test_iseq_load: expand tests with stack mismatches

We can ensure the loader works for these cases even if the
reoptimized bytecode is not a match for the original.

* test/-ext-/iseq_load/test_iseq_load.rb
  (test_next_in_block_in_block): test using ISeq#eval
  (test_break_ensure): ditto
  [ruby-core:66988]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49044 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Sun Dec 28 18:19:28 2014  Eric Wong  <e@80x24.org>
+
+	* test/-ext-/iseq_load/test_iseq_load.rb
+	  (test_next_in_block_in_block): test using ISeq#eval
+	  (test_break_ensure): ditto
+	  [ruby-core:66988]
+
 Sun Dec 28 16:25:12 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* cygwin/GNUmakefile.in (EXTOBJS): override to add resource files

test/-ext-/iseq_load/test_iseq_load.rb

@@ -52,16 +52,21 @@ class TestIseqLoad < Test::Unit::TestCase
   end
 
   def test_next_in_block_in_block
-    skip "failing due to stack_max mismatch"
-    assert_iseq_roundtrip <<-'end;'
-      3.times { 3.times { next } }
+    @next_broke = false
+    src = <<-'end;'
+      3.times { 3.times { next; @next_broke = true } }
     end;
+    a = ISeq.compile(src).to_a
+    iseq = ISeq.iseq_load(a)
+    iseq.eval
+    assert_equal false, @next_broke
+    skip "failing due to stack_max mismatch"
+    assert_iseq_roundtrip(src)
   end
 
   def test_break_ensure
-    skip "failing due to exception entry sp mismatch"
-    assert_iseq_roundtrip <<-'end;'
-      def m
+    src = <<-'end;'
+      def test_break_ensure_def_method
         bad = true
         while true
           begin
@@ -70,8 +75,15 @@ class TestIseqLoad < Test::Unit::TestCase
             bad = false
           end
         end
+        bad
       end
     end;
+    a = ISeq.compile(src).to_a
+    iseq = ISeq.iseq_load(a)
+    iseq.eval
+    assert_equal false, test_break_ensure_def_method
+    skip "failing due to exception entry sp mismatch"
+    assert_iseq_roundtrip(src)
   end
 
   # FIXME: still failing