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.
95 lines
2.5 KiB
TypeScript
95 lines
2.5 KiB
TypeScript
import { describe, it } from "vitest";
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import fc from "fast-check";
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import { OpenCodeBackend } from "../../src/backends/opencode-backend.js";
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import type { BackendAdapterConfig } from "../../src/backends/types.js";
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// Feature: multi-cli-backend, Property 4: OpenCode backend required flags
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// **Validates: Requirements 5.2, 5.3, 5.5**
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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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/**
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* Arbitrary for model strings (provider/model format).
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*/
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const modelString = fc.stringMatching(/^[a-z]{1,20}\/[a-z0-9-]{1,40}$/);
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function createBackend(model?: string): OpenCodeBackend {
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const config: BackendAdapterConfig = {
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cliPath: "opencode",
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workingDir: "/tmp",
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queryTimeoutMs: 60000,
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allowedTools: [],
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maxTurns: 25,
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model,
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};
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return new OpenCodeBackend(config);
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}
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describe("Property 4: OpenCode backend required flags", () => {
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it("generated args always start with the run subcommand", () => {
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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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return args[0] === "run";
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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 --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 formatIndex = args.indexOf("--format");
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return formatIndex !== -1 && args[formatIndex + 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 contain --model when a model is configured", () => {
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fc.assert(
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fc.property(
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nonEmptyString,
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modelString,
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(prompt, model) => {
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const backend = createBackend(model);
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const args = backend.buildArgs(prompt);
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const modelIndex = args.indexOf("--model");
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return modelIndex !== -1 && args[modelIndex + 1] === model;
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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 do not contain --model when no model is configured", () => {
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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(undefined);
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const args = backend.buildArgs(prompt);
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return !args.includes("--model");
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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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