Fix unit test and bump circle.yml to 1.8 (#25)

Author: sparrc

circle.yml

@@ -20,8 +20,8 @@ dependencies:
   pre:
     - sudo apt-get remove --purge golang
     - sudo rm -rf /usr/local/go/
-    - cd ~/download_cache && wget --no-clobber 'https://storage.googleapis.com/golang/go1.5.3.linux-amd64.tar.gz'
-    - cd ~/download_cache && sudo tar -xzf go1.5.3.linux-amd64.tar.gz -C /usr/local
+    - cd ~/download_cache && wget --no-clobber 'https://storage.googleapis.com/golang/go1.8.linux-amd64.tar.gz'
+    - cd ~/download_cache && sudo tar -xzf go1.8.linux-amd64.tar.gz -C /usr/local
     - cd ~/download_cache && wget --no-clobber 'https://github.com/Masterminds/glide/releases/download/0.8.3/glide-0.8.3-linux-amd64.tar.gz'
     - cd ~/download_cache && tar -xzf glide-0.8.3-linux-amd64.tar.gz
     - cd ~/download_cache && sudo cp linux-amd64/glide /usr/local/bin/glide

remoteconfig_test.go

@@ -616,7 +616,8 @@ func (s *RemoteConfigSuite) TestReadJSONValidateEmbeddedStruct() {
 
 	c := &SampleConfig{}
 	err := ReadJSONValidate(cfgBuffer, c)
-	assert.EqualError(s.T(), err, "Failed to decode JSON, with error, json: cannot unmarshal string into Go value of type int64")
+	assert.Error(s.T(), err)
+	assert.Contains(s.T(), err.Error(), "Failed to decode JSON")
 }
 
 func (s *RemoteConfigSuite) TestReadJSONValidateInvalidJSON() {