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core.tooltip.tests.js
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core.tooltip.tests.js
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// Test the rectangle element
describe('Core.Tooltip', function() {
describe('auto', jasmine.fixture.specs('core.tooltip'));
describe('config', function() {
it('should not include the dataset label in the body string if not defined', function() {
var data = {
datasets: [{
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
};
var tooltipItem = {
index: 1,
datasetIndex: 0,
xLabel: 'Point 2',
yLabel: '20'
};
var label = Chart.defaults.global.tooltips.callbacks.label(tooltipItem, data);
expect(label).toBe('20');
data.datasets[0].label = 'My dataset';
label = Chart.defaults.global.tooltips.callbacks.label(tooltipItem, data);
expect(label).toBe('My dataset: 20');
});
});
describe('index mode', function() {
it('Should only use x distance when intersect is false', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'index',
intersect: false,
},
hover: {
mode: 'index',
intersect: false
}
}
});
// Trigger an event over top of the
var meta = chart.getDatasetMeta(0);
var point = meta.data[1];
var node = chart.canvas;
var rect = node.getBoundingClientRect();
var evt = new MouseEvent('mousemove', {
view: window,
bubbles: true,
cancelable: true,
clientX: rect.left + point._model.x,
clientY: 0
});
// Manually trigger rather than having an async test
node.dispatchEvent(evt);
// Check and see if tooltip was displayed
var tooltip = chart.tooltip;
var globalDefaults = Chart.defaults.global;
expect(tooltip._view).toEqual(jasmine.objectContaining({
// Positioning
xPadding: 6,
yPadding: 6,
xAlign: 'left',
yAlign: 'center',
// Body
bodyFontColor: '#fff',
_bodyFontFamily: globalDefaults.defaultFontFamily,
_bodyFontStyle: globalDefaults.defaultFontStyle,
_bodyAlign: 'left',
bodyFontSize: globalDefaults.defaultFontSize,
bodySpacing: 2,
// Title
titleFontColor: '#fff',
_titleFontFamily: globalDefaults.defaultFontFamily,
_titleFontStyle: 'bold',
titleFontSize: globalDefaults.defaultFontSize,
_titleAlign: 'left',
titleSpacing: 2,
titleMarginBottom: 6,
// Footer
footerFontColor: '#fff',
_footerFontFamily: globalDefaults.defaultFontFamily,
_footerFontStyle: 'bold',
footerFontSize: globalDefaults.defaultFontSize,
_footerAlign: 'left',
footerSpacing: 2,
footerMarginTop: 6,
// Appearance
caretSize: 5,
cornerRadius: 6,
backgroundColor: 'rgba(0,0,0,0.8)',
opacity: 1,
legendColorBackground: '#fff',
displayColors: true,
// Text
title: ['Point 2'],
beforeBody: [],
body: [{
before: [],
lines: ['Dataset 1: 20'],
after: []
}, {
before: [],
lines: ['Dataset 2: 40'],
after: []
}],
afterBody: [],
footer: [],
caretPadding: 2,
labelColors: [{
borderColor: globalDefaults.defaultColor,
backgroundColor: globalDefaults.defaultColor
}, {
borderColor: globalDefaults.defaultColor,
backgroundColor: globalDefaults.defaultColor
}]
}));
expect(tooltip._view.x).toBeCloseToPixel(267);
expect(tooltip._view.y).toBeCloseToPixel(155);
});
it('Should only display if intersecting if intersect is set', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'index',
intersect: true
}
}
});
// Trigger an event over top of the
var meta = chart.getDatasetMeta(0);
var point = meta.data[1];
var node = chart.canvas;
var rect = node.getBoundingClientRect();
var evt = new MouseEvent('mousemove', {
view: window,
bubbles: true,
cancelable: true,
clientX: rect.left + point._model.x,
clientY: 0
});
// Manually trigger rather than having an async test
node.dispatchEvent(evt);
// Check and see if tooltip was displayed
var tooltip = chart.tooltip;
var globalDefaults = Chart.defaults.global;
expect(tooltip._view).toEqual(jasmine.objectContaining({
// Positioning
xPadding: 6,
yPadding: 6,
// Body
bodyFontColor: '#fff',
