added ssh steps for interacting with and testing machines over ssh

lib/generators/project/features/steps/ssh_steps.rb

@@ -0,0 +1,77 @@
+Given /^I have no public keys set$/ do
+  @auth_methods = %w(password)
+end
+
+Then /^I can ssh to "([^\"]*)" with the following credentials:$/ do |host, table|
+  @auth_methods ||= %w(publickey password)
+
+  credentials = table.hashes
+  credentials.each do |creds|
+    lambda {
+	    Net::SSH.start(host, creds["username"], :password => creds["password"], :auth_methods => @auth_methods)
+    }.should_not raise_error(Net::SSH::AuthenticationFailed)
+  end
+end
+
+Then /^I can ssh to the following hosts with these credentials:$/ do |table|
+  @keys ||= []
+  @auth_methods ||= %w(password)
+  session_details = table.hashes
+
+  session_details.each do |session|
+    # initialize a list of keys and auth methods for just this session, as 
+    # session can have session-specific keys mixed with global keys
+    session_keys = Array.new(@keys)
+    session_auth_methods = Array.new(@auth_methods) 
+
+    # you can pass in a keyfile in the session details, so we need to 
+    if session["keyfile"]
+      session_keys << session["keyfile"]
+      session_auth_methods << "publickey"
+    end
+
+    lambda {
+	    Net::SSH.start(session["hostname"], session["username"], :password => session["password"], 
+                                                               :auth_methods => session_auth_methods,
+                                                               :keys => session_keys)
+    }.should_not raise_error(Net::SSH::AuthenticationFailed)
+  end
+end
+
+Given /^I have the following public keys:$/ do |table|
+  @keys = []
+  public_key_paths = table.hashes
+
+  public_key_paths.each do |key|
+    File.exist?(key["keyfile"]).should be_true
+    @keys << key["keyfile"]
+  end
+
+  @auth_methods ||= %w(password)
+  @auth_methods << "publickey"
+end
+
+When /^I ssh to "([^\"]*)" with the following credentials:$/ do |hostname, table|
+  session = table.hashes.first
+  session_keys = Array.new(@keys)
+  session_auth_methods = Array.new(@auth_methods) 
+  if session["keyfile"]
+    session_keys << session["keyfile"]
+    session_auth_methods << "publickey"
+  end
+
+  lambda {
+    @connection = Net::SSH.start(hostname, session["username"], :password => session["password"], 
+                                                                :auth_methods => session_auth_methods,
+                                                                :keys => session_keys)
+  }.should_not raise_error
+end
+
+When /^I run "([^\"]*)"$/ do |command|
+  @output = @connection.exec!(command)
+end
+
+Then /^I should see "([^\"]*)" in the output$/ do |string|
+  @output.should =~ /#{string}/
+end
+