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| 1 | +// Copyright 2025 Google LLC |
| 2 | +// |
| 3 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +// you may not use this file except in compliance with the License. |
| 5 | +// You may obtain a copy of the License at |
| 6 | +// |
| 7 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +// |
| 9 | +// Unless required by applicable law or agreed to in writing, software |
| 10 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +// See the License for the specific language governing permissions and |
| 13 | +// limitations under the License. |
| 14 | + |
| 15 | +import FirebaseAuth |
| 16 | +import FirebaseCore |
| 17 | +import FirebaseStorage |
| 18 | +import FirebaseVertexAI |
| 19 | +import Testing |
| 20 | +import VertexAITestApp |
| 21 | + |
| 22 | +#if canImport(UIKit) |
| 23 | + import UIKit |
| 24 | +#endif // canImport(UIKit) |
| 25 | + |
| 26 | +@testable import struct FirebaseVertexAI.BackendError |
| 27 | + |
| 28 | +@Suite(.serialized) |
| 29 | +/// Test the schema fields. |
| 30 | +struct SchemaTests { |
| 31 | + // Set temperature, topP and topK to lowest allowed values to make responses more deterministic. |
| 32 | + let generationConfig = GenerationConfig(temperature: 0.0, topP: 0.0, topK: 1) |
| 33 | + let safetySettings = [ |
| 34 | + SafetySetting(harmCategory: .harassment, threshold: .blockLowAndAbove), |
| 35 | + SafetySetting(harmCategory: .hateSpeech, threshold: .blockLowAndAbove), |
| 36 | + SafetySetting(harmCategory: .sexuallyExplicit, threshold: .blockLowAndAbove), |
| 37 | + SafetySetting(harmCategory: .dangerousContent, threshold: .blockLowAndAbove), |
| 38 | + SafetySetting(harmCategory: .civicIntegrity, threshold: .blockLowAndAbove), |
| 39 | + ] |
| 40 | + // Candidates and total token counts may differ slightly between runs due to whitespace tokens. |
| 41 | + let tokenCountAccuracy = 1 |
| 42 | + |
| 43 | + let storage: Storage |
| 44 | + let userID1: String |
| 45 | + |
| 46 | + init() async throws { |
| 47 | + userID1 = try await TestHelpers.getUserID() |
| 48 | + storage = Storage.storage() |
| 49 | + } |
| 50 | + |
| 51 | + @Test(arguments: InstanceConfig.allConfigsExceptDeveloperV1) |
| 52 | + func generateContentSchemaItems(_ config: InstanceConfig) async throws { |
| 53 | + let model = VertexAI.componentInstance(config).generativeModel( |
| 54 | + modelName: ModelNames.gemini2FlashLite, |
| 55 | + generationConfig: GenerationConfig( |
| 56 | + responseMIMEType: "application/json", |
| 57 | + responseSchema: |
| 58 | + .array( |
| 59 | + items: .string(description: "The name of the city"), |
| 60 | + description: "A list of city names", |
| 61 | + minItems: 3, |
| 62 | + maxItems: 5 |
| 63 | + ) |
| 64 | + ), |
| 65 | + safetySettings: safetySettings |
| 66 | + ) |
| 67 | + let prompt = "What are the biggest cities in Canada?" |
| 68 | + let response = try await model.generateContent(prompt) |
| 69 | + let text = try #require(response.text).trimmingCharacters(in: .whitespacesAndNewlines) |
| 70 | + let jsonData = try #require(text.data(using: .utf8)) |
| 71 | + let decodedJSON = try JSONDecoder().decode([String].self, from: jsonData) |
| 72 | + #expect(decodedJSON.count >= 3, "Expected at least 3 cities, but got \(decodedJSON.count)") |
| 73 | + #expect(decodedJSON.count <= 5, "Expected at most 5 cities, but got \(decodedJSON.count)") |
| 74 | + } |
| 75 | +} |
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