Enable num2bool to accept numeric input

Also ignore rspec fixtures directory

.gitignore

@@ -2,6 +2,7 @@ pkg/
 .DS_Store
 metadata.json
 coverage/
+spec/fixtures/
 Gemfile.lock
 .bundle/
 vendor/bundle/

lib/puppet/parser/functions/num2bool.rb

@@ -14,7 +14,8 @@ higher then 0 become true.
     raise(Puppet::ParseError, "num2bool(): Wrong number of arguments " +
       "given (#{arguments.size} for 1)") if arguments.size < 1
 
-    number = arguments[0]
+    # Since we're matching against a regex, coerce to String
+    number = arguments[0].to_s
 
     # Only numbers allowed ...
     unless number.match(/^\-?\d+$/)

spec/unit/puppet/parser/functions/num2bool_spec.rb

@@ -12,13 +12,33 @@ describe "the num2bool function" do
     lambda { scope.function_num2bool([]) }.should( raise_error(Puppet::ParseError))
   end
 
-  it "should return true if 1" do
+  it "should return true if passed string 1" do
     result = scope.function_num2bool(["1"])
     result.should(be_true)
   end
 
-  it "should return false if 0" do
+  it "should return true if passed number 1" do
+    result = scope.function_num2bool([1])
+    result.should(be_true)
+  end
+
+  it "should return false if passed string 0" do
     result = scope.function_num2bool(["0"])
     result.should(be_false)
   end
+
+  it "should return false if passed number 0" do
+    result = scope.function_num2bool([0])
+    result.should(be_false)
+  end
+
+  it "should return false if passed string -1" do
+    result = scope.function_num2bool(["-1"])
+    result.should(be_false)
+  end
+
+  it "should return false if passed number -1" do
+    result = scope.function_num2bool([-1])
+    result.should(be_false)
+  end
 end