_bodyFontFamily: globalDefaults.defaultFontFamily,
_bodyFontStyle: globalDefaults.defaultFontStyle,
_bodyAlign: 'left',
bodyFontSize: globalDefaults.defaultFontSize,
bodySpacing: 2,
// Title
titleFontColor: '#fff',
_titleFontFamily: globalDefaults.defaultFontFamily,
_titleFontStyle: 'bold',
titleFontSize: globalDefaults.defaultFontSize,
_titleAlign: 'left',
titleSpacing: 2,
titleMarginBottom: 6,
// Footer
footerFontColor: '#fff',
_footerFontFamily: globalDefaults.defaultFontFamily,
_footerFontStyle: 'bold',
footerFontSize: globalDefaults.defaultFontSize,
_footerAlign: 'left',
footerSpacing: 2,
footerMarginTop: 6,
// Appearance
caretSize: 5,
cornerRadius: 6,
backgroundColor: 'rgba(0,0,0,0.8)',
opacity: 0,
legendColorBackground: '#fff',
displayColors: true,
}));
});
});
it('Should display in single mode', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'single'
}
}
});
// Trigger an event over top of the
var meta = chart.getDatasetMeta(0);
var point = meta.data[1];
var node = chart.canvas;
var rect = node.getBoundingClientRect();
var evt = new MouseEvent('mousemove', {
view: window,
bubbles: true,
cancelable: true,
clientX: rect.left + point._model.x,
clientY: rect.top + point._model.y
});
// Manually trigger rather than having an async test
node.dispatchEvent(evt);
// Check and see if tooltip was displayed
var tooltip = chart.tooltip;
var globalDefaults = Chart.defaults.global;
expect(tooltip._view).toEqual(jasmine.objectContaining({
// Positioning
xPadding: 6,
yPadding: 6,
xAlign: 'left',
yAlign: 'center',
// Body
bodyFontColor: '#fff',
_bodyFontFamily: globalDefaults.defaultFontFamily,
_bodyFontStyle: globalDefaults.defaultFontStyle,
_bodyAlign: 'left',
bodyFontSize: globalDefaults.defaultFontSize,
bodySpacing: 2,
// Title
titleFontColor: '#fff',
_titleFontFamily: globalDefaults.defaultFontFamily,
_titleFontStyle: 'bold',
titleFontSize: globalDefaults.defaultFontSize,
_titleAlign: 'left',
titleSpacing: 2,
titleMarginBottom: 6,
// Footer
footerFontColor: '#fff',
_footerFontFamily: globalDefaults.defaultFontFamily,
_footerFontStyle: 'bold',
footerFontSize: globalDefaults.defaultFontSize,
_footerAlign: 'left',
footerSpacing: 2,
footerMarginTop: 6,
// Appearance
caretSize: 5,
cornerRadius: 6,
backgroundColor: 'rgba(0,0,0,0.8)',
opacity: 1,
legendColorBackground: '#fff',
displayColors: true,
// Text
title: ['Point 2'],
beforeBody: [],
body: [{
before: [],
lines: ['Dataset 1: 20'],
after: []
}],
afterBody: [],
footer: [],
caretPadding: 2,
labelTextColors: ['#fff'],
labelColors: [{
borderColor: globalDefaults.defaultColor,
backgroundColor: globalDefaults.defaultColor
}]
}));
expect(tooltip._view.x).toBeCloseToPixel(267);
expect(tooltip._view.y).toBeCloseToPixel(312);
});
it('Should display information from user callbacks', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'label',
callbacks: {
beforeTitle: function() {
return 'beforeTitle';
},
title: function() {
return 'title';
},
afterTitle: function() {
return 'afterTitle';
},
beforeBody: function() {
return 'beforeBody';
},
beforeLabel: function() {
return 'beforeLabel';
},
label: function() {
return 'label';
},
afterLabel: function() {
return 'afterLabel';
},
afterBody: function() {
return 'afterBody';
},
beforeFooter: function() {
return 'beforeFooter';
},
footer: function() {
return 'footer';
},
afterFooter: function() {
return 'afterFooter';
},
labelTextColor: function() {
return 'labelTextColor';
}
}
}
}
});
// Trigger an event over top of the
var meta = chart.getDatasetMeta(0);
var point = meta.data[1];
var node = chart.canvas;
var rect = node.getBoundingClientRect();
var evt = new MouseEvent('mousemove', {
view: window,
bubbles: true,
cancelable: true,
clientX: rect.left + point._model.x,
clientY: rect.top + point._model.y
});
// Manually trigger rather than having an async test
node.dispatchEvent(evt);
