improve tests

Author: zeriyoshi

ext/random/tests/02_engine/pcg64.phpt renamed to ext/random/tests/02_engine/pcg64_seed.phpt

@@ -9,7 +9,9 @@ for ($i = 0; $i < 10000; $i++) {
     $engine->generate();
 }
 
+$engine->jump(1234567);
+
 echo \bin2hex($engine->generate());
 ?>
 --EXPECT--
-223f83060a787350
+17dc0f000c3d4967

ext/random/tests/02_engine/pcg64_value.phpt

@@ -9,7 +9,9 @@ for ($i = 0; $i < 10000; $i++) {
     $engine->generate();
 }
 
+$engine->jump();
+
 echo \bin2hex($engine->generate());
 ?>
 --EXPECT--
-9d932b4ba5427035
+33c167aa7ff25bbb

ext/random/tests/02_engine/xorshift128plus_value.phpt

@@ -9,7 +9,10 @@ for ($i = 0; $i < 10000; $i++) {
     $engine->generate();
 }
 
+$engine->jump();
+$engine->jumpLong();
+
 echo \bin2hex($engine->generate());
 ?>
 --EXPECT--
-7857d0659ea58de6
+1f197e9ca7969123