Tests: restructure to more closely mirror the sources

t/ had lots of directories and files mirroring src/lib/Hydra. This moves
those files under t/Hydra

t/Hydra/Helper/CatalystUtils.t

@@ -0,0 +1,28 @@
+use strict;
+use warnings;
+use Setup;
+use Test2::V0;
+use Hydra::Helper::CatalystUtils;
+
+subtest "trim" => sub {
+    my %values = (
+        "" => "",
+        "🌮" => '🌮',
+        " 🌮" => '🌮',
+        "🌮 " => '🌮',
+        " 🌮 " => '🌮',
+        "\n🌮 " => '🌮',
+        "\n\t🌮\n\n\t" => '🌮',
+    );
+
+    for my $input (keys %values) {
+        my $value = $values{$input};
+        is(trim($input), $value, "Trim the value: " . $input);
+    }
+
+    my $uninitialized;
+
+    is(trim($uninitialized), '', "Trimming an uninitialized value");
+};
+
+done_testing;