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website/functions/node_modules/stubs/index.js

@@ -0,0 +1,35 @@
+'use strict'
+
+module.exports = function stubs(obj, method, cfg, stub) {
+  if (!obj || !method || !obj[method])
+    throw new Error('You must provide an object and a key for an existing method')
+
+  if (!stub) {
+    stub = cfg
+    cfg = {}
+  }
+
+  stub = stub || function() {}
+
+  cfg.callthrough = cfg.callthrough || false
+  cfg.calls = cfg.calls || 0
+
+  var norevert = cfg.calls === 0
+
+  var cached = obj[method].bind(obj)
+
+  obj[method] = function() {
+    var args = [].slice.call(arguments)
+    var returnVal
+
+    if (cfg.callthrough)
+      returnVal = cached.apply(obj, args)
+
+    returnVal = stub.apply(obj, args) || returnVal
+
+    if (!norevert && --cfg.calls === 0)
+      obj[method] = cached
+
+    return returnVal
+  }
+}