docs: improve missing data error (#3406)

2 files changed, 3 insertions, 0 deletions

diff --git a/test/internal/locale-proxy.spec.ts b/test/internal/locale-proxy.spec.ts
index 1b6e060b..133e7084 100644
--- a/test/internal/locale-proxy.spec.ts
+++ b/test/internal/locale-proxy.spec.ts
@@ -97,6 +97,7 @@ describe('LocaleProxy', () => {
       expect(() => locale.category.missing).toThrow(
         new FakerError(
           `The locale data for 'category.missing' are missing in this locale.
+  If this is a custom Faker instance, please make sure all required locales are used e.g. '[de_AT, de, en, base]'.
   Please contribute the missing data to the project or use a locale/Faker instance that has these data.
   For more information see https://fakerjs.dev/guide/localization.html`
         )
@@ -107,6 +108,7 @@ describe('LocaleProxy', () => {
       expect(() => locale.airline.missing).toThrow(
         new FakerError(
           `The locale data for 'airline.missing' are missing in this locale.
+  If this is a custom Faker instance, please make sure all required locales are used e.g. '[de_AT, de, en, base]'.
   Please contribute the missing data to the project or use a locale/Faker instance that has these data.
   For more information see https://fakerjs.dev/guide/localization.html`
         )
diff --git a/test/modules/location.spec.ts b/test/modules/location.spec.ts
index 78b68812..8af00f37 100644
--- a/test/modules/location.spec.ts
+++ b/test/modules/location.spec.ts
@@ -220,6 +220,7 @@ describe('location', () => {
           expect(() => faker.location.zipCode({ state: 'XX' })).toThrow(
             new FakerError(
               `The locale data for 'location.postcode_by_state' are missing in this locale.
+  If this is a custom Faker instance, please make sure all required locales are used e.g. '[de_AT, de, en, base]'.
   Please contribute the missing data to the project or use a locale/Faker instance that has these data.
   For more information see https://fakerjs.dev/guide/localization.html`
             )