fix: jest tests RequestClient.spec.ts

src/api/viya/spec/saveLog.spec.ts

@@ -69,5 +69,5 @@ const setupMocks = () => {
     .mockImplementation(() => Promise.resolve('Test Log'))
   jest
     .spyOn(writeStreamModule, 'writeStream')
-    .mockImplementation(() => Promise.resolve())
+    .mockImplementation(() => Promise.resolve(true))
 }

src/api/viya/spec/writeStream.spec.ts

@@ -10,12 +10,22 @@ import {
 describe('writeStream', () => {
   const filename = 'test.txt'
   const content = 'test'
+
   let stream: WriteStream
 
   beforeAll(async () => {
     stream = await createWriteStream(filename)
   })
 
+  beforeEach(async () => {
+    await deleteFile(filename).catch(() => {}) // Ignore errors if the file doesn't exist
+    stream = await createWriteStream(filename)
+  })
+
+  afterEach(async () => {
+    await deleteFile(filename).catch(() => {}) // Ensure cleanup after test
+  })
+
   it('should resolve when the stream is written successfully', async () => {
     await expect(writeStream(stream, content)).toResolve()
     await expect(fileExists(filename)).resolves.toEqual(true)
@@ -25,11 +35,30 @@ describe('writeStream', () => {
   })
 
   it('should reject when the write errors out', async () => {
+    // Mock implementation of the write method
     jest
       .spyOn(stream, 'write')
-      .mockImplementation((_, callback) => callback(new Error('Test Error')))
+      .mockImplementation(
+        (
+          chunk: any,
+          encodingOrCb?:
+            | BufferEncoding
+            | ((error: Error | null | undefined) => void),
+          cb?: (error: Error | null | undefined) => void
+        ) => {
+          const callback =
+            typeof encodingOrCb === 'function' ? encodingOrCb : cb
+          if (callback) {
+            callback(new Error('Test Error')) // Simulate an error
+          }
+          return true // Simulate that the write operation was called
+        }
+      )
+
+    // Call the writeStream function and catch the error
     const error = await writeStream(stream, content).catch((e: any) => e)
 
+    // Assert that the error is correctly handled
     expect(error.message).toEqual('Test Error')
   })
 })

src/api/viya/writeStream.ts

@@ -3,9 +3,14 @@ import { WriteStream } from '../../types'
 export const writeStream = async (
   stream: WriteStream,
   content: string
-): Promise<void> =>
-  stream.write(content + '\n', (e: any) => {
-    if (e) return Promise.reject(e)
-
-    return Promise.resolve()
+): Promise<boolean> => {
+  return new Promise((resolve, reject) => {
+    stream.write(content + '\n', (err: Error | null | undefined) => {
+      if (err) {
+        reject(err) // Reject on write error
+      } else {
+        resolve(true) // Resolve on successful write
+      }
+    })
   })
+}

src/request/RequestClient.ts

@@ -5,7 +5,6 @@ import {
   AxiosRequestHeaders,
   AxiosResponse
 } from 'axios'
-import axios from 'axios'
 import * as https from 'https'
 import { CsrfToken } from '..'
 import { isAuthorizeFormRequired, isLogInRequired } from '../auth'

src/test/RequestClient.spec.ts

@@ -24,9 +24,17 @@ const axiosActual = jest.requireActual('axios')
 jest
   .spyOn(axiosModules, 'createAxiosInstance')
   .mockImplementation((baseURL: string, httpsAgent?: https.Agent) =>
-    axiosActual.create({ baseURL, httpsAgent })
+    axiosActual.create({ baseURL, httpsAgent, withCredentials: true })
   )
 
+jest.mock('util', () => {
+  const actualUtil = jest.requireActual('util')
+  return {
+    ...actualUtil,
+    inspect: jest.fn(actualUtil.inspect)
+  }
+})
+
 const PORT = 8000
 const SERVER_URL = `https://localhost:${PORT}/`
 
@@ -432,15 +440,18 @@ ${resHeaders[0]}: ${resHeaders[1]}${
   })
 
   describe('prettifyString', () => {
+    const inspectMock = UtilsModule.inspect as unknown as jest.Mock
+
+    beforeEach(() => {
+      // Reset the mock before each test to ensure a clean slate
+      inspectMock.mockClear()
+    })
+
     it(`should call inspect without colors when verbose mode is set to 'bleached'`, () => {
       const requestClient = new RequestClient('')
-      let verbose: VerboseMode = 'bleached'
-      requestClient.setVerboseMode(verbose)
-
-      jest.spyOn(UtilsModule, 'inspect')
+      requestClient.setVerboseMode('bleached')
 
       const testStr = JSON.stringify({ test: 'test' })
-
       requestClient['prettifyString'](testStr)
 
       expect(UtilsModule.inspect).toHaveBeenCalledWith(testStr, {
@@ -448,15 +459,11 @@ ${resHeaders[0]}: ${resHeaders[1]}${
       })
     })
 
-    it(`should call inspect with colors when verbose mode is set to 'true'`, () => {
+    it(`should call inspect with colors when verbose mode is set to true`, () => {
       const requestClient = new RequestClient('')
-      let verbose: VerboseMode = true
-      requestClient.setVerboseMode(verbose)
-
-      jest.spyOn(UtilsModule, 'inspect')
+      requestClient.setVerboseMode(true)
 
       const testStr = JSON.stringify({ test: 'test' })
-
       requestClient['prettifyString'](testStr)
 
       expect(UtilsModule.inspect).toHaveBeenCalledWith(testStr, {

src/test/SAS_server_app.ts

@@ -1,7 +1,15 @@
 import express = require('express')
+import cors from 'cors'
 
 export const app = express()
 
+app.use(
+  cors({
+    origin: 'http://localhost', // Allow requests only from this origin
+    credentials: true // Allow credentials (cookies, auth headers, etc.)
+  })
+)
+
 export const mockedAuthResponse = {
   access_token: 'access_token',
   token_type: 'bearer',
@@ -12,11 +20,11 @@ export const mockedAuthResponse = {
   jti: 'jti'
 }
 
-app.get('/', function (req: any, res: any) {
+app.get('/', (req: any, res: any) => {
   res.send('Hello World')
 })
 
-app.post('/SASLogon/oauth/token', function (req: any, res: any) {
+app.post('/SASLogon/oauth/token', (req: any, res: any) => {
   let valid = true
 
   // capture the encoded form data

src/types/WriteStream.ts

@@ -1,4 +1,10 @@
-export interface WriteStream {
-  write: (content: string, callback: (err?: Error) => any) => void
-  path: string
+import { WriteStream as FsWriteStream } from 'fs'
+
+export interface WriteStream extends FsWriteStream {
+  write(
+    chunk: any,
+    encoding?: BufferEncoding | ((error: Error | null | undefined) => void),
+    cb?: (error: Error | null | undefined) => void
+  ): boolean
+  path: string | Buffer
 }