBe(expectedDy);
});
});
});
});
describe('should set big values in y', function () {
beforeAll(function(){
args.data.columns = [
['data1', 3000000000000000, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25]
];
});
it('should not split y axis tick text to multiple lines', function () {
var ticks = chart.internal.main.select('.c3-axis-y2').selectAll('g.tick');
ticks.each(function () {
var tspans = d3.select(this).selectAll('tspan');
expect(tspans.size()).toBe(1);
});
});
});
});
describe('rotated', function () {
beforeAll(function () {
args.axis.rotated = true;
});
it('should split x axis tick text to multiple lines', function () {
var ticks = chart.internal.main.select('.c3-axis-x').selectAll('g.tick'),
expectedTexts = ['very long tick', 'text on x axis'],
expectedX = '-9';
expect(ticks.size()).toBe(6);
ticks.each(function () {
var tspans = d3.select(this).selectAll('tspan');
expect(tspans.size()).toBe(2);
tspans.each(function (d, i) {
var tspan = d3.select(this);
expect(tspan.text()).toBe(expectedTexts[i]);
expect(tspan.attr('x')).toBe(expectedX);
if (i === 0) {
expect(tspan.attr('dy')).toBeLessThan(0);
} else {
expect(tspan.attr('dy')).toBeGreaterThan(9);
}
});
});
});
it('should not split y axis tick text to multiple lines', function () {
var ticks = chart.internal.main.select('.c3-axis-y').selectAll('g.tick'),
expectedTexts = [
'0',
'500000000000000',
'1000000000000000',
'1500000000000000',
'2000000000000000',
'2500000000000000',
'3000000000000000'
],
expectedX = '0',
expectedDy = '.71em';
expect(ticks.size()).toBe(7);
ticks.each(function (d, i) {
var tspans = d3.select(this).selectAll('tspan');
expect(tspans.size()).toBe(1);
tspans.each(function () {
var tspan = d3.select(this);
expect(tspan.text()).toBe(expectedTexts[i]);
expect(tspan.attr('x')).toBe(expectedX);
expect(tspan.attr('dy')).toBe(expectedDy);
});
});
});
});
});
describe('category axis', function () {
describe('not rotated', function () {
beforeAll(function () {
args = {
data: {
x: 'x',
columns: [
['x', 'this is a very long tick text on category axis', 'cat1', 'cat2', 'cat3', 'cat4', 'cat5'],
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25]
]
},
axis: {
x: {
type: 'category'
}
}
};
});
it('should locate ticks properly', function () {
var ticks = chart.internal.main.select('.c3-axis-x').selectAll('g.tick');
ticks.each(function (d, i) {
var tspans = d3.select(this).selectAll('tspan'),
expectedX = '0',
expectedDy = '.71em';
if (i > 0) { // i === 0 should be checked in next test
expect(tspans.size()).toBe(1);
tspans.each(function () {
var tspan = d3.select(this);
expect(tspan.attr('x')).toBe(expectedX);
expect(tspan.attr('dy')).toBe(expectedDy);
});
}
});
});
it('should split tick text properly', function () {
var tick = chart.internal.main.select('.c3-axis-x').select('g.tick'),
tspans = tick.selectAll('tspan'),
expectedTickTexts = [
'this is a very',
'long tick text',
'on category axis'
],
expectedX = '0';
expect(tspans.size()).toBe(3);
tspans.each(function (d, i) {
var tspan = d3.select(this);
expect(tspan.text()).toBe(expectedTickTexts[i]);
expect(tspan.attr('x')).toBe(expectedX);
// unable to define pricise number because it differs depends on environment..
if (i === 0) {
expect(tspan.attr('dy')).toBe('.71em');
} else {
expect(tspan.attr('dy')).toBeGreaterThan(8);
}
});
});
});
describe('rotated', function () {
beforeAll(function () {
args.axis.rotated = true;
});
it('should locate ticks on rotated axis properly', function () {
var ticks = chart.internal.main.select('.c3-axis-x').selectAll('g.tick');
ticks.each(function (d, i) {
var tspans = d3.select(this).selectAll('tspan'),
expectedX = '-9',
expectedDy = '3';
if (i > 0) { // i === 0 should be checked in next test
expect(tspans.size()).toBe(1);
tspans.each(function () {
var tspan = d3.select(this);
expect(tspan.attr('x')).toBe(expectedX);
expect(tspan.attr('dy')).toBe(expectedDy);
});
}
});
});
it('should split tick text on rotated axis properly', function () {
var tick = chart.internal.main.select('.c3-axis-x').select('g.tick'),
tspans = tick.selectAll('tspan'),
expectedTickTexts = [
'this is a very',
'long tick text on',
'category axis'
],
expectedX = '-9';
expect(tspans.size()).toBe(3);
tspans.each(function (d, i) {
var tspan = d3.select(this);
expect(tspan.text()).toBe(expectedTickTexts[i]);
expect(tspan.attr('x')).toBe(expectedX);
// unable to define pricise number because it differs depends on environment..
