Implement userAgent for Data Connect

Package.swift

@@ -19,8 +19,6 @@
 import class Foundation.ProcessInfo
 import PackageDescription
 
-// let firebaseVersion = "10.25.0"
-
 let package = Package(
   name: "FirebaseDataConnect",
   platforms: [.iOS(.v12), .macCatalyst(.v13), .macOS(.v10_15), .tvOS(.v13), .watchOS(.v7)],
@@ -32,7 +30,7 @@ let package = Package(
   ],
   dependencies: [
     .package(url: "https://github.com/firebase/firebase-ios-sdk",
-             from: "11.0.0"),
+             branch: "nc/demo-reg"),
     .package(
       url: "https://github.com/grpc/grpc-swift.git",
       from: "1.19.1" // TODO: Constrain to a range at time of release

Sources/DataConnectSettings.swift

@@ -16,6 +16,7 @@ import Foundation
 
 @available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
 public struct DataConnectSettings: Hashable, Equatable {
+  static let version = "11.3.0-beta"
   public private(set) var host: String
   public private(set) var port: Int
   public private(set) var sslEnabled: Bool

Sources/Internal/Component.swift

@@ -0,0 +1,23 @@
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import Foundation
+
+/// Class for registration with the Firebase component system, including userAgent functionality.
+@available(macOS 10.15, iOS 13, tvOS 13, watchOS 6, *)
+@objc(FIRDataConnectComponent) class DataConnectComponent: NSObject {
+  @objc class func sdkVersion() -> String {
+    return DataConnectSettings.version
+  }
+}

Tests/Unit/UserAgentTests.swift

@@ -0,0 +1,43 @@
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import Foundation
+import XCTest
+
+import FirebaseCore
+@testable import FirebaseDataConnect
+
+final class UserAgentTests: XCTestCase {
+  static var defaultApp: FirebaseApp?
+
+  static var options: FirebaseOptions = {
+    let options = FirebaseOptions(googleAppID: "0:0000000000000:ios:0000000000000000",
+                                  gcmSenderID: "00000000000000000-00000000000-000000000")
+    options.projectID = "fdc-test"
+    options.apiKey = "testDummyApiKey"
+    return options
+  }()
+
+  override class func setUp() {
+    FirebaseApp.configure(options: options)
+    defaultApp = FirebaseApp.app()
+  }
+
+  /// Confirm that Data Connect gets added to the user agent.
+  func testUserAgent() {
+    let userAgent = FirebaseApp.firebaseUserAgent()
+    let version = DataConnectSettings.version
+    XCTAssertTrue(userAgent.contains("fire-dc/\(version)"))
+  }
+}