opencode/packages/ai/test/image.test.ts
opencode-agent[bot] 8cb9361149
feat(ai): add Google image generation (#37781)
Co-authored-by: Aiden Cline <rekram1-node@users.noreply.github.com>
2026-07-20 15:12:22 -05:00

373 lines
14 KiB
TypeScript

import { describe, expect } from "bun:test"
import { Effect, Layer } from "effect"
import { HttpClientRequest } from "effect/unstable/http"
import { Image, ImageClient } from "../src"
import { Google, OpenAI } from "../src/providers"
import { it } from "./lib/effect"
import { dynamicResponse } from "./lib/http"
describe("Image", () => {
it.effect("generates images through the OpenAI Images API", () =>
Effect.gen(function* () {
const response = yield* Image.generate({
model: OpenAI.configure({
apiKey: "test",
baseURL: "https://api.openai.test/v1",
queryParams: { "api-version": "v1" },
http: { body: { deployment: "test" }, headers: { "x-default": "yes" } },
}).image("gpt-image-2"),
prompt: "A robot tending a rooftop garden",
options: {
n: 2,
size: "2048x2048",
quality: "future-quality",
outputFormat: "jpeg",
output_format: "avif",
outputCompression: 30,
output_compression: 40,
background: "opaque",
native_default: true,
future_option: true,
},
http: {
body: { output_format: "webp", output_compression: 50, future_option: "http", request_metadata: "value" },
headers: { "x-request": "yes" },
query: { trace: "1" },
},
})
expect(response.images).toHaveLength(2)
expect(response.image?.mediaType).toBe("image/webp")
expect(response.image?.data).toEqual(Uint8Array.from([1, 2, 3]))
expect(response.image?.providerMetadata).toEqual({ openai: { revisedPrompt: "A precise robot" } })
expect(response.usage?.totalTokens).toBe(12)
}).pipe(
Effect.provide(
ImageClient.layer.pipe(
Layer.provide(
dynamicResponse((input) =>
Effect.gen(function* () {
const request = yield* HttpClientRequest.toWeb(input.request).pipe(Effect.orDie)
expect(request.url).toBe("https://api.openai.test/v1/images/generations?api-version=v1&trace=1")
expect(request.headers.get("authorization")).toBe("Bearer test")
expect(request.headers.get("x-default")).toBe("yes")
expect(request.headers.get("x-request")).toBe("yes")
expect(JSON.parse(input.text)).toEqual({
model: "gpt-image-2",
prompt: "A robot tending a rooftop garden",
n: 2,
size: "2048x2048",
quality: "future-quality",
background: "opaque",
output_format: "webp",
output_compression: 50,
native_default: true,
future_option: "http",
deployment: "test",
request_metadata: "value",
})
return input.respond(
JSON.stringify({
data: [{ b64_json: "AQID", revised_prompt: "A precise robot" }, { b64_json: "BAUG" }],
output_format: "webp",
usage: { input_tokens: 4, output_tokens: 8, total_tokens: 12 },
}),
{ headers: { "content-type": "application/json" } },
)
}),
),
),
),
),
),
)
it.effect("preserves native snake_case and unknown request options", () =>
Image.generate({
model: OpenAI.configure({
apiKey: "test",
baseURL: "https://api.openai.test/v1",
}).image("future-image-model"),
prompt: "A lighthouse in fog",
options: {
outputFormat: "jpeg",
output_format: "avif",
outputCompression: 30,
output_compression: 40,
provider_future_option: { enabled: true },
},
}).pipe(
Effect.tap((response) =>
Effect.sync(() => {
expect(response.image?.mediaType).toBe("image/avif")
}),
),
Effect.provide(
ImageClient.layer.pipe(
Layer.provide(
dynamicResponse((input) => {
expect(JSON.parse(input.text)).toEqual({
model: "future-image-model",
prompt: "A lighthouse in fog",
output_format: "avif",
output_compression: 40,
provider_future_option: { enabled: true },
})
return Effect.succeed(
input.respond(JSON.stringify({ data: [{ b64_json: "AQID" }] }), {
headers: { "content-type": "application/json" },
}),
)
}),
),
),
),
),
)
it.effect("generates images through the Google generateContent API", () =>
Effect.gen(function* () {
const response = yield* Image.generate({
model: Google.configure({
apiKey: "test",
baseURL: "https://generativelanguage.test/v1beta/",
headers: { "x-default": "yes" },
http: { body: { labels: { deployment: "test" } }, query: { api: "v1" } },
}).image("any-model-id"),
prompt: "A robot tending a rooftop garden",
options: {
aspectRatio: "16:9",
imageSize: "2K",
seed: 42,
thinkingLevel: "HIGH",
includeThoughts: true,
futureOption: true,
imageConfig: { aspectRatio: "4:3", nativeImageOption: true },
thinkingConfig: { thinkingLevel: "LOW", nativeThinkingOption: true },
},
http: {
body: {
safetySettings: [],
generationConfig: {
imageConfig: { aspectRatio: "3:2", httpImageOption: true },
thinkingConfig: { includeThoughts: false, httpThinkingOption: true },
futureOption: "http",
httpOption: true,
},
},
headers: { "x-request": "yes" },
query: { trace: "1" },
},
})
expect(response.images).toHaveLength(3)
expect(response.images.map((image) => image.data)).toEqual([
Uint8Array.from([1, 2, 3]),
Uint8Array.from([4, 5, 6]),
Uint8Array.from([7, 8, 9]),
])
expect(response.images.map((image) => image.mediaType)).toEqual(["image/png", "image/jpeg", "image/webp"])