if (i === 0) {
expect(tspan.attr('dy')).toBeLessThan(0);
} else {
expect(tspan.attr('dy')).toBeGreaterThan(8);
}
});
});
});
describe('option used', function () {
describe('as null', function () {
beforeAll(function () { //'without split ticks',
args.axis.x.tick = {
multiline: false
};
});
it('should split x tick', function () {
var tick = chart.internal.main.select('.c3-axis-x').select('g.tick'),
tspans = tick.selectAll('tspan');
expect(tspans.size()).toBe(1);
});
});
describe('as value', function () {
beforeAll(function () { // 'without split ticks',
args.axis.x.tick = {
width: 150
};
});
it('should split x tick to 2 lines properly', function () {
var tick = chart.internal.main.select('.c3-axis-x').select('g.tick'),
tspans = tick.selectAll('tspan'),
expectedTickTexts = [
'this is a very long tick',
'text on category axis'
],
expectedX = '-9';
expect(tspans.size()).toBe(2);
tspans.each(function (d, i) {
var tspan = d3.select(this);
expect(tspan.text()).toBe(expectedTickTexts[i]);
expect(tspan.attr('x')).toBe(expectedX);
// unable to define pricise number because it differs depends on environment..
if (i === 0) {
expect(tspan.attr('dy')).toBeLessThan(0);
} else {
expect(tspan.attr('dy')).toBeGreaterThan(8);
}
});
});
});
});
});
describe('with axis.x.tick.format', function () {
beforeAll(function () { // 'with axis.x.tick.format',
args.axis.x.tick.format = function () {
return ['this is a very long tick text', 'on category axis'];
};
});
it('should have multiline tick text', function () {
var tick = chart.internal.main.select('.c3-axis-x').select('g.tick'),
tspans = tick.selectAll('tspan'),
expectedTickTexts = ['this is a very long tick text', 'on category axis'];
expect(tspans.size()).toBe(2);
tspans.each(function (d, i) {
var tspan = d3.select(this);
expect(tspan.text()).toBe(expectedTickTexts[i]);
});
});
});
});
describe('axis.x.tick.rotate', function () {
describe('not rotated', function () {
beforeAll(function () {
args = {
data: {
x: 'x',
columns: [
['x', 'category 1', 'category 2', 'category 3', 'category 4', 'category 5', 'category 6'],
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25]
]
},
axis: {
x: {
type: 'category',
tick: {
rotate: 60
}
}
}
};
});
it('should rotate tick texts', function () {
chart.internal.main.selectAll('.c3-axis-x g.tick').each(function () {
var tick = d3.select(this),
text = tick.select('text'),
tspan = text.select('tspan');
expect(text.attr('transform')).toBe('rotate(60)');
expect(text.attr('y')).toBe('1.5');
expect(tspan.attr('dx')).toBe('6.928203230275509');
});
});
it('should have automatically calculated x axis height', function () {
var box = chart.internal.main.select('.c3-axis-x').node().getBoundingClientRect(),
height = chart.internal.getHorizontalAxisHeight('x');
expect(box.height).toBeGreaterThan(50);
expect(height).toBeCloseTo(70, -1);
});
});
});
describe('axis.y.tick.rotate', function () {
describe('not rotated', function () {
beforeAll(function () {
args = {
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250, 100, 600],
['data2', 50, 20, 10, 40, 15, 25],
]
},
axis: {
rotated: true,
y: {
tick: {
rotate: 45
}
}
}
};
});
it('should rotate tick texts', function () {
chart.internal.main.selectAll('.c3-axis-y g.tick').each(function () {
var tick = d3.select(this),
text = tick.select('text'),
tspan = text.select('tspan');
expect(text.attr('transform')).toBe('rotate(45)');
expect(text.attr('y')).toBe('4');
expect(tspan.attr('dx')).toBeCloseTo('5.6', 0);
});
});
it('should have automatically calculated y axis width', function () {
var box = chart.internal.main.select('.c3-axis-y').node().getBoundingClientRect();
expect(box.width).toBeCloseTo(590, 1);
});
});
});
describe('axis.x.tick.fit', function () {
describe('axis.x.tick.fit = true', function () {
