added unit testing, and started implementing unit tests...phew

node_modules/logform/dist/printf.js

@@ -0,0 +1,43 @@
+'use strict';
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var _require = require('triple-beam'),
+    MESSAGE = _require.MESSAGE;
+
+var Printf =
+/*#__PURE__*/
+function () {
+  function Printf(templateFn) {
+    _classCallCheck(this, Printf);
+
+    this.template = templateFn;
+  }
+
+  _createClass(Printf, [{
+    key: "transform",
+    value: function transform(info) {
+      info[MESSAGE] = this.template(info);
+      return info;
+    }
+  }]);
+
+  return Printf;
+}();
+/*
+ * function printf (templateFn)
+ * Returns a new instance of the printf Format that creates an
+ * intermediate prototype to store the template string-based formatter
+ * function.
+ */
+
+
+module.exports = function (opts) {
+  return new Printf(opts);
+};
+
+module.exports.Printf = module.exports.Format = Printf;