tests fix

apps/block_scout_web/lib/block_scout_web/views/layout_view.ex

@@ -79,10 +79,10 @@ defmodule BlockScoutWeb.LayoutView do
   def release_link(version) do
     release_link = Application.get_env(:block_scout_web, :release_link)
 
-    if String.length(release_link) > 0 do
-      _version_link = html_escape({:safe, "<a href=\"#{release_link}\" target=\"_blank\">#{version}</a>"})
-    else
+    if release_link == "" || release_link == nil do
       _version_link = version
+    else
+      _version_link = html_escape({:safe, "<a href=\"#{release_link}\" target=\"_blank\">#{version}</a>"})
     end
   end
 

apps/block_scout_web/test/block_scout_web/views/layout_view_test.exs

@@ -62,22 +62,25 @@ defmodule BlockScoutWeb.LayoutViewTest do
   end
 
   describe "release_link/1" do
-    test "use the enviroment release link when it's configured" do
-      Application.put_env(:block_scout_web, BlockScoutWeb.Chain, version: "1.3.4")
-
-      Application.put_env(:block_scout_web, BlockScoutWeb.Chain,
-        release_link: "https://github.com/poanetwork/blockscout/releases/tag/v1.3.4-beta"
-      )
+    test "use the version when there is no release_link env configured for it" do
+      Application.put_env(:block_scout_web, :release_link, nil)
 
-      assert LayoutView.release_link("1.3.4") ==
-               ~s(<a href="https://github.com/poanetwork/blockscout/releases/tag/v1.3.4-beta" target="_blank">v1.3.4</a>)
+      assert LayoutView.release_link("1.3.4") == "1.3.4"
     end
 
-    test "use the version when there is no release_link env configured for it" do
-      Application.put_env(:block_scout_web, BlockScoutWeb.Chain, version: "1.3.4")
-      Application.put_env(:block_scout_web, BlockScoutWeb.Chain, release_link: "")
+    test "use the version when empty release_link env configured for it" do
+      Application.put_env(:block_scout_web, :release_link, "")
 
       assert LayoutView.release_link("1.3.4") == "1.3.4"
     end
+
+    test "use the enviroment release link when it's configured" do
+      Application.put_env(:block_scout_web, :release_link,
+        "https://github.com/poanetwork/blockscout/releases/tag/v1.3.4-beta"
+      )
+
+      assert LayoutView.release_link("1.3.4") ==
+               {:safe, ~s(<a href="https://github.com/poanetwork/blockscout/releases/tag/v1.3.4-beta" target="_blank">1.3.4</a>)}
+    end
   end
 end