fixes issue #577

[chavacava]

Closes #577
Adds tests for configuration loading

[rustysys-dev]

I can confirm this fixes my issue!

using the same config as mentioned in #577

dx-admin-backend on  HEAD (99da7bb) [?] via 🐹 v1.16.3 via 4GiB/31GiB took 7ms
•100% at 12:03:20 ❯ ../revive/revive -config revive.toml -formatter stylish ./...
internal/utils/utils.go
  (17, 3)   https://revive.run/r#deep-exit     calls to log.Fatalln only in main() or init() functions
  (26, 28)  https://revive.run/r#add-constant  avoid magic numbers like '1', create a named constant for it

internal/adapter/server/server.go
  (57, 7)  https://revive.run/r#unused-receiver  method receiver 's' is not referenced in method's body, consider removing or renaming it as _
  (61, 4)  https://revive.run/r#defer            return in a defer function has no effect
  (66, 3)  https://revive.run/r#defer            return in a defer function has no effect

internal/adapter/middleware/auth/auth.go
  (37, 18)  https://revive.run/r#add-constant  avoid magic numbers like '2', create a named constant for it
  (37, 28)  https://revive.run/r#add-constant  avoid magic numbers like '0', create a named constant for it
  (42, 34)  https://revive.run/r#add-constant  avoid magic numbers like '1', create a named constant for it
  (46, 45)  https://revive.run/r#add-constant  avoid magic numbers like '1', create a named constant for it
  (69, 23)  https://revive.run/r#add-constant  avoid magic numbers like '200', create a named constant for it
  (16, 2)   https://revive.run/r#exported      exported const TokenRawKey should have comment (or a comment on this block) or be unexported
  (21, 1)   https://revive.run/r#exported      exported function AccessController should have comment or be unexported

internal/usecase/usecase.go
  (11, 7)  https://revive.run/r#unused-receiver  method receiver 'u' is not referenced in method's body, consider removing or renaming it as _
  (5, 6)   https://revive.run/r#exported         exported type Usecase should have comment or be unexported
  (7, 1)   https://revive.run/r#exported         exported function New should have comment or be unexported
  (11, 1)  https://revive.run/r#exported         exported method Usecase.Private should have comment or be unexported

internal/utils/log/log.go
  (76, 23)  https://revive.run/r#add-constant  string literal "ERROR" appears, at least, 3 times, create a named constant for it
  (11, 7)   https://revive.run/r#exported      exported const TraceKey should have comment or be unexported

internal/entity/token.go
  (44, 27)  https://revive.run/r#add-constant  avoid magic numbers like '0', create a named constant for it
  (44, 58)  https://revive.run/r#add-constant  avoid magic numbers like '0', create a named constant for it
  (90, 86)  https://revive.run/r#add-constant  avoid magic numbers like '0', create a named constant for it
  (12, 1)   https://revive.run/r#exported      comment on exported type Auth0AccessToken should be of the form "Auth0AccessToken ..." (with optional leading article)
  (40, 1)   https://revive.run/r#exported      exported method Auth0AccessToken.Valid should have comment or be unexported
  (89, 1)   https://revive.run/r#exported      exported method Auth0AccessToken.VerifyIssuer should have comment or be unexported
  (93, 1)   https://revive.run/r#exported      comment on exported method Auth0AccessToken.ValidateLoad should be of the form "ValidateLoad ..."

internal/utils/config/config.go
  (15, 2)  https://revive.run/r#exported  comment on exported var Auth0Audiences should be of the form "Auth0Audiences ..."

internal/utils/version.go
  (5, 1)   https://revive.run/r#exported  exported function Version should have comment or be unexported
  (11, 1)  https://revive.run/r#exported  exported function GetVersion should have comment or be unexported


 ✖ 28 problems (28 errors) (0 warnings)

dx-admin-backend on  HEAD (99da7bb) [?] via 🐹 v1.16.3 via 4GiB/31GiB took 67ms
•100% at 12:03:44 ❯ echo $?
1

[rustysys-dev]

LGTM