MainThreadMonitor: check deadlocks only ever N seconds#2820
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This was introduced in #2463, as a way to verify the SDK didn't have any deadlocks (#2412, #2375). However, it has caused more trouble than it's worth, because that loop keeps the main thread busy. This solution proposed by @aboedo makes it only check every 3 seconds. If there is a deadlock, it would still detect it. But after it's verified there is no deadlock, it won't check again until that interval has elapsed again. This makes it so that on a test that takes 6 seconds to run, we only execute this code 2 times instead of... a lot.
Codecov Report
@@ Coverage Diff @@
## main #2820 +/- ##
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+ Coverage 86.48% 86.56% +0.08%
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Files 215 215
Lines 15484 15484
==========================================
+ Hits 13391 13404 +13
+ Misses 2093 2080 -13 |
aboedo
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Jul 15, 2023
NachoSoto
added a commit
that referenced
this pull request
Jul 19, 2023
**This is an automatic release.** ### Dependency Updates * Bump fastlane from 2.213.0 to 2.214.0 (#2824) via dependabot[bot] (@dependabot[bot]) ### Other Changes * `MainThreadMonitor`: don't crash if there is no test in progress (#2838) via NachoSoto (@NachoSoto) * `CI`: fixed Fastlane APITester lanes (#2836) via NachoSoto (@NachoSoto) * `Integration Tests`: workaround Swift runtime crash (#2826) via NachoSoto (@NachoSoto) * `@EnsureNonEmptyArrayDecodable` (#2831) via NachoSoto (@NachoSoto) * `iOS 17`: added tests for simulating cancellations (#2597) via NachoSoto (@NachoSoto) * `CI`: make all `Codecov` jobs `informational` (#2828) via NachoSoto (@NachoSoto) * `MainThreadMonitor`: check deadlocks only ever N seconds (#2820) via NachoSoto (@NachoSoto) * New `@NonEmptyStringDecodable` (#2819) via NachoSoto (@NachoSoto) * `MockDeviceCache`: avoid using real `UserDefaults` (#2814) via NachoSoto (@NachoSoto) * `throwAssertion`: fixed Xcode 15 compilation (#2813) via NachoSoto (@NachoSoto) * `CustomEntitlementsComputation`: fixed API testers (#2815) via NachoSoto (@NachoSoto) * `PackageTypeTests`: fixed iOS 12 (#2807) via NachoSoto (@NachoSoto) * `Tests`: avoid race-condition in leak detection (#2806) via NachoSoto (@NachoSoto) * Revert "`Unit Tests`: removed leak detection" (#2805) via NachoSoto (@NachoSoto) * `PackageType: Codable` implementation (#2797) via NachoSoto (@NachoSoto) * `SystemInfo.init` no longer `throws` (#2803) via NachoSoto (@NachoSoto) * `Trusted Entitlements`: add support for signing `POST` body (#2753) via NachoSoto (@NachoSoto) * `Tests`: unified default timeouts (#2801) via NachoSoto (@NachoSoto) * `Tests`: removed forced-unwrap (#2799) via NachoSoto (@NachoSoto) * `Tests`: added missing `super.setUp()` (#2804) via NachoSoto (@NachoSoto) * Replaced `FatalErrorUtil` with `Nimble` (#2802) via NachoSoto (@NachoSoto) * `Tests`: fixed another flaky test (#2795) via NachoSoto (@NachoSoto) * `TimingUtil`: improved tests by using `Clock` (#2794) via NachoSoto (@NachoSoto) * `IgnoreDecodeErrors`: log decoding error (#2778) via NachoSoto (@NachoSoto) * `TestLogHandler`: changed all tests to explicitly deinitialize it (#2784) via NachoSoto (@NachoSoto) * `LocalReceiptParserStoreKitTests`: fixed flaky test failure (#2785) via NachoSoto (@NachoSoto) * `Unit Tests`: removed leak detection (#2792) via NachoSoto (@NachoSoto) * `Tests`: fixed another flaky failure with asynchronous check (#2786) via NachoSoto (@NachoSoto) --------- Co-authored-by: NachoSoto <ignaciosoto90@gmail.com>
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This was introduced in #2463, as a way to verify the SDK didn't have any deadlocks (#2412, #2375).
However, it has caused more trouble than it's worth, because that loop keeps the main thread busy.
This solution proposed by @aboedo makes it only check every 3 seconds.
If there is a deadlock, it would still detect it. But after it's verified there is no deadlock, it won't check again until that interval has elapsed again.
This makes it so that on a test that takes 6 seconds to run, we only execute this code 2 times instead of... a lot.