Cleaned up gitlab_shell_spec

* Used mocks to test if methods are colled
* Increased coverage
* Removed duplication and excess verbage

spec/gitlab_shell_spec.rb

@@ -2,58 +2,94 @@ require_relative 'spec_helper'
 require_relative '../lib/gitlab_shell'
 
 describe GitlabShell do
-  describe :initialize do
-    before do
-      ssh_cmd 'git-receive-pack'
+  subject do
     ARGV[0] = 'key-56'
-      @shell = GitlabShell.new
+    GitlabShell.new.tap do |shell|
+      shell.stub(process_cmd: true)
+      shell.stub(api: api)
+    end
+  end
+  let(:api) do
+    double(GitlabNet).tap do |api|
+      api.stub(discover: 'John Doe')
+      api.stub(allowed?: true)
     end
+  end
+
+  describe :initialize do
+    before { ssh_cmd 'git-receive-pack' }
 
-    it { @shell.key_id.should == 'key-56' }
-    it { @shell.repos_path.should == "/home/git/repositories" }
+    its(:key_id) { should == 'key-56' }
+    its(:repos_path) { should == "/home/git/repositories" }
   end
 
   describe :parse_cmd do
     context 'w/o namespace' do
       before do
         ssh_cmd 'git-upload-pack gitlab-ci.git'
-        @shell = GitlabShell.new
-        @shell.send :parse_cmd
+        subject.send :parse_cmd
       end
 
-      it { @shell.repo_name.should == 'gitlab-ci.git' }
-      it { @shell.git_cmd.should == 'git-upload-pack' }
+      its(:repo_name) { should == 'gitlab-ci.git' }
+      its(:git_cmd) { should == 'git-upload-pack' }
     end
 
     context 'namespace' do
       before do
         ssh_cmd 'git-upload-pack dmitriy.zaporozhets/gitlab-ci.git'
-        @shell = GitlabShell.new
-        @shell.send :parse_cmd
+        subject.send :parse_cmd
       end
 
-      it { @shell.repo_name.should == 'dmitriy.zaporozhets/gitlab-ci.git' }
-      it { @shell.git_cmd.should == 'git-upload-pack' }
+      its(:repo_name) { should == 'dmitriy.zaporozhets/gitlab-ci.git' }
+      its(:git_cmd) { should == 'git-upload-pack' }
     end
   end
 
   describe :exec do
     context 'git-upload-pack' do
-      before do
-        ssh_cmd 'git-upload-pack gitlab-ci.git'
-        stubbed_shell
-      end
+      before { ssh_cmd 'git-upload-pack gitlab-ci.git' }
+      after { subject.exec }
 
-      it { @shell.exec.should be_true }
+      it "should process the command" do
+        subject.should_receive(:process_cmd).with()
+      end
     end
 
     context 'git-receive-pack' do
-      before do
-        ssh_cmd 'git-receive-pack gitlab-ci.git'
-        stubbed_shell
+      before { ssh_cmd 'git-receive-pack gitlab-ci.git' }
+      after { subject.exec }
+
+      it "should process the command" do
+        subject.should_receive(:process_cmd).with()
       end
+    end
+
+    context 'arbitrary command' do
+      before { ssh_cmd 'arbitrary command' }
+      after { subject.exec }
 
-      it { @shell.exec.should be_true }
+      it "should not process the command" do
+        subject.should_not_receive(:process_cmd)
+      end
+    end
+
+    context 'no command' do
+      before { ssh_cmd nil }
+      after { subject.exec }
+
+      it "should call api.discover" do
+        api.should_receive(:discover).with('key-56')
+      end
+    end
+  end
+
+  describe :validate_access do
+    before { ssh_cmd 'git-upload-pack gitlab-ci.git' }
+    after { subject.exec }
+
+    it "should call api.allowed?" do
+      api.should_receive(:allowed?).
+        with('git-upload-pack', 'gitlab-ci.git', 'key-56', '_any')
     end
   end
 
@@ -61,10 +97,4 @@ describe GitlabShell do
     ENV['SSH_ORIGINAL_COMMAND'] = cmd
   end
 
-  def stubbed_shell
-    ARGV[0] = 'key-56'
-    @shell = GitlabShell.new
-    @shell.stub(validate_access: true)
-    @shell.stub(process_cmd: true)
-  end
 end