chore: fix unit tests

package.json

@@ -42,6 +42,7 @@
     "@types/chai": "^4.2.15",
     "@types/chai-as-promised": "^7.1.3",
     "@types/cross-spawn": "^6.0.2",
+    "@types/estree": "^0.0.47",
     "@types/fs-extra": "^9.0.9",
     "@types/mocha": "^8.2.2",
     "@types/node": "^14.14.37",

packages/koishi-core/tests/context.spec.ts

@@ -171,7 +171,7 @@ describe('Context API', () => {
       expect(inspect(app)).to.equal('Context <root>')
 
       app.plugin(function foo(ctx) {
-        expect(inspect(ctx)).to.equal('Context <unknown>')
+        expect(inspect(ctx)).to.equal('Context <anonymous>')
       })
 
       app.plugin({

packages/plugin-teach/tests/environment.ts

@@ -1,4 +1,4 @@
-import { Database, Context, Assets } from 'koishi-core'
+import { Database, Context } from 'koishi-core'
 import { defineProperty, Observed, clone, intersection } from 'koishi-utils'
 import { Dialogue, DialogueTest, equal, Config, apply } from 'koishi-plugin-teach'
 import { App } from 'koishi-test-utils'
@@ -106,27 +106,13 @@ function getProduct({ startTime, endTime }: Dialogue, time: number) {
   return (startTime - time) * (time - endTime) * (endTime - startTime)
 }
 
-class MockAssets implements Assets {
-  types = ['image'] as const
-
-  async upload(url: string) {
-    return url
-  }
-
-  async stats() {
-    return {}
-  }
-}
-
 export default function (config: Config) {
   const app = new App({
     userCacheAge: Number.EPSILON,
     nickname: ['koishi', 'satori'],
     mockDatabase: true,
   })
 
-  app.assets = new MockAssets()
-
   const u2id = '200', u3id = '300', u4id = '400'
   const g1id = '100', g2id = '200'
   const u2 = app.session(u2id)

packages/plugin-teach/tests/misc.spec.ts

@@ -1,5 +1,5 @@
 import { App } from 'koishi-test-utils'
-import { Logger, Time } from 'koishi-utils'
+import { Assets, Logger, Time } from 'koishi-core'
 import createEnvironment from './environment'
 import { install } from '@sinonjs/fake-timers'
 import * as teach from 'koishi-plugin-teach'
@@ -43,7 +43,13 @@ describe('Teach Plugin - Miscellaneous', () => {
   describe('Assets', () => {
     const logger = new Logger('teach')
     const { app, u3g1 } = createEnvironment({})
-    const upload = jest.spyOn(app.assets, 'upload')
+    const upload = jest.fn(async (url: string) => url)
+
+    app.assets = new class MockAssets implements Assets {
+      types = ['image'] as const
+      stats = async () => ({})
+      upload = upload
+    }()
 
     it('upload succeed', async () => {
       upload.mockResolvedValue('https://127.0.0.1/image/baz')