Get fake console tests working

Author: ncooke3

FirebaseRemoteConfig/SwiftNew/ConfigFetch.swift

@@ -103,11 +103,11 @@ extension Installations: InstallationsProtocol {}
   /// Guard the read/write operation.
   private let lockQueue: DispatchQueue
 
-  private let installations: (any InstallationsProtocol)?
+  public var installations: (any InstallationsProtocol)?
 
   /// Provide fetchSession for tests to override.
   /// - Note: Managed internally by the fetch instance.
-  @objc public var fetchSession: any RCNConfigFetchSession
+  public var fetchSession: any RCNConfigFetchSession
 
   private let namespace: String
 
@@ -180,8 +180,13 @@ extension Installations: InstallationsProtocol {}
     super.init()
   }
 
+  public var disableNetworkSessionRecreation: Bool = false
+
   /// Add the ability to update NSURLSession's timeout after a session has already been created.
   @objc public func recreateNetworkSession() {
+    if disableNetworkSessionRecreation {
+      return
+    }
     fetchSession.invalidateAndCancel()
     fetchSession = configuredFetchSessionProvider(settings)
   }

FirebaseRemoteConfig/Tests/Swift/FakeUtils/URLSessionPartialMock.swift

@@ -45,6 +45,10 @@ class URLSessionMock: URLSession, @unchecked Sendable {
   var response: URLResponse?
   var etag = ""
 
+  override func invalidateAndCancel() {
+    // Do nothing
+  }
+
   override func dataTask(with request: URLRequest,
                          completionHandler: @escaping (Data?, URLResponse?, Error?) -> Void)
     -> URLSessionDataTask {

FirebaseRemoteConfig/Tests/Swift/SwiftAPI/APITestBase.swift

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 import FirebaseCore
+import FirebaseInstallations
 import FirebaseRemoteConfig
 
 #if SWIFT_PACKAGE
@@ -21,6 +22,16 @@ import FirebaseRemoteConfig
 
 import XCTest
 
+class InstallationsFake: InstallationsProtocol {
+  func authToken(completion: @escaping (InstallationsAuthTokenResult?, (any Error)?) -> Void) {
+    completion(nil, nil)
+  }
+
+  func installationID(completion: @escaping (String?, (any Error)?) -> Void) {
+    completion("fake_installation_id", nil)
+  }
+}
+
 class APITestBase: XCTestCase {
   static var useFakeConfig: Bool!
   static var mockedFetch: Bool!
@@ -80,14 +91,15 @@ class APITestBase: XCTestCase {
     if APITests.useFakeConfig {
       if !APITests.mockedFetch {
         APITests.mockedFetch = true
-        config.configFetch = FetchMocks.mockFetch(config.configFetch)
+        config.configFetch.installations = InstallationsFake()
       }
       if !APITests.mockedRealtime {
         APITests.mockedRealtime = true
         config.configRealtime = RealtimeMocks.mockRealtime(config.configRealtime)
       }
       fakeConsole = FakeConsole()
       config.configFetch.fetchSession = URLSessionMock(with: fakeConsole)
+      config.configFetch.disableNetworkSessionRecreation = true
 
       fakeConsole.config = [Constants.key1: Constants.value1,
                             Constants.jsonKey: jsonValue,