import { describe, it, expect, beforeEach, afterEach, vi } from "vitest";
// Mock the config module to test validation logic directly
describe("Config", () => {
const originalEnv = { ...process.env };
beforeEach(() => {
// Clear module cache for fresh imports
vi.resetModules();
// Reset env to a clean state
process.env = { ...originalEnv };
// Clear any NEW_RELIC env vars from parent process
delete process.env.NEW_RELIC_API_KEY;
delete process.env.NEW_RELIC_ACCOUNT_ID;
delete process.env.NEW_RELIC_REGION;
});
afterEach(() => {
process.env = originalEnv;
});
describe("loadConfig", () => {
it("should load config from environment variables", async () => {
process.env.NEW_RELIC_API_KEY = "test-api-key";
process.env.NEW_RELIC_ACCOUNT_ID = "12345";
process.env.NEW_RELIC_REGION = "US";
const { loadConfig } = await import("../../src/config.js");
const config = loadConfig();
expect(config.newRelic.apiKey).toBe("test-api-key");
expect(config.newRelic.accountId).toBe("12345");
expect(config.newRelic.region).toBe("US");
});
it("should default region to US if not specified", async () => {
process.env.NEW_RELIC_API_KEY = "test-api-key";
process.env.NEW_RELIC_ACCOUNT_ID = "12345";
const { loadConfig } = await import("../../src/config.js");
const config = loadConfig();
expect(config.newRelic.region).toBe("US");
});
it("should throw error if API key is missing", async () => {
process.env.NEW_RELIC_ACCOUNT_ID = "12345";
const { loadConfig } = await import("../../src/config.js");
expect(() => loadConfig()).toThrow("NEW_RELIC_API_KEY");
});
it("should throw error if account ID is missing", async () => {
process.env.NEW_RELIC_API_KEY = "test-api-key";
const { loadConfig } = await import("../../src/config.js");
expect(() => loadConfig()).toThrow("NEW_RELIC_ACCOUNT_ID");
});
it("should accept EU region", async () => {
process.env.NEW_RELIC_API_KEY = "test-api-key";
process.env.NEW_RELIC_ACCOUNT_ID = "12345";
process.env.NEW_RELIC_REGION = "EU";
const { loadConfig } = await import("../../src/config.js");
const config = loadConfig();
expect(config.newRelic.region).toBe("EU");
});
it("should normalize lowercase region to uppercase", async () => {
process.env.NEW_RELIC_API_KEY = "test-api-key";
process.env.NEW_RELIC_ACCOUNT_ID = "12345";
process.env.NEW_RELIC_REGION = "eu";
const { loadConfig } = await import("../../src/config.js");
const config = loadConfig();
expect(config.newRelic.region).toBe("EU");
});
it("should throw error for invalid region", async () => {
process.env.NEW_RELIC_API_KEY = "test-api-key";
process.env.NEW_RELIC_ACCOUNT_ID = "12345";
process.env.NEW_RELIC_REGION = "INVALID";
const { loadConfig } = await import("../../src/config.js");
expect(() => loadConfig()).toThrow("Invalid NEW_RELIC_REGION");
});
it("should use default server name if not specified", async () => {
process.env.NEW_RELIC_API_KEY = "test-api-key";
process.env.NEW_RELIC_ACCOUNT_ID = "12345";
const { loadConfig } = await import("../../src/config.js");
const config = loadConfig();
expect(config.server.name).toBe("newrelic-mcp-server");
});
});
});
