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[Timeline] Add tests for timeline zoom changes

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This commit is contained in:
Victor Woeltjen 2016-05-24 12:33:19 -07:00
parent 757da1dff4
commit eb5566f041
2 changed files with 59 additions and 6 deletions
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2
platform/features/timeline/src/controllers/TimelineZoomController.js
View File

@ -66,7 +66,7 @@ define(
var duration = timespan.getDuration();
zoomIndex = 0;
while (toMillis(bounds.width) < duration &&
zoomIndex < zoomLevels.length) {
zoomIndex < zoomLevels.length - 1) {
zoomIndex += 1;
}
bounds.x = toPixels(timespan.getStart());

63
platform/features/timeline/test/controllers/TimelineZoomControllerSpec.js
View File

@ -32,11 +32,7 @@ define(
beforeEach(function () {
testConfiguration = {
levels: [
1000,
2000,
3500
],
levels: [ 1000, 2000, 3500 ],
width: 12321
};
mockScope = jasmine.createSpyObj("$scope", ['$watch']);
@ -74,6 +70,63 @@ define(
expect(controller.zoom()).toEqual(3500);
});
it("observes scroll bounds", function () {
expect(mockScope.$watch)
.toHaveBeenCalledWith("scroll", jasmine.any(Function));
});
describe("when watches have fired", function () {
var mockDomainObject,
mockPromise,
mockTimespan,
testStart,
testEnd;
beforeEach(function () {
testStart = 3000;
testEnd = 5500;
mockDomainObject = jasmine.createSpyObj('domainObject', [
'getId',
'getModel',
'getCapability',
'useCapability'
]);
mockPromise = jasmine.createSpyObj('promise', ['then']);
mockTimespan = jasmine.createSpyObj('timespan', [
'getStart',
'getEnd',
'getDuration'
]);
mockDomainObject.useCapability.andCallFake(function (c) {
return c === 'timespan' && mockPromise;
});
mockPromise.then.andCallFake(function (callback) {
callback(mockTimespan);
});
mockTimespan.getStart.andReturn(testStart);
mockTimespan.getEnd.andReturn(testEnd);
mockTimespan.getDuration.andReturn(testEnd - testStart);
mockScope.scroll = { x: 0, width: 20000 };
mockScope.domainObject = mockDomainObject;
mockScope.$watch.calls.forEach(function (call) {
call.args[1](mockScope[call.args[0]]);
});
});
it("zooms to fit the timeline", function () {
var x1 = mockScope.scroll.x,
x2 = mockScope.scroll.x + mockScope.scroll.width;
expect(Math.round(controller.toMillis(x1)))
.toEqual(testStart);
expect(Math.round(controller.toMillis(x2)))
.toBeGreaterThan(testEnd);
});
});
});
}