Add additional unit tests for puppet provisioners

* Add puppet-masterless test for packer_build_name default fact
* Add puppet-masterless test for packer_builder_type default fact
* Add puppet-server test for puppet bin directory

provisioner/puppet-masterless/provisioner_test.go

@@ -203,6 +203,14 @@ func TestProvisionerPrepare_facterFacts(t *testing.T) {
 	if p.config.Facter == nil {
 		t.Fatalf("err: Default facts are not set in the Puppet provisioner!")
 	}
+
+	if _, ok := p.config.Facter["packer_build_name"]; !ok {
+		t.Fatalf("err: packer_build_name fact not set in the Puppet provisioner!")
+	}
+
+	if _, ok := p.config.Facter["packer_builder_type"]; !ok {
+		t.Fatalf("err: packer_builder_type fact not set in the Puppet provisioner!")
+	}
 }
 
 func TestProvisionerPrepare_extraArguments(t *testing.T) {

provisioner/puppet-server/provisioner_test.go

@@ -26,6 +26,31 @@ func TestProvisioner_Impl(t *testing.T) {
 	}
 }
 
+func TestProvisionerPrepare_puppetBinDir(t *testing.T) {
+	config := testConfig()
+
+	delete(config, "puppet_bin_dir")
+	p := new(Provisioner)
+	err := p.Prepare(config)
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
+
+	// Test with a good one
+	tf, err := ioutil.TempFile("", "packer")
+	if err != nil {
+		t.Fatalf("error tempfile: %s", err)
+	}
+	defer os.Remove(tf.Name())
+
+	config["puppet_bin_dir"] = tf.Name()
+	p = new(Provisioner)
+	err = p.Prepare(config)
+	if err != nil {
+		t.Fatalf("err: %s", err)
+	}
+}
+
 func TestProvisionerPrepare_clientPrivateKeyPath(t *testing.T) {
 	config := testConfig()