Add public get tags method

MIGRATION_GUIDE.md

@@ -271,7 +271,7 @@ The user name space is accessible via `OneSignal.User` (in Kotlin) or `OneSignal
 | `fun addTags(tags: Map<String, String>)`                                      | `void addTags(Map<String, String> tags)`                                      | *Add multiple tags for the current user.  Tags are key:value pairs used as building blocks for targeting specific users and/or personalizing messages. If the tag key already exists, it will be replaced with the value provided here.* |
 | `fun removeTag(key: String)`                                                  | `void removeTag(String key)`                                                  | *Remove the data tag with the provided key from the current user.*                                                                                                                                                                       |
 | `fun removeTags(keys: Collection<String>)`                                    | `void removeTags(Collection<String> keys)`                                    | *Remove multiple tags from the current user.*                                                                                                                                                                                            |
-
+| `fun getTags()`                                                               | `Map<String, String> getTags()`                                               | *Return a copy of all local tags from the current user.*   
 
 **Session Namespace**
 The session namespace is accessible via `OneSignal.Session` (in Kotlin) or `OneSignal.getSession()` (in Java) and provides access to session-scoped functionality.

OneSignalSDK/onesignal/core/src/main/java/com/onesignal/user/IUserManager.kt

@@ -133,4 +133,9 @@ interface IUserManager {
      * @param keys The collection of keys, all of which will be removed from the current user.
      */
     fun removeTags(keys: Collection<String>)
+
+    /**
+     * Return a copy of all local tags from the current user.
+     */
+    fun getTags(): Map<String, String>
 }

OneSignalSDK/onesignal/core/src/main/java/com/onesignal/user/internal/UserManager.kt

@@ -23,9 +23,6 @@ internal open class UserManager(
     val externalId: String?
         get() = _identityModel.externalId
 
-    val tags: Map<String, String>
-        get() = _propertiesModel.tags
-
     val aliases: Map<String, String>
         get() = _identityModel.filter { it.key != IdentityModel::id.name }.toMap()
 
@@ -218,4 +215,8 @@ internal open class UserManager(
             _propertiesModel.tags.remove(it)
         }
     }
+
+    override fun getTags(): Map<String, String> {
+        return _propertiesModel.tags.toMap()
+    }
 }

OneSignalSDK/onesignal/core/src/test/java/com/onesignal/user/internal/UserManagerTests.kt

@@ -6,6 +6,7 @@ import com.onesignal.user.internal.subscriptions.ISubscriptionManager
 import com.onesignal.user.internal.subscriptions.SubscriptionList
 import io.kotest.core.spec.style.FunSpec
 import io.kotest.matchers.shouldBe
+import io.kotest.matchers.shouldNotBe
 import io.kotest.runner.junit4.KotestTestRunner
 import io.mockk.every
 import io.mockk.just
@@ -107,8 +108,8 @@ class UserManagerTests : FunSpec({
             UserManager(mockSubscriptionManager, MockHelper.identityModelStore(), propertiesModelStore, MockHelper.languageContext())
 
         // When
-        val tag1 = userManager.tags["my-tag-key1"]
-        val tag2 = userManager.tags["my-tag-key2"]
+        val tag1 = propertiesModelStore.model.tags["my-tag-key1"]
+        val tag2 = propertiesModelStore.model.tags["my-tag-key2"]
 
         // add
         userManager.addTag("my-tag-key5", "my-tag-value5")
@@ -135,6 +136,31 @@ class UserManagerTests : FunSpec({
         propertiesModelStore.model.tags["my-tag-key3"] shouldBe null
     }
 
+    test("getTags returns a copy of tags") {
+        // Given
+        val mockSubscriptionManager = mockk<ISubscriptionManager>()
+        val propertiesModelStore =
+            MockHelper.propertiesModelStore {
+                it.tags["my-tag-key1"] = "my-tag-value1"
+            }
+
+        val userManager = UserManager(mockSubscriptionManager, MockHelper.identityModelStore(), propertiesModelStore, MockHelper.languageContext())
+
+        // When
+        val tagSnapshot1 = userManager.getTags()
+
+        // Then
+        tagSnapshot1.size shouldBe propertiesModelStore.model.tags.size
+        tagSnapshot1["my-tag-key1"] shouldBe propertiesModelStore.model.tags["my-tag-key1"]
+
+        // Modify
+        userManager.addTag("my-tag-key2", "my-tag-value2")
+        userManager.getTags().size shouldBe 2
+
+        // Then
+        tagSnapshot1.size shouldNotBe userManager.getTags().size
+    }
+
     test("subscriptions are backed by the subscriptions manager") {
         // Given
         val subscriptionList = SubscriptionList(listOf(), UninitializedPushSubscription())