Fix assumption Str.ords.iterator always…

…offers .count-only/.bool-only optimization methods.

S32-str/ords.t

@@ -1,5 +1,7 @@
 use v6;
+use lib $?FILE.IO.parent(2).add: 'packages';
 use Test;
+use Test::Util;
 plan 9;
 
 # L<S32::Str/Str/ords>
@@ -18,7 +20,7 @@ is ".\x[301]".ords, (46, 769), 'ords does not lose NFG synthetics (method)';
 
 # https://github.com/rakudo/rakudo/commit/8b7385d810
 subtest 'optimization coverage' => {
-    plan 7;
+    plan 4;
     my $s := "e\x[308]abc";
     my @ords := 235, 97, 98, 99;
 
@@ -27,37 +29,6 @@ subtest 'optimization coverage' => {
     is-deeply @target-s, [@ords], '.push-all (has chars)';
     is-deeply @target-e, [],      '.push-all (no chars)';
 
-    is-deeply +$s.ords, 4,     '.count-only (has chars)';
-    is-deeply +"".ords, 0,     '.count-only (no chars)';
-    is-deeply ?$s.ords, True,  '.bool-only (has chars)';
-    is-deeply ?"".ords, False, '.bool-only (no chars)';
-
-    with $s.ords.iterator -> \iter {
-        subtest 'partially-iterated iterator' => {
-            plan 17;
-
-            is-deeply iter.count-only, 4,        'count (1)';
-            is-deeply iter.bool-only,  True,     'bool  (1)';
-
-            is-deeply iter.pull-one,   @ords[0], 'char (2)';
-            is-deeply iter.count-only, 3,        'count (2)';
-            is-deeply iter.bool-only,  True,     'bool  (2)';
-
-            is-deeply iter.pull-one,   @ords[1], 'char (3)';
-            is-deeply iter.count-only, 2,        'count (3)';
-            is-deeply iter.bool-only,  True,     'bool  (3)';
-
-            is-deeply iter.pull-one,   @ords[2], 'char (4)';
-            is-deeply iter.count-only, 1,        'count (4)';
-            is-deeply iter.bool-only,  True,     'bool  (4)';
-
-            is-deeply iter.pull-one,   @ords[3], 'char (5)';
-            is-deeply iter.count-only, 0,        'count (5)';
-            is-deeply iter.bool-only,  False,    'bool  (5)';
-
-            ok iter.pull-one =:= IterationEnd,   'char (6)';
-            is-deeply iter.count-only, 0,        'count (6)';
-            is-deeply iter.bool-only,  False,    'bool  (6)';
-        }
-    }
+    test-iter-opt $s.ords.iterator, @ords, 'has chars';
+    test-iter-opt "".ords.iterator, (),    'no  chars';
 }