test/test-chunked-array.rb in red-arrow-11.0.0 vs test/test-chunked-array.rb in red-arrow-12.0.0

@@ -184,6 +184,15 @@
   test("#cast") do
     chunked_array = Arrow::ChunkedArray.new([[1, nil, 3]])
     assert_equal(Arrow::ChunkedArray.new([["1", nil, "3"]]),
                  chunked_array.cast(:string))
   end
+
+  test("#index") do
+    arrays = [
+      Arrow::Int32Array.new([1, 2]),
+      Arrow::Int32Array.new([3, 4, 5]),
+    ]
+    chunked_array = Arrow::ChunkedArray.new(arrays)
+    assert_equal(2, chunked_array.index(3))
+  end
 end