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Merge pull request #1944 from OneSignal/deadlock-between-model-and-su…
…bscriber Deadlock and concurrent modification related to Model.data
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119 changes: 119 additions & 0 deletions
119
OneSignalSDK/onesignal/core/src/test/java/com/onesignal/common/ModelingTests.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| package com.onesignal.common | ||
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| import com.onesignal.common.events.EventProducer | ||
| import com.onesignal.common.modeling.IModelChangedHandler | ||
| import com.onesignal.common.modeling.IModelStoreChangeHandler | ||
| import com.onesignal.common.modeling.ModelChangedArgs | ||
| import com.onesignal.mocks.MockHelper | ||
| import com.onesignal.mocks.MockPreferencesService | ||
| import com.onesignal.user.internal.subscriptions.SubscriptionModel | ||
| import com.onesignal.user.internal.subscriptions.SubscriptionModelStore | ||
| import io.kotest.core.spec.style.FunSpec | ||
| import io.kotest.runner.junit4.KotestTestRunner | ||
| import junit.framework.TestCase | ||
| import org.junit.runner.RunWith | ||
|
|
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| @RunWith(KotestTestRunner::class) | ||
| class ModelingTests : FunSpec({ | ||
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| test("Deadlock related to Model.setOptAnyProperty") { | ||
| // Given | ||
| val modelStore = MockHelper.configModelStore() | ||
| val model = modelStore.model | ||
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| val t1 = | ||
| Thread { | ||
| // acquire "model.data", then trigger the onChanged event | ||
| model.setOptAnyProperty("key1", "value1") | ||
| } | ||
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| val t2 = | ||
| Thread { | ||
| // acquire "model.initializationLock", then wait for "model.data" to be released | ||
| model.initializeFromModel("", MockHelper.configModelStore().model) | ||
| } | ||
|
|
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| model.subscribe( | ||
| object : IModelChangedHandler { | ||
| // will be executed in t1 | ||
| override fun onChanged( | ||
| args: ModelChangedArgs, | ||
| tag: String, | ||
| ) { | ||
| Thread.sleep(200) | ||
| // waiting for "model.initializationLock" | ||
| model.toJSON() | ||
| } | ||
| }, | ||
| ) | ||
|
|
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| t1.start() | ||
| t2.start() | ||
|
|
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| // Set 1s timeout for t2 to complete the task | ||
| t2.join(1000) | ||
|
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| // verify if the thread has been successfully terminated | ||
| TestCase.assertEquals(Thread.State.TERMINATED, t2.state) | ||
| } | ||
|
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| test("Deadlock related to ModelSstore add() or remove()") { | ||
| // Given | ||
| val modelStore = SubscriptionModelStore(MockPreferencesService()) | ||
| val event = EventProducer<SubscriptionModel>() | ||
| val oldSubscriptionModel = SubscriptionModel() | ||
| val newSubscriptionModel = SubscriptionModel() | ||
| oldSubscriptionModel.id = "oldModel" | ||
| newSubscriptionModel.id = "newModel" | ||
| modelStore.add(oldSubscriptionModel) | ||
|
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| val t1 = | ||
| Thread { | ||
| // acquire "ModelStore.models", then trigger the onChanged event | ||
| System.out.println("1") | ||
| modelStore.add(newSubscriptionModel) | ||
| } | ||
|
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| val t2 = | ||
| Thread { | ||
| System.out.println("2") | ||
| // acquire "model.data", then wait for "ModelStore.models" | ||
| newSubscriptionModel.toJSON() | ||
| } | ||
|
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| modelStore.subscribe( | ||
| object : IModelStoreChangeHandler<SubscriptionModel> { | ||
| override fun onModelAdded( | ||
| model: SubscriptionModel, | ||
| tag: String, | ||
| ) { | ||
| // waiting for "model.data" | ||
| model.initializeFromModel("", MockHelper.configModelStore().model) | ||
| } | ||
|
|
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| override fun onModelUpdated( | ||
| args: ModelChangedArgs, | ||
| tag: String, | ||
| ) { | ||
| // left empty in purpose | ||
| } | ||
|
|
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| override fun onModelRemoved( | ||
| model: SubscriptionModel, | ||
| tag: String, | ||
| ) { | ||
| // left empty in purpose | ||
| } | ||
| }, | ||
| ) | ||
|
|
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| t1.start() | ||
| t2.start() | ||
|
|
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| // Set 1s timeout for t2 to complete the task | ||
| t2.join(1000) | ||
|
|
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| // verify if the thread has been successfully terminated | ||
| TestCase.assertEquals(Thread.State.TERMINATED, t2.state) | ||
| } | ||
| }) |