import { describe, expect, it } from "vitest";
import { getModel } from "../src/models.js";
import { complete, stream } from "../src/stream.js";
import type { Api, Context, Model, StreamOptions } from "../src/types.js";
import { getKimiCodingTestModel } from "./kimi-test-model.js";
type StreamOptionsWithExtras = StreamOptions & Record<string, unknown>;
import { hasAzureOpenAICredentials, resolveAzureDeploymentName } from "./azure-utils.js";
import { hasBedrockCredentials } from "./bedrock-utils.js";
import { resolveApiKey } from "./oauth.js";
const [openaiCodexToken] = await Promise.all([resolveApiKey("openai-codex")]);
async function testAbortSignal<TApi extends Api>(llm: Model<TApi>, options: StreamOptionsWithExtras = {}) {
const context: Context = {
messages: [
{
role: "user",
content: "What is 15 + 27? Think step by step. Then list 50 first names.",
timestamp: Date.now(),
},
],
systemPrompt: "You are a helpful assistant.",
};
let abortFired = false;
let text = "";
const controller = new AbortController();
const response = await stream(llm, context, { ...options, signal: controller.signal });
for await (const event of response) {
if (abortFired) return;
if (event.type === "text_delta" || event.type === "thinking_delta") {
text += event.delta;
}
if (text.length >= 50) {
controller.abort();
abortFired = true;
}
}
const msg = await response.result();
expect(msg.stopReason).toBe("aborted");
expect(msg.content.length).toBeGreaterThan(0);
context.messages.push(msg);
context.messages.push({
role: "user",
content: "Please continue, but only generate 5 names.",
timestamp: Date.now(),
});
const followUp = await complete(llm, context, options);
expect(followUp.stopReason).toBe("stop");
expect(followUp.content.length).toBeGreaterThan(0);
}
async function testImmediateAbort<TApi extends Api>(llm: Model<TApi>, options: StreamOptionsWithExtras = {}) {
const controller = new AbortController();
controller.abort();
const context: Context = {
messages: [{ role: "user", content: "Hello", timestamp: Date.now() }],
};
const response = await complete(llm, context, { ...options, signal: controller.signal });
expect(response.stopReason).toBe("aborted");
}
async function testAbortThenNewMessage<TApi extends Api>(llm: Model<TApi>, options: StreamOptionsWithExtras = {}) {
const controller = new AbortController();
controller.abort();
const context: Context = {
messages: [{ role: "user", content: "Hello, how are you?", timestamp: Date.now() }],
};
const abortedResponse = await complete(llm, context, { ...options, signal: controller.signal });
expect(abortedResponse.stopReason).toBe("aborted");
expect(abortedResponse.content.length).toBe(0);
context.messages.push(abortedResponse);
context.messages.push({
role: "user",
content: "What is 2 + 2?",
timestamp: Date.now(),
});
const followUp = await complete(llm, context, options);
expect(followUp.stopReason).toBe("stop");
expect(followUp.content.length).toBeGreaterThan(0);
}
describe("AI Providers Abort Tests", () => {
describe.skipIf(!process.env.GEMINI_API_KEY)("Google Provider Abort", () => {
const llm = getModel("google", "gemini-2.5-flash");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm, { thinking: { enabled: true } });
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm, { thinking: { enabled: true } });
});
});
describe.skipIf(!process.env.OPENAI_API_KEY)("OpenAI Completions Provider Abort", () => {
const { compat: _compat, ...baseModel } = getModel("openai", "gpt-4o-mini")!;
void _compat;
const llm: Model<"openai-completions"> = {
...baseModel,
api: "openai-completions",
};
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe.skipIf(!process.env.OPENAI_API_KEY)("OpenAI Responses Provider Abort", () => {
const llm = getModel("openai", "gpt-5-mini");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe.skipIf(!hasAzureOpenAICredentials())("Azure OpenAI Responses Provider Abort", () => {
const llm = getModel("azure-openai-responses", "gpt-4o-mini");
const azureDeploymentName = resolveAzureDeploymentName(llm.id);
const azureOptions = azureDeploymentName ? { azureDeploymentName } : {};
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm, azureOptions);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm, azureOptions);
});
});
describe.skipIf(!process.env.ANTHROPIC_OAUTH_TOKEN)("Anthropic Provider Abort", () => {
const llm = getModel("anthropic", "claude-opus-4-6");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm, { thinkingEnabled: true, thinkingBudgetTokens: 2048 });
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm, { thinkingEnabled: true, thinkingBudgetTokens: 2048 });
});
});
describe.skipIf(!process.env.MISTRAL_API_KEY)("Mistral Provider Abort", () => {
const llm = getModel("mistral", "devstral-medium-latest");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe.skipIf(!process.env.MINIMAX_API_KEY)("MiniMax Provider Abort", () => {
const llm = getModel("minimax", "MiniMax-M2.7");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe.skipIf(!process.env.XIAOMI_API_KEY)("Xiaomi MiMo (API billing) Provider Abort", () => {
const llm = getModel("xiaomi", "mimo-v2.5-pro");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe.skipIf(!process.env.XIAOMI_TOKEN_PLAN_CN_API_KEY)("Xiaomi MiMo Token Plan (CN) Provider Abort", () => {
const llm = getModel("xiaomi-token-plan-cn", "mimo-v2.5-pro");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe.skipIf(!process.env.XIAOMI_TOKEN_PLAN_AMS_API_KEY)("Xiaomi MiMo Token Plan (AMS) Provider Abort", () => {
const llm = getModel("xiaomi-token-plan-ams", "mimo-v2.5-pro");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe.skipIf(!process.env.XIAOMI_TOKEN_PLAN_SGP_API_KEY)("Xiaomi MiMo Token Plan (SGP) Provider Abort", () => {
const llm = getModel("xiaomi-token-plan-sgp", "mimo-v2.5-pro");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe.skipIf(!process.env.KIMI_API_KEY)("Kimi For Coding Provider Abort", () => {
const llm = getKimiCodingTestModel();
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe.skipIf(!process.env.AI_GATEWAY_API_KEY)("Vercel AI Gateway Provider Abort", () => {
const llm = getModel("vercel-ai-gateway", "google/gemini-2.5-flash");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm);
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
});
describe("OpenAI Codex Provider Abort", () => {
it.skipIf(!openaiCodexToken)("should abort mid-stream", { retry: 3 }, async () => {
const llm = getModel("openai-codex", "gpt-5.2-codex");
await testAbortSignal(llm, { apiKey: openaiCodexToken });
});
it.skipIf(!openaiCodexToken)("should handle immediate abort", { retry: 3 }, async () => {
const llm = getModel("openai-codex", "gpt-5.2-codex");
await testImmediateAbort(llm, { apiKey: openaiCodexToken });
});
});
describe.skipIf(!hasBedrockCredentials())("Amazon Bedrock Provider Abort", () => {
const llm = getModel("amazon-bedrock", "global.anthropic.claude-sonnet-4-5-20250929-v1:0");
it("should abort mid-stream", { retry: 3 }, async () => {
await testAbortSignal(llm, { reasoning: "medium" });
});
it("should handle immediate abort", { retry: 3 }, async () => {
await testImmediateAbort(llm);
});
it("should handle abort then new message", { retry: 3 }, async () => {
await testAbortThenNewMessage(llm);
});
});
});