// Check and see if tooltip was displayed
var tooltip = chart.tooltip;
var globalDefaults = Chart.defaults.global;
expect(tooltip._view).toEqual(jasmine.objectContaining({
// Positioning
xPadding: 6,
yPadding: 6,
xAlign: 'center',
yAlign: 'top',
// Body
bodyFontColor: '#fff',
_bodyFontFamily: globalDefaults.defaultFontFamily,
_bodyFontStyle: globalDefaults.defaultFontStyle,
_bodyAlign: 'left',
bodyFontSize: globalDefaults.defaultFontSize,
bodySpacing: 2,
// Title
titleFontColor: '#fff',
_titleFontFamily: globalDefaults.defaultFontFamily,
_titleFontStyle: 'bold',
titleFontSize: globalDefaults.defaultFontSize,
_titleAlign: 'left',
titleSpacing: 2,
titleMarginBottom: 6,
// Footer
footerFontColor: '#fff',
_footerFontFamily: globalDefaults.defaultFontFamily,
_footerFontStyle: 'bold',
footerFontSize: globalDefaults.defaultFontSize,
_footerAlign: 'left',
footerSpacing: 2,
footerMarginTop: 6,
// Appearance
caretSize: 5,
cornerRadius: 6,
backgroundColor: 'rgba(0,0,0,0.8)',
opacity: 1,
legendColorBackground: '#fff',
// Text
title: ['beforeTitle', 'title', 'afterTitle'],
beforeBody: ['beforeBody'],
body: [{
before: ['beforeLabel'],
lines: ['label'],
after: ['afterLabel']
}, {
before: ['beforeLabel'],
lines: ['label'],
after: ['afterLabel']
}],
afterBody: ['afterBody'],
footer: ['beforeFooter', 'footer', 'afterFooter'],
caretPadding: 2,
labelTextColors: ['labelTextColor', 'labelTextColor'],
labelColors: [{
borderColor: globalDefaults.defaultColor,
backgroundColor: globalDefaults.defaultColor
}, {
borderColor: globalDefaults.defaultColor,
backgroundColor: globalDefaults.defaultColor
}]
}));
expect(tooltip._view.x).toBeCloseToPixel(214);
expect(tooltip._view.y).toBeCloseToPixel(190);
});
it('Should allow sorting items', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'label',
itemSort: function(a, b) {
return a.datasetIndex > b.datasetIndex ? -1 : 1;
}
}
}
});
// Trigger an event over top of the
var meta0 = chart.getDatasetMeta(0);
var point0 = meta0.data[1];
var node = chart.canvas;
var rect = node.getBoundingClientRect();
var evt = new MouseEvent('mousemove', {
view: window,
bubbles: true,
cancelable: true,
clientX: rect.left + point0._model.x,
clientY: rect.top + point0._model.y
});
// Manually trigger rather than having an async test
node.dispatchEvent(evt);
// Check and see if tooltip was displayed
var tooltip = chart.tooltip;
var globalDefaults = Chart.defaults.global;
expect(tooltip._view).toEqual(jasmine.objectContaining({
// Positioning
xAlign: 'left',
yAlign: 'center',
// Text
title: ['Point 2'],
beforeBody: [],
body: [{
before: [],
lines: ['Dataset 2: 40'],
after: []
}, {
before: [],
lines: ['Dataset 1: 20'],
after: []
}],
afterBody: [],
footer: [],
labelColors: [{
borderColor: globalDefaults.defaultColor,
backgroundColor: globalDefaults.defaultColor
}, {
borderColor: globalDefaults.defaultColor,
backgroundColor: globalDefaults.defaultColor
}]
}));
expect(tooltip._view.x).toBeCloseToPixel(267);
expect(tooltip._view.y).toBeCloseToPixel(155);
});
it('should filter items from the tooltip using the callback', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)',
tooltipHidden: true
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'label',
filter: function(tooltipItem, data) {
// For testing purposes remove the first dataset that has a tooltipHidden property
return !data.datasets[tooltipItem.datasetIndex].tooltipHidden;
}
}
}
});
// Trigger an event over top of the
var meta0 = chart.getDatasetMeta(0);
var point0 = meta0.data[1];
var node = chart.canvas;
var rect = node.getBoundingClientRect();
var evt = new MouseEvent('mousemove', {
view: window,
bubbles: true,
cancelable: true,
clientX: rect.left + point0._model.x,
clientY: rect.top + point0._model.y
});
// Manually trigger rather than having an async test
node.dispatchEvent(evt);
// Check and see if tooltip was displayed
