(maint) Memoize scope in domain_name spec

This is an opportunity improvement since I'm in the code.  Get rid of
instance variables in the spec test and replace them with a memo let
method block.

1 files changed, 9 insertions, 12 deletions

diff --git a/spec/unit/puppet/parser/functions/is_domain_name_spec.rb b/spec/unit/puppet/parser/functions/is_domain_name_spec.rb
index ec7c7f5..b419231 100644
--- a/spec/unit/puppet/parser/functions/is_domain_name_spec.rb
+++ b/spec/unit/puppet/parser/functions/is_domain_name_spec.rb
@@ -6,51 +6,48 @@ describe "the is_domain_name function" do
     Puppet::Parser::Functions.autoloader.loadall
   end
 
-  before :each do
-    @scope = Puppet::Parser::Scope.new
-  end
+  let(:scope) { Puppet::Parser::Scope.new }
 
   it "should exist" do
     Puppet::Parser::Functions.function("is_domain_name").should == "function_is_domain_name"
   end
 
   it "should raise a ParseError if there is less than 1 arguments" do
-    lambda { @scope.function_is_domain_name([]) }.should( raise_error(Puppet::ParseError))
+    lambda { scope.function_is_domain_name([]) }.should( raise_error(Puppet::ParseError))
   end
 
   it "should return true if a valid domain name" do
-    result = @scope.function_is_domain_name(["foo.bar.com"])
+    result = scope.function_is_domain_name(["foo.bar.com"])
     result.should(be_true)
   end
 
   it "should allow domain parts to start with numbers" do
-    result = @scope.function_is_domain_name(["3foo.2bar.com"])
+    result = scope.function_is_domain_name(["3foo.2bar.com"])
     result.should(be_true)
   end
 
   it "should allow domain to end with a dot" do
-    result = @scope.function_is_domain_name(["3foo.2bar.com."])
+    result = scope.function_is_domain_name(["3foo.2bar.com."])
     result.should(be_true)
   end
 
   it "should allow a single part domain" do
-    result = @scope.function_is_domain_name(["orange"])
+    result = scope.function_is_domain_name(["orange"])
     result.should(be_true)
   end
 
   it "should return false if domain parts start with hyphens" do
-    result = @scope.function_is_domain_name(["-3foo.2bar.com"])
+    result = scope.function_is_domain_name(["-3foo.2bar.com"])
     result.should(be_false)
   end
 
   it "should return true if domain contains hyphens" do
-    result = @scope.function_is_domain_name(["3foo-bar.2bar-fuzz.com"])
+    result = scope.function_is_domain_name(["3foo-bar.2bar-fuzz.com"])
     result.should(be_true)
   end
 
   it "should return false if domain name contains spaces" do
-    result = @scope.function_is_domain_name(["not valid"])
+    result = scope.function_is_domain_name(["not valid"])
     result.should(be_false)
   end
-
 end