expose enable consolidation config

apps/explorer/lib/explorer/chain.ex

@@ -2079,6 +2079,11 @@ defmodule Explorer.Chain do
     TokenHoldersCounter.fetch(contract_address_hash)
   end
 
+  @spec token_holders_counter_consolidation_enabled? :: boolean()
+  def token_holders_counter_consolidation_enabled? do
+    TokenHoldersCounter.enable_consolidation?()
+  end
+
   @spec address_to_unique_tokens(Hash.Address.t(), [paging_options]) :: [TokenTransfer.t()]
   def address_to_unique_tokens(contract_address_hash, options \\ []) do
     paging_options = Keyword.get(options, :paging_options, @default_paging_options)

apps/explorer/lib/explorer/counters/token_holders_counter.ex

@@ -10,6 +10,11 @@ defmodule Explorer.Counters.TokenHoldersCounter do
 
   @table :token_holders_counter
 
+  # It is undesirable to automatically start the consolidation in all environments.
+  # Consider the test environment: if the consolidation initiates but does not
+  # finish before a test ends, that test will fail. This way, hundreds of
+  # tests were failing before disabling the consolidation and the scheduler in
+  # the test env.
   config = Application.get_env(:explorer, Explorer.Counters.TokenHoldersCounter)
   @enable_consolidation Keyword.get(config, :enable_consolidation)
 
@@ -94,15 +99,17 @@ defmodule Explorer.Counters.TokenHoldersCounter do
     {:noreply, state}
   end
 
-  # We don't want to automatically start the consolidation in all environments.
-  # Consider the test environment: if the consolidation initiates but does not
-  # finishes before a test ends, that test will fail. This way, hundreds o
-  # tests were failing before disabling the consolidation and the scheduler in
-  # the test env.
-  #
-  # In order to choose whether or not to enable the scheduler and the initial
-  # consolidation, change the following Explorer config:
-  #
-  # config :explorer, Explorer.Counters.TokenHoldersCounter, enable_consolidation: false
-  defp enable_consolidation?, do: @enable_consolidation
+  @doc """
+  Returns a boolean that indicates whether consolidation is enabled
+
+  In order to choose whether or not to enable the scheduler and the initial
+  consolidation, change the following Explorer config:
+
+  `config :explorer, Explorer.Counters.TokenHoldersCounter, enable_consolidation: true`
+
+  to:
+
+  `config :explorer, Explorer.Counters.TokenHoldersCounter, enable_consolidation: false`
+  """
+  def enable_consolidation?, do: @enable_consolidation
 end