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[Plot] Add test cases

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Add test cases for plot line management, WTD-806.
This commit is contained in:
Victor Woeltjen 2015-04-20 14:31:29 -07:00
parent e21cbbe2c6
commit 4d288950fd
4 changed files with 105 additions and 7 deletions
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8
platform/features/plot/src/elements/PlotSeriesWindow.js
View File

@ -14,14 +14,14 @@ define(
return end - start;
},
getDomainValue: function (index) {
return series.getDomainValue(index - start, domain);
return series.getDomainValue(index + start, domain);
},
getRangeValue: function (index) {
return series.getRangeValue(index - start, range);
return series.getRangeValue(index + start, range);
},
split: function () {
var mid = Math.floor((end + start) / 2);
return end > start ?
return ((end - start) > 1) ?
[
new PlotSeriesWindow(
series,
@ -34,7 +34,7 @@ define(
series,
domain,
range,
mid + 1,
mid,
end
)
] : [];

25
platform/features/plot/test/elements/PlotLineBufferSpec.js
View File

@ -85,6 +85,31 @@ define(
).toEqual([ -35, 3, -33, 9, -28, 8, -27, 11]);
});
it("expands buffer when needed to accommodate more data", function () {
var i;
// Initial underlying buffer should be twice initial size...
// (Since each pair will take up two elements)
expect(buffer.getBuffer().length).toEqual(20);
// Should be able to insert 6 series of 6 points each
// (After that, we'll hit the test max of 40)
for (i = 1; i < 15; i += 1) {
expect(buffer.insertPoint(i * 10, Math.sin(i), i))
.toBeTruthy();
}
// Buffer should have expanded in the process
expect(buffer.getBuffer().length).toEqual(40);
// Push to maximum size just to make sure...
for (i = 1; i < 150; i += 1) {
buffer.insertPoint(i * 10, Math.sin(i), i);
}
expect(buffer.getBuffer().length).toEqual(80);
});
it("ensures a maximum size", function () {
var i;

17
platform/features/plot/test/elements/PlotLineSpec.js
View File

@ -20,7 +20,7 @@ define(
mockBuffer = jasmine.createSpyObj(
'buffer',
['findInsertionIndex', 'insert', 'insertPoint']
['findInsertionIndex', 'insert', 'insertPoint', 'trim']
);
mockSeries = jasmine.createSpyObj(
'series',
@ -31,10 +31,10 @@ define(
return testSeries.length;
});
mockSeries.getDomainValue.andCallFake(function (i) {
return testSeries[i][0];
return (testSeries[i] || [])[0];
});
mockSeries.getRangeValue.andCallFake(function (i) {
return testSeries[i][1];
return (testSeries[i] || [])[1];
});
// Function like PlotLineBuffer, to aid in testability
@ -98,6 +98,17 @@ define(
expect(testRangeBuffer).toEqual([42, 1, 200, 12321]);
});
it("attempts to remove points when insertion fails", function () {
// Verify precondition - normally doesn't try to trim
line.addPoint(1, 2);
expect(mockBuffer.trim).not.toHaveBeenCalled();
// But if insertPoint fails, it should trim
mockBuffer.insertPoint.andReturn(false);
line.addPoint(2, 3);
expect(mockBuffer.trim).toHaveBeenCalled();
});
});
}
);

62
platform/features/plot/test/elements/PlotSeriesWindowSpec.js
View File

@ -6,6 +6,68 @@ define(
"use strict";
describe("A plot's window on a telemetry series", function () {
var mockSeries,
testSeries,
window;
beforeEach(function () {
testSeries = [
[ 0, 42 ],
[ 10, 1 ],
[ 20, 4 ],
[ 30, 9 ],
[ 40, 3 ]
];
mockSeries = jasmine.createSpyObj(
'series',
['getPointCount', 'getDomainValue', 'getRangeValue']
);
mockSeries.getPointCount.andCallFake(function () {
return testSeries.length;
});
mockSeries.getDomainValue.andCallFake(function (i) {
return testSeries[i][0];
});
mockSeries.getRangeValue.andCallFake(function (i) {
return testSeries[i][1];
});
window = new PlotSeriesWindow(
mockSeries,
"testDomain",
"testRange",
1,
testSeries.length
);
});
it("provides a window upon a data series", function () {
expect(window.getPointCount()).toEqual(4);
expect(window.getDomainValue(0)).toEqual(10);
expect(window.getRangeValue(0)).toEqual(1);
});
it("looks up using specific domain/range keys", function () {
window.getDomainValue(0);
window.getRangeValue(0);
expect(mockSeries.getDomainValue)
.toHaveBeenCalledWith(1, 'testDomain');
expect(mockSeries.getRangeValue)
.toHaveBeenCalledWith(1, 'testRange');
});
it("can be split into smaller windows", function () {
var windows = window.split();
expect(windows.length).toEqual(2);
expect(windows[0].getPointCount()).toEqual(2);
expect(windows[1].getPointCount()).toEqual(2);
expect(windows[0].getDomainValue(0)).toEqual(10);
expect(windows[1].getDomainValue(0)).toEqual(30);
expect(windows[0].getRangeValue(0)).toEqual(1);
expect(windows[1].getRangeValue(0)).toEqual(9);
});
});
}