Add view extension tests

Author: alicerunsonfedora

MCMapsTests/Extensions/ViewExtensionsTests.swift

@@ -0,0 +1,61 @@
+//
+//  ViewExtensionsTests.swift
+//  MCMaps
+//
+//  Created by Marquis Kurt on 05-08-2025.
+//
+
+import SwiftUI
+import Testchamber
+import Testing
+import ViewInspector
+
+@testable import Alidade
+
+extension InspectableView {
+    // NOTE(alicerunsonfedora): This is a pretty stupid fucking hack, but this is the only real way I can guarantee
+    // that I can see whether the specified modifier exists for now, because the modifier itself is private.
+    //
+    // Please, for Renzo's sake, PLEASE USE THE `.modifier(viewType:)` method wherever possible!
+    func containsModifier(named name: String) -> Bool {
+        let description = String(describing: self)
+        return description.contains(name)
+    }
+}
+
+@MainActor
+struct ViewExtensionsTests {
+    @Test func applyGlassEffectWhenAvailable() throws {
+        let rootView = Text("Hello, world!")
+            .glassEffectIfAvailable()
+
+        let sut = try rootView.inspect()
+        #expect(!sut.isAbsent)
+
+
+        let textView = try sut.group().find(text: "Hello, world!")
+        if #available(iOS 19, macOS 16, *) {
+            #expect(textView.containsModifier(named: "GlassEffectModifier"))
+        } else {
+            #expect(!textView.containsModifier(named: "GlassEffectModifier"))
+        }
+    }
+
+    @Test func applyBackgroundExtensionEffectWhenAvailable() throws {
+        let rootView = Text("Hello, world!")
+            .backgroundExtensionEffectIfAvailable()
+
+        let sut = try rootView.inspect()
+        #expect(!sut.isAbsent)
+
+
+        let textView = try sut.group().find(text: "Hello, world!")
+        if #available(iOS 19, macOS 16, *) {
+            #expect(textView.containsModifier(named: "BackgroundExtensionViewModifier"))
+        } else {
+            #expect(!textView.containsModifier(named: "BackgroundExtensionViewModifier"))
+        }
+    }
+}
+
+