wip: tests2

src/mail-app/mail/model/MailModel.ts

@@ -242,6 +242,12 @@ export class MailModel {
 				mailFolderAfterInboxRuleAndSpamProcessing.then((targetFolder) => {
 					this._showNotification(targetFolder ?? initialMailFolder, mail)
 				})
+			} else if (isUpdateForTypeRef(MailTypeRef, update) && update.operation === OperationType.DELETE) {
+				const mailId: IdTuple = [update.instanceListId, update.instanceListId]
+
+				// todo: how can we get the group in case of delete events?
+				const mailOwnerGroup = this.logins.getUserController().getMailGroupMemberships().at(0)!.group
+				await this.spamHandler().dropClassificationData(mailOwnerGroup, mailId)
 			}
 		}
 	}

src/mail-app/mail/model/SpamClassificationHandler.ts

@@ -69,6 +69,10 @@ export class SpamClassificationHandler {
 		return assertNotNull(folderSystem.getSystemFolderByType(classifierMailSetTarget), `Could not get System folder for owner: ${mail._ownerGroup}`)
 	}
 
+	public async dropClassificationData(mailOwnerGroup: Id, mailId: IdTuple) {
+		await this.spamClassifier?.deleteSpamClassification(mailOwnerGroup, mailId)
+	}
+
 	public async updateSpamClassificationData(events: ReadonlyArray<EntityUpdateData>, mail: Mail, folderSystem: FolderSystem) {
 		// TODO:
 		// would be nice to still update spam classification data even if spam classifier is not there yet,

src/mail-app/workerUtils/index/OfflineStoragePersistence.ts

@@ -200,6 +200,18 @@ export class OfflineStoragePersistence {
 		await this.sqlCipherFacade.run(query, params)
 	}
 
+	async deleteSpamClassificationData(owner: Id, mailId: IdTuple): Promise<void> {
+		const mailListId = listIdPart(mailId)
+		const mailElementId = elementIdPart(mailId)
+		const { query, params } = sql`
+			DELETE
+			FROM spam_classification_training_data
+			where ownerGroup = ${owner}
+			  AND listId = ${mailListId}
+			  AND elementId = ${mailElementId}`
+		await this.sqlCipherFacade.run(query, params)
+	}
+
 	async updateSpamClassificationData(id: IdTuple, isSpam: boolean, isSpamConfidence: number): Promise<void> {
 		const { query, params } = sql`
 			UPDATE spam_classification_training_data

src/mail-app/workerUtils/spamClassification/SpamClassifier.ts

@@ -399,6 +399,10 @@ export class SpamClassifier {
 		return this.offlineStorage.storeSpamClassification(spamTrainMailDatum)
 	}
 
+	public deleteSpamClassification(ownerGroup: Id, mailId: IdTuple) {
+		return this.offlineStorage.deleteSpamClassificationData(ownerGroup, mailId)
+	}
+
 	/*
 	 * TODO: Only for internal release
 	 *
@@ -598,17 +602,17 @@ export class SpamClassifier {
 		return concatenated.length > 0 ? concatenated : " "
 	}
 
-    private async retrainModelFromScratch(storage: CacheStorage, ownerGroup: Id, cutoffTimestamp: number) {
-        console.log("Model is being re-trained from scratch, deleting old data")
-        try {
-            await assertNotNull(this.offlineStorage).deleteSpamClassificationTrainingDataBeforeCutoff(cutoffTimestamp, ownerGroup)
-        } catch (e) {
-            console.error("Failed delete old training data: ", e)
-            return
-        }
+	private async retrainModelFromScratch(storage: CacheStorage, ownerGroup: Id, cutoffTimestamp: number) {
+		console.log("Model is being re-trained from scratch, deleting old data")
+		try {
+			await assertNotNull(this.offlineStorage).deleteSpamClassificationTrainingDataBeforeCutoff(cutoffTimestamp, ownerGroup)
+		} catch (e) {
+			console.error("Failed delete old training data: ", e)
+			return
+		}
 
-        await this.trainFromScratch(storage, ownerGroup)
-    }
+		await this.trainFromScratch(storage, ownerGroup)
+	}
 
 	// === Testing methods
 	public async cloneClassifier(): Promise<SpamClassifier> {

test/tests/mail/MailModelTest.ts

@@ -190,7 +190,7 @@ o.spec("MailModelTest", function () {
 			const inboxRuleTargetFolder = createTestEntity(MailFolderTypeRef, { _id: ["folderListId", "inboxRuleTarget"] })
 
 			when(spamClassificationHandler.downloadMail(anything())).thenResolve(mail)
-			when(inboxRuleHandler.findAndApplyMatchingRule(anything(), anything(), anything())).thenResolve(inboxRuleTargetFolder)
+			when(inboxRuleHandler.findAndApplyMatchingRule(anything(), mail, anything())).thenResolve(inboxRuleTargetFolder)
 
 			const mailCreateEvent = makeUpdate({ instanceListId: "mailListId", instanceId: "mailId", operation: OperationType.CREATE })
 			await model.entityEventsReceived([mailCreateEvent])
@@ -198,6 +198,22 @@ o.spec("MailModelTest", function () {
 			verify(spamClassificationHandler.predictSpamForNewMail(anything(), mail, anything()), { times: 1 })
 			verify(spamClassifier.predict(anything()), { times: 0 })
 		})
+
+		o("deletes a training datum for deleted mail event", async () => {
+			const mail = createTestEntity(MailTypeRef, {
+				_id: ["mailListId", "mailId"],
+				_ownerGroup: "owner",
+				mailDetailsDraft: ["draftListId", "draftId"],
+				mailDetails: null,
+			})
+			when(spamClassificationHandler.downloadMail(anything())).thenResolve(mail)
+			when(inboxRuleHandler.findAndApplyMatchingRule(anything(), anything(), anything())).thenResolve(null)
+
+			const mailDeleteEvent = makeUpdate({ instanceListId: "mailListId", instanceId: "mailId", operation: OperationType.DELETE })
+			await model.entityEventsReceived([mailDeleteEvent])
+
+			verify(spamClassifier.deleteSpamClassification("owner", mail._id), { times: 0 })
+		})
 	})
 
 	function makeUpdate({