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[Plot] Add test cases

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WTD-806
This commit is contained in:
Victor Woeltjen
2015-04-20 11:00:54 -07:00
parent ffcd91f88d
commit e21cbbe2c6
1 changed files with 91 additions and 0 deletions
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91
platform/features/plot/test/elements/PlotLineSpec.js
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@ -6,6 +6,97 @@ define(
"use strict"; "use strict";
describe("A plot line", function () { describe("A plot line", function () {
var mockBuffer,
mockSeries,
testDomainBuffer,
testRangeBuffer,
testSeries,
line;
beforeEach(function () {
testDomainBuffer = [];
testRangeBuffer = [];
testSeries = [];
mockBuffer = jasmine.createSpyObj(
'buffer',
['findInsertionIndex', 'insert', 'insertPoint']
);
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];
});
// Function like PlotLineBuffer, to aid in testability
mockBuffer.findInsertionIndex.andCallFake(function (v) {
var index = 0;
if (testDomainBuffer.indexOf(v) !== -1) {
return -1;
}
while ((index < testDomainBuffer.length) &&
(testDomainBuffer[index] < v)) {
index += 1;
}
return index;
});
mockBuffer.insert.andCallFake(function (series, index) {
var domains = [], ranges = [], i;
for (i = 0; i < series.getPointCount(); i += 1) {
domains.push(series.getDomainValue(i));
ranges.push(series.getRangeValue(i));
}
testDomainBuffer = testDomainBuffer.slice(0, index)
.concat(domains)
.concat(testDomainBuffer.slice(index));
testRangeBuffer = testRangeBuffer.slice(0, index)
.concat(ranges)
.concat(testRangeBuffer.slice(index));
return true;
});
mockBuffer.insertPoint.andCallFake(function (dv, rv, index) {
testDomainBuffer.splice(index, 0, dv);
testRangeBuffer.splice(index, 0, rv);
return true;
});
line = new PlotLine(mockBuffer);
});
it("allows single point insertion", function () {
line.addPoint(100, 200);
line.addPoint(50, 42);
line.addPoint(150, 12321);
// Should have managed insertion index choices to get to...
expect(testDomainBuffer).toEqual([50, 100, 150]);
expect(testRangeBuffer).toEqual([42, 200, 12321]);
});
it("allows series insertion", function () {
testSeries = [ [ 50, 42 ], [ 100, 200 ], [ 150, 12321 ] ];
line.addSeries(mockSeries);
// Should have managed insertion index choices to get to...
expect(testDomainBuffer).toEqual([50, 100, 150]);
expect(testRangeBuffer).toEqual([42, 200, 12321]);
});
it("splits series insertion when necessary", function () {
testSeries = [ [ 50, 42 ], [ 100, 200 ], [ 150, 12321 ] ];
line.addPoint(75, 1);
line.addSeries(mockSeries);
// Should have managed insertion index choices to get to...
expect(testDomainBuffer).toEqual([50, 75, 100, 150]);
expect(testRangeBuffer).toEqual([42, 1, 200, 12321]);
});
}); });
} }