1 files changed, 52 insertions, 0 deletions
diff --git a/test/dl/test_cptr.rb b/test/dl/test_cptr.rb
index 55a53f97d..4157f8336 100644
--- a/test/dl/test_cptr.rb
+++ b/test/dl/test_cptr.rb
@@ -29,5 +29,57 @@ module DL
 
       assert_equal free.ptr, ptr.free.ptr
     end
+
+    def test_null?
+      ptr = CPtr.new(0)
+      assert ptr.null?
+    end
+
+    def test_size
+      ptr = CPtr.malloc(4)
+      assert_equal 4, ptr.size
+      DL.free ptr.to_i
+    end
+
+    def test_size=
+      ptr = CPtr.malloc(4)
+      ptr.size = 10
+      assert_equal 10, ptr.size
+      DL.free ptr.to_i
+    end
+
+    def test_aref_aset
+      check = Proc.new{|str,ptr|
+        assert_equal(str.size(), ptr.size())
+        assert_equal(str, ptr.to_s())
+        assert_equal(str[0,2], ptr.to_s(2))
+        assert_equal(str[0,2], ptr[0,2])
+        assert_equal(str[1,2], ptr[1,2])
+        assert_equal(str[1,0], ptr[1,0])
+        assert_equal(str[0].ord, ptr[0])
+        assert_equal(str[1].ord, ptr[1])
+      }
+      str = 'abc'
+      ptr = CPtr[str]
+      check.call(str, ptr)
+
+      str[0] = "c"
+      assert_equal 'c'.ord, ptr[0] = "c".ord
+      check.call(str, ptr)
+
+      str[0,2] = "aa"
+      assert_equal 'aa', ptr[0,2] = "aa"
+      check.call(str, ptr)
+
+      ptr2 = CPtr['cdeeee']
+      str[0,2] = "cd"
+      assert_equal ptr2, ptr[0,2] = ptr2
+      check.call(str, ptr)
+
+      ptr3 = CPtr['vvvv']
+      str[0,2] = "vv"
+      assert_equal ptr3.to_i, ptr[0,2] = ptr3.to_i
+      check.call(str, ptr)
+    end
   end
 end