From 0ba89bf839a341a4a50c9f2264ddfa35e2207d08 Mon Sep 17 00:00:00 2001
From: micah-white <micahwhitecs@gmail.com>
Date: Tue, 9 May 2023 17:06:26 -0500
Subject: [PATCH] not working test

---
 cpp/src/arrow/scalar_test.cc | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/cpp/src/arrow/scalar_test.cc b/cpp/src/arrow/scalar_test.cc
index 5c0c0589934ec..f1700d2985188 100644
--- a/cpp/src/arrow/scalar_test.cc
+++ b/cpp/src/arrow/scalar_test.cc
@@ -1106,6 +1106,20 @@ class TestListScalar : public ::testing::Test {
     ASSERT_RAISES(Invalid, scalar.ValidateFull());
   }
 
+  void TestHashing() {
+    ListScalar scalar(ArrayFromJSON(int16(), "[1, 2, 3]"));
+    ASSERT_OK(scalar.ValidateFull());
+    ASSERT_TRUE(scalar.value->data()->buffers[0] == nullptr);
+    
+    auto data = scalar.value->data()->buffers[1];
+    std::vector<uint8_t> bitmap_data = {0,0,0};
+    auto null_bitmap = std::make_shared<Buffer>(bitmap_data.data(), 3);
+
+    std::shared_ptr<Int16Array> arr(new Int16Array(3, data, null_bitmap, 0));
+    ASSERT_TRUE(arr->null_count() == 0);
+    ASSERT_TRUE(arr->data()->buffers[0] != nullptr);
+  }
+
  protected:
   std::shared_ptr<DataType> type_;
   std::shared_ptr<Array> value_;
@@ -1119,6 +1133,8 @@ TYPED_TEST(TestListScalar, Basics) { this->TestBasics(); }
 
 TYPED_TEST(TestListScalar, ValidateErrors) { this->TestValidateErrors(); }
 
+TYPED_TEST(TestListScalar, TestHashing) { this->TestHashing(); }
+
 TEST(TestFixedSizeListScalar, ValidateErrors) {
   const auto ty = fixed_size_list(int16(), 3);
   FixedSizeListScalar scalar(ArrayFromJSON(int16(), "[1, 2, 5]"), ty);