fix: Do not migrate remnant data from legacy SDK when sandboxing is not enabled (#127)

* fix: Do not migrate remnant data from legacy SDK when sandboxing is not enabled

Author: izaaz

Sources/Amplitude/Amplitude.swift

@@ -41,7 +41,7 @@ public class Amplitude {
 
         migrateApiKeyStorages()
         migrateDefaultInstanceStorages()
-        if configuration.migrateLegacyData && getStorageVersion() < .API_KEY_AND_INSTANCE_NAME {
+        if configuration.migrateLegacyData && getStorageVersion() < .API_KEY_AND_INSTANCE_NAME && isSandboxEnabled() {
             RemnantDataMigration(self).execute()
         }
         migrateInstanceOnlyStorages()

Tests/AmplitudeTests/AmplitudeTests.swift

@@ -535,6 +535,82 @@ final class AmplitudeTests: XCTestCase {
     }
     #endif
 
+    func testRemnantDataNotMigratedInNonSandboxedApps() throws {
+        let instanceName = "legacy_v3_\(UUID().uuidString)".lowercased()
+        let bundle = Bundle(for: type(of: self))
+        let legacyDbUrl = bundle.url(forResource: "legacy_v3", withExtension: "sqlite")
+        let dbUrl = LegacyDatabaseStorage.getDatabasePath(instanceName)
+        let fileManager = FileManager.default
+        let legacyDbExists = legacyDbUrl != nil ? fileManager.fileExists(atPath: legacyDbUrl!.path) : false
+        XCTAssertTrue(legacyDbExists)
+
+        try fileManager.copyItem(at: legacyDbUrl!, to: dbUrl)
+
+        addTeardownBlock {
+            let fileManager = FileManager.default
+            if fileManager.fileExists(atPath: dbUrl.path) {
+                try fileManager.removeItem(at: dbUrl)
+            }
+        }
+
+        let apiKey = "test-api-key"
+        let configuration = Configuration(
+            apiKey: apiKey,
+            instanceName: instanceName,
+            migrateLegacyData: true
+        )
+        let amplitude = Amplitude(configuration: configuration)
+
+        let deviceId = "9B574574-74A7-4EDF-969D-164CB151B6C3"
+        let userId = "ios-sample-user-legacy"
+
+        #if os(macOS)
+            // We don't want to transfer remnant data in non-sanboxed apps
+            XCTAssertFalse(amplitude.isSandboxEnabled())
+            XCTAssertNotEqual(amplitude.getDeviceId(), deviceId)
+            XCTAssertNotEqual(amplitude.getUserId(), userId)
+        #else
+            XCTAssertEqual(amplitude.getDeviceId(), deviceId)
+            XCTAssertEqual(amplitude.getUserId(), userId)
+        #endif
+    }
+
+    #if os(macOS)
+    func testRemnantDataNotMigratedInSandboxedMacApps() throws {
+        let instanceName = "legacy_v3_\(UUID().uuidString)".lowercased()
+        let bundle = Bundle(for: type(of: self))
+        let legacyDbUrl = bundle.url(forResource: "legacy_v3", withExtension: "sqlite")
+        let dbUrl = LegacyDatabaseStorage.getDatabasePath(instanceName)
+        let fileManager = FileManager.default
+        let legacyDbExists = legacyDbUrl != nil ? fileManager.fileExists(atPath: legacyDbUrl!.path) : false
+        XCTAssertTrue(legacyDbExists)
+
+        try fileManager.copyItem(at: legacyDbUrl!, to: dbUrl)
+
+        addTeardownBlock {
+            let fileManager = FileManager.default
+            if fileManager.fileExists(atPath: dbUrl.path) {
+                try fileManager.removeItem(at: dbUrl)
+            }
+        }
+
+        let apiKey = "test-api-key"
+        let configuration = Configuration(
+            apiKey: apiKey,
+            instanceName: instanceName,
+            migrateLegacyData: true
+        )
+        let amplitude = FakeAmplitudeWithSandboxEnabled(configuration: configuration)
+
+        let deviceId = "9B574574-74A7-4EDF-969D-164CB151B6C3"
+        let userId = "ios-sample-user-legacy"
+
+        XCTAssertTrue(amplitude.isSandboxEnabled())
+        XCTAssertEqual(amplitude.getDeviceId(), deviceId)
+        XCTAssertEqual(amplitude.getUserId(), userId)
+    }
+    #endif
+
     func testInit_Offline() {
         XCTAssertEqual(Amplitude(configuration: configuration).configuration.offline, false)
     }

Tests/AmplitudeTests/Migration/RemnantDataMigrationTests.swift

@@ -46,7 +46,7 @@ final class RemnantDataMigrationTests: XCTestCase {
             instanceName: instanceName,
             migrateLegacyData: migrateLegacyData
         )
-        let amplitude = Amplitude(configuration: configuration)
+        let amplitude = FakeAmplitudeWithSandboxEnabled(configuration: configuration)
 
         let deviceId = "9B574574-74A7-4EDF-969D-164CB151B6C3"
         let userId = "ios-sample-user-legacy"