instance.reachable?: Limit to binary input

2 files changed, 4 insertions, 4 deletions

diff --git a/lib/pleroma/instances/instance.ex b/lib/pleroma/instances/instance.ex
index c9ca3aac7..2e1696fe2 100644
--- a/lib/pleroma/instances/instance.ex
+++ b/lib/pleroma/instances/instance.ex
@@ -77,7 +77,7 @@ defmodule Pleroma.Instances.Instance do
     )
   end
 
-  def reachable?(_), do: true
+  def reachable?(url_or_host) when is_binary(url_or_host), do: true
 
   def set_reachable(url_or_host) when is_binary(url_or_host) do
     with host <- host(url_or_host),
diff --git a/test/pleroma/instances_test.exs b/test/pleroma/instances_test.exs
index d2618025c..5d0ce6237 100644
--- a/test/pleroma/instances_test.exs
+++ b/test/pleroma/instances_test.exs
@@ -32,9 +32,9 @@ defmodule Pleroma.InstancesTest do
       assert Instances.reachable?(URI.parse(url).host)
     end
 
-    test "returns true on non-binary input" do
-      assert Instances.reachable?(nil)
-      assert Instances.reachable?(1)
+    test "raises FunctionClauseError exception on non-binary input" do
+      assert_raise FunctionClauseError, fn -> Instances.reachable?(nil) end
+      assert_raise FunctionClauseError, fn -> Instances.reachable?(1) end
     end
   end