chore(tests): fix tests

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

@@ -0,0 +1,25 @@
+import { WriteStream } from '../../../types'
+import { writeStream } from '../writeStream'
+import 'jest-extended'
+
+describe('writeStream', () => {
+  const stream: WriteStream = {
+    write: jest.fn(),
+    path: 'test'
+  }
+
+  it('should resolve when the stream is written successfully', async () => {
+    expect(writeStream(stream, 'test')).toResolve()
+
+    expect(stream.write).toHaveBeenCalledWith('test\n', expect.anything())
+  })
+
+  it('should reject when the write errors out', async () => {
+    jest
+      .spyOn(stream, 'write')
+      .mockImplementation((_, callback) => callback(new Error('Test Error')))
+    const error = await writeStream(stream, 'test').catch((e) => e)
+
+    expect(error.message).toEqual('Test Error')
+  })
+})