Edit create_course test to reflect current functionality

Author: VehvilainenPooki

__tests__/jest/slashCommands/slash_create_course.test.js

@@ -20,6 +20,8 @@ findCourseFromDb
 createCourseToDatabase.mockImplementation(() => {return { name: "nickname", id:  Math.floor(Math.random() * 10) + 5 }; });
 
 const { defaultTeacherInteraction, defaultStudentInteraction } = require("../../mocks/mockInteraction");
+
+beforeEach(() => {
 defaultTeacherInteraction.options = {
   getString: jest.fn((name) => {
     const names = {
@@ -40,7 +42,7 @@ defaultStudentInteraction.options = {
     return names[name];
   }),
 };
-
+});
 afterEach(() => {
   jest.clearAllMocks();
 });
@@ -65,19 +67,39 @@ describe("slash create command", () => {
   });
 
   test("course code must be unique when nickname not given", async () => {
-    const client = defaultStudentInteraction.client;
+defaultTeacherInteraction.options = {
+      getString: jest.fn((name) => {
+        const names = {
+          coursecode: "TKT-100",
+          full_name: "Long course name",
+          nick_name: undefined,
+        };
+        return names[name];
+      }),
+    };
+    const client = defaultTeacherInteraction.client;
     const response = "Course code must be unique.";
-    await execute(defaultStudentInteraction, client, models);
+    await execute(defaultTeacherInteraction, client, models);
     expect(findCourseFromDbWithFullName).toHaveBeenCalledTimes(1);
     expect(sendErrorEphemeral).toHaveBeenCalledTimes(1);
-    expect(sendErrorEphemeral).toHaveBeenCalledWith(defaultStudentInteraction, response);
+    expect(sendErrorEphemeral).toHaveBeenCalledWith(defaultTeacherInteraction, response);
   });
 
   test("create course name without nick", async () => {
+defaultTeacherInteraction.options = {
+      getString: jest.fn((name) => {
+        const names = {
+          coursecode: "TKT-100",
+          full_name: "Long course name",
+          nick_name: undefined,
+        };
+        return names[name];
+      }),
+    };
     const courseCode = "TKT-100";
     const fullName = "Long course name";
-    const client = defaultStudentInteraction.client;
-    await execute(defaultStudentInteraction, client, models);
+    const client = defaultTeacherInteraction.client;
+    await execute(defaultTeacherInteraction, client, models);
     expect(createCourseToDatabase).toHaveBeenCalledTimes(1);
     expect(createCourseToDatabase).toHaveBeenCalledWith(courseCode, fullName, courseCode.toLowerCase(), models.Course);
   });