beforeAll(function () { // 'should set args for indexed data',
args = {
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25],
['data3', 150, 120, 110, 140, 115, 125]
]
}
};
});
it('should show fitted ticks on indexed data', function () {
var ticks = chart.internal.main.selectAll('.c3-axis-x g.tick');
expect(ticks.size()).toBe(6);
});
describe('should set args for x-based data', function () {
beforeAll(function(){
args = {
data: {
x: 'x',
columns: [
['x', 10, 20, 100, 110, 200, 1000],
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25],
['data3', 150, 120, 110, 140, 115, 125]
]
}
};
});
it('should show fitted ticks on indexed data', function () {
var ticks = chart.internal.main.selectAll('.c3-axis-x g.tick');
expect(ticks.size()).toBe(6);
});
it('should show fitted ticks after hide and show', function () {
chart.hide();
chart.show();
var ticks = chart.internal.main.selectAll('.c3-axis-x g.tick');
expect(ticks.size()).toBe(6);
});
});
});
describe('axis.x.tick.fit = false', function () {
describe('should set args for indexed data', function () {
beforeAll(function(){
args = {
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25],
['data3', 150, 120, 110, 140, 115, 125]
]
},
axis: {
x: {
tick: {
fit: false
}
}
}
};
});
it('should show fitted ticks on indexed data', function () {
var ticks = chart.internal.main.selectAll('.c3-axis-x g.tick');
expect(ticks.size()).toBe(11);
});
});
describe('should set args for x-based data', function () {
beforeAll(function(){
args.data = {
x: 'x',
columns: [
['x', 10, 20, 100, 110, 200, 1000],
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25],
['data3', 150, 120, 110, 140, 115, 125]
]
};
});
it('should show fitted ticks on indexed data', function () {
var ticks = chart.internal.main.selectAll('.c3-axis-x g.tick');
expect(ticks.size()).toBe(10);
});
it('should show fitted ticks after hide and show', function () {
chart.hide();
chart.show();
var ticks = chart.internal.main.selectAll('.c3-axis-x g.tick');
expect(ticks.size()).toBe(10);
});
});
});
});
describe('axis.y.inner', function () {
beforeAll(function () {
args = {
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25]
]
},
axis: {
y: {
inner: false
}
}
};
});
it('should not have inner y axis', function () {
var paddingLeft = chart.internal.getCurrentPaddingLeft(),
tickTexts = chart.internal.main.selectAll('.c3-axis-y g.tick text');
expect(paddingLeft).toBeGreaterThan(19);
tickTexts.each(function () {
expect(+d3.select(this).attr('x')).toBeLessThan(0);
});
});
describe('with inner y axis', function () {
beforeAll(function(){
args.axis.y.inner = true;
});
it('should have inner y axis', function () {
var paddingLeft = chart.internal.getCurrentPaddingLeft(),
tickTexts = chart.internal.main.selectAll('.c3-axis-y g.tick text');
expect(paddingLeft).toBe(1);
tickTexts.each(function () {
expect(+d3.select(this).attr('x')).toBeGreaterThan(0);
});
});
});
});
describe('axis.y2.inner', function () {
beforeAll(function () {
args = {
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25]
]
},
axis: {
y2: {
show: true,
inner: false
}
}
};
});
it('should not have inner y axis', function () {
var paddingRight = chart.internal.getCurrentPaddingRight(),
tickTexts = chart.internal.main.selectAll('.c3-axis-2y g.tick text');
expect(paddingRight).toBeGreaterThan(19);
tickTexts.each(function () {
expect(+d3.select(this).attr('x')).toBeGreaterThan(0);
});
});
describe('with inner y axis', function () {
beforeAll(function(){
args.axis.y2.inner = true;
});
it('should have inner y axis', function () {
var paddingRight = chart.internal.getCurrentPaddingRight(),
tickTexts = chart.internal.main.selectAll('.c3-axis-2y g.tick text');
expect(paddingRight).toBe(2);
tickTexts.each(function () {
expect(+d3.select(this).attr('x')).toBeLessThan(0);
});
});
});
});
});