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import * as assert from 'assert';import { hooks, middleware, HookContext, NextFunction } from '../src';
interface HookableObject {  test: string;  sayHi (name: string): Promise<string>;  addOne (number: number): Promise<number>;}
describe('objectHooks', () => {  let obj: HookableObject;
  beforeEach(() => {    obj = {      test: 'me',
      async sayHi (name: string) {        return `Hi ${name}`;      },
      async addOne (number: number) {        return number + 1;      }    };  });
  it('hooks object with hook methods, sets method name', async () => {    const hookedObj = hooks(obj, {      sayHi: middleware([async (ctx: HookContext, next: NextFunction) => {        assert.strictEqual(ctx.method, 'sayHi');        assert.deepEqual(ctx, new (obj.sayHi as any).Context({          arguments: [ 'David' ],          method: 'sayHi',          self: obj        }));
        await next();
        ctx.result += '?';      }]),      addOne: middleware([async (ctx: HookContext, next: NextFunction) => {        ctx.arguments[0] += 1;
        await next();      }])    });
    assert.strictEqual(obj, hookedObj);    assert.strictEqual(await hookedObj.sayHi('David'), 'Hi David?');    assert.strictEqual(await hookedObj.addOne(1), 3);  });
  it('hooks object and allows to customize context for method', async () => {    const hookedObj = hooks(obj, {      sayHi: middleware([async (ctx: HookContext, next: NextFunction) => {        assert.deepStrictEqual(ctx, new (obj.sayHi as any).Context({          arguments: ['David'],          method: 'sayHi',          name: 'David',          self: obj        }));
        ctx.name = 'Dave';
        await next();
        ctx.result += '?';      }]).params('name'),
      addOne: middleware([async (ctx: HookContext, next: NextFunction) => {        ctx.arguments[0] += 1;
        await next();      }])    });
    assert.strictEqual(obj, hookedObj);    assert.strictEqual(await hookedObj.sayHi('David'), 'Hi Dave?');    assert.strictEqual(await hookedObj.addOne(1), 3);  });
  it('hooking multiple times works properly', async () => {    hooks(obj, {      sayHi: middleware([async (ctx: HookContext, next: NextFunction) => {        await next();
        ctx.result += '?';      }])    });
    hooks(obj, {      sayHi: middleware([async (ctx: HookContext, next: NextFunction) => {        await next();
        ctx.result += '!';      }])    });
    assert.strictEqual(await obj.sayHi('David'), 'Hi David!?');  });
  it('throws an error when hooking invalid method', async () => {    try {      hooks(obj, {        test: middleware([async (_ctx, next) => {          await next();        }])      });      assert.fail('Should never get here');    } catch (error) {      assert.strictEqual(error.message, `Can not apply hooks. 'test' is not a function`);    }  });
  it('works with object level hooks', async () => {    hooks(obj, [      async (ctx: HookContext, next: NextFunction) => {        await next();
        ctx.result += '!';      }    ]);
    hooks(obj, {      sayHi: middleware([async (ctx: HookContext, next: NextFunction) => {        await next();
        ctx.result += '?';      }])    });
    assert.strictEqual(await obj.sayHi('Dave'), 'Hi Dave?!');  });});