Fix tests

src/core/client/framework/testHelpers/createFluentBundle.ts

@@ -5,6 +5,31 @@ import path from "path";
 // These locale prefixes are always loaded.
 const commonPrefixes = ["common", "framework"];
 
+function decorateErrorWhenMissing(bundle: FluentBundle) {
+  const originalHasMessage = bundle.hasMessage;
+  const originalGetMessage = bundle.getMessage;
+  const missing: string[] = [];
+  bundle.hasMessage = (id: string) => {
+    const result = originalHasMessage.apply(bundle, [id]);
+    if (!result) {
+      const msg = `${bundle.locales} translation for key "${id}" not found`;
+      // tslint:disable-next-line:no-console
+      console.error(msg);
+      missing.push(id);
+    }
+    // Even if it is missing, we say it is available and later return a descriptive error
+    // string as the translation.
+    return true;
+  };
+  bundle.getMessage = (id: string) => {
+    if (missing.indexOf(id) !== -1) {
+      return `Missing translation "${id}"`;
+    }
+    return originalGetMessage.apply(bundle, [id]);
+  };
+  return bundle;
+}
+
 function createFluentBundle(
   target: string,
   pathToLocale: string
@@ -15,13 +40,11 @@ function createFluentBundle(
   files.forEach(f => {
     prefixes.forEach(prefix => {
       if (f.startsWith(prefix)) {
-        bundle.addMessages(
-          fs.readFileSync(path.resolve(pathToLocale, f)).toString()
-        );
+        bundle.addMessages(require(path.resolve(pathToLocale, f)));
       }
     });
   });
-  return bundle;
+  return decorateErrorWhenMissing(bundle);
 }
 
 export default createFluentBundle;