Add match_json_values and use in AP worker specs (#30720)

spec/support/matchers/json/match_json_schema.rb

@@ -6,3 +6,14 @@ RSpec::Matchers.define :match_json_schema do |schema|
     JSON::Validator.validate(schema_path, input_json, validate_schema: true)
   end
 end
+
+RSpec::Matchers.define :match_json_values do |values|
+  match do |string|
+    expect(json_str_to_hash(string))
+      .to include(values)
+  end
+
+  failure_message do |value|
+    "expected that #{value} would have the same values as #{values}."
+  end
+end