fix test

Author: mitchellhenke

test/mix/sentry.send_test_event_test.exs

@@ -48,14 +48,19 @@ defmodule Mix.Tasks.Sentry.SendTestEventTest do
     """
   end
 
-  test "handles :error when Sentry server is unreachable" do
-    modify_env(:sentry, [dsn: "http://public:secret@localhost:0/1"])
+  test "handles :error when Sentry server is failing" do
+    bypass = Bypass.open
+    Bypass.expect bypass, fn conn ->
+      {:ok, _body, conn} = Plug.Conn.read_body(conn)
+      Plug.Conn.resp(conn, 500, ~s<{"id": "340"}>)
+    end
+    modify_env(:sentry, [dsn: "http://public:secret@localhost:#{bypass.port}/1"])
     assert capture_log(fn ->
       assert capture_io(fn ->
         Mix.Tasks.Sentry.SendTestEvent.run([])
       end) == """
       Client configuration:
-      server: http://localhost:0/api/1/store/
+      server: http://localhost:#{bypass.port}/api/1/store/
       public_key: public
       secret_key: secret
       included_environments: [:test]