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-rw-r--r--lib/puppet/parser/functions/delete.rb2
-rwxr-xr-xspec/unit/puppet/parser/functions/delete_spec.rb18
2 files changed, 19 insertions, 1 deletions
diff --git a/lib/puppet/parser/functions/delete.rb b/lib/puppet/parser/functions/delete.rb
index f814344..d03a293 100644
--- a/lib/puppet/parser/functions/delete.rb
+++ b/lib/puppet/parser/functions/delete.rb
@@ -27,7 +27,7 @@ string, or key from a hash.
"given #{arguments.size} for 2.")
end
- collection = arguments[0]
+ collection = arguments[0].dup
item = arguments[1]
case collection
diff --git a/spec/unit/puppet/parser/functions/delete_spec.rb b/spec/unit/puppet/parser/functions/delete_spec.rb
index 2f29c93..06238f1 100755
--- a/spec/unit/puppet/parser/functions/delete_spec.rb
+++ b/spec/unit/puppet/parser/functions/delete_spec.rb
@@ -35,4 +35,22 @@ describe "the delete function" do
result.should(eq({ 'a' => 1, 'c' => 3 }))
end
+ it "should not change origin array passed as argument" do
+ origin_array = ['a','b','c','d']
+ result = scope.function_delete([origin_array, 'b'])
+ origin_array.should(eq(['a','b','c','d']))
+ end
+
+ it "should not change the origin string passed as argument" do
+ origin_string = 'foobarbabarz'
+ result = scope.function_delete([origin_string,'bar'])
+ origin_string.should(eq('foobarbabarz'))
+ end
+
+ it "should not change origin hash passed as argument" do
+ origin_hash = { 'a' => 1, 'b' => 2, 'c' => 3 }
+ result = scope.function_delete([origin_hash, 'b'])
+ origin_hash.should(eq({ 'a' => 1, 'b' => 2, 'c' => 3 }))
+ end
+
end