* test/ruby/test_string.rb: add tests to achieve over 90% test

  coverage of string.c.

* test/ruby/test_m17n.rb: ditto.

* test/ruby/test_symbol.rb: ditto.

* test/ruby/test_pack.rb: ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@16427 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 0 deletions

diff --git a/test/ruby/test_pack.rb b/test/ruby/test_pack.rb
index 85d0b7cdfa..b388937578 100644
--- a/test/ruby/test_pack.rb
+++ b/test/ruby/test_pack.rb
@@ -63,6 +63,7 @@ class TestPack < Test::Unit::TestCase
     assert_equal a, a.pack("P").unpack("P*")
     assert_equal "a", a.pack("P").unpack("P")[0]
     assert_equal a, a.pack("P").freeze.unpack("P*")
+    assert_raise(ArgumentError) { (a.pack("P") + "").unpack("P*") }
   end
 
   def test_pack_p
@@ -70,6 +71,7 @@ class TestPack < Test::Unit::TestCase
     assert_equal a, a.pack("p").unpack("p*")
     assert_equal a[0], a.pack("p").unpack("p")[0]
     assert_equal a, a.pack("p").freeze.unpack("p*")
+    assert_raise(ArgumentError) { (a.pack("p") + "").unpack("p*") }
   end
 
   def test_format_string_modified
@@ -429,4 +431,14 @@ class TestPack < Test::Unit::TestCase
     assert_equal([0xffffffff], "\217\377\377\377\177".unpack("w"), [0xffffffff])
     assert_equal([0x100000000], "\220\200\200\200\000".unpack("w"), [0x100000000])
   end
+
+  def test_modify_under_safe4
+    s = "foo"
+    assert_raise(SecurityError) do
+      Thread.new do
+        $SAFE = 4
+        s.clear
+      end.join
+    end
+  end
 end