From d7cb352e272dca15497e425996471f9dd5832d3b Mon Sep 17 00:00:00 2001
From: Davy Malone <david.malone@intercom.io>
Date: Tue, 27 Sep 2022 18:55:37 +0100
Subject: [PATCH] Allow nested arrays

---
 lib/intercom/lib/flat_store.rb            | 2 +-
 spec/unit/intercom/lib/flat_store_spec.rb | 9 ++++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/intercom/lib/flat_store.rb b/lib/intercom/lib/flat_store.rb
index 6971ca75..08c30832 100644
--- a/lib/intercom/lib/flat_store.rb
+++ b/lib/intercom/lib/flat_store.rb
@@ -23,7 +23,7 @@ def [](key)
 
       private
       def validate_key_and_value(key, value)
-        raise ArgumentError.new("This does not support nested data structures (key: #{key}, value: #{value}") if value.is_a?(Array) || value.is_a?(Hash)
+        raise ArgumentError.new("This does not support nested hashes (key: #{key}, value: #{value}") if value.is_a?(Hash)
         raise ArgumentError.new("Key must be String or Symbol: #{key}") unless key.is_a?(String) || key.is_a?(Symbol)
       end
     end
diff --git a/spec/unit/intercom/lib/flat_store_spec.rb b/spec/unit/intercom/lib/flat_store_spec.rb
index 3188b579..762766cf 100644
--- a/spec/unit/intercom/lib/flat_store_spec.rb
+++ b/spec/unit/intercom/lib/flat_store_spec.rb
@@ -5,7 +5,6 @@
 describe Intercom::Lib::FlatStore do
   it 'raises if you try to set or merge in nested hash structures' do
     data = Intercom::Lib::FlatStore.new
-    _(proc { data['thing'] = [1] }).must_raise ArgumentError
     _(proc { data['thing'] = { 1 => 2 } }).must_raise ArgumentError
     _(proc { Intercom::Lib::FlatStore.new(1 => { 2 => 3 }) }).must_raise ArgumentError
   end
@@ -19,13 +18,21 @@
     data = Intercom::Lib::FlatStore.new
     data['a'] = 1
     data[:b] = 2
+    data['array'] = [1]
+    data[:another_array] = [2]
     _(data[:a]).must_equal 1
     _(data['b']).must_equal 2
     _(data[:b]).must_equal 2
+    _(data[:array]).must_equal [1]
+    _(data['another_array']).must_equal [2]
     data = Intercom::Lib::FlatStore.new('a' => 1, :b => 2)
     _(data['a']).must_equal 1
     _(data[:a]).must_equal 1
     _(data['b']).must_equal 2
     _(data[:b]).must_equal 2
+    _(data[:array]).must_equal [1]
+    _(data['array']).must_equal [1]
+    _(data[:another_array]).must_equal [2]
+    _(data['another_array']).must_equal [2]
   end
 end