diff --git a/test/putStudentNumberInExistingCustomColumn.test.js b/test/putStudentNumberInExistingCustomColumn.test.js
new file mode 100644
index 0000000..b3f5d33
--- /dev/null
+++ b/test/putStudentNumberInExistingCustomColumn.test.js
@@ -0,0 +1,7 @@
+/* global test, expect, describe, it, jest */
+
+const putStudentNumberInExistingCustomColumn = require('../src/putStudentNumberInExistingCustomColumn')
+
+test('putStudentNumberInExistingCustomColumn function exists', () => {
+  expect(typeof putStudentNumberInExistingCustomColumn).toEqual('function')
+})
diff --git a/test/putStudentNumbersInExistingGradebook.test.js b/test/putStudentNumbersInExistingGradebook.test.js
deleted file mode 100644
index 31fa0e1..0000000
--- a/test/putStudentNumbersInExistingGradebook.test.js
+++ /dev/null
@@ -1,27 +0,0 @@
-/* global test, expect, describe, it, jest */
-
-const putStudentNumbersInExistingGradebook = require('../src/putStudentNumberInExistingGradebook')
-
-test('putStudentNumbersInExistingGradebook function exists', () => {
-  expect(typeof putStudentNumbersInExistingGradebook).toEqual('function')
-})
-
-// describe('putStudentNumbersInExistingGradebook', () => {
-//   it('Expect putStudentNumbersInExistingGradebook called with 2 args', () => {
-//     const putStudentNumberInGradeColumnMock = jest.fn()
-//     const putStudentNumbersInExistingGradebookMock = jest.fn(() => {
-//       putStudentNumberInGradeColumnMock()
-//     })
-
-//     expect(putStudentNumbersInExistingGradebookMock).toBeCalled()
-//     expect(putStudentNumberInGradeColumnMock).toBeCalled()
-//   })
-// })
-
-// work in progress
-test('Expect putStudentNumbersInExistingGradebook called with 2 args', () => {
-  expect.assertions(1)
-  const data = putStudentNumbersInExistingGradebook(2503)
-
-  return expect(data).toBeCalledWith()
-})