tanmay11k
453389f55c
Implement BackendAdapter interface with four CLI backends: - ClaudeCodeBackend (extracted from AgentRuntime) - CodexBackend (OpenAI Codex CLI) - GeminiBackend (Google Gemini CLI) - OpenCodeBackend (OpenCode CLI) Add BackendRegistry for resolution/creation via AGENT_BACKEND env var. Refactor AgentRuntime to delegate to BackendAdapter instead of hardcoding Claude CLI. Update GatewayConfig with new env vars (AGENT_BACKEND, BACKEND_CLI_PATH, BACKEND_MODEL, BACKEND_MAX_TURNS). Includes 10 property-based test files and unit tests for edge cases.
75 lines
2.1 KiB
TypeScript
75 lines
2.1 KiB
TypeScript
import { describe, it } from "vitest";
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import fc from "fast-check";
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import { GeminiBackend } from "../../src/backends/gemini-backend.js";
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import type { BackendAdapterConfig } from "../../src/backends/types.js";
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// Feature: multi-cli-backend, Property 3: Gemini backend required flags
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// **Validates: Requirements 4.2, 4.3, 4.4**
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/**
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* Arbitrary for non-empty strings that won't break CLI arg parsing.
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*/
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const nonEmptyString = fc.string({ minLength: 1, maxLength: 200 });
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function createBackend(): GeminiBackend {
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const config: BackendAdapterConfig = {
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cliPath: "gemini",
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workingDir: "/workspace",
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queryTimeoutMs: 60000,
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allowedTools: [],
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maxTurns: 25,
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};
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return new GeminiBackend(config);
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}
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describe("Property 3: Gemini backend required flags", () => {
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it("generated args always contain the prompt as a positional argument", () => {
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fc.assert(
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fc.property(
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nonEmptyString,
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(prompt) => {
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const backend = createBackend();
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const args = backend.buildArgs(prompt);
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// The prompt (or a string containing the prompt) must appear
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// as a positional arg (not preceded by a flag)
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return args.some((arg) => arg.includes(prompt));
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},
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),
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{ numRuns: 100 },
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);
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});
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it("generated args always contain --output-format json", () => {
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fc.assert(
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fc.property(
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nonEmptyString,
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(prompt) => {
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const backend = createBackend();
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const args = backend.buildArgs(prompt);
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const idx = args.indexOf("--output-format");
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return idx !== -1 && args[idx + 1] === "json";
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},
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),
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{ numRuns: 100 },
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);
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});
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it("generated args always contain --approval-mode yolo", () => {
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fc.assert(
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fc.property(
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nonEmptyString,
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(prompt) => {
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const backend = createBackend();
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const args = backend.buildArgs(prompt);
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const idx = args.indexOf("--approval-mode");
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return idx !== -1 && args[idx + 1] === "yolo";
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},
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),
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{ numRuns: 100 },
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);
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});
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});
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