diff --git a/spec/test_helpers.rb b/spec/test_helpers.rb
index c7f803d..1e9d8bc 100644
--- a/spec/test_helpers.rb
+++ b/spec/test_helpers.rb
@@ -11,19 +11,36 @@ def fixtures_path
     File.expand_path(File.dirname(__FILE__) + "/unit/fixtures/")
   end
 
+  def cookbook_path
+    File.expand_path('cookbooks', tempdir)
+  end
+
+  def environment_path
+    File.expand_path('environments', tempdir)
+  end
+
   def stdout
     stdout_io.string
   end
 
   def set_chef_config
     knife.config[:chef_repo_path] = tempdir
-    knife.config[:cookbook_path] = File.join(fixtures_path, 'cookbooks')
-    knife.config[:environment_path] = File.join(fixtures_path, 'environments')
+    knife.config[:cookbook_path] = File.join(tempdir, 'cookbooks')
+    knife.config[:environment_path] = File.join(tempdir, 'environments')
     knife.config[:chef_server_url] = "http://localhost:4000"
-    knife.config[:client_key] = File.join(fixtures_path, 'test_client.pem')
+    knife.config[:client_key] = File.join(tempdir, 'test_client.pem')
     knife.config[:client_name] = "test-client"
     knife.config[:node_name] = "test-node"
     knife.config[:cache_type] = 'BasicFile'
-    knife.config[:cache_options] = {:path =>  File.join(fixtures_path, 'checksums')}
+    knife.config[:cache_options] = {:path =>  File.join(tempdir, 'checksums')}
+  end
+
+
+  def copy_test_data
+    FileUtils.cp_r "#{fixtures_path}/.", tempdir
+  end
+
+  def cleanup_test_data
+    FileUtils.rm_r Dir.glob("#{tempdir}/*")
   end
 end
\ No newline at end of file
diff --git a/spec/unit/fixtures/environments/example.json b/spec/unit/fixtures/environments/example.json
index db83c31..231b22d 100644
--- a/spec/unit/fixtures/environments/example.json
+++ b/spec/unit/fixtures/environments/example.json
@@ -2,7 +2,6 @@
   "name": "example",
   "description": "This is an example environment",
   "cookbook_versions": {
-    "example": ">= 1.0.0"
   },
   "json_class": "Chef::Environment",
   "chef_type": "environment",
diff --git a/spec/unit/spork_bump_spec.rb b/spec/unit/spork_bump_spec.rb
index c9fd93d..0f9dfff 100644
--- a/spec/unit/spork_bump_spec.rb
+++ b/spec/unit/spork_bump_spec.rb
@@ -18,15 +18,13 @@
 require 'spec_helper'
 require 'chef/knife/spork-bump'
 require 'knife-spork/runner'
+require 'fileutils'
 
 module KnifeSpork
   describe SporkBump do
 
     let(:stdout_io) { StringIO.new }
     let(:stderr_io) { StringIO.new }
-    let(:default_cookbook_path) do
-      File.expand_path('cookbooks', fixtures_path)
-    end
 
     subject(:knife) do
       SporkBump.new(argv).tap do |c|
@@ -34,8 +32,18 @@ module KnifeSpork
       end
     end
 
+    before(:all) do
+      copy_test_data
+    end
+
+    after(:all) do
+      cleanup_test_data
+    end
+
     let(:argv) { ["example"] }
 
