Add testCase that validates the association file

SwiftUIDemoAppUITests/Tests/DeeplinkTests.swift

@@ -28,6 +28,18 @@ final class DeeplinkTests: StreamTestCase {
         static let customScheme: URL = .init(string: "streamvideo://video/demos?id=test-call")!
     }
 
+    func test_associationFile_validationWasSuccessful() throws {
+        let contentData = try Data(contentsOf: .init(string: "https://getstream.io/.well-known/apple-app-site-association")!)
+        let content = try XCTUnwrap(String(data: contentData, encoding: .utf8))
+            .trimmingCharacters(in: .whitespacesAndNewlines)
+            .replacingOccurrences(of: "\n", with: "")
+            .replacingOccurrences(of: " ", with: "")
+
+        XCTAssertEqual(content, """
+        {"applinks":{"apps":[],"details":[{"appID":"EHV7XZLAHA.io.getstream.iOS.VideoDemoApp","paths":["/video/demos/*","/video/demos"]}]}}
+        """)
+    }
+
     func test_universalLink_production_joinsExpectedCall() {
         WHEN("") {
             Safari.openUniversalLinkFromSmartBanner(MockDeeplink.production)
@@ -40,9 +52,6 @@ final class DeeplinkTests: StreamTestCase {
     }
 
     func test_customSchemeURL_joinsExpectedCall() {
-        GIVEN("") {
-            app.terminate()
-        }
         WHEN("User opens a URL that contains a custom scheme") {
             Safari.openApp(MockDeeplink.customScheme)
         }