Attempt to handle closed streams

What does this commit/MR/PR do?

- Attempt to handle closed streams

Why is this commit/MR/PR needed?

- A closed stream interrupts the type determination,
attempt to capture the error early into a Fastimage.Error{}

lib/fastimage.ex

@@ -202,6 +202,9 @@ defmodule Fastimage do
     else
       {:error, {:closed, :timeout}} = reason ->
         Error.exception(reason)
+
+      {:error, %Error{} = error} ->
+        {:error, error}
     end
   end
 

lib/fastimage/stream.ex

@@ -163,6 +163,13 @@ defmodule Fastimage.Stream do
         | stream_ref: stream_ref,
           stream_state: :processing
       })
+    else
+      {:error, {:closed, :timeout}} ->
+        reason = {:connection_closed_after_stream_timeout, acc}
+        {:error, Error.exception(reason)}
+
+      other ->
+        other
     end
   end
 

test/fastimage_test.exs

@@ -103,10 +103,6 @@ defmodule FastimageTest do
     assert list_results == list_expected_results(n)
   end
 
-  test "403 on remote file request returns error tuple" do
-    assert {:error, %Fastimage.Error{}} = Fastimage.type("http://httpstat.us/403")
-  end
-
   # private
 
   defp assert_size_and_type(input, expected_size, expected_type) do