Add OpProto unittest.

paddle/framework/CMakeLists.txt

@@ -5,4 +5,6 @@ nv_test(dim_test SRCS dim_test.cu DEPS ddim)
 cc_test(variable_test SRCS variable_test.cc)
 cc_test(scope_test SRCS scope_test.cc)
 cc_test(enforce_test SRCS enforce_test.cc)
-proto_library(op_proto SRCS op_proto.proto attr_type.proto)
+proto_library(attr_type SRCS attr_type.proto)
+proto_library(op_proto SRCS op_proto.proto)
+cc_test(op_proto_test SRCS op_proto_test.cc DEPS attr_type op_proto protobuf)

paddle/framework/op_proto_test.cc

+#include <gtest/gtest.h>
+#include <paddle/framework/op_proto.pb.h>
+
+TEST(TestOpProto, ALL) {
+  paddle::framework::OpProto proto;
+  {
+    auto ipt = proto.mutable_inputs()->Add();
+    *ipt->mutable_name() = "a";
+    *ipt->mutable_comment() = "the one input of cosine op";
+  }
+  {
+    auto ipt = proto.mutable_inputs()->Add();
+    *ipt->mutable_name() = "b";
+    *ipt->mutable_comment() = "the other input of cosine op";
+  }
+  {
+    auto opt = proto.mutable_outputs()->Add();
+    *opt->mutable_name() = "output";
+    *opt->mutable_comment() = "the output of cosine op";
+  }
+  {
+    auto attr = proto.mutable_attrs()->Add();
+    *attr->mutable_name() = "scale";
+    attr->set_type(paddle::framework::AttrType::FLOAT);
+    *attr->mutable_comment() = "the scale attribute of cosine op";
+  }
+  proto.set_type("cos");
+  *proto.mutable_comment() = "cosine op, output = scale * cos(a, b)";
+
+  ASSERT_TRUE(proto.IsInitialized());
+}
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