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Added regression test

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This commit is contained in:
Andrew Henry 2020-07-16 11:50:03 -07:00
parent 98db273f5d
commit 16bb22e834
1 changed files with 23 additions and 0 deletions
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23
src/api/telemetry/TelemetryAPISpec.js
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@ -156,6 +156,29 @@ define([
expect(callbacktwo).not.toHaveBeenCalledWith('anotherValue');
});
it('only deletes subscription cache when there are no more subscribers', function () {
var unsubFunc = jasmine.createSpy('unsubscribe');
telemetryProvider.subscribe.and.returnValue(unsubFunc);
telemetryProvider.supportsSubscribe.and.returnValue(true);
telemetryAPI.addProvider(telemetryProvider);
var callback = jasmine.createSpy('callback');
var callbacktwo = jasmine.createSpy('callback two');
var callbackThree = jasmine.createSpy('callback three');
var unsubscribe = telemetryAPI.subscribe(domainObject, callback);
var unsubscribeTwo = telemetryAPI.subscribe(domainObject, callbacktwo);
expect(telemetryProvider.subscribe.calls.count()).toBe(1);
unsubscribe();
var unsubscribeThree = telemetryAPI.subscribe(domainObject, callbackThree);
// Regression test for where subscription cache was deleted on each unsubscribe, resulting in
// superfluous additional subscriptions. If the subscription cache is being deleted on each unsubscribe,
// then a subsequent subscribe will result in a new subscription at the provider.
expect(telemetryProvider.subscribe.calls.count()).toBe(1);
unsubscribeTwo();
unsubscribeThree();
});
it('does subscribe/unsubscribe', function () {
var unsubFunc = jasmine.createSpy('unsubscribe');
telemetryProvider.subscribe.and.returnValue(unsubFunc);