Fix Sessions Test App with Fake Subscriber (#10684)

FirebaseSessions/Tests/TestApp/AppQualityDevApp.xcodeproj/project.pbxproj

@@ -8,11 +8,16 @@
 
 /* Begin PBXBuildFile section */
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-		1242A440A78627992C815FEE /* BuildFile in Frameworks */ = {isa = PBXBuildFile; };
+		1242A440A78627992C815FEE /* (null) in Frameworks */ = {isa = PBXBuildFile; };
 		42270ED35776E973127DB60D /* Pods_AppQualityDevApp_Performance_iOS.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = BEDB83A06DD433EF06A4FFDC /* Pods_AppQualityDevApp_Performance_iOS.framework */; };
 		687EF774F928ABB40381A18D /* Pods_AppQualityDevApp_Crashlytics_iOS.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 9346F75872574EC9869B351A /* Pods_AppQualityDevApp_Crashlytics_iOS.framework */; };
 		B43C5DD563235C70F18FA91C /* Pods_AppQualityDevApp_CrashlyticsPerformance_iOS.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 1737E4D779EC21E163AEADE0 /* Pods_AppQualityDevApp_CrashlyticsPerformance_iOS.framework */; };
 		CF94D83D29070DF600308FF7 /* UITestsiOS.swift in Sources */ = {isa = PBXBuildFile; fileRef = CF94D83C29070DF600308FF7 /* UITestsiOS.swift */; };
+		DF240E1F2971E996009F38CD /* MockSubscriberSDK.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF240E1E2971E996009F38CD /* MockSubscriberSDK.swift */; };
+		DF240E202971E996009F38CD /* MockSubscriberSDK.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF240E1E2971E996009F38CD /* MockSubscriberSDK.swift */; };
+		DF240E212971E996009F38CD /* MockSubscriberSDK.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF240E1E2971E996009F38CD /* MockSubscriberSDK.swift */; };
+		DF240E222971E996009F38CD /* MockSubscriberSDK.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF240E1E2971E996009F38CD /* MockSubscriberSDK.swift */; };
+		DF240E232971E996009F38CD /* MockSubscriberSDK.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF240E1E2971E996009F38CD /* MockSubscriberSDK.swift */; };
 		DF33DA8C28E4941400F7B88B /* AppQualityDevAppApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF33DA6428E4941100F7B88B /* AppQualityDevAppApp.swift */; };
 		DF33DA8D28E4941400F7B88B /* AppQualityDevAppApp.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF33DA6428E4941100F7B88B /* AppQualityDevAppApp.swift */; };
 		DF33DA8E28E4941400F7B88B /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = DF33DA6528E4941100F7B88B /* ContentView.swift */; };
@@ -35,7 +40,7 @@
 		DF9ABFFE295CD14F00EFFEB7 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = DF68F14228E4A34B00753C7E /* GoogleService-Info.plist */; };
 		E16DE450B5A5D7EC71FCDF4D /* Pods_AppQualityDevApp_macOS.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EDA875D20BA56FABDFC9A521 /* Pods_AppQualityDevApp_macOS.framework */; };
 		E47C7F742B2E926AAFEFF448 /* Pods_AppQualityDevApp_iOS.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3811A234E55662F7F459917A /* Pods_AppQualityDevApp_iOS.framework */; };
-		F0820554CDC281260638D6D7 /* BuildFile in Frameworks */ = {isa = PBXBuildFile; };
+		F0820554CDC281260638D6D7 /* (null) in Frameworks */ = {isa = PBXBuildFile; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -112,6 +117,7 @@
 		CFF3426B813F69EFC3CC95C2 /* Pods-AppQualityDevApp_Performance_iOS.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AppQualityDevApp_Performance_iOS.debug.xcconfig"; path = "Target Support Files/Pods-AppQualityDevApp_Performance_iOS/Pods-AppQualityDevApp_Performance_iOS.debug.xcconfig"; sourceTree = "<group>"; };
 		D18C61BD25DEE281DA8E8007 /* Pods-AppQualityDevAppWatchOS WatchKit Extension.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AppQualityDevAppWatchOS WatchKit Extension.release.xcconfig"; path = "Target Support Files/Pods-AppQualityDevAppWatchOS WatchKit Extension/Pods-AppQualityDevAppWatchOS WatchKit Extension.release.xcconfig"; sourceTree = "<group>"; };
 		DAA707D0793CF2FF718DDDD6 /* Pods-AppQualityDevApp (iOS).debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AppQualityDevApp (iOS).debug.xcconfig"; path = "Target Support Files/Pods-AppQualityDevApp (iOS)/Pods-AppQualityDevApp (iOS).debug.xcconfig"; sourceTree = "<group>"; };
+		DF240E1E2971E996009F38CD /* MockSubscriberSDK.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MockSubscriberSDK.swift; sourceTree = "<group>"; };
 		DF33DA6428E4941100F7B88B /* AppQualityDevAppApp.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppQualityDevAppApp.swift; sourceTree = "<group>"; };
 		DF33DA6528E4941100F7B88B /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
 		DF33DA6628E4941400F7B88B /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
@@ -140,7 +146,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				1242A440A78627992C815FEE /* BuildFile in Frameworks */,
+				1242A440A78627992C815FEE /* (null) in Frameworks */,
 				11B8D8A180615BBC0D6AA351 /* Pods_AppQualityDevApp_iOS.framework in Frameworks */,
 				E47C7F742B2E926AAFEFF448 /* Pods_AppQualityDevApp_iOS.framework in Frameworks */,
 			);
@@ -158,7 +164,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				F0820554CDC281260638D6D7 /* BuildFile in Frameworks */,
+				F0820554CDC281260638D6D7 /* (null) in Frameworks */,
 				687EF774F928ABB40381A18D /* Pods_AppQualityDevApp_Crashlytics_iOS.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -244,6 +250,7 @@
 				DF68F14228E4A34B00753C7E /* GoogleService-Info.plist */,
 				DF33DA6428E4941100F7B88B /* AppQualityDevAppApp.swift */,
 				DF33DA6528E4941100F7B88B /* ContentView.swift */,
+				DF240E1E2971E996009F38CD /* MockSubscriberSDK.swift */,
 				DF33DA6628E4941400F7B88B /* Assets.xcassets */,
 			);
 			path = Shared;
@@ -703,6 +710,7 @@
 			files = (
 				DF33DA8E28E4941400F7B88B /* ContentView.swift in Sources */,
 				DF33DA8C28E4941400F7B88B /* AppQualityDevAppApp.swift in Sources */,
+				DF240E1F2971E996009F38CD /* MockSubscriberSDK.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -712,6 +720,7 @@
 			files = (
 				DF33DA8F28E4941400F7B88B /* ContentView.swift in Sources */,
 				DF33DA8D28E4941400F7B88B /* AppQualityDevAppApp.swift in Sources */,
+				DF240E232971E996009F38CD /* MockSubscriberSDK.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -721,6 +730,7 @@
 			files = (
 				DF8AEF2A295CA3F40013BF14 /* ContentView.swift in Sources */,
 				DF8AEF2B295CA3F40013BF14 /* AppQualityDevAppApp.swift in Sources */,
+				DF240E202971E996009F38CD /* MockSubscriberSDK.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -730,6 +740,7 @@
 			files = (
 				DF9759AB295CE10700EF01BA /* ContentView.swift in Sources */,
 				DF9759AC295CE10700EF01BA /* AppQualityDevAppApp.swift in Sources */,
+				DF240E222971E996009F38CD /* MockSubscriberSDK.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -739,6 +750,7 @@
 			files = (
 				DF9ABFF8295CD14F00EFFEB7 /* ContentView.swift in Sources */,
 				DF9ABFF9295CD14F00EFFEB7 /* AppQualityDevAppApp.swift in Sources */,
+				DF240E212971E996009F38CD /* MockSubscriberSDK.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

