Fix(medusa-test-utils): config loader (#6919)

.changeset/heavy-pandas-melt.md

@@ -0,0 +1,6 @@
+---
+"medusa-test-utils": patch
+"@medusajs/currency": patch
+---
+
+Medusa test utils use correct loader to init DB.

packages/currency/src/joiner-config.ts

@@ -5,6 +5,8 @@ import Currency from "./models/currency"
 
 export const LinkableKeys: Record<string, string> = {
   code: Currency.name,
+  currency_code: Currency.name,
+  default_currency_code: Currency.name,
 }
 
 const entityLinkableKeysMap: MapToConfig = {}

packages/medusa-test-utils/src/medusa-test-runner-utils/use-db.js

@@ -26,7 +26,9 @@ module.exports = {
       Object.entries(env).forEach(([k, v]) => (process.env[k] = v))
     }
 
-    const { configModule } = getConfigFile(cwd, `medusa-config`)
+    const configModuleLoader =
+      require("@medusajs/medusa/dist/loaders/config").default
+    const configModule = configModuleLoader(cwd)
 
     const featureFlagsLoader =
       require("@medusajs/medusa/dist/loaders/feature-flags").default