unittest: Fix and enable tfile_test

Signed-off-by: Stefan Weil <sw@weilnetz.de>

unittest/Makefile.am

@@ -71,6 +71,7 @@ check_PROGRAMS = \
   tablefind_test \
   tablerecog_test \
   tabvector_test \
+  tfile_test \
   tesseracttests
 
 TESTS = $(check_PROGRAMS)
@@ -139,6 +140,9 @@ tablerecog_test_LDADD = $(GTEST_LIBS) $(TESS_LIBS)
 tabvector_test_SOURCES = tabvector_test.cc
 tabvector_test_LDADD = $(GTEST_LIBS) $(TESS_LIBS)
 
+tfile_test_SOURCES = tfile_test.cc
+tfile_test_LDADD = $(GTEST_LIBS) $(TESS_LIBS)
+
 tesseracttests_SOURCES = ../tests/tesseracttests.cpp
 tesseracttests_LDADD = $(GTEST_LIBS) $(TESS_LIBS) $(LEPTONICA_LIBS)
 

unittest/tfile_test.cc

@@ -1,5 +1,18 @@
-#include "tesseract/ccutil/genericvector.h"
-#include "tesseract/ccutil/serialis.h"
+// (C) Copyright 2017, Google Inc.
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "genericvector.h"
+#include "serialis.h"
+
+#include "include_gunit.h"
 
 using tesseract::TFile;
 
@@ -122,7 +135,7 @@ TEST_F(TfileTest, Serialize) {
 TEST_F(TfileTest, FGets) {
   // This test verifies that Tfile can interleave FGets with binary data.
   MathData m1;
-  string line_str = "This is a textline with a newline\n";
+  std::string line_str = "This is a textline with a newline\n";
   m1.Setup();
   GenericVector<char> data;
   TFile fpw;