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Test for skipping drawing

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Evert Timberg
2015-11-11 21:49:07 -05:00
parent 14b6fdd51e
commit 1e4894d625
1 changed files with 242 additions and 2 deletions
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244
test/scale.linear.tests.js
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@@ -1458,7 +1458,7 @@ describe('Linear Scale', function() {
}, {
"name": "rotate",
"args": [-1.5707963267948966]
}, {
}, {
"name": "setFillStyle",
"args": ["#666"]
}, {
@@ -1469,4 +1469,244 @@ describe('Linear Scale', function() {
"args": []
}]);
});
});
it("should not draw lines where the callback function returned null or undefined", function() {
var scaleID = 'myScale';
var mockData = {
datasets: [{
xAxisID: scaleID, // for the horizontal scale
yAxisID: scaleID,
data: [-5, 0, 2, -3, 5]
}]
};
var mockContext = window.createMockContext();
var config = Chart.helpers.clone(Chart.scaleService.getScaleDefaults('linear'));
config.ticks.callback = function(tickValue, index) {
return index % 2 === 0 ? null : tickValue.toString();
};
var Constructor = Chart.scaleService.getScaleConstructor('linear');
var verticalScale = new Constructor({
ctx: mockContext,
options: config,
data: mockData,
id: scaleID
});
var minSize = verticalScale.update(100, 300);
minSize = verticalScale.update(30, 300, {
left: 0,
right: 0,
top: 15,
bottom: 3
});
expect(minSize).toEqual({
width: 30,
height: 300,
});
verticalScale.left = 0;
verticalScale.right = minSize.width;
verticalScale.top = 0;
verticalScale.bottom = minSize.height;
var chartArea = {
top: 0,
bottom: minSize.height,
left: minSize.width,
right: minSize.width + 100
};
mockContext.resetCalls();
verticalScale.draw(chartArea);
expect(mockContext.getCalls()).toEqual([{
"name": "setFillStyle",
"args": ["#666"]
}, {
"name": "setLineWidth",
"args": [1]
}, {
"name": "setStrokeStyle",
"args": ["rgba(0, 0, 0, 0.1)"]
}, {
"name": "beginPath",
"args": []
}, {
"name": "moveTo",
"args": [25, 30.2]
}, {
"name": "lineTo",
"args": [30, 30.2]
}, {
"name": "moveTo",
"args": [30, 30.2]
}, {
"name": "lineTo",
"args": [130, 30.2]
}, {
"name": "stroke",
"args": []
}, {
"name": "save",
"args": []
}, {
"name": "translate",
"args": [20, 29.7]
}, {
"name": "rotate",
"args": [-0]
}, {
"name": "fillText",
"args": ["4", 0, 0]
}, {
"name": "restore",
"args": []
}, {
"name": "beginPath",
"args": []
}, {
"name": "moveTo",
"args": [25, 89.6]
}, {
"name": "lineTo",
"args": [30, 89.6]
}, {
"name": "moveTo",
"args": [30, 89.6]
}, {
"name": "lineTo",
"args": [130, 89.6]
}, {
"name": "stroke",
"args": []
}, {
"name": "save",
"args": []
}, {
"name": "translate",
"args": [20, 89.1]
}, {
"name": "rotate",
"args": [-0]
}, {
"name": "fillText",
"args": ["2", 0, 0]
}, {
"name": "restore",
"args": []
}, {
"name": "setLineWidth",
"args": [1]
}, {
"name": "setStrokeStyle",
"args": ["rgba(0,0,0,0.25)"]
}, {
"name": "beginPath",
"args": []
}, {
"name": "moveTo",
"args": [25, 149]
}, {
"name": "lineTo",
"args": [30, 149]
}, {
"name": "moveTo",
"args": [30, 149]
}, {
"name": "lineTo",
"args": [130, 149]
}, {
"name": "stroke",
"args": []
}, {
"name": "save",
"args": []
}, {
"name": "translate",
"args": [20, 148.5]
}, {
"name": "rotate",
"args": [-0]
}, {
"name": "fillText",
"args": ["0", 0, 0]
}, {
"name": "restore",
"args": []
}, {
"name": "setLineWidth",
"args": [1]
}, {
"name": "setStrokeStyle",
"args": ["rgba(0, 0, 0, 0.1)"]
}, {
"name": "beginPath",
"args": []
}, {
"name": "moveTo",
"args": [25, 208.4]
}, {
"name": "lineTo",
"args": [30, 208.4]
}, {
"name": "moveTo",
"args": [30, 208.4]
}, {
"name": "lineTo",
"args": [130, 208.4]
}, {
"name": "stroke",
"args": []
}, {
"name": "save",
"args": []
}, {
"name": "translate",
"args": [20, 207.9]
}, {
"name": "rotate",
"args": [-0]
}, {
"name": "fillText",
"args": ["-2", 0, 0]
}, {
"name": "restore",
"args": []
}, {
"name": "beginPath",
"args": []
}, {
"name": "moveTo",
"args": [25, 267.8]
}, {
"name": "lineTo",
"args": [30, 267.8]
}, {
"name": "moveTo",
"args": [30, 267.8]
}, {
"name": "lineTo",
"args": [130, 267.8]
}, {
"name": "stroke",
"args": []
}, {
"name": "save",
"args": []
}, {
"name": "translate",
"args": [20, 267.3]
}, {
"name": "rotate",
"args": [-0]
}, {
"name": "fillText",
"args": ["-4", 0, 0]
}, {
"name": "restore",
"args": []
}])
});
});