Increase unit test coverage of auth code

red/api/auth/tokens/index.js

@@ -0,0 +1,81 @@
+/**
+ * Copyright 2015 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+var when = require("when");
+var Sessions;
+
+function generateToken(length) {
+    var c = "ABCDEFGHIJKLMNOPQRSTUZWXYZabcdefghijklmnopqrstuvwxyz1234567890";
+    var token = [];
+    for (var i=0;i<length;i++) {
+        token.push(c[Math.floor(Math.random()*c.length)]);
+    }
+    return token.join("");
+}
+
+
+var sessionModule;
+
+function moduleSelector(aSettings) {
+    var toReturn;
+    if (aSettings.sessionStorageModule) {
+        if (typeof aSettings.sessionStorageModule === "string") {
+            // TODO: allow storage modules to be specified by absolute path
+            toReturn = require("./"+aSettings.sessionStorageModule);
+        } else {
+            toReturn = aSettings.sessionStorageModule;
+        }
+    } else {
+        toReturn = require("./localfilesystem");
+    }
+    return toReturn;
+}
+
+module.exports = {
+    init: function(settings) {
+        sessionModule = moduleSelector(settings);
+        sessionModule.init(settings);
+    },
+    get: function(token) {
+        return sessionModule.get(token).then(function(session) {
+            if (session && session.accessExpires < Date.now()) {
+                return sessionModule.delete(token).then(function() {
+                    return null;
+                });
+            } else {
+                return session;
+            }
+        })
+    },
+    create: function(user,client,scope) {
+        var accessToken = generateToken(128);
+        var session = {
+            user:user,
+            client:client,
+            scope:scope,
+            accessToken: accessToken,
+        };
+        return sessionModule.create(accessToken,session).then(function() {
+            return {
+                accessToken: accessToken,
+            }
+        });
+    },
+    revoke: function(token) {
+        return sessionModule.delete(token);
+    }
+}
+