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Arc element tests

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This commit is contained in:
Evert Timberg 2015-08-29 12:31:44 -04:00
parent 26684b6371
commit 17c075eb0e
3 changed files with 199 additions and 12 deletions
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27
src/elements/element.arc.js
View File

@ -37,21 +37,24 @@
var vm = this._view;
var pointRelativePosition = helpers.getAngleFromPoint(vm, {
x: chartX,
y: chartY
});
if (vm) {
var pointRelativePosition = helpers.getAngleFromPoint(vm, {
x: chartX,
y: chartY
});
// Put into the range of (-PI/2, 3PI/2]
var startAngle = vm.startAngle < (-0.5 * Math.PI) ? vm.startAngle + (2.0 * Math.PI) : vm.startAngle > (1.5 * Math.PI) ? vm.startAngle - (2.0 * Math.PI) : vm.startAngle;
var endAngle = vm.endAngle < (-0.5 * Math.PI) ? vm.endAngle + (2.0 * Math.PI) : vm.endAngle > (1.5 * Math.PI) ? vm.endAngle - (2.0 * Math.PI) : vm.endAngle
// Put into the range of (-PI/2, 3PI/2]
var startAngle = vm.startAngle < (-0.5 * Math.PI) ? vm.startAngle + (2.0 * Math.PI) : vm.startAngle > (1.5 * Math.PI) ? vm.startAngle - (2.0 * Math.PI) : vm.startAngle;
var endAngle = vm.endAngle < (-0.5 * Math.PI) ? vm.endAngle + (2.0 * Math.PI) : vm.endAngle > (1.5 * Math.PI) ? vm.endAngle - (2.0 * Math.PI) : vm.endAngle
//Check if within the range of the open/close angle
var betweenAngles = (pointRelativePosition.angle >= startAngle && pointRelativePosition.angle <= endAngle),
withinRadius = (pointRelativePosition.distance >= vm.innerRadius && pointRelativePosition.distance <= vm.outerRadius);
//Check if within the range of the open/close angle
var betweenAngles = (pointRelativePosition.angle >= startAngle && pointRelativePosition.angle <= endAngle),
withinRadius = (pointRelativePosition.distance >= vm.innerRadius && pointRelativePosition.distance <= vm.outerRadius);
return (betweenAngles && withinRadius);
//Ensure within the outside of the arc centre, but inside arc outer
return (betweenAngles && withinRadius);
} else {
return false;
}
},
tooltipPosition: function() {
var vm = this._view;

176
test/element.arc.tests.js Normal file
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@ -0,0 +1,176 @@
// Test the rectangle element
describe('Arc element tests', function() {
it ('Should be constructed', function() {
var arc = new Chart.elements.Arc({
_datasetIndex: 2,
_index: 1
});
expect(arc).not.toBe(undefined);
expect(arc._datasetIndex).toBe(2);
expect(arc._index).toBe(1);
});
it ('should determine if in range', function() {
var arc = new Chart.elements.Arc({
_datasetIndex: 2,
_index: 1
});
// Make sure we can run these before the view is added
expect(arc.inRange(2, 2)).toBe(false);
expect(arc.inLabelRange(2)).toBe(false);
// Mock out the view as if the controller put it there
arc._view = {
startAngle: 0,
endAngle: Math.PI / 2,
x: 0,
y: 0,
innerRadius: 5,
outerRadius: 10,
};
expect(arc.inRange(2, 2)).toBe(false);
expect(arc.inRange(7, 0)).toBe(true);
expect(arc.inRange(0, 11)).toBe(false);
expect(arc.inRange(Math.sqrt(32), Math.sqrt(32))).toBe(true);
expect(arc.inRange(-1.0 * Math.sqrt(7), Math.sqrt(7))).toBe(false);
});
it ('should get the tooltip position', function() {
var arc = new Chart.elements.Arc({
_datasetIndex: 2,
_index: 1
});
// Mock out the view as if the controller put it there
arc._view = {
startAngle: 0,
endAngle: Math.PI / 2,
x: 0,
y: 0,
innerRadius: 0,
outerRadius: Math.sqrt(2),
};
var pos = arc.tooltipPosition();
expect(pos.x).toBeCloseTo(0.5);
expect(pos.y).toBeCloseTo(0.5);
});
it ('should draw correctly with no border', function() {
var mockContext = window.createMockContext();
var arc = new Chart.elements.Arc({
_datasetIndex: 2,
_index: 1,
_chart: {
ctx: mockContext,
}
});
// Mock out the view as if the controller put it there
arc._view = {
startAngle: 0,
endAngle: Math.PI / 2,
x: 10,
y: 5,
innerRadius: 1,
outerRadius: 3,
backgroundColor: 'rgb(0, 0, 255)',
borderColor: 'rgb(255, 0, 0)',
};
arc.draw();
expect(mockContext.getCalls()).toEqual([{
name: 'beginPath',
args: []
}, {
name: 'arc',
args: [10, 5, 3, 0, Math.PI / 2]
}, {
name: 'arc',
args: [10, 5, 1, Math.PI / 2, 0, true]
}, {
name: 'closePath',
args: []
}, {
name: 'setStrokeStyle',
args: ['rgb(255, 0, 0)']
}, {
name: 'setLineWidth',
args: [undefined]
}, {
name: 'setFillStyle',
args: ['rgb(0, 0, 255)']
}, {
name: 'fill',
args: []
}, {
name: 'setLineJoin',
args: ['bevel']
}]);
});
it ('should draw correctly with a border', function() {
var mockContext = window.createMockContext();
var arc = new Chart.elements.Arc({
_datasetIndex: 2,
_index: 1,
_chart: {
ctx: mockContext,
}
});
// Mock out the view as if the controller put it there
arc._view = {
startAngle: 0,
endAngle: Math.PI / 2,
x: 10,
y: 5,
innerRadius: 1,
outerRadius: 3,
backgroundColor: 'rgb(0, 0, 255)',
borderColor: 'rgb(255, 0, 0)',
borderWidth: 5
};
arc.draw();
expect(mockContext.getCalls()).toEqual([{
name: 'beginPath',
args: []
}, {
name: 'arc',
args: [10, 5, 3, 0, Math.PI / 2]
}, {
name: 'arc',
args: [10, 5, 1, Math.PI / 2, 0, true]
}, {
name: 'closePath',
args: []
}, {
name: 'setStrokeStyle',
args: ['rgb(255, 0, 0)']
}, {
name: 'setLineWidth',
args: [5]
}, {
name: 'setFillStyle',
args: ['rgb(0, 0, 255)']
}, {
name: 'fill',
args: []
}, {
name: 'setLineJoin',
args: ['bevel']
}, {
name: 'stroke',
args: []
}]);
});
});

8
test/mockContext.js
View File

@ -5,6 +5,7 @@
this._initMethods();
this._fillStyle = null;
this._lineJoin = null;
this._lineWidth = null;
this._strokeStyle = null;
@ -17,6 +18,13 @@
this.record('setFillStyle', [style]);
}
},
'lineJoin': {
'get': function() { return this._lineJoin; },
'set': function(join) {
this._lineJoin = join;
this.record('setLineJoin', [join]);
}
},
'lineWidth': {
'get': function() { return this._lineWidth; },
'set': function (width) {