- WIP: implement data pre-processor for #101

- implement checks for #101
- add some specs

test/mocks/Console.mock.js

@@ -0,0 +1,11 @@
+module.exports = class ConsoleMock {
+  constructor() {
+    this.messageList = [];
+  }
+
+  debug(...message) { this.messageList.push({ type: 'debug', message }); }
+  error(...message) { this.messageList.push({ type: 'error', message }); }
+  log(...message) { this.messageList.push({ type: 'log', message }); }
+  info(...message) { this.messageList.push({ type: 'info', message }); }
+  warn(...message) { this.messageList.push({ type: 'warn', message }); }
+}