init

node_modules/assertion-error-formatter/lib/helpers/canonicalize.js

@@ -0,0 +1,50 @@
+'use strict';Object.defineProperty(exports, "__esModule", { value: true });exports.default =
+
+
+canonicalize;var _has_property = require('./has_property');var _has_property2 = _interopRequireDefault(_has_property);var _type = require('./type');var _type2 = _interopRequireDefault(_type);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}function canonicalize(value, stack) {
+  stack = stack || [];
+
+  function withStack(fn) {
+    stack.push(value);
+    var result = fn();
+    stack.pop();
+    return result;
+  }
+
+  if (stack.indexOf(value) !== -1) {
+    return '[Circular]';
+  }
+
+  switch ((0, _type2.default)(value)) {
+    case 'array':
+      return withStack(function () {
+        return value.map(function (item) {
+          return canonicalize(item, stack);
+        });
+      });
+    case 'function':
+      if (!(0, _has_property2.default)(value)) {
+        return '[Function]';
+      }
+    /* falls through */
+    case 'object':
+      return withStack(function () {
+        var canonicalizedObj = {};
+        Object.keys(value).sort().map(function (key) {
+          canonicalizedObj[key] = canonicalize(value[key], stack);
+        });
+        return canonicalizedObj;
+      });
+    case 'boolean':
+    case 'buffer':
+    case 'date':
+    case 'null':
+    case 'number':
+    case 'regexp':
+    case 'symbol':
+    case 'undefined':
+      return value;
+    default:
+      return value.toString();}
+
+}