Updated GitlabConfig spec to be less brittle

spec/gitlab_config_spec.rb

@@ -3,29 +3,55 @@ require_relative '../lib/gitlab_config'
 
 describe GitlabConfig do
   let(:config) { GitlabConfig.new }
+  let(:config_data) do
+    {
+      # 'user' => 'git',
+      # 'http_settings' => {
+      #   'self_signed_cert' => false
+      # },
+      # 'log_level' => 'ERROR',
+      # 'audit_usernames' => true,
+      # 'log_format' => 'json', # Not sure on other values?
+      # 'git_trace_log_file' => nil
+    }
+  end
+
+  before do
+    expect(YAML).to receive(:load_file).and_return(config_data)
+  end
 
-  describe :gitlab_url do
+  describe '#gitlab_url' do
     let(:url) { 'http://test.com' }
+
     subject { config.gitlab_url }
-    before { config.send(:config)['gitlab_url'] = url }
+
+    before { config_data['gitlab_url'] = url }
 
     it { should_not be_empty }
     it { should eq(url) }
 
     context 'remove trailing slashes' do
-      before { config.send(:config)['gitlab_url'] = url + '//' }
+      before { config_data['gitlab_url'] = url + '//' }
 
       it { should eq(url) }
     end
   end
 
-  describe :audit_usernames do
+  describe '#audit_usernames' do
     subject { config.audit_usernames }
 
     it("returns false by default") { should eq(false) }
   end
 
-  describe :log_format do
+  describe '#log_level' do
+    subject { config.log_level }
+
+    it 'returns "INFO" by default' do
+      should eq('INFO')
+    end
+  end
+
+  describe '#log_format' do
     subject { config.log_format }
 
     it 'returns "text" by default' do