Override the #to_yaml method for ImmutableMash & ImmutableArray

 - Psych module to_yaml not working as expected for ImmutableMash & ImmutableArray.
 - So parse first to Hash/Array then convert it to YAML formatted string.

Signed-off-by: Vivek Singh <vivek.singh@msystechnologies.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/chef/node/immutable_collections.rb b/lib/chef/node/immutable_collections.rb
index b4a7a39ba0..96e589fdaa 100644
--- a/lib/chef/node/immutable_collections.rb
+++ b/lib/chef/node/immutable_collections.rb
@@ -96,6 +96,12 @@ class Chef
 
       alias_method :to_array, :to_a
 
+      # As Psych module, not respecting Immutable ImmutableArray object
+      # So first convert it to Hash/Array then parse it to `.to_yaml`
+      def to_yaml(*opts)
+        to_a.to_yaml(*opts)
+      end
+
       private
 
       # needed for __path__
@@ -168,6 +174,12 @@ class Chef
 
       alias_method :to_hash, :to_h
 
+      # As Psych module, not respecting ImmutableMash object
+      # So first convert it to Hash/Array then parse it to `.to_yaml`
+      def to_yaml(*opts)
+        to_h.to_yaml(*opts)
+      end
+
       # For elements like Fixnums, true, nil...
       def safe_dup(e)
         e.dup