From b7500ec0d706a55b8fdb9543ed863f5798f8d0d8 Mon Sep 17 00:00:00 2001
From: Feng Ce <kalelfc@gmail.com>
Date: Sun, 28 Apr 2024 17:48:18 +0800
Subject: [PATCH 1/3] Update inspect method to handle nil serializable_hash

---
 lib/grape_entity/entity.rb | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/grape_entity/entity.rb b/lib/grape_entity/entity.rb
index 2728b9f..f2f6f94 100644
--- a/lib/grape_entity/entity.rb
+++ b/lib/grape_entity/entity.rb
@@ -472,8 +472,13 @@ def presented
 
     # Prevent default serialization of :options or :delegator.
     def inspect
-      fields = serializable_hash.map { |k, v| "#{k}=#{v}" }
-      "#<#{self.class.name}:#{object_id} #{fields.join(' ')}>"
+      hash = serializable_hash
+      if hash.nil?
+        "#<#{self.class.name}:#{object_id}> nil"
+      else
+        fields = object.map { |k, v| "#{k}=#{v}" }
+        "#<#{self.class.name}:#{object_id} #{fields.join(' ')}>"
+      end
     end
 
     def initialize(object, options = {})

From 7a44cb5189b2dacbe75d1cbea60573fed5e50bea Mon Sep 17 00:00:00 2001
From: Feng Ce <kalelfc@gmail.com>
Date: Mon, 29 Apr 2024 10:19:01 +0800
Subject: [PATCH 2/3] Refactor inspect method to use object instead of hash

---
 lib/grape_entity/entity.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/grape_entity/entity.rb b/lib/grape_entity/entity.rb
index f2f6f94..4b53224 100644
--- a/lib/grape_entity/entity.rb
+++ b/lib/grape_entity/entity.rb
@@ -472,8 +472,8 @@ def presented
 
     # Prevent default serialization of :options or :delegator.
     def inspect
-      hash = serializable_hash
-      if hash.nil?
+      object = serializable_hash
+      if object.nil?
         "#<#{self.class.name}:#{object_id}> nil"
       else
         fields = object.map { |k, v| "#{k}=#{v}" }

From a68b90d31ccc36b74b4a6445f4a22b81178d8937 Mon Sep 17 00:00:00 2001
From: Feng Ce <kalelfc@gmail.com>
Date: Mon, 6 May 2024 14:54:42 +0800
Subject: [PATCH 3/3] Add changelog and rspec

---
 CHANGELOG.md                     | 2 +-
 spec/grape_entity/entity_spec.rb | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e8d01b1..8135ea3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,7 @@
 #### Fixes
 
 * Your contribution here.
-
+* [#384](https://github.com/ruby-grape/grape-entity/pull/384): Fixed the `inspect` method to correctly handle nil values. - [@fcce](https://github.com/fcce).
 
 ### ### 1.0.1 (2024-04-10)
 
diff --git a/spec/grape_entity/entity_spec.rb b/spec/grape_entity/entity_spec.rb
index 466e4d7..6339ad4 100644
--- a/spec/grape_entity/entity_spec.rb
+++ b/spec/grape_entity/entity_spec.rb
@@ -1769,6 +1769,12 @@ class NoPathCharacterEntity < Grape::Entity
         expect(data).to_not include '@options'
         expect(data).to_not include '@delegator'
       end
+
+      it 'returns a nil string when subject is nil' do
+        data = subject.class.new(nil).inspect
+        expect(data).to include 'nil'
+      end
+
     end
 
     describe '#value_for' do