[database][ios] error codes now correctly lower cased - incorrect tests updated to match

tests/src/tests/database/ref/index.js

@@ -26,7 +26,6 @@ const testGroups = [
   pushTests, onTests, onValueTests, onChildAddedTests, onceTests, updateTests,
   removeTests, setTests, transactionTests, queryTests, refTests, isEqualTests,
   priorityTests,
-  onValueTests, onChildAddedTests,
   offTests,
 ];
 

tests/src/tests/database/ref/on/onValueTests.js

@@ -342,7 +342,7 @@ function onTests({ describe, context, it, firebase, tryCatch }) {
               'Database: Client doesn\'t have permission to access the desired data. (database/permission-denied).',
             );
 
-            error.code.should.eql('DATABASE/PERMISSION-DENIED');
+            error.code.should.eql('database/permission-denied');
 
             // test ref matches
             error.ref.path.should.eql(invalidRef.path);

tests/src/tests/database/ref/onceTests.js

@@ -62,7 +62,7 @@ function onceTests({ describe, firebase, it, tryCatch }) {
 
         const failureCb = tryCatch((error) => {
           // Assertion
-          error.code.includes('DATABASE/PERMISSION-DENIED').should.be.true();
+          error.code.includes('database/permission-denied').should.be.true();
           resolve();
         }, reject);