Add UT for leetcode_client.getProblems

Signed-off-by: Eric Wang <skygragon@gmail.com>

Author: skygragon

lib/config.js

@@ -23,7 +23,7 @@ function initConfig() {
   var config = defaultConfig;
 
   // check local config: ~/.lcconfig
-  var f = h.getHomeDir() + '/.lcconfig';
+  var f = h.getConfigFile();
   if (fs.existsSync(f)) {
     var localConfig = JSON.parse(fs.readFileSync(f));
     _.extend(defaultConfig, localConfig);

package.json

@@ -43,6 +43,7 @@
     "eslint": "^3.3.1",
     "eslint-config-google": "^0.6.0",
     "mocha": "^3.0.2",
+    "nock": "^8.0.0",
     "nyc": "^8.1.0"
   }
 }

test/mock/problems.json

@@ -0,0 +1,21 @@
+var assert = require('chai').assert;
+var nock = require('nock');
+
+var client = require('../lib/leetcode_client');
+var config = require('../lib/config');
+
+describe('leetcode_client', function() {
+  describe('#getProblems', function() {
+    it('should ok', function(done) {
+      nock(config.PROBLEMS_URL)
+        .get('/')
+        .replyWithFile(200, './test/mock/problems.json');
+
+      client.getProblems(function(e, problems) {
+        assert.equal(e, null);
+        assert.equal(problems.length, 382);
+        done();
+      });
+    });
+  }); // #getProblems
+});