expect(response.images[0].providerMetadata).toMatchObject({ google: { thoughtSignature: "signature-1" } })
expect(response.images[1].providerMetadata).toMatchObject({
google: { candidateIndex: 0, partIndex: 3, finishReason: "STOP" },
})
expect(response.images[2].providerMetadata).toMatchObject({ google: { candidateIndex: 7, partIndex: 0 } })
expect(response.usage?.inputTokens).toBe(5)
expect(response.usage?.outputTokens).toBe(10)
expect(response.usage?.reasoningTokens).toBe(3)
expect(response.usage?.providerMetadata).toMatchObject({ google: { serviceTier: "STANDARD" } })
expect(response.providerMetadata).toEqual({
google: {
modelVersion: "gemini-3.1-flash-image",
responseId: "response-1",
promptFeedback: undefined,
candidates: [
{
index: 0,
finishReason: "STOP",
finishMessage: undefined,
safetyRatings: [{ category: "safe" }],
citationMetadata: undefined,
groundingMetadata: undefined,
parts: [
{
type: "inlineData",
mediaType: "image/png",
thought: undefined,
thoughtSignature: "signature-1",
},
{ type: "text", text: "planning", thought: true, thoughtSignature: "text-signature" },
{
type: "inlineData",
mediaType: "image/png",
thought: true,
thoughtSignature: "draft-signature",
},
{
type: "inlineData",
mediaType: "image/jpeg",
thought: undefined,
thoughtSignature: undefined,
},
],
},
{
index: 7,
finishReason: undefined,
finishMessage: undefined,
safetyRatings: undefined,
citationMetadata: undefined,
groundingMetadata: undefined,
parts: [
{
type: "inlineData",
mediaType: "image/webp",
thought: undefined,
thoughtSignature: undefined,
},
],
},
],
},
})
}).pipe(
Effect.provide(
ImageClient.layer.pipe(
Layer.provide(
dynamicResponse((input) =>
Effect.gen(function* () {
const request = yield* HttpClientRequest.toWeb(input.request).pipe(Effect.orDie)
expect(request.url).toBe(
"https://generativelanguage.test/v1beta/models/any-model-id:generateContent?api=v1&trace=1",
)
expect(request.headers.get("x-goog-api-key")).toBe("test")
expect(request.headers.get("x-default")).toBe("yes")
expect(request.headers.get("x-request")).toBe("yes")
expect(JSON.parse(input.text)).toEqual({
contents: [{ role: "user", parts: [{ text: "A robot tending a rooftop garden" }] }],
generationConfig: {
responseModalities: ["IMAGE"],
imageConfig: {
aspectRatio: "3:2",
imageSize: "2K",
nativeImageOption: true,
httpImageOption: true,
},
seed: 42,
thinkingConfig: {
thinkingLevel: "LOW",
includeThoughts: false,
nativeThinkingOption: true,
httpThinkingOption: true,
},
futureOption: "http",
httpOption: true,
},
labels: { deployment: "test" },
safetySettings: [],
})
return input.respond(
JSON.stringify({
candidates: [
{
content: {
parts: [
{
inlineData: { mimeType: "image/png", data: "AQID" },
thoughtSignature: "signature-1",
},
{ text: "planning", thought: true, thoughtSignature: "text-signature" },
{
inlineData: { mimeType: "image/png", data: "CgsM" },
thought: true,
thoughtSignature: "draft-signature",
},
{ inlineData: { mimeType: "image/jpeg", data: "BAUG" } },
],
},
finishReason: "STOP",
safetyRatings: [{ category: "safe" }],
},
{
index: 7,
content: { parts: [{ inlineData: { mimeType: "image/webp", data: "BwgJ" } }] },
},
],
usageMetadata: {
promptTokenCount: 5,
candidatesTokenCount: 7,
thoughtsTokenCount: 3,
totalTokenCount: 15,
serviceTier: "STANDARD",
},
modelVersion: "gemini-3.1-flash-image",
responseId: "response-1",
}),
{ headers: { "content-type": "application/json" } },
)
}),
),
),
),
),
),
)
it.effect("includes Google diagnostics when no final image is returned", () =>
Image.generate({
model: Google.configure({ apiKey: "test", baseURL: "https://generativelanguage.test/v1beta" }).image(
"gemini-3.1-flash-image",
),
prompt: "A robot tending a rooftop garden",
}).pipe(
Effect.flip,
Effect.tap((error) =>
Effect.sync(() => {
expect(error.reason._tag).toBe("InvalidProviderOutput")
if (error.reason._tag !== "InvalidProviderOutput") return
expect(error.reason.message).toContain("finish reasons: IMAGE_SAFETY")
expect(error.reason.providerMetadata).toEqual({
google: {
promptFeedback: { blockReason: "SAFETY" },
candidates: [
{
index: 0,
finishReason: "IMAGE_SAFETY",
finishMessage: "The generated image was blocked by safety filters.",
safetyRatings: [{ category: "HARM_CATEGORY_DANGEROUS_CONTENT", blocked: true }],
citationMetadata: undefined,
groundingMetadata: undefined,
parts: [{ type: "text", text: "blocked", thought: false, thoughtSignature: undefined }],
},
],
},
})
}),
),
Effect.provide(
ImageClient.layer.pipe(
Layer.provide(
dynamicResponse((input) =>
Effect.succeed(
input.respond(
JSON.stringify({
candidates: [
{
content: { parts: [{ text: "blocked", thought: false }] },
finishReason: "IMAGE_SAFETY",
finishMessage: "The generated image was blocked by safety filters.",
safetyRatings: [{ category: "HARM_CATEGORY_DANGEROUS_CONTENT", blocked: true }],
},
],
promptFeedback: { blockReason: "SAFETY" },
}),
{ headers: { "content-type": "application/json" } },
),
),
),
),
),
),
),
)
})