added tests to cli

cli.js

@@ -5,12 +5,4 @@
 
 'use strict';
 
-var cli = require('./local-cli/cli.js');
-
-function run() {
-  cli.run();
-}
-
-module.exports = {
-  run: run
-};
+module.exports = require('./local-cli/cli.js');

local-cli/__tests__/setupPodfileTests.js

@@ -0,0 +1,38 @@
+'use strict';
+
+jest.dontMock('../install');
+
+var install = require('../install.js');
+var fs = require('fs');
+
+describe('setup Podfile', function() {
+  it('creates a Podfile', function() {
+    fs.mkdirSync('./podfile-test');
+    process.chdir('./podfile-test');
+    var setupPodfile = install.setupPodfile();
+
+    expect(setupPodfile.podfileExists()).toBe(true);
+    process.chdir('../');
+  });
+
+  it('expects Podfile to containing opening & closing react native tag', function() {
+    process.chdir('./podfile-test');
+    var setupPodfile = install.setupPodfile();
+
+    var openingReactTag = '#<React-Native>';
+    var closingReactTag = '#</React-Native>';
+
+    expect(setupPodfile.podfileText()).toContain(openingReactTag);
+    expect(setupPodfile.podfileText()).toContain(closingReactTag);
+    process.chdir('../');
+  });
+
+  it('expects Podfile to contain React Pod', function() {
+    process.chdir('./podfile-test');
+    var setupPodfile = install.setupPodfile();
+    expect(setupPodfile.podfileText()).toContain('pod \'React\'');
+    process.chdir('../');
+    fs.unlink("./podfile-test/Podfile");
+    fs.rmdirSync("./podfile-test");
+  });
+});

local-cli/install.js

@@ -83,6 +83,20 @@ module.exports = {
         throw e;
       }
     }
+
+    return {
+      podfileExists: function() {
+        try {
+          var podfileText = fs.readFileSync(PODFILE_PATH, 'utf8');
+          return true;
+        } catch(e) {
+          return false;
+        }
+      },
+      podfileText: function() {
+        return podfileText;
+      }
+    };
   },
   init: function(arguement) {
     // arguement is available for future arguement commands