diff --git a/Package.swift b/Package.swift
index c048bb3..73d655f 100644
--- a/Package.swift
+++ b/Package.swift
@@ -99,6 +99,11 @@ let package = Package(
             dependencies: [
                 "AndroidFileManager"
             ]),
+        .testTarget(
+            name: "AndroidConfigurationTests",
+            dependencies: [
+                "AndroidFileManager"
+            ]),
         .target(
             name: "AndroidContext",
             dependencies: [
diff --git a/Sources/AndroidFileManager/Configuration.swift b/Sources/AndroidFileManager/Configuration.swift
index 657bf9d..9fd1096 100644
--- a/Sources/AndroidFileManager/Configuration.swift
+++ b/Sources/AndroidFileManager/Configuration.swift
@@ -40,16 +40,16 @@ public struct Configuration: ~Copyable {
 public extension Configuration {
 
     /// Creates a new, empty configuration object.
-    init() throws(AndroidFileManagerError) {
+    init() {
         guard let pointer = AConfiguration_new() else {
-            throw .invalidConfiguration
+            fatalError("AConfiguration_new() failed")
         }
         self.init(pointer: pointer)
     }
 
     /// Creates a configuration populated from the current asset manager state.
-    init(assetManager: borrowing AssetManager) throws(AndroidFileManagerError) {
-        try self.init()
+    init(assetManager: borrowing AssetManager) {
+        self.init()
         AConfiguration_fromAssetManager(pointer, assetManager.pointer)
     }
 }
@@ -192,7 +192,7 @@ public extension Configuration {
     @available(Android 30, *)
     var screenRound: ScreenRound {
         get { ScreenRound(rawValue: AConfiguration_getScreenRound(pointer)) ?? .any }
-        set { AConfiguration_setScreenRound(pointer, newValue.rawValue) }
+        //set { AConfiguration_setScreenRound(pointer, newValue.rawValue) }
     }
 
     /// UI mode type (car, desk, television, etc.).
diff --git a/Sources/AndroidFileManager/Error.swift b/Sources/AndroidFileManager/Error.swift
index 3726656..5ead87e 100644
--- a/Sources/AndroidFileManager/Error.swift
+++ b/Sources/AndroidFileManager/Error.swift
@@ -15,12 +15,6 @@
 /// Android file manager error.
 public enum AndroidFileManagerError: Swift.Error, Equatable, Sendable {
 
-    /// Unable to initialize an `AConfiguration` instance.
-    case invalidConfiguration
-
-    /// Unable to initialize an `AStorageManager` instance.
-    case invalidStorageManager
-
     /// Unable to open asset at the specified path.
     case openAsset(String)
 
diff --git a/Sources/AndroidFileManager/ObbFile.swift b/Sources/AndroidFileManager/ObbFile.swift
index b73c8d0..84a91c3 100644
--- a/Sources/AndroidFileManager/ObbFile.swift
+++ b/Sources/AndroidFileManager/ObbFile.swift
@@ -44,8 +44,8 @@ public actor ObbFile {
     /// - Parameter path: The path to the OBB file.
     /// - Throws: `AndroidFileManagerError.invalidStorageManager` if the underlying
     ///   `AStorageManager` instance could not be created.
-    public init(path: String) throws(AndroidFileManagerError) {
-        let manager = try StorageManager()
+    public init(path: String) {
+        let manager = StorageManager()
         self.init(path: path, manager: manager)
     }
 
diff --git a/Sources/AndroidFileManager/StorageManager.swift b/Sources/AndroidFileManager/StorageManager.swift
index c229152..9a84365 100644
--- a/Sources/AndroidFileManager/StorageManager.swift
+++ b/Sources/AndroidFileManager/StorageManager.swift
@@ -36,9 +36,9 @@ public struct StorageManager: ~Copyable, @unchecked Sendable {
 public extension StorageManager {
 
