fix(runtime-fallback): per-model cooldown and stricter retry patterns

This commit is contained in:
youming.tang
2026-02-04 15:25:25 +09:00
committed by YeonGyu-Kim
parent 1f4820dd87
commit 183b3ace5c
4 changed files with 75 additions and 51 deletions
+48 -29
View File
@@ -1,7 +1,8 @@
import { describe, expect, test, beforeEach, afterEach, spyOn } from "bun:test"
import { createRuntimeFallbackHook, type RuntimeFallbackHook } from "./index"
import type { RuntimeFallbackConfig } from "../../config"
import type { RuntimeFallbackConfig, OhMyOpenCodeConfig } from "../../config"
import * as sharedModule from "../../shared"
import { SessionCategoryRegistry } from "../../shared/session-category-registry"
describe("runtime-fallback", () => {
let logCalls: Array<{ msg: string; data?: unknown }>
@@ -11,12 +12,14 @@ describe("runtime-fallback", () => {
beforeEach(() => {
logCalls = []
toastCalls = []
SessionCategoryRegistry.clear()
logSpy = spyOn(sharedModule, "log").mockImplementation((msg: string, data?: unknown) => {
logCalls.push({ msg, data })
})
})
afterEach(() => {
SessionCategoryRegistry.clear()
logSpy?.mockRestore()
})
@@ -48,6 +51,16 @@ describe("runtime-fallback", () => {
}
}
function createMockPluginConfigWithCategoryFallback(fallbackModels: string[]): OhMyOpenCodeConfig {
return {
categories: {
test: {
fallback_models: fallbackModels,
},
},
}
}
describe("session.error handling", () => {
test("should detect retryable error with status code 429", async () => {
const hook = createRuntimeFallbackHook(createMockPluginInput(), { config: createMockConfig() })
@@ -448,11 +461,15 @@ describe("runtime-fallback", () => {
})
describe("model switching via chat.message", () => {
test("should set pending fallback model after error", async () => {
const hook = createRuntimeFallbackHook(createMockPluginInput(), { config: createMockConfig() })
test("should apply fallback model on next chat.message after error", async () => {
const hook = createRuntimeFallbackHook(createMockPluginInput(), {
config: createMockConfig({ notify_on_fallback: false }),
pluginConfig: createMockPluginConfigWithCategoryFallback(["openai/gpt-5.2", "google/gemini-3-pro"]),
})
const sessionID = "test-session-switch"
SessionCategoryRegistry.register(sessionID, "test")
//#given - session with fallback models configured
//#given
await hook.event({
event: {
type: "session.created",
@@ -460,25 +477,30 @@ describe("runtime-fallback", () => {
},
})
//#when - retryable error occurs
//#when
await hook.event({
event: {
type: "session.error",
properties: {
sessionID,
error: { statusCode: 429, message: "Rate limit" },
},
properties: { sessionID, error: { statusCode: 429, message: "Rate limit" } },
},
})
//#then - fallback preparation should be logged
const fallbackPrepLog = logCalls.find((c) => c.msg.includes("Preparing fallback") || c.msg.includes("fallback"))
expect(fallbackPrepLog !== undefined || logCalls.some(c => c.msg.includes("No fallback"))).toBe(true)
const output = { message: {}, parts: [] }
await hook["chat.message"]?.(
{ sessionID, model: { providerID: "anthropic", modelID: "claude-opus-4-5" } },
output
)
expect(output.message.model).toEqual({ providerID: "openai", modelID: "gpt-5.2" })
})
test("should notify when fallback occurs", async () => {
const hook = createRuntimeFallbackHook(createMockPluginInput(), { config: createMockConfig() })
const hook = createRuntimeFallbackHook(createMockPluginInput(), {
config: createMockConfig({ notify_on_fallback: true }),
pluginConfig: createMockPluginConfigWithCategoryFallback(["openai/gpt-5.2"]),
})
const sessionID = "test-session-notify"
SessionCategoryRegistry.register(sessionID, "test")
await hook.event({
event: {
@@ -490,13 +512,12 @@ describe("runtime-fallback", () => {
await hook.event({
event: {
type: "session.error",
properties: { sessionID, error: { statusCode: 429 }, agent: "sisyphus" },
properties: { sessionID, error: { statusCode: 429 } },
},
})
//#then - should show notification toast or prepare fallback
const notifyLog = logCalls.find((c) => c.msg.includes("Preparing fallback") || c.msg.includes("No fallback models"))
expect(notifyLog).toBeDefined()
expect(toastCalls.length).toBe(1)
expect(toastCalls[0]?.message.includes("gpt-5.2")).toBe(true)
})
})
@@ -553,9 +574,14 @@ describe("runtime-fallback", () => {
describe("cooldown mechanism", () => {
test("should respect cooldown period before retrying failed model", async () => {
const hook = createRuntimeFallbackHook(createMockPluginInput(), {
config: createMockConfig({ cooldown_seconds: 1 }),
config: createMockConfig({ cooldown_seconds: 60, notify_on_fallback: false }),
pluginConfig: createMockPluginConfigWithCategoryFallback([
"openai/gpt-5.2",
"anthropic/claude-opus-4-5",
]),
})
const sessionID = "test-session-cooldown"
SessionCategoryRegistry.register(sessionID, "test")
await hook.event({
event: {
@@ -564,7 +590,7 @@ describe("runtime-fallback", () => {
},
})
//#when - first error occurs
//#when - first error occurs, switches to openai
await hook.event({
event: {
type: "session.error",
@@ -572,11 +598,7 @@ describe("runtime-fallback", () => {
},
})
const firstFallback = logCalls.find((c) => c.msg.includes("Preparing fallback") || c.msg.includes("No fallback models"))
expect(firstFallback).toBeDefined()
//#when - second error occurs immediately (within cooldown)
logCalls = []
//#when - second error occurs immediately; tries to switch back to original model but should be in cooldown
await hook.event({
event: {
type: "session.error",
@@ -584,11 +606,8 @@ describe("runtime-fallback", () => {
},
})
//#then - should skip due to cooldown (no new logs or cooldown message)
const hasCooldownSkip = logCalls.some((c) =>
c.msg.includes("cooldown") || c.msg.includes("Skipping")
)
expect(hasCooldownSkip || logCalls.length <= 2).toBe(true)
const cooldownSkipLog = logCalls.find((c) => c.msg.includes("Skipping fallback model in cooldown"))
expect(cooldownSkipLog).toBeDefined()
})
})