first import

sites/all/modules/references/user_reference/user_reference.devel_generate.inc

@@ -0,0 +1,23 @@
+<?php
+
+function user_reference_devel_generate($object, $field, $instance, $bundle) {
+  if (field_behaviors_widget('multiple values', $instance) == FIELD_BEHAVIOR_CUSTOM) {
+    return devel_generate_multiple('_user_reference_devel_generate', $object, $field);
+  }
+  else {
+    return _user_reference_devel_generate($object, $field);
+  }
+}
+
+function _user_reference_devel_generate($object, $field) {
+  $object_field = array();
+  $allowed_values = user_reference_potential_references($field);
+  if (isset($allowed_values[0])) {
+    unset($allowed_values[0]);
+  }
+  if (!empty($allowed_values)) {
+    // Just pick one of the specified allowed values.
+    $object_field['uid'] = array_rand($allowed_values);
+  }
+  return $object_field;
+}

sites/all/modules/references/user_reference/user_reference.info

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+name = User Reference
+description = Defines a field type for referencing a user from a node.
+package = Fields
+core = 7.x
+dependencies[] = field
+dependencies[] = references
+dependencies[] = options
+
+; Information added by drupal.org packaging script on 2011-12-22
+version = "7.x-2.0"
+core = "7.x"
+project = "references"
+datestamp = "1324596643"
+

sites/all/modules/references/user_reference/user_reference.test

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+<?php
+
+/**
+ * @file
+ * Placeholder for the development of user_reference tests
+ */