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// Test the rectangle element
describe('Rectangle element tests', function() {
it ('Should be constructed', function() {
var rectangle = new Chart.elements.Rectangle({
_datasetIndex: 2,
_index: 1
});
expect(rectangle).not.toBe(undefined);
expect(rectangle._datasetIndex).toBe(2);
expect(rectangle._index).toBe(1);
});
it ('Should correctly identify as in range', function() {
var rectangle = new Chart.elements.Rectangle({
_datasetIndex: 2,
_index: 1
});
// Safely handles if these are called before the viewmodel is instantiated
expect(rectangle.inRange(5)).toBe(false);
expect(rectangle.inLabelRange(5)).toBe(false);
// Attach a view object as if we were the controller
rectangle._view = {
base: 0,
width: 4,
x: 10,
y: 15
};
expect(rectangle.inRange(10, 15)).toBe(true);
expect(rectangle.inRange(10, 10)).toBe(true);
expect(rectangle.inRange(10, 16)).toBe(false);
expect(rectangle.inRange(5, 5)).toBe(false);
expect(rectangle.inLabelRange(5)).toBe(false);
expect(rectangle.inLabelRange(7)).toBe(false);
expect(rectangle.inLabelRange(10)).toBe(true);
expect(rectangle.inLabelRange(12)).toBe(true);
expect(rectangle.inLabelRange(15)).toBe(false);
expect(rectangle.inLabelRange(20)).toBe(false);
// Test when the y is below the base (negative bar)
var negativeRectangle = new Chart.elements.Rectangle({
_datasetIndex: 2,
_index: 1
});
// Attach a view object as if we were the controller
negativeRectangle._view = {
base: 0,
width: 4,
x: 10,
y: -15
};
expect(negativeRectangle.inRange(10, -16)).toBe(false);
expect(negativeRectangle.inRange(10, 1)).toBe(false);
expect(negativeRectangle.inRange(10, -5)).toBe(true);
});
it ('should get the correct height', function() {
var rectangle = new Chart.elements.Rectangle({
_datasetIndex: 2,
_index: 1
});
// Attach a view object as if we were the controller
rectangle._view = {
base: 0,
width: 4,
x: 10,
y: 15
};
expect(rectangle.height()).toBe(-15);
// Test when the y is below the base (negative bar)
var negativeRectangle = new Chart.elements.Rectangle({
_datasetIndex: 2,
_index: 1
});
// Attach a view object as if we were the controller
negativeRectangle._view = {
base: -10,
width: 4,
x: 10,
y: -15
};
expect(negativeRectangle.height()).toBe(5);
});
it ('should get the correct tooltip position', function() {
var rectangle = new Chart.elements.Rectangle({
_datasetIndex: 2,
_index: 1
});
// Attach a view object as if we were the controller
rectangle._view = {
base: 0,
width: 4,
x: 10,
y: 15
};
expect(rectangle.tooltipPosition()).toEqual({
x: 10,
y: 15,
});
// Test when the y is below the base (negative bar)
var negativeRectangle = new Chart.elements.Rectangle({
_datasetIndex: 2,
_index: 1
});
// Attach a view object as if we were the controller
negativeRectangle._view = {
base: -10,
width: 4,
x: 10,
y: -15
};
expect(negativeRectangle.tooltipPosition()).toEqual({
x: 10,
y: -15,
});
});
it ('should draw correctly', function() {
var mockContext = window.createMockContext();
var rectangle = new Chart.elements.Rectangle({
_datasetIndex: 2,
_index: 1,
_chart: {
ctx: mockContext,
}
});
// Attach a view object as if we were the controller
rectangle._view = {
backgroundColor: 'rgb(255, 0, 0)',
base: 0,
borderColor: 'rgb(0, 0, 255)',
borderWidth: 1,
ctx: mockContext,
width: 4,
x: 10,
y: 15,
};
rectangle.draw();
expect(mockContext.getCalls()).toEqual([{
name: 'beginPath',
args: [],
}, {
name: 'setFillStyle',
args: ['rgb(255, 0, 0)']
}, {
name: 'setStrokeStyle',
args: ['rgb(0, 0, 255)'],
}, {
name: 'setLineWidth',
args: [1]
}, {
name: 'moveTo',
args: [8.5, 0]
}, {
name: 'lineTo',
args: [8.5, 15.5]
}, {
name: 'lineTo',
args: [11.5, 15.5]
}, {
name: 'lineTo',
args: [11.5, 0]
}, {
name: 'fill',
args: [],
}, {
name: 'stroke',
args: []
}]);
});
it ('should draw correctly with no stroke', function() {
var mockContext = window.createMockContext();
var rectangle = new Chart.elements.Rectangle({
_datasetIndex: 2,
_index: 1,
_chart: {
ctx: mockContext,
}
});
// Attach a view object as if we were the controller
rectangle._view = {
backgroundColor: 'rgb(255, 0, 0)',
base: 0,
borderColor: 'rgb(0, 0, 255)',
ctx: mockContext,
width: 4,
x: 10,
y: 15,
};
rectangle.draw();
expect(mockContext.getCalls()).toEqual([{
name: 'beginPath',
args: [],
}, {
name: 'setFillStyle',
args: ['rgb(255, 0, 0)']
}, {
name: 'setStrokeStyle',
args: ['rgb(0, 0, 255)'],
}, {
name: 'setLineWidth',
args: [undefined]
}, {
name: 'moveTo',
args: [8, 0]
}, {
name: 'lineTo',
args: [8, 15]
}, {
name: 'lineTo',
args: [12, 15]
}, {
name: 'lineTo',
args: [12, 0]
}, {
name: 'fill',
args: [],
}]);
});
function testBorderSkipped (borderSkipped, expectedDrawCalls) {
var mockContext = window.createMockContext();
var rectangle = new Chart.elements.Rectangle({
_chart: { ctx: mockContext }
});
// Attach a view object as if we were the controller
rectangle._view = {
borderSkipped: borderSkipped, // set tested 'borderSkipped' parameter
ctx: mockContext,
base: 0,
width: 4,
x: 10,
y: 15,
};
rectangle.draw();
var drawCalls = rectangle._view.ctx.getCalls().splice(4, 4);
expect(drawCalls).toEqual(expectedDrawCalls);
}
it ('should draw correctly respecting "borderSkipped" == "bottom"', function() {
testBorderSkipped ('bottom', [
{ name: 'moveTo', args: [8, 0] },
{ name: 'lineTo', args: [8, 15] },
{ name: 'lineTo', args: [12, 15] },
{ name: 'lineTo', args: [12, 0] },
]);
});
it ('should draw correctly respecting "borderSkipped" == "left"', function() {
testBorderSkipped ('left', [
{ name: 'moveTo', args: [8, 15] },
{ name: 'lineTo', args: [12, 15] },
{ name: 'lineTo', args: [12, 0] },
{ name: 'lineTo', args: [8, 0] },
]);
});
it ('should draw correctly respecting "borderSkipped" == "top"', function() {
testBorderSkipped ('top', [
{ name: 'moveTo', args: [12, 15] },
{ name: 'lineTo', args: [12, 0] },
{ name: 'lineTo', args: [8, 0] },
{ name: 'lineTo', args: [8, 15] },
]);
});
it ('should draw correctly respecting "borderSkipped" == "right"', function() {
testBorderSkipped ('right', [
{ name: 'moveTo', args: [12, 0] },
{ name: 'lineTo', args: [8, 0] },
{ name: 'lineTo', args: [8, 15] },
{ name: 'lineTo', args: [12, 15] },
]);
});
});