diff --git a/test/go/src/common/clientserver_test.go b/test/go/src/common/clientserver_test.go
index 8add041..3b512ad 100644
--- a/test/go/src/common/clientserver_test.go
+++ b/test/go/src/common/clientserver_test.go
@@ -92,6 +92,7 @@
 		handler.EXPECT().TestByte(int8(42)).Return(int8(42), nil),
 		handler.EXPECT().TestI32(int32(4242)).Return(int32(4242), nil),
 		handler.EXPECT().TestI64(int64(424242)).Return(int64(424242), nil),
+		// TODO: add TestBinary()
 		handler.EXPECT().TestDouble(float64(42.42)).Return(float64(42.42), nil),
 		handler.EXPECT().TestStruct(&thrifttest.Xtruct{StringThing: "thing", ByteThing: 42, I32Thing: 4242, I64Thing: 424242}).Return(&thrifttest.Xtruct{StringThing: "thing", ByteThing: 42, I32Thing: 4242, I64Thing: 424242}, nil),
 		handler.EXPECT().TestNest(&thrifttest.Xtruct2{StructThing: &thrifttest.Xtruct{StringThing: "thing", ByteThing: 42, I32Thing: 4242, I64Thing: 424242}}).Return(&thrifttest.Xtruct2{StructThing: &thrifttest.Xtruct{StringThing: "thing", ByteThing: 42, I32Thing: 4242, I64Thing: 424242}}, nil),
@@ -156,6 +157,8 @@
 		t.Errorf("Unexpected TestDouble() result expected 42.42, got %f ", d)
 	}
 
+	// TODO: add TestBinary() call
+	
 	xs := thrifttest.NewXtruct()
 	xs.StringThing = "thing"
 	xs.ByteThing = 42
diff --git a/test/go/src/common/mock_handler.go b/test/go/src/common/mock_handler.go
index d736ed9..8ef3b6e 100644
--- a/test/go/src/common/mock_handler.go
+++ b/test/go/src/common/mock_handler.go
@@ -70,6 +70,17 @@
 	return _mr.mock.ctrl.RecordCall(_mr.mock, "TestDouble", arg0)
 }
 
+func (_m *MockThriftTest) TestBinary(_param0 []byte) ([]byte, error) {
+	ret := _m.ctrl.Call(_m, "TestBinary", _param0)
+	ret0, _ := ret[0].([]byte)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+func (_mr *_MockThriftTestRecorder) TestBinary(arg0 interface{}) *gomock.Call {
+	return _mr.mock.ctrl.RecordCall(_mr.mock, "TestBinary", arg0)
+}
+
 func (_m *MockThriftTest) TestEnum(_param0 thrifttest.Numberz) (thrifttest.Numberz, error) {
 	ret := _m.ctrl.Call(_m, "TestEnum", _param0)
 	ret0, _ := ret[0].(thrifttest.Numberz)
diff --git a/test/go/src/common/printing_handler.go b/test/go/src/common/printing_handler.go
index 6cc1507..bed7086 100644
--- a/test/go/src/common/printing_handler.go
+++ b/test/go/src/common/printing_handler.go
@@ -22,6 +22,7 @@
 import (
 	"errors"
 	"fmt"
+	"encoding/hex"
 	. "gen/thrifttest"
 	"time"
 )
@@ -91,6 +92,17 @@
 	return thing, nil
 }
 
+// Prints 'testBinary("%s")' where '%s' is a hex-formatted string of thing's data
+// @param []byte thing - the binary to print
+// @return []byte - returns the binary 'thing'
+//
+// Parameters:
+//  - Thing
+func (p *printingHandler) TestBinary(thing []byte) (r []byte, err error) {
+	fmt.Printf("testBinary(%s)\n", hex.EncodeToString(thing))
+	return thing, nil
+}
+
 // Prints 'testStruct("{%s}")' where thing has been formatted into a string of comma separated values
 // @param Xtruct thing - the Xtruct to print
 // @return Xtruct - returns the Xtruct 'thing'
diff --git a/test/go/src/common/simple_handler.go b/test/go/src/common/simple_handler.go
index 433616d..97ff52d 100644
--- a/test/go/src/common/simple_handler.go
+++ b/test/go/src/common/simple_handler.go
@@ -53,6 +53,10 @@
 	return thing, nil
 }
 
+func (p *simpleHandler) TestBinary(thing []byte) (r []byte, err error) {
+	return thing, nil
+}
+
 func (p *simpleHandler) TestStruct(thing *Xtruct) (r *Xtruct, err error) {
 	return r, err
 }