1 files changed, 36 insertions, 0 deletions
diff --git a/spec/unit/parser/ast/minus.rb b/spec/unit/parser/ast/minus.rb
new file mode 100755
index 000000000..83bd92d0d
--- /dev/null
+++ b/spec/unit/parser/ast/minus.rb
@@ -0,0 +1,36 @@
+#!/usr/bin/env ruby
+
+require File.dirname(__FILE__) + '/../../../spec_helper'
+
+describe Puppet::Parser::AST::Minus do
+    before :each do
+        @scope = Puppet::Parser::Scope.new()
+    end
+
+    it "should evaluate its argument" do
+        value = stub "value"
+        value.expects(:safeevaluate).with(@scope).returns(123)
+        
+        operator = Puppet::Parser::AST::Minus.new :value => value
+        operator.evaluate(@scope)
+    end
+
+    it "should fail if argument is not a string or integer" do
+        array_ast = stub 'array_ast', :safeevaluate => [2]
+        operator = Puppet::Parser::AST::Minus.new :value => array_ast
+        lambda { operator.evaluate(@scope) }.should raise_error
+    end
+
+    it "should work with integer as string" do
+        string = stub 'string', :safeevaluate => "123"
+        operator = Puppet::Parser::AST::Minus.new :value => string
+        operator.evaluate(@scope).should == -123
+    end
+
+    it "should work with integers" do
+        int = stub 'int', :safeevaluate => 123
+        operator = Puppet::Parser::AST::Minus.new :value => int
+        operator.evaluate(@scope).should == -123
+    end
+
+end