/
core.ticks.tests.js
96 lines (90 loc) · 2.29 KB
/
core.ticks.tests.js
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describe('Test tick generators', function() {
// formatters are used as default config values so users want to be able to reference them
it('Should expose formatters api', function() {
expect(typeof Chart.Ticks).toBeDefined();
expect(typeof Chart.Ticks.formatters).toBeDefined();
expect(typeof Chart.Ticks.formatters.values).toBe('function');
expect(typeof Chart.Ticks.formatters.linear).toBe('function');
expect(typeof Chart.Ticks.formatters.logarithmic).toBe('function');
});
it('Should generate linear spaced ticks with correct precision', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
data: []
}],
},
options: {
legend: {
display: false,
},
scales: {
xAxes: [{
type: 'linear',
position: 'bottom',
ticks: {
callback: function(value) {
return value.toString();
}
}
}],
yAxes: [{
type: 'linear',
ticks: {
callback: function(value) {
return value.toString();
}
}
}]
}
}
});
var xAxis = chart.scales['x-axis-0'];
var yAxis = chart.scales['y-axis-0'];
expect(xAxis.ticks).toEqual(['0', '0.1', '0.2', '0.3', '0.4', '0.5', '0.6', '0.7', '0.8', '0.9', '1']);
expect(yAxis.ticks).toEqual(['1', '0.9', '0.8', '0.7', '0.6', '0.5', '0.4', '0.3', '0.2', '0.1', '0']);
});
it('Should generate logarithmic spaced ticks with correct precision', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
data: []
}],
},
options: {
legend: {
display: false,
},
scales: {
xAxes: [{
type: 'logarithmic',
position: 'bottom',
ticks: {
min: 0.1,
max: 1,
callback: function(value) {
return value.toString();
}
}
}],
yAxes: [{
type: 'logarithmic',
ticks: {
min: 0.1,
max: 1,
callback: function(value) {
return value.toString();
}
}
}]
}
}
});
var xAxis = chart.scales['x-axis-0'];
var yAxis = chart.scales['y-axis-0'];
expect(xAxis.ticks).toEqual(['0.1', '0.2', '0.3', '0.4', '0.5', '0.6', '0.7', '0.8', '0.9', '1']);
expect(yAxis.ticks).toEqual(['1', '0.9', '0.8', '0.7', '0.6', '0.5', '0.4', '0.3', '0.2', '0.1']);
});
});