Add Pointer#write_bytes spec

1 files changed, 37 insertions, 0 deletions

diff --git a/spec/ffi/buffer_spec.rb b/spec/ffi/buffer_spec.rb
index 096d44a..d87d618 100644
--- a/spec/ffi/buffer_spec.rb
+++ b/spec/ffi/buffer_spec.rb
@@ -171,6 +171,43 @@ describe "Reading/Writing binary strings" do
     str = "hello\0world"
     buf = FFI::Buffer.new 1024
     lambda { buf.put_bytes(0, str, -1, 12); }.should raise_error
+   end
+
+  it "Buffer#write_bytes" do
+    str = "hello\0world"
+    buf = FFI::Buffer.new 1024
+    buf.write_bytes(str)
+    s2 = buf.get_bytes(0, 11)
+    s2.should eq str
+  end
+  it "Buffer#write_bytes with index and length" do
+    str = "hello\0world"
+    buf = FFI::Buffer.new 1024
+    buf.write_bytes(str, 5, 6)
+    s2 = buf.get_bytes(0, 6)
+    s2.should eq str[5..-1]
+  end
+  it "Buffer#write_bytes with only index" do
+    str = "hello\0world"
+    buf = FFI::Buffer.new 1024
+    buf.write_bytes(str, 5)
+    s2 = buf.get_bytes(0, 6)
+    s2.should eq str[5..-1]
+  end
+  it "Buffer#write_bytes with index > str.length" do
+    str = "hello\0world"
+    buf = FFI::Buffer.new 1024
+    lambda { buf.write_bytes(str, 12) }.should raise_error
+  end
+  it "Buffer#put_bytes with length > str.length" do
+    str = "hello\0world"
+    buf = FFI::Buffer.new 1024
+    lambda { buf.put_bytes(0, str, 0, 12) }.should raise_error
+  end
+   it "Buffer#write_bytes with negative index" do
+    str = "hello\0world"
+    buf = FFI::Buffer.new 1024
+    lambda { buf.write_bytes(str, -1, 12) }.should raise_error
   end
 end
 describe "Reading/Writing ascii strings" do