1 files changed, 41 insertions, 0 deletions
diff --git a/test/ruby/test_io_buffer.rb b/test/ruby/test_io_buffer.rb
index 327a3ece9c..fdf99589ef 100644
--- a/test/ruby/test_io_buffer.rb
+++ b/test/ruby/test_io_buffer.rb
@@ -242,6 +242,16 @@ class TestIOBuffer < Test::Unit::TestCase
     end
   end
 
+  def test_resize_invalidated_slice
+    inner = IO::Buffer.new(IO::Buffer::PAGE_SIZE)
+    slice = inner.slice(0, 8)
+    inner.free
+
+    assert_raise(IO::Buffer::InvalidatedError) do
+      slice.resize(16)
+    end
+  end
+
   def test_compare_same_size
     buffer1 = IO::Buffer.new(1)
     assert_equal buffer1, buffer1
@@ -376,6 +386,17 @@ class TestIOBuffer < Test::Unit::TestCase
     assert_raise_with_message(ArgumentError, /Offset can't be negative/) do
       buffer.get_string(-1)
     end
+
+    encoding = Struct.new(:buffer) do
+      def to_str
+        buffer.free
+        "BINARY"
+      end
+    end.new(buffer.dup)
+    slice = encoding.buffer.slice(0, 8)
+    assert_raise(IO::Buffer::InvalidatedError) do
+      slice.get_string(0, 8, encoding)
+    end
   end
 
   def test_zero_length_get_string
@@ -449,6 +470,26 @@ class TestIOBuffer < Test::Unit::TestCase
     end
   end
 
+  def test_set_values_invalidated_slice
+    to_int = Struct.new(:buffer) do
+      def to_int
+        buffer.free
+        0x41
+      end
+    end
+    buffer = IO::Buffer.new(128)
+    slice = buffer.slice(0, 8)
+    value = to_int.new(buffer)
+    assert_raise(IO::Buffer::InvalidatedError) {slice.set_value(:U8, 0, value)}
+
+    buffer = IO::Buffer.new(128)
+    slice = buffer.slice(0, 8)
+    value = to_int.new(buffer)
+    assert_raise(IO::Buffer::InvalidatedError) {
+      slice.set_values([:U8, :U8], 0, [0, value])
+    }
+  end
+
   def test_zero_length_get_set_values
     buffer = IO::Buffer.new(0)