[#3865] External subcommands

This patch allows the puppet single-executable to invoke external,
hyphenated subcommands, much like how git does.

1 files changed, 22 insertions, 0 deletions

diff --git a/spec/unit/util/command_line.rb b/spec/unit/util/command_line.rb
index 7413e57d1..31b2d1b03 100644
--- a/spec/unit/util/command_line.rb
+++ b/spec/unit/util/command_line.rb
@@ -83,4 +83,26 @@ describe Puppet::Util::CommandLine do
         command_line.legacy_executable_name.should == "puppetmasterd"
     end
 
+    describe "when the subcommand is not implemented" do
+        it "should find and invoke an executable with a hyphenated name" do
+            commandline = Puppet::Util::CommandLine.new("puppet", ['whatever', 'argument'], @tty)
+            Puppet::Util.expects(:binary).with('puppet-whatever').returns('/dev/null/puppet-whatever')
+            commandline.expects(:system).with('/dev/null/puppet-whatever', 'argument')
+
+            commandline.execute
+        end
+
+        describe "and an external implementation cannot be found" do
+            it "should abort and show the usage message" do
+                commandline = Puppet::Util::CommandLine.new("puppet", ['whatever', 'argument'], @tty)
+                Puppet::Util.expects(:binary).with('puppet-whatever').returns(nil)
+                commandline.expects(:system).never
+
+                commandline.expects(:usage_message).returns("the usage message")
+                commandline.expects(:abort).with{|x| x =~ /the usage message/}.raises("stubbed abort")
+
+                lambda{ commandline.execute }.should raise_error('stubbed abort')
+            end
+        end
+    end
 end