Added Unit Tests

Tests/WebUITests/WeakReference.swift

@@ -0,0 +1,8 @@
+final class WeakReference<T> where T : AnyObject {
+    weak var value: T?
+
+    func bypass(_ value: T) -> T {
+        self.value = value
+        return value
+    }
+}

Tests/WebUITests/WebViewTests.swift

@@ -2,6 +2,14 @@
 import XCTest
 
 final class WebViewTests: XCTestCase {
+    @MainActor
+    func test_configuration_is_weakly_referenced() {
+        var configuration = WebViewConfigurationMock?.some(.init())
+        let sut = WebView(configuration: configuration)
+        configuration = nil
+        XCTAssertNil(sut.configuration)
+    }
+
     @MainActor
     func test_applyModifiers_uiDelegate() {
         let uiDelegateMock = UIDelegateMock()
@@ -11,6 +19,16 @@ final class WebViewTests: XCTestCase {
         XCTAssertTrue(uiDelegateMock === webViewMock.uiDelegate)
     }
 
+    @MainActor
+    func test_uiDelegate_is_weakly_referenced() {
+        let actual = WeakReference<UIDelegateMock>()
+        let sut = WebView().uiDelegate(actual.bypass(.init()))
+        var webViewMock = EnhancedWKWebViewMock?.some(.init())
+        sut.applyModifiers(to: webViewMock!)
+        webViewMock = nil
+        XCTAssertNil(actual.value)
+    }
+
     @MainActor
     func test_applyModifiers_navigationDelegate() {
         let navigationDelegateMock = NavigationDelegateMock()
@@ -20,6 +38,16 @@ final class WebViewTests: XCTestCase {
         XCTAssertTrue(navigationDelegateMock === webViewMock.navigationDelegateProxy.delegate)
     }
 
+    @MainActor
+    func test_navigationDelegate_is_weakly_referenced() {
+        let actual = WeakReference<NavigationDelegateMock>()
+        let sut = WebView().navigationDelegate(actual.bypass(.init()))
+        var webViewMock = EnhancedWKWebViewMock?.some(.init())
+        sut.applyModifiers(to: webViewMock!)
+        webViewMock = nil
+        XCTAssertNil(actual.value)
+    }
+
     @MainActor
     func test_applyModifiers_isInspectable() {
         let sut = WebView().allowsInspectable(true)