remove INFO log in production, but not ERROR logs

src/core/logger.js

@@ -6,10 +6,9 @@
  * https://opensource.org/licenses/MIT.
  */
 
-const DEV =
-  process.env.NODE_ENV === 'development' || process.env.NODE_ENV == 'test';
-const logfn = DEV ? console.log : () => {};
-const errorfn = DEV ? console.error : () => {};
+const production = process.env.NODE_ENV === 'production';
+const logfn = production ? () => {} : console.log;
+const errorfn = console.error;
 
 export function info(msg) {
   logfn(`INFO: ${msg}`);

src/core/logger.test.js

@@ -52,14 +52,14 @@ describe('logging', () => {
       logging = require('./logger');
     });
 
-    test('error stripped', () => {
-      logging.error('msg1');
-      expect(console.error).not.toHaveBeenCalled();
-    });
-
     test('info stripped', () => {
       logging.info('msg2');
       expect(console.log).not.toHaveBeenCalled();
     });
+
+    test('error not stripped', () => {
+      logging.error('msg1');
+      expect(console.error).toHaveBeenCalled();
+    });
   });
 });