Fix tests attempt

Makefile

@@ -146,6 +146,7 @@ regenerate: install
 	make -C test/issue620 regenerate
 	make -C test/protobuffer regenerate
 	make -C test/issue630 regenerate
+	make -C test/testdata regenerate
 
 	make gofmt
 

test/testdata/Makefile

@@ -0,0 +1,30 @@
+# Protocol Buffers for Go with Gadgets
+#
+# Copyright (c) 2013, The GoGo Authors. All rights reserved.
+# http://github.com/cosmos/gogoproto
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+regenerate:
+	cd .. && (protoc --proto_path=../:../protobuf/:. --gogo_out=Mgoogle/protobuf/any.proto=github.com/cosmos/gogoproto/types/any:. testdata/testdata.proto)

test/testdata/animal.go

@@ -0,0 +1,84 @@
+package testdata
+
+// nolint
+
+import (
+	"fmt"
+	"github.com/cosmos/gogoproto/proto"
+	types "github.com/cosmos/gogoproto/types/any"
+)
+
+type Animal interface {
+	proto.Message
+
+	Greet() string
+}
+
+type Cartoon interface {
+	proto.Message
+
+	Identify() string
+}
+
+func (c *Cat) Greet() string {
+	return fmt.Sprintf("Meow, my name is %s", c.Moniker)
+}
+
+func (c *Bird) Identify() string {
+	return "This is Tweety."
+}
+
+func (d Dog) Greet() string {
+	return fmt.Sprintf("Roof, my name is %s", d.Name)
+}
+
+var _ types.UnpackInterfacesMessage = HasAnimal{}
+
+func (m HasAnimal) UnpackInterfaces(unpacker types.AnyUnpacker) error {
+	var animal Animal
+	return unpacker.UnpackAny(m.Animal, &animal)
+}
+
+type HasAnimalI interface {
+	TheAnimal() Animal
+}
+
+var _ HasAnimalI = &HasAnimal{}
+
+func (m HasAnimal) TheAnimal() Animal {
+	return m.Animal.GetCachedValue().(Animal)
+}
+
+type HasHasAnimalI interface {
+	TheHasAnimal() HasAnimalI
+}
+
+var _ HasHasAnimalI = &HasHasAnimal{}
+
+func (m HasHasAnimal) TheHasAnimal() HasAnimalI {
+	return m.HasAnimal.GetCachedValue().(HasAnimalI)
+}
+
+var _ types.UnpackInterfacesMessage = HasHasAnimal{}
+
+func (m HasHasAnimal) UnpackInterfaces(unpacker types.AnyUnpacker) error {
+	var animal HasAnimalI
+	return unpacker.UnpackAny(m.HasAnimal, &animal)
+}
+
+type HasHasHasAnimalI interface {
+	TheHasHasAnimal() HasHasAnimalI
+}
+
+var _ HasHasAnimalI = &HasHasAnimal{}
+
+func (m HasHasHasAnimal) TheHasHasAnimal() HasHasAnimalI {
+	return m.HasHasAnimal.GetCachedValue().(HasHasAnimalI)
+}
+
+var _ types.UnpackInterfacesMessage = HasHasHasAnimal{}
+
+func (m HasHasHasAnimal) UnpackInterfaces(unpacker types.AnyUnpacker) error {
+	var animal HasHasAnimalI
+	return unpacker.UnpackAny(m.HasHasAnimal, &animal)
+}