makefile.am and apiexample_test

Makefile.am

@@ -20,7 +20,7 @@ endif
 .PHONY: install-langs ScrollView.jar install-jars training
 
 SUBDIRS = arch ccutil viewer cutil opencl ccstruct dict classify wordrec textord lstm
-SUBDIRS += ccmain api . tessdata doc
+SUBDIRS += ccmain api . tessdata doc unittest
 
 EXTRA_DIST = README.md\
 	aclocal.m4 config configure.ac autogen.sh contrib \

configure.ac

@@ -66,7 +66,7 @@ AC_SUBST([GENERIC_VERSION])
 # ----------------------------------------
 
 # Do not require README file (we use README.md)
-AM_INIT_AUTOMAKE([foreign])
+AM_INIT_AUTOMAKE([foreign subdir-objects])
 AC_CONFIG_HEADERS([config_auto.h:config/config.h.in])
 AM_MAINTAINER_MODE
 
@@ -501,6 +501,7 @@ AC_CONFIG_FILES([tessdata/Makefile])
 AC_CONFIG_FILES([tessdata/configs/Makefile])
 AC_CONFIG_FILES([tessdata/tessconfigs/Makefile])
 AC_CONFIG_FILES([testing/Makefile])
+AC_CONFIG_FILES([unittest/Makefile])
 AC_CONFIG_FILES([java/Makefile])
 AC_CONFIG_FILES([java/com/Makefile])
 AC_CONFIG_FILES([java/com/google/Makefile])

testing/eurotext.txt

@@ -0,0 +1,12 @@
+The (quick) [brown] {fox} jumps!
+Over the $43,456.78 <lazy> #90 dog
+& duck/goose, as 12.5% of E-mail
+from [email protected] is spam.
+Der „schnelle” braune Fuchs springt
+über den faulen Hund. Le renard brun
+«rapide» saute par-dessus le chien
+paresseux. La volpe marrone rapida
+salta sopra il cane pigro. El zorro
+marrón rápido salta sobre el perro
+perezoso. A raposa marrom rápida
+salta sobre o cão preguiçoso.

testing/phototest.txt

@@ -0,0 +1,9 @@
+This is a lot of 12 point text to test the
+ocr code and see if it works on all types
+of file format.
+
+The quick brown dog jumped over the
+lazy fox. The quick brown dog jumped
+over the lazy fox. The quick brown dog
+jumped over the lazy fox. The quick
+brown dog jumped over the lazy fox.

unittest/Makefile.am

@@ -0,0 +1,67 @@
+AUTOMAKE_OPTIONS = subdir-objects
+
+AM_CPPFLAGS += -DUSE_STD_NAMESPACE -DPANGO_ENABLE_ENGINE
+AM_CPPFLAGS += -I$(top_srcdir)/api
+AM_CPPFLAGS += -I$(top_srcdir)/arch 
+AM_CPPFLAGS += -I$(top_srcdir)/ccmain
+AM_CPPFLAGS += -I$(top_srcdir)/ccstruct 
+AM_CPPFLAGS += -I$(top_srcdir)/ccutil 
+AM_CPPFLAGS += -I$(top_srcdir)/classify 
+AM_CPPFLAGS += -I$(top_srcdir)/cutil
+AM_CPPFLAGS += -I$(top_srcdir)/dict 
+AM_CPPFLAGS += -I$(top_srcdir)/display 
+AM_CPPFLAGS += -I$(top_srcdir)/lstm 
+AM_CPPFLAGS += -I$(top_srcdir)/textord 
+AM_CPPFLAGS += -I$(top_srcdir)/viewer 
+AM_CPPFLAGS += -I$(top_srcdir)/wordrec
+
+# Build googletest:
+check_LTLIBRARIES = libgtest.la libgtest_main.la
+libgtest_la_SOURCES = ../googletest/googletest/src/gtest-all.cc
+libgtest_la_CPPFLAGS = -I$(top_srcdir)/googletest/googletest/include -I$(top_srcdir)/googletest/googletest -pthread 
+libgtest_main_la_SOURCES = ../googletest/googletest/src/gtest_main.cc
+## libgtest_main_la_LIBADD = libgtest.la
+
+# Build unittests
+GTEST_LIBS =  libgtest.la libgtest_main.la
+AM_CPPFLAGS +=   -isystem $(top_srcdir)/googletest/googletest/include  
+
+check_PROGRAMS = \
+  apiexample_test \
+  tesseracttests \
+  matrix_test
+
+TESTS = $(check_PROGRAMS)
+
+#List of source files needed to build the executable:
+
+tesseracttests_SOURCES = ../tests/tesseracttests.cpp
+tesseracttests_LDADD = $(GTEST_LIBS)
+
+matrix_test_SOURCES = matrix_test.cc
+matrix_test_LDADD = $(GTEST_LIBS)
+
+apiexample_test_SOURCES = apiexample_test.cc
+#apiexample_test_LDFLAGS = -static
+apiexample_test_LDFLAGS = $(OPENCL_LDFLAGS)
+
+if USING_MULTIPLELIBS
+apiexample_test_LDADD = \
+    $(top_srcdir)/ccutil/libtesseract_ccutil.la \
+    $(top_srcdir)/ccstruct/libtesseract_ccstruct.la
+else
+apiexample_test_LDADD = \
+    $(top_srcdir)/api/libtesseract.la
+endif
+
+apiexample_test_LDADD += $(LEPTONICA_LIBS)
+apiexample_test_LDADD += $(GTEST_LIBS)
+
+# for windows
+if T_WIN
+apiexample_test_LDADD += -lws2_32
+matrix_test_LDADD += -lws2_32
+tesseracttests_LDADD  += -lws2_32
+
+AM_CPPFLAGS += -I$(top_srcdir)/vs2010/port
+endif

unittest/apiexample_test.cc

@@ -0,0 +1,58 @@
+///////////////////////////////////////////////////////////////////////
+// File:        apiexample_test.cc
+// Description: Api Example for Tesseract.
+// Author:      ShreeDevi Kumar
+//
+// 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 "gtest/gtest.h"
+#include "tesseract/baseapi.h"
+#include "leptonica/allheaders.h"
+#include <iostream>
+#include <string>
+#include <fstream>
+#include <locale>
+
+TEST(TesseractTest, ApiExample) 
+{
+    char *outText;
+    std::locale loc("en_US.UTF-8"); // You can also use "" for the default system locale
+    std::ifstream file("../testing/phototest.txt");
+    file.imbue(loc); // Use it for file input
+    std::string gtText((std::istreambuf_iterator<char>(file)),
+             std::istreambuf_iterator<char>());
+
+    tesseract::TessBaseAPI *api = new tesseract::TessBaseAPI();
+    // Initialize tesseract-ocr with English, without specifying tessdata path
+    if (api->Init(NULL, "eng")) {
+        fprintf(stderr, "Could not initialize tesseract.\n");
+        exit(1);
+    }
+
+    // Open input image with leptonica library
+    Pix *image = pixRead("../testing/phototest.tif");
+    api->SetImage(image);
+    // Get OCR result
+    outText = api->GetUTF8Text();
+
+   ASSERT_EQ(gtText,outText) << "Phototest.tif with default values OCR does not match ground truth";
+
+    // Destroy used object and release memory
+    api->End();
+    delete [] outText;
+    pixDestroy(&image);
+
+}
+
+int main(int argc, char **argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}