Bug fix to make sure git check works properly.

spec/homesick_cli_spec.rb

@@ -24,17 +24,17 @@ describe Homesick::CLI do
       end
     end
 
-    context 'when git is not installed' do
+    context 'when a git version that doesn\'t meet the minimum required is installed' do
       before do
-        expect_any_instance_of(Homesick::Actions::GitActions).to receive(:`).and_return("git version 1.0.0")
+        expect_any_instance_of(Homesick::Actions::GitActions).to receive(:`).and_return("git version 1.7.6")
       end
-      it 'should raise an exception when' do
+      it 'should raise an exception' do
         output = Capture.stdout{ expect{Homesick::CLI.new}.to raise_error SystemExit }
         expect(output.chomp).to include(Homesick::Actions::GitActions::STRING)
       end
     end
 
-    context 'when git is installed' do
+    context 'when a git version that is the same as the minimum required is installed' do
       before do
         expect_any_instance_of(Homesick::Actions::GitActions).to receive(:`).at_least(:once).and_return("git version #{Homesick::Actions::GitActions::STRING}")
       end
@@ -43,6 +43,17 @@ describe Homesick::CLI do
         expect(output.chomp).not_to include(Homesick::Actions::GitActions::STRING)
       end
     end
+
+    context 'when a git version that is greater than the minimum required is installed' do
+      before do
+        expect_any_instance_of(Homesick::Actions::GitActions).to receive(:`).at_least(:once).and_return("git version 3.9.8")
+      end
+      it 'should not raise an exception' do
+        output = Capture.stdout{ expect{Homesick::CLI.new}.not_to raise_error }
+        expect(output.chomp).not_to include(Homesick::Actions::GitActions::STRING)
+      end
+
+    end
   end
 
   describe 'clone' do