Fix serialization error when \n new lines are present

demo.rb

@@ -178,6 +178,11 @@
       expect("\"Hello, ---world\"").to match("Hello, world")
     end
 
+    it "strings with newlines" do
+      output = "\"l appears 1 times\"\n\"o appears 2 times\"\n\"o appears 2 times\"\n\"p appears 1 times\""
+      expect(output).to match("\"l appears 1 times\"\n\"o appears 2 times\"\n\"e appears 1 times\"\n\"p appears 1 times\"")
+    end
+
     # Change Matchers
     it "change" do
       x = 5
@@ -396,7 +401,7 @@ def initialize
       "Truthiness Matchers" => ["be_truthy", "be_falsey / be_falsy", "be_nil"],
       "Predicate Matchers" => ["be_empty", "have_key"],
       "Collection Matchers" => ["include", "include with multiple items", "include with hash", "start_with", "end_with", "match (regex)", "match (regex) with custom message", "contain_exactly", "match_array", "all"],
-      "String Matchers" => ["match with string", "unescaping quotes in actual"],
+      "String Matchers" => ["match with string", "unescaping quotes in actual", "strings with newlines"],
       "Change Matchers" => ["change", "change by", "change by_at_least", "change by_at_most"],
       "Output Matchers" => ["output to stdout", "output to stderr"],
       "Exception Matchers" => ["raise_error", "raise_error with message", "raise_error when none raised", "unexpected exception (outside expect block)"],

lib/rspec/enriched_json/expectation_helper_wrapper.rb

@@ -85,7 +85,15 @@ def truncate_string(str)
 
         def unescape_string_double_quotes(str)
           if str.start_with?('"') && str.end_with?('"')
-            return str.undump
+            begin
+              # Only undump if it's a valid dumped string
+              # Check if the string is properly escaped by attempting undump
+              str.undump
+            rescue RuntimeError => e
+              # If undump fails, just return the original string
+              # This handles cases where the string has quotes but isn't a valid dump format
+              str
+            end
           else
             str
           end

lib/rspec/enriched_json/version.rb

@@ -2,6 +2,6 @@
 
 module RSpec
   module EnrichedJson
-    VERSION = "0.6.1"
+    VERSION = "0.6.2"
   end
 end

spec/edge_cases_spec.rb

@@ -76,4 +76,31 @@ def to_s
       expect(e.details[:expected]["to_s"]).to eq("age")
     end
   end
+
+  context "handling strings with newlines" do
+    it "handles strings with embedded newlines and quotes" do
+      # This was causing "invalid dumped string" errors before the fix
+      output = "\"l appears 1 times\"\n\"o appears 2 times\"\n\"o appears 2 times\"\n\"p appears 1 times\""
+      expected = "\"l appears 1 times\"\n\"o appears 2 times\"\n\"e appears 1 times\"\n\"p appears 1 times\""
+
+      expect(output).to eq(expected)
+    rescue RSpec::EnrichedJson::EnrichedExpectationNotMetError => e
+      # Verify the strings are properly serialized without undump errors
+      expect(e.details[:actual]).to be_a(String)
+      expect(e.details[:expected]).to be_a(String)
+
+      # The actual should contain the newlines (actual newlines, not escaped)
+      expect(e.details[:actual]).to include("\n")
+      expect(e.details[:actual]).to include("l appears 1 times")
+      expect(e.details[:actual]).to include("o appears 2 times")
+
+      # The expected should also be properly serialized
+      expect(e.details[:expected]).to include("\n")
+      expect(e.details[:expected]).to include("e appears 1 times")
+
+      # Should not have serialization errors
+      expect(e.details[:actual]).not_to be_a(Hash)
+      expect(e.details[:actual]).not_to include("serialization_error")
+    end
+  end
 end