Improve Cucumber tests

The test for SSH connection name switching was faulty
Improve the regexes used in the assertions

features/sshconnect.feature

@@ -6,12 +6,6 @@ Feature: SSH Connection
     And a task which executes as root
 
   Scenario: Switching from default user to root and back again
-    When I run cap "git:check"
-    Then the task is successful
-    And references in the remote repo are listed
     When I run cap "am_i_root"
     Then the task is successful
-    And contains "root" in the output
-    Then I run cap "git:check"
-    Then the task is successful
-    And references in the remote repo are listed
+    And the output matches "I am uid=0\(root\)" followed by "I am uid=\d+\(vagrant\)"

features/step_definitions/assertions.rb

@@ -106,10 +106,14 @@ When(/^an error is raised$/) do
   run_vagrant_command(test_file_exists(error))
 end
 
-Then(/contains "(.*?)" in the output/) do |expected|
+Then(/contains "([^"]*)" in the output/) do |expected|
   expect(@output).to include(expected)
 end
 
-Then(/doesn't contain "(.*?)" in the output/) do |expected|
+Then(/the output matches "([^"]*)" followed by "([^"]*)"/) do |expected, followedby|
+  expect(@output).to match(/#{expected}.*#{followedby}/m)
+end
+
+Then(/doesn't contain "([^"]*)" in the output/) do |expected|
   expect(@output).not_to include(expected)
 end

spec/support/tasks/root.rake

@@ -4,4 +4,8 @@ task :am_i_root do
     ident = capture :id, '-a'
     info "I am #{ident}"
   end
+  on roles(:all) do |host|
+    ident = capture :id, '-a'
+    info "I am #{ident}"
+  end
 end