unittest: Fix and enable stats_test

This requires a local definition for macro ABSL_ARRAYSIZE
(normally defined as part of the Abseil API).

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

unittest/Makefile.am

@@ -67,6 +67,7 @@ check_PROGRAMS = \
   osd_test \
   progress_test \
   rect_test \
+  stats_test \
   tesseracttests
 
 TESTS = $(check_PROGRAMS)
@@ -123,6 +124,9 @@ progress_test_LDADD = $(GTEST_LIBS) $(GMOCK_LIBS) $(TESS_LIBS) $(LEPTONICA_LIBS)
 rect_test_SOURCES = rect_test.cc
 rect_test_LDADD = $(GTEST_LIBS) $(TESS_LIBS)
 
+stats_test_SOURCES = stats_test.cc
+stats_test_LDADD = $(GTEST_LIBS) $(TESS_LIBS)
+
 tesseracttests_SOURCES = ../tests/tesseracttests.cpp
 tesseracttests_LDADD = $(GTEST_LIBS) $(TESS_LIBS) $(LEPTONICA_LIBS)
 

unittest/include_gunit.h

@@ -22,6 +22,7 @@ const char* FLAGS_test_tmpdir = ".";
 class file: public tesseract::File {
 };
 
+#define ABSL_ARRAYSIZE(arr) (sizeof(arr) / sizeof(arr[0]))
 #define ARRAYSIZE(arr) (sizeof(arr) / sizeof(arr[0]))
 #define CHECK(test) ASSERT_HOST(test)
 

unittest/stats_test.cc

@@ -1,7 +1,19 @@
+// (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 "tesseract/ccstruct/statistc.h"
+#include "statistc.h"
-#include "tesseract/ccutil/genericvector.h"
+#include "genericvector.h"
-#include "tesseract/ccutil/kdpair.h"
+#include "kdpair.h"
+
+#include "include_gunit.h"
 
 namespace {
 
@@ -45,12 +57,3 @@ TEST_F(STATSTest, TopNModes) {
 }
 
 }  // namespace.
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