Add unit test for SecureBackupRootState

Author: bmarty

features/securebackup/impl/src/test/kotlin/io/element/android/features/securebackup/impl/root/SecureBackupRootStateTest.kt

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.features.securebackup.impl.root
+
+import com.google.common.truth.Truth.assertThat
+import io.element.android.libraries.architecture.AsyncData
+import io.element.android.libraries.matrix.api.encryption.BackupState
+import io.element.android.libraries.matrix.test.AN_EXCEPTION
+import org.junit.Test
+
+class SecureBackupRootStateTest {
+    @Test
+    fun `isKeyStorageEnabled should be true for all these backup states`() {
+        listOf(
+            BackupState.CREATING,
+            BackupState.ENABLING,
+            BackupState.RESUMING,
+            BackupState.DOWNLOADING,
+            BackupState.ENABLED,
+        ).forEach { backupState ->
+            assertThat(aSecureBackupRootState(backupState = backupState).isKeyStorageEnabled).isTrue()
+        }
+    }
+
+    @Test
+    fun `isKeyStorageEnabled should be false for all these backup states`() {
+        listOf(
+            BackupState.WAITING_FOR_SYNC,
+            BackupState.DISABLING,
+        ).forEach { backupState ->
+            assertThat(aSecureBackupRootState(backupState = backupState).isKeyStorageEnabled).isFalse()
+        }
+    }
+
+    @Test
+    fun `isKeyStorageEnabled should have value depending on doesBackupExistOnServer when state is UNKNOWN`() {
+        assertThat(
+            aSecureBackupRootState(
+                backupState = BackupState.UNKNOWN,
+                doesBackupExistOnServer = AsyncData.Success(true),
+            ).isKeyStorageEnabled
+        ).isTrue()
+
+        listOf(
+            AsyncData.Uninitialized,
+            AsyncData.Loading(),
+            AsyncData.Failure(AN_EXCEPTION),
+            AsyncData.Success(false),
+        ).forEach { doesBackupExistOnServer ->
+            assertThat(
+                aSecureBackupRootState(
+                    backupState = BackupState.UNKNOWN,
+                    doesBackupExistOnServer = doesBackupExistOnServer,
+                ).isKeyStorageEnabled
+            ).isFalse()
+        }
+    }
+}