FirebaseSessions/Tests/TestApp/Shared/AppQualityDevAppApp.swift

@@ -15,10 +15,15 @@
 
 import SwiftUI
 import FirebaseCore
+import FirebaseSessions
 
 @main
-struct AppQualityDevAppApp: App {
-  init() {
+class AppQualityDevAppApp: App {
+  required init() {
+    // In other Product SDKs, this is called via `+ load`, but
+    // we're faking that here because Swift doesn't have `+ load`
+    MockSubscriberSDK.addDependency()
+
     FirebaseApp.configure()
   }
 

FirebaseSessions/Tests/TestApp/Shared/MockSubscriberSDK.swift

@@ -0,0 +1,79 @@
+//
+// Copyright 2022 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 FirebaseSessions
+
+// Avoids exposing internal FirebaseCore APIs to Swift users.
+@_implementationOnly import FirebaseCoreExtension
+
+@objc(FIRMockSubscriberSDKProtocol)
+protocol MockSubscriberSDKProtocol {
+  func emptyProtocol()
+}
+
+///
+/// The MockSubscriberSDK pretends to be Firebase Performance because without
+/// any Integrated Product SDKs installed, the Sessions SDK will not send events. This
+/// is because data collection is handled only in product SDKs.
+///
+@objc(FIRMockSubscriberSDK) final class MockSubscriberSDK: NSObject, Library, SessionsSubscriber,
+  MockSubscriberSDKProtocol {
+  static func addDependency() {
+    FirebaseApp.registerInternalLibrary(
+      MockSubscriberSDK.self,
+      withName: "mock-firebase-sessions-subscriber-sdk"
+    )
+    SessionsDependencies.addDependency(name: SessionsSubscriberName.Performance)
+  }
+
+  init(app: FirebaseApp) {
+    super.init()
+
+    let sessions = ComponentType<SessionsProvider>.instance(for: SessionsProvider.self,
+                                                            in: app.container)
+    sessions.register(subscriber: self)
+  }
+
+  // MARK: - Library Conformance
+
+  static func componentsToRegister() -> [Component] {
+    let sessionsDependency = Dependency(with: SessionsProvider.self, isRequired: false)
+    return [Component(MockSubscriberSDKProtocol.self,
+                      instantiationTiming: .alwaysEager,
+                      dependencies: [sessionsDependency]) { container, isCacheable in
+        // Sessions SDK only works for the default app
+        guard let app = container.app, app.isDefaultApp else { return nil }
+        isCacheable.pointee = true
+        return self.init(app: app)
+      }]
+  }
+
+  // MARK: - SessionsSubscriber Conformance
+
+  func onSessionChanged(_ session: FirebaseSessions.SessionDetails) {}
+
+  var isDataCollectionEnabled: Bool {
+    return true
+  }
+
+  var sessionsSubscriberName: FirebaseSessions.SessionsSubscriberName {
+    return FirebaseSessions.SessionsSubscriberName.Performance
+  }
+
+  // MARK: - MockSubscriberSDKProtocol Conformance
+
+  func emptyProtocol() {}
+}