var tooltip = chart.tooltip;
var globalDefaults = Chart.defaults.global;
expect(tooltip._view).toEqual(jasmine.objectContaining({
// Positioning
xAlign: 'left',
yAlign: 'center',
// Text
title: ['Point 2'],
beforeBody: [],
body: [{
before: [],
lines: ['Dataset 2: 40'],
after: []
}],
afterBody: [],
footer: [],
labelColors: [{
borderColor: globalDefaults.defaultColor,
backgroundColor: globalDefaults.defaultColor
}]
}));
});
it('should set the caretPadding based on a config setting', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)',
tooltipHidden: true
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
caretPadding: 10
}
}
});
// Trigger an event over top of the
var meta0 = chart.getDatasetMeta(0);
var point0 = meta0.data[1];
var node = chart.canvas;
var rect = node.getBoundingClientRect();
var evt = new MouseEvent('mousemove', {
view: window,
bubbles: true,
cancelable: true,
clientX: rect.left + point0._model.x,
clientY: rect.top + point0._model.y
});
// Manually trigger rather than having an async test
node.dispatchEvent(evt);
// Check and see if tooltip was displayed
var tooltip = chart.tooltip;
expect(tooltip._model).toEqual(jasmine.objectContaining({
// Positioning
caretPadding: 10,
}));
});
['line', 'bar', 'horizontalBar'].forEach(function(type) {
it('Should have dataPoints in a ' + type + ' chart', function() {
var chart = window.acquireChart({
type: type,
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'single'
}
}
});
// Trigger an event over top of the element
var pointIndex = 1;
var datasetIndex = 0;
var point = chart.getDatasetMeta(datasetIndex).data[pointIndex];
jasmine.triggerMouseEvent(chart, 'mousemove', point);
// Check and see if tooltip was displayed
var tooltip = chart.tooltip;
expect(tooltip._view instanceof Object).toBe(true);
expect(tooltip._view.dataPoints instanceof Array).toBe(true);
expect(tooltip._view.dataPoints.length).toBe(1);
var tooltipItem = tooltip._view.dataPoints[0];
expect(tooltipItem.index).toBe(pointIndex);
expect(tooltipItem.datasetIndex).toBe(datasetIndex);
var indexLabel = type !== 'horizontalBar' ? 'xLabel' : 'yLabel';
expect(typeof tooltipItem[indexLabel]).toBe('string');
expect(tooltipItem[indexLabel]).toBe(chart.data.labels[pointIndex]);
var valueLabel = type !== 'horizontalBar' ? 'yLabel' : 'xLabel';
expect(typeof tooltipItem[valueLabel]).toBe('number');
expect(tooltipItem[valueLabel]).toBe(chart.data.datasets[datasetIndex].data[pointIndex]);
expect(typeof tooltipItem.label).toBe('string');
expect(tooltipItem.label).toBe(chart.data.labels[pointIndex]);
expect(typeof tooltipItem.value).toBe('string');
expect(tooltipItem.value).toBe('' + chart.data.datasets[datasetIndex].data[pointIndex]);
expect(tooltipItem.x).toBeCloseToPixel(point._model.x);
expect(tooltipItem.y).toBeCloseToPixel(point._model.y);
});
});
it('Should not update if active element has not changed', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'single',
callbacks: {
title: function() {
return 'registering callback...';
}
}
}
}
});
// Trigger an event over top of the
var meta = chart.getDatasetMeta(0);
var firstPoint = meta.data[1];
var node = chart.chart.canvas;
var rect = node.getBoundingClientRect();
var firstEvent = new MouseEvent('mousemove', {
view: window,
bubbles: false,
cancelable: true,
clientX: rect.left + firstPoint._model.x,
clientY: rect.top + firstPoint._model.y
});
var tooltip = chart.tooltip;
spyOn(tooltip, 'update');
/* Manually trigger rather than having an async test */
// First dispatch change event, should update tooltip
node.dispatchEvent(firstEvent);
expect(tooltip.update).toHaveBeenCalledWith(true);
// Reset calls
tooltip.update.calls.reset();
// Second dispatch change event (same event), should not update tooltip
node.dispatchEvent(firstEvent);
expect(tooltip.update).not.toHaveBeenCalled();
});
