Minimize signins in VertexAI integration tests (#14697)

Author: paulb777

FirebaseVertexAI/Tests/TestApp/Tests/Integration/GenerateContentIntegrationTests.swift

@@ -43,12 +43,7 @@ struct GenerateContentIntegrationTests {
   let userID1: String
 
   init() async throws {
-    let authResult = try await Auth.auth().signIn(
-      withEmail: Credentials.emailAddress1,
-      password: Credentials.emailPassword1
-    )
-    userID1 = authResult.user.uid
-
+    userID1 = try await TestHelpers.getUserID()
     storage = Storage.storage()
   }
 

FirebaseVertexAI/Tests/TestApp/Tests/Integration/ImagenIntegrationTests.swift

@@ -39,12 +39,7 @@ struct ImagenIntegrationTests {
   var userID1: String
 
   init() async throws {
-    let authResult = try await Auth.auth().signIn(
-      withEmail: Credentials.emailAddress1,
-      password: Credentials.emailPassword1
-    )
-    userID1 = authResult.user.uid
-
+    userID1 = try await TestHelpers.getUserID()
     vertex = VertexAI.vertexAI()
     storage = Storage.storage()
   }

FirebaseVertexAI/Tests/TestApp/Tests/Integration/IntegrationTests.swift

@@ -48,12 +48,7 @@ final class IntegrationTests: XCTestCase {
   var userID1 = ""
 
   override func setUp() async throws {
-    let authResult = try await Auth.auth().signIn(
-      withEmail: Credentials.emailAddress1,
-      password: Credentials.emailPassword1
-    )
-    userID1 = authResult.user.uid
-
+    userID1 = try await TestHelpers.getUserID()
     vertex = VertexAI.vertexAI()
     model = vertex.generativeModel(
       modelName: "gemini-2.0-flash",

FirebaseVertexAI/Tests/TestApp/Tests/Integration/TestHelpers.swift

@@ -0,0 +1,30 @@
+// Copyright 2025 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 FirebaseAuth
+import FirebaseCore
+
+enum TestHelpers {
+  static func getUserID() async throws -> String {
+    if let user = Auth.auth().currentUser {
+      return user.uid
+    } else {
+      let authResult = try await Auth.auth().signIn(
+        withEmail: Credentials.emailAddress1,
+        password: Credentials.emailPassword1
+      )
+      return authResult.user.uid
+    }
+  }
+}

FirebaseVertexAI/Tests/TestApp/VertexAITestApp.xcodeproj/project.pbxproj

@@ -27,6 +27,7 @@
 		86D77DFE2D7B5C86003D155D /* GoogleService-Info-Spark.plist in Resources */ = {isa = PBXBuildFile; fileRef = 86D77DFD2D7B5C86003D155D /* GoogleService-Info-Spark.plist */; };
 		86D77E022D7B63AF003D155D /* Constants.swift in Sources */ = {isa = PBXBuildFile; fileRef = 86D77E012D7B63AC003D155D /* Constants.swift */; };
 		86D77E042D7B6C9D003D155D /* InstanceConfig.swift in Sources */ = {isa = PBXBuildFile; fileRef = 86D77E032D7B6C95003D155D /* InstanceConfig.swift */; };
+		DEF0BB4F2DA74F680093E9F4 /* TestHelpers.swift in Sources */ = {isa = PBXBuildFile; fileRef = DEF0BB4E2DA74F460093E9F4 /* TestHelpers.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -59,6 +60,7 @@
 		86D77DFD2D7B5C86003D155D /* GoogleService-Info-Spark.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = "GoogleService-Info-Spark.plist"; sourceTree = "<group>"; };
 		86D77E012D7B63AC003D155D /* Constants.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Constants.swift; sourceTree = "<group>"; };
 		86D77E032D7B6C95003D155D /* InstanceConfig.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InstanceConfig.swift; sourceTree = "<group>"; };
+		DEF0BB4E2DA74F460093E9F4 /* TestHelpers.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TestHelpers.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -137,6 +139,7 @@
 		868A7C572CCC27AF00E449DD /* Integration */ = {
 			isa = PBXGroup;
 			children = (
+				DEF0BB4E2DA74F460093E9F4 /* TestHelpers.swift */,
 				8689CDCB2D7F8BCF00BF426B /* CountTokensIntegrationTests.swift */,
 				868A7C4D2CCC1F4700E449DD /* Credentials.swift */,
 				8661386D2CC943DE00F4B78E /* IntegrationTests.swift */,
@@ -289,6 +292,7 @@
 			files = (
 				8689CDCC2D7F8BD700BF426B /* CountTokensIntegrationTests.swift in Sources */,
 				86D77E042D7B6C9D003D155D /* InstanceConfig.swift in Sources */,
+				DEF0BB4F2DA74F680093E9F4 /* TestHelpers.swift in Sources */,
 				868A7C4F2CCC229F00E449DD /* Credentials.swift in Sources */,
 				864F8F712D4980DD0002EA7E /* ImagenIntegrationTests.swift in Sources */,
 				862218812D04E098007ED2D4 /* IntegrationTestUtils.swift in Sources */,