+    let(:metadata_file) { "#{cookbook_path}/example/metadata.rb" }
+
     describe '#run' do
       before(:each) { set_chef_config }
       it 'calls bump method' do
@@ -43,5 +51,42 @@ module KnifeSpork
         knife.run
       end
     end
+
+    describe '#bump' do
+      before(:each) { set_chef_config }
+      it 'automatically bumps patch level' do
+        knife.instance_variable_set(:@cookbook, knife.load_cookbook(argv.first))
+        knife.send(:bump)
+        File.read(metadata_file).should include "version \"0.0.2\""
+      end
+
+      it 'manually bumps patch version level' do
+        knife.instance_variable_set(:@cookbook, knife.load_cookbook(argv.first))
+        knife.instance_variable_set(:@name_args, ["example","patch"])
+        knife.send(:bump)
+        File.read(metadata_file).should include "version \"0.0.3\""
+      end
+
+      it 'manually bumps minor version level' do
+        knife.instance_variable_set(:@cookbook, knife.load_cookbook(argv.first))
+        knife.instance_variable_set(:@name_args, ["example","minor"])
+        knife.send(:bump)
+        File.read(metadata_file).should include "version \"0.1.0\""
+      end
+
+      it 'manually bumps major version level' do
+        knife.instance_variable_set(:@cookbook, knife.load_cookbook(argv.first))
+        knife.instance_variable_set(:@name_args, ["example","major"])
+        knife.send(:bump)
+        File.read(metadata_file).should include "version \"1.0.0\""
+      end
+
+      it 'manually sets version to 0.0.1' do
+        knife.instance_variable_set(:@cookbook, knife.load_cookbook(argv.first))
+        knife.instance_variable_set(:@name_args, ["example", "manual", "0.0.1"])
+        knife.send(:bump)
+        File.read(metadata_file).should include "version \"0.0.1\""
+      end
+    end
   end
 end
\ No newline at end of file
diff --git a/spec/unit/spork_promote_spec.rb b/spec/unit/spork_promote_spec.rb
index e7a8590..bb98dc9 100644
--- a/spec/unit/spork_promote_spec.rb
+++ b/spec/unit/spork_promote_spec.rb
@@ -24,8 +24,13 @@ module KnifeSpork
 
     let(:stdout_io) { StringIO.new }
     let(:stderr_io) { StringIO.new }
-    let(:default_cookbook_path) do
-      File.expand_path('cookbooks', fixtures_path)
+
+    before(:all) do
+      copy_test_data
+    end
+
+    after(:all) do
+      cleanup_test_data
     end
 
     subject(:knife) do
@@ -34,6 +39,8 @@ module KnifeSpork
       end
     end
 
+    let(:environment_file) { "#{environment_path}/example.json" }
+
     let(:argv) { ["example", "example"] }
 
     describe '#run' do
@@ -42,6 +49,46 @@ module KnifeSpork
         expect(knife).to receive(:promote)
         knife.run
       end
+
+      it 'calls save_environment_changes method by default' do
+        expect(knife).to receive(:save_environment_changes)
+        knife.run
+      end
+
+      it 'calls save_environment_changes_remote method when --remote is specified' do
+        knife.config[:remote] = true
+        expect(knife).to receive(:save_environment_changes_remote)
+        knife.run
+      end
+    end
+
+    describe '#promote' do
+      before(:each) { set_chef_config }
+      it 'updates version constraint for cookbook' do
+        knife.instance_variable_set(:@environments, ["example"])
+        knife.instance_variable_set(:@cookbook, "example")
+        expect(knife).to receive(:update_version_constraints)
+        knife.send(:promote, knife.load_environment_from_file("example"), "example")
+      end
+    end
+
+    describe '#save_environment_changes' do
+      before(:each) { set_chef_config }
+      it 'updates the constraint in the environment file' do
+        knife.instance_variable_set(:@environments, ["example"])
+        knife.instance_variable_set(:@cookbook, "example")
+        knife.send(:save_environment_changes, "example", knife.pretty_print_json(knife.load_environment_from_file("example").to_hash))
+        File.read(environment_file).should include "\"example\": \"= 0.0.1\""
+      end
+    end
+
+    describe '#save_environment_changes_remote' do
+      before(:each) { set_chef_config }
+      it 'saves the environment change to the server' do
+        knife.instance_variable_set(:@environments, ["example"])
+        knife.instance_variable_set(:@cookbook, "example")
+        knife.send(:save_environment_changes_remote, "example")
+      end
     end
   end
 end
\ No newline at end of file
diff --git a/spec/unit/spork_upload_spec.rb b/spec/unit/spork_upload_spec.rb
index b299d49..5e17b4d 100644
--- a/spec/unit/spork_upload_spec.rb
+++ b/spec/unit/spork_upload_spec.rb
@@ -25,8 +25,13 @@ module KnifeSpork
 
     let(:stdout_io) { StringIO.new }
     let(:stderr_io) { StringIO.new }
-    let(:default_cookbook_path) do
-      File.expand_path('cookbooks', fixtures_path)
+
+    before(:all) do
+      copy_test_data
+    end
+
+    after(:all) do
+      cleanup_test_data
     end
 
     subject(:knife) do