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Fix a crash that happens when the application changes states. #14102

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Merged
merged 7 commits into from
Nov 14, 2024
Merged

Fix a crash that happens when the application changes states. #14102

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284b714
Fix a crash that happens when the application changes states and we a…
visumickey Nov 12, 2024
f881286
Merge branch 'main' into perf_github_13174
visumickey Nov 12, 2024
3e6f108
Fix the failing test.
visumickey Nov 13, 2024
e875ee1
Satisfy style gods.
visumickey Nov 13, 2024
65c52d2
Fix the failing tests.
visumickey Nov 13, 2024
435c703
Add the missing expectations fullfil.
visumickey Nov 13, 2024
7983990
Update changelog to make it formatted properly.
visumickey Nov 14, 2024
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3 changes: 3 additions & 0 deletions FirebasePerformance/CHANGELOG.md
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Original file line number Diff line number Diff line change
@@ -1,3 +1,6 @@
# Unreleased
- [fixed] Fix a crash related to registering for notifications when the app is between foreground or background states. (#13174)

# 11.5.0
- [fixed] Replaced usage of the deprecated `UIApplication.keyWindow` property
with `UIWindow.isKeyWindow`; this API is also available on visionOS. Note that
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19 changes: 10 additions & 9 deletions FirebasePerformance/Sources/AppActivity/FPRTraceBackgroundActivityTracker.m
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Expand Up @@ -35,16 +35,17 @@ - (instancetype)init {
} else {
_traceBackgroundState = FPRTraceStateForegroundOnly;
}
dispatch_async(dispatch_get_main_queue(), ^{
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(applicationDidBecomeActive:)
name:UIApplicationDidBecomeActiveNotification
object:[UIApplication sharedApplication]];

[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(applicationDidBecomeActive:)
name:UIApplicationDidBecomeActiveNotification
object:[UIApplication sharedApplication]];

[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(applicationDidEnterBackground:)
name:UIApplicationDidEnterBackgroundNotification
object:[UIApplication sharedApplication]];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(applicationDidEnterBackground:)
name:UIApplicationDidEnterBackgroundNotification
object:[UIApplication sharedApplication]];
});
}
return self;
}
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24 changes: 19 additions & 5 deletions FirebasePerformance/Tests/Unit/FPRTraceBackgroundActivityTrackerTest.m
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Expand Up @@ -38,13 +38,27 @@ - (void)testForegroundTracking {

/** Validates if the foreground & background state is captured correctly. */
- (void)testBackgroundTracking {
XCTestExpectation *expectation = [self expectationWithDescription:@"Application state change"];

FPRTraceBackgroundActivityTracker *tracker = [[FPRTraceBackgroundActivityTracker alloc] init];
NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];
[defaultCenter postNotificationName:UIApplicationDidBecomeActiveNotification
object:[UIApplication sharedApplication]];
[defaultCenter postNotificationName:UIApplicationDidEnterBackgroundNotification
object:[UIApplication sharedApplication]];
XCTAssertEqual(tracker.traceBackgroundState, FPRTraceStateBackgroundAndForeground);
dispatch_async(dispatch_get_main_queue(), ^{
[defaultCenter postNotificationName:UIApplicationDidBecomeActiveNotification
object:[UIApplication sharedApplication]];
[defaultCenter postNotificationName:UIApplicationDidEnterBackgroundNotification
object:[UIApplication sharedApplication]];
[expectation fulfill];
});

[self waitForExpectationsWithTimeout:5.0
handler:^(NSError *_Nullable error) {
if (error) {
XCTFail(@"Expectation failed with error: %@", error);
} else {
XCTAssertEqual(tracker.traceBackgroundState,
FPRTraceStateBackgroundAndForeground);
}
}];
}

@end
51 changes: 39 additions & 12 deletions FirebasePerformance/Tests/Unit/Timer/FIRTraceTest.m
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Expand Up @@ -427,15 +427,28 @@ - (void)testValidTraceWithStageAndMetrics {

/** Validates the value of background state when the app is backgrounded. */
- (void)testValidTraceWithBackgrounding {
XCTestExpectation *expectation = [self expectationWithDescription:@"Application state change"];
NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];
FIRTrace *trace = [[FIRTrace alloc] initWithName:@"Random"];
[trace start];
[defaultCenter postNotificationName:UIApplicationDidEnterBackgroundNotification
object:[UIApplication sharedApplication]];
[defaultCenter postNotificationName:UIApplicationDidBecomeActiveNotification
object:[UIApplication sharedApplication]];
XCTAssertEqual(trace.backgroundTraceState, FPRTraceStateBackgroundAndForeground);
[trace stop];
dispatch_async(dispatch_get_main_queue(), ^{
[defaultCenter postNotificationName:UIApplicationDidEnterBackgroundNotification
object:[UIApplication sharedApplication]];
[defaultCenter postNotificationName:UIApplicationDidBecomeActiveNotification
object:[UIApplication sharedApplication]];
[expectation fulfill];
});

[self waitForExpectationsWithTimeout:5.0
handler:^(NSError *_Nullable error) {
if (error) {
XCTFail(@"Expectation failed with error: %@", error);
} else {
XCTAssertEqual(trace.backgroundTraceState,
FPRTraceStateBackgroundAndForeground);
[trace stop];
}
}];
}

/** Validates the value of background state when trace is not started. */
Expand All @@ -452,15 +465,29 @@ - (void)testValidTraceWithoutStart {

/** Validates the value of background state is available after trace is stopped. */
- (void)testBackgroundStateAfterTraceStop {
XCTestExpectation *expectation = [self expectationWithDescription:@"Application state change"];

NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];
FIRTrace *trace = [[FIRTrace alloc] initWithName:@"Random"];
[trace start];
[defaultCenter postNotificationName:UIApplicationDidEnterBackgroundNotification
object:[UIApplication sharedApplication]];
[defaultCenter postNotificationName:UIApplicationDidBecomeActiveNotification
object:[UIApplication sharedApplication]];
[trace stop];
XCTAssertEqual(trace.backgroundTraceState, FPRTraceStateBackgroundAndForeground);
dispatch_async(dispatch_get_main_queue(), ^{
[defaultCenter postNotificationName:UIApplicationDidEnterBackgroundNotification
object:[UIApplication sharedApplication]];
[defaultCenter postNotificationName:UIApplicationDidBecomeActiveNotification
object:[UIApplication sharedApplication]];
[expectation fulfill];
});

[self waitForExpectationsWithTimeout:5.0
handler:^(NSError *_Nullable error) {
if (error) {
XCTFail(@"Expectation failed with error: %@", error);
} else {
[trace stop];
XCTAssertEqual(trace.backgroundTraceState,
FPRTraceStateBackgroundAndForeground);
}
}];
}

/** Validates that stages do not have any valid background state. */
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