fix: Fixed broken tests.

filters_test.nu

@@ -5,14 +5,31 @@ use std [assert];
 use ./ffmpeg.nu [complex-filter "parse filter"];
 use ./filters.nu [vloop];
 
-# #[test]
+def main [] {
+   let test_commands = (
+        scope commands
+            | where ($it.type == "custom")
+                and ($it.description | str starts-with "[test]")
+                and not ($it.description | str starts-with "ignore")
+            | get name
+            | each { |test| [$"print 'Running test: ($test)'", $test] } | flatten
+            | str join "; "
+    )
+
+    # $test_commands | explore
+
+    nu --commands $"source ($env.CURRENT_FILE); ($test_commands)"
+    print "Tests completed successfully"
+}
+
+#[test]
 def loop_has_defaults [] {
   let got = (vloop 10 1);
   let want = (complex-filter 'loop' { loop: 10 size: 1 });
   assert equal $got $want;
 }
 
-# #[test]
+#[test]
 def setting_time_sets_start_to-1 [] {
   let got = (vloop 10 1 -t 0.5);
   let want = (complex-filter 'loop' {