main funcions fixes

desktop-operator/node_modules/is-lambda/test.js

@@ -0,0 +1,16 @@
+'use strict'
+
+var assert = require('assert')
+var clearRequire = require('clear-require')
+
+process.env.AWS_EXECUTION_ENV = 'AWS_Lambda_nodejs6.10'
+process.env.LAMBDA_TASK_ROOT = '/var/task'
+
+var isCI = require('./')
+assert(isCI)
+
+delete process.env.AWS_EXECUTION_ENV
+
+clearRequire('./')
+isCI = require('./')
+assert(!isCI)