klz-cables.com/lib/env.test.ts

import { describe, it, expect } from 'vitest';
import { envSchema } from './env';

describe('envSchema', () => {
  it('should allow missing MAIL_HOST in development', () => {
    const result = envSchema.safeParse({
      NEXT_PUBLIC_BASE_URL: 'http://localhost:3000',
      TARGET: 'development',
    });
    expect(result.success).toBe(true);
  });

  it('should require MAIL_HOST in production', () => {
    const result = envSchema.safeParse({
      NEXT_PUBLIC_BASE_URL: 'https://example.com',
      TARGET: 'production',
    });
    expect(result.success).toBe(false);
    if (!result.success) {
      expect(result.error.issues[0].message).toBe(
        'MAIL_HOST is required in non-development environments',
      );
    }
  });

  it('should require MAIL_HOST in testing', () => {
    const result = envSchema.safeParse({
      NEXT_PUBLIC_BASE_URL: 'https://testing.example.com',
      TARGET: 'testing',
    });
    expect(result.success).toBe(false);
    if (!result.success) {
      expect(result.error.issues[0].message).toBe(
        'MAIL_HOST is required in non-development environments',
      );
    }
  });

  it('should require MAIL_HOST in staging', () => {
    const result = envSchema.safeParse({
      NEXT_PUBLIC_BASE_URL: 'https://staging.example.com',
      TARGET: 'staging',
    });
    expect(result.success).toBe(false);
    if (!result.success) {
      expect(result.error.issues[0].message).toBe(
        'MAIL_HOST is required in non-development environments',
      );
    }
  });

  it('should pass if MAIL_HOST is provided in production', () => {
    const result = envSchema.safeParse({
      NEXT_PUBLIC_BASE_URL: 'https://example.com',
      TARGET: 'production',
      MAIL_HOST: 'smtp.example.com',
    });
    expect(result.success).toBe(true);
  });

  it('should skip MAIL_HOST requirement if SKIP_RUNTIME_ENV_VALIDATION is true', () => {
    process.env.SKIP_RUNTIME_ENV_VALIDATION = 'true';
    const result = envSchema.safeParse({
      NEXT_PUBLIC_BASE_URL: 'https://example.com',
      TARGET: 'production',
    });
    expect(result.success).toBe(true);
    delete process.env.SKIP_RUNTIME_ENV_VALIDATION;
  });
});