Improve test coverage of rbac stuff

Description

Trying to improve coverage. 🥴

Related Issue

#207 (closed)

controller/api/apiUtil_test.go

+package api
+
+import (
+	rbacImpl "code.fbi.h-da.de/danet/gosdn/controller/rbac"
+	"github.com/google/uuid"
+)
+
+// Name of this file requires _test at the end, because of how the availability of varibales is handled in test files of go packages.
+// Does not include actual file tests!
+
+const adminID = "5c248a22-8eb7-48cf-b392-45680a1863a5"
+const userID = "57005d13-7a4d-493d-a02b-50ca51c40197"
+const adminRoleID = "126683ae-5ff2-43ee-92f7-0e2b936f8c77"
+const randomRoleName = "bertram"
+
+var adminRoleMap = map[string]string{pndID: "admin"}
+var userRoleMap = map[string]string{pndID: "user"}
+
+func clearAndCreateAuthTestSetup() error {
+	//clear setup if changed
+	storedUsers, err := userService.GetAll()
+	if err != nil {
+		return err
+	}
+	for _, u := range storedUsers {
+		err = userService.Delete(u)
+		if err != nil {
+			return err
+		}
+	}
+
+	storedRoles, err := roleService.GetAll()
+	if err != nil {
+		return err
+	}
+	for _, r := range storedRoles {
+		err = roleService.Delete(r)
+		if err != nil {
+			return err
+		}
+	}
+
+	// create dataset
+	err = createTestUsers()
+	if err != nil {
+		return err
+	}
+
+	err = createTestRoles()
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+//TODO(faseid): change password to hashed/encrypted one
+func createTestUsers() error {
+	randomRoleMap := map[string]string{pndID: randomRoleName}
+
+	users := []rbacImpl.User{
+		{UserID: uuid.MustParse(adminID), UserName: "testAdmin", Roles: adminRoleMap, Password: "admin"},
+		{UserID: uuid.MustParse(userID), UserName: "testUser", Roles: userRoleMap, Password: "user"},
+		{UserID: uuid.New(), UserName: "testRandom", Roles: randomRoleMap, Password: "aurelius", Token: "wrong token"},
+	}
+
+	for _, u := range users {
+		err := userService.Add(rbacImpl.NewUser(u.ID(), u.Name(), u.Roles, u.Password, ""))
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func createTestRoles() error {
+	roles := []rbacImpl.Role{
+		{
+			RoleID:      uuid.MustParse(adminRoleID),
+			RoleName:    "adminTestRole",
+			Description: "Admin",
+			Permissions: []string{
+				"/gosdn.core.CoreService/GetPnd",
+				"/gosdn.core.CoreService/GetPndList",
+			},
+		},
+		{
+			RoleID:      uuid.New(),
+			RoleName:    "userTestRole",
+			Description: "User",
+			Permissions: []string{
+				"/gosdn.pnd.PndService/GetChangeList",
+			},
+		},
+		{
+			RoleID:      uuid.New(),
+			RoleName:    randomRoleName,
+			Description: "Not a role",
+			Permissions: []string{
+				"nope",
+			},
+		},
+	}
+
+	for _, r := range roles {
+		err := roleService.Add(rbacImpl.NewRole(r.ID(), r.Name(), r.Description, r.Permissions))
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}