describe('positioners', function() {
it('Should call custom positioner with correct parameters and scope', function() {
Chart.Tooltip.positioners.test = function() {
return {x: 0, y: 0};
};
spyOn(Chart.Tooltip.positioners, 'test').and.callThrough();
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'nearest',
position: 'test'
}
}
});
// Trigger an event over top of the
var pointIndex = 1;
var datasetIndex = 0;
var meta = chart.getDatasetMeta(datasetIndex);
var point = meta.data[pointIndex];
var node = chart.canvas;
var rect = node.getBoundingClientRect();
var evt = new MouseEvent('mousemove', {
view: window,
bubbles: true,
cancelable: true,
clientX: rect.left + point._model.x,
clientY: rect.top + point._model.y
});
// Manually trigger rather than having an async test
node.dispatchEvent(evt);
var fn = Chart.Tooltip.positioners.test;
expect(fn.calls.count()).toBe(1);
expect(fn.calls.first().args[0] instanceof Array).toBe(true);
expect(fn.calls.first().args[1].hasOwnProperty('x')).toBe(true);
expect(fn.calls.first().args[1].hasOwnProperty('y')).toBe(true);
expect(fn.calls.first().object instanceof Chart.Tooltip).toBe(true);
});
});
it('Should avoid tooltip truncation in x axis if there is enough space to show tooltip without truncation', function() {
var chart = window.acquireChart({
type: 'pie',
data: {
datasets: [{
data: [
50,
50
],
backgroundColor: [
'rgb(255, 0, 0)',
'rgb(0, 255, 0)'
],
label: 'Dataset 1'
}],
labels: [
'Red long tooltip text to avoid unnecessary loop steps',
'Green long tooltip text to avoid unnecessary loop steps'
]
},
options: {
responsive: true,
animation: {
// without this slice center point is calculated wrong
animateRotate: false
}
}
});
// Trigger an event over top of the slice
for (var slice = 0; slice < 2; slice++) {
var meta = chart.getDatasetMeta(0);
var point = meta.data[slice].getCenterPoint();
var tooltipPosition = meta.data[slice].tooltipPosition();
var node = chart.canvas;
var rect = node.getBoundingClientRect();
var mouseMoveEvent = new MouseEvent('mousemove', {
view: window,
bubbles: true,
cancelable: true,
clientX: rect.left + point.x,
clientY: rect.top + point.y
});
var mouseOutEvent = new MouseEvent('mouseout');
// Lets cycle while tooltip is narrower than chart area
var infiniteCycleDefense = 70;
for (var i = 0; i < infiniteCycleDefense; i++) {
chart.config.data.labels[slice] = chart.config.data.labels[slice] + 'l';
chart.update();
node.dispatchEvent(mouseOutEvent);
node.dispatchEvent(mouseMoveEvent);
var model = chart.tooltip._model;
expect(model.x).toBeGreaterThanOrEqual(0);
if (model.width <= chart.width) {
expect(model.x + model.width).toBeLessThanOrEqual(chart.width);
}
expect(model.caretX).toBeCloseToPixel(tooltipPosition.x);
// if tooltip is longer than chart area then all tests done
if (model.width > chart.width) {
break;
}
}
}
});
it('Should split newlines into separate lines in user callbacks', function() {
var chart = window.acquireChart({
type: 'line',
data: {
datasets: [{
label: 'Dataset 1',
data: [10, 20, 30],
pointHoverBorderColor: 'rgb(255, 0, 0)',
pointHoverBackgroundColor: 'rgb(0, 255, 0)'
}, {
label: 'Dataset 2',
data: [40, 40, 40],
pointHoverBorderColor: 'rgb(0, 0, 255)',
pointHoverBackgroundColor: 'rgb(0, 255, 255)'
}],
labels: ['Point 1', 'Point 2', 'Point 3']
},
options: {
tooltips: {
mode: 'label',
callbacks: {
beforeTitle: function() {
return 'beforeTitle\nnewline';
},
title: function() {
return 'title\nnewline';
},
afterTitle: function() {
return 'afterTitle\nnewline';
},
beforeBody: function() {
return 'beforeBody\nnewline';
},
beforeLabel: function() {
return 'beforeLabel\nnewline';
},
label: function() {
return 'label';
},
afterLabel: function() {
return 'afterLabel\nnewline';
},
afterBody: function() {
return 'afterBody\nnewline';
},
beforeFooter: function() {
return 'beforeFooter\nnewline';