Fix flaky image provider retrieve tests #2457
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+6
−16
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Fixes occasional CI flakiness in
KingfisherManagerTests.testRetrieveWithImageProviderFail.The original tests used an
ActorBoxflag flipped insideTask {}and then asserted from anotherTask, which can race on scheduling.This change rewrites
testRetrieveWithImageProviderandtestRetrieveWithImageProviderFailto use XCTest expectations andwaitForExpectations, making the tests deterministic.