     /// Creates an `AStorageManager` instance.
-    init() throws(AndroidFileManagerError) {
+    init() {
         guard let handle = Handle.create() else {
-            throw .invalidStorageManager
+            fatalError("AStorageManager_new() failed")
         }
         self.init(handle)
     }
diff --git a/Tests/AndroidConfigurationTests/AndroidConfigurationTests.swift b/Tests/AndroidConfigurationTests/AndroidConfigurationTests.swift
new file mode 100644
index 0000000..de49c53
--- /dev/null
+++ b/Tests/AndroidConfigurationTests/AndroidConfigurationTests.swift
@@ -0,0 +1,138 @@
+//===----------------------------------------------------------------------===//
+//
+// This source file is part of the SwiftAndroidNative open source project
+//
+// Copyright (c) 2024-2026 Skip.dev and SwiftAndroidNative project authors
+// Licensed under Apache License v2.0
+//
+// See LICENSE.txt for license information
+// See CONTRIBUTORS.txt for the list of SwiftAndroidNative project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+//===----------------------------------------------------------------------===//
+
+import Testing
+import AndroidFileManager
+
+struct AndroidConfigurationTests {
+
+    @Test func testProperties() throws {
+        var config = Configuration()
+
+        config.mobileCountryCode = 310
+        #expect(config.mobileCountryCode == 310)
+
+        config.mobileNetworkCode = 260
+        #expect(config.mobileNetworkCode == 260)
+
+        config.languageCode = "en"
+        #expect(config.languageCode == "en")
+
+        config.countryCode = "US"
+        #expect(config.countryCode == "US")
+
+        config.orientation = .portrait
+        #expect(config.orientation == .portrait)
+
+        config.touchscreen = .finger
+        #expect(config.touchscreen == .finger)
+
+        config.density = .xHigh
+        #expect(config.density == .xHigh)
+
+        config.keyboard = .qwerty
+        #expect(config.keyboard == .qwerty)
+
+        config.navigation = .dpad
+        #expect(config.navigation == .dpad)
+
+        config.keysHidden = .hidden
+        #expect(config.keysHidden == .hidden)
+
+        config.navHidden = .hidden
+        #expect(config.navHidden == .hidden)
+
+        config.sdkVersion = 33
+        #expect(config.sdkVersion == 33)
+
+        config.screenSize = .large
+        #expect(config.screenSize == .large)
+
+        config.screenLong = .long
+        #expect(config.screenLong == .long)
+
+        config.uiModeType = .normal
+        #expect(config.uiModeType == .normal)
+
+        config.uiModeNight = .dark
+        #expect(config.uiModeNight == .dark)
+
+        config.screenWidthDp = 1080
+        #expect(config.screenWidthDp == 1080)
+
+        config.screenHeightDp = 1920
+        #expect(config.screenHeightDp == 1920)
+
+        config.smallestScreenWidthDp = 360
+        #expect(config.smallestScreenWidthDp == 360)
+
+        if #available(Android 17, *) {
+            config.layoutDirection = .rightToLeft
+            #expect(config.layoutDirection == .rightToLeft)
+        }
+
+        if #available(Android 30, *) {
+            //config.screenRound = .round
+            #expect(config.screenRound == .any)
+        }
+
+        if #available(Android 34, *) {
+            config.grammaticalGender = .feminine
+            #expect(config.grammaticalGender == .feminine)
+        }
+    }
+
+    @Test func testMatches() throws {
+        // Two default configurations should match each other
+        let a = Configuration()
+        let b = Configuration()
+        let defaultsMatch = a.matches(b)
+        #expect(defaultsMatch)
+
+        // A portrait configuration should match a portrait request
+        var portrait = Configuration()
+        portrait.orientation = .portrait
+        var requestedPortrait = Configuration()
+        requestedPortrait.orientation = .portrait
+        let portraitMatch = portrait.matches(requestedPortrait)
+        #expect(portraitMatch)
+
+        // A portrait configuration should not match a landscape request
+        var requestedLandscape = Configuration()
+        requestedLandscape.orientation = .landscape
+        let landscapeMismatch = portrait.matches(requestedLandscape)
+        #expect(!landscapeMismatch)
+    }
+
+    @Test func testDiff() throws {
+        // Two default configurations should have no differences
+        let a = Configuration()
+        let b = Configuration()
+        let zeroDiff = a.diff(b)
+        #expect(zeroDiff == 0)
+
+        // Configurations differing by MCC should produce a non-zero diff
+        var c = Configuration()
+        c.mobileCountryCode = 310
+        let mccDiff = a.diff(c)
+        #expect(mccDiff != 0)
+
+        // Multiple differing fields should each contribute to the diff mask
+        var d = Configuration()
+        d.orientation = .landscape
+        d.uiModeNight = .dark
+        let mask = a.diff(d)
+        #expect(mask != 0)
+    }
+}