From 88e4c62b3970fe30de177cf47b357121eb76eef4 Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Sat, 19 Aug 2017 18:42:06 +0530
Subject: [PATCH 01/12] Add files via upload

---
 unittest/Makefile.am        | 62 +++++++++++++++++++++++++++++++++++++
 unittest/apiexample_test.cc | 52 +++++++++++++++++++++++++++++++
 2 files changed, 114 insertions(+)
 create mode 100644 unittest/Makefile.am
 create mode 100644 unittest/apiexample_test.cc

diff --git a/unittest/Makefile.am b/unittest/Makefile.am
new file mode 100644
index 0000000000..b486890e27
--- /dev/null
+++ b/unittest/Makefile.am
@@ -0,0 +1,62 @@
+AUTOMAKE_OPTIONS = subdir-objects
+
+AM_CPPFLAGS += \
+    -DUSE_STD_NAMESPACE -DPANGO_ENABLE_ENGINE \
+    -I$(top_srcdir)/ccmain -I$(top_srcdir)/api \
+    -I$(top_srcdir)/ccutil -I$(top_srcdir)/ccstruct \
+    -I$(top_srcdir)/lstm -I$(top_srcdir)/arch \
+    -I$(top_srcdir)/viewer \
+    -I$(top_srcdir)/textord -I$(top_srcdir)/dict \
+    -I$(top_srcdir)/classify -I$(top_srcdir)/display \
+    -I$(top_srcdir)/wordrec -I$(top_srcdir)/cutil
+	
+# Build googletest:
+check_LTLIBRARIES = libgtest.la libgtest_main.la
+libgtest_la_SOURCES = ../googletest/googletest/src/gtest-all.cc
+libgtest_la_CPPFLAGS = -I$(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
diff --git a/unittest/apiexample_test.cc b/unittest/apiexample_test.cc
new file mode 100644
index 0000000000..a9724b861e
--- /dev/null
+++ b/unittest/apiexample_test.cc
@@ -0,0 +1,52 @@
+///////////////////////////////////////////////////////////////////////
+// File:        apiexample.cpp
+// 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) 
+{
+    const char* imagefile = "../testing/phototest.tif";
+    const char* groundtruth = "testfiles/phototest.txt";
+    char *outText;
+    std::locale loc("en_US.UTF-8"); 
+    std::ifstream file(groundtruth);
+    file.imbue(loc); 
+    std::string gtText((std::istreambuf_iterator<char>(file)),
+             std::istreambuf_iterator<char>());
+    tesseract::TessBaseAPI *api = new tesseract::TessBaseAPI();
+    if (api->Init(NULL, "eng")) {
+        fprintf(stderr, "Could not initialize tesseract.\n");
+        exit(1);
+    }
+    Pix *image = pixRead(imagefile);
+    api->SetImage(image);
+    api->SetPageSegMode(tesseract::PSM_AUTO_OSD);
+    outText = api->GetUTF8Text();
+    ASSERT_EQ(gtText,outText) << "Phototest.tif with default values OCR does not match ground truth";
+    api->End();
+    delete [] outText;
+    pixDestroy(&image);
+}
+
+int main(int argc, char **argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}
\ No newline at end of file

From 436ad77e44cb52333a819d0c5498bd6e608a8bbc Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Sat, 19 Aug 2017 18:43:10 +0530
Subject: [PATCH 02/12] Create readme.md

---
 unittest/testfiles/readme.md | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 unittest/testfiles/readme.md

diff --git a/unittest/testfiles/readme.md b/unittest/testfiles/readme.md
new file mode 100644
index 0000000000..db49b89d81
--- /dev/null
+++ b/unittest/testfiles/readme.md
@@ -0,0 +1 @@
+Test files used for unit tests

From 7b409a1bfa3a3badd4d3dadbc29e26ae2c7aec54 Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Sat, 19 Aug 2017 18:43:57 +0530
Subject: [PATCH 03/12] unittest testfile

---
 unittest/testfiles/phototest.txt | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 unittest/testfiles/phototest.txt

diff --git a/unittest/testfiles/phototest.txt b/unittest/testfiles/phototest.txt
new file mode 100644
index 0000000000..02d3a77cbb
--- /dev/null
+++ b/unittest/testfiles/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.

From f3dc156f2212c2cf4f71cf3f750e404e658b89fe Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Sat, 19 Aug 2017 18:46:23 +0530
Subject: [PATCH 04/12] updated version of apiexample_test

---
 unittest/apiexample_test.cc | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/unittest/apiexample_test.cc b/unittest/apiexample_test.cc
index a9724b861e..00b0301707 100644
--- a/unittest/apiexample_test.cc
+++ b/unittest/apiexample_test.cc
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////
-// File:        apiexample.cpp
+// File:        apiexample_test.cc
 // Description: Api Example for Tesseract.
 // Author:      ShreeDevi Kumar
 //
@@ -23,30 +23,36 @@
 
 TEST(TesseractTest, ApiExample) 
 {
-    const char* imagefile = "../testing/phototest.tif";
-    const char* groundtruth = "testfiles/phototest.txt";
     char *outText;
-    std::locale loc("en_US.UTF-8"); 
-    std::ifstream file(groundtruth);
-    file.imbue(loc); 
+    std::locale loc("en_US.UTF-8"); // You can also use "" for the default system locale
+    std::ifstream file("testfiles/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);
     }
-    Pix *image = pixRead(imagefile);
+
+    // Open input image with leptonica library
+    Pix *image = pixRead("../testing/phototest.tif");
     api->SetImage(image);
-    api->SetPageSegMode(tesseract::PSM_AUTO_OSD);
+    // Get OCR result
     outText = api->GetUTF8Text();
-    ASSERT_EQ(gtText,outText) << "Phototest.tif with default values OCR does not match ground truth";
+
+   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();
-}
\ No newline at end of file
+}

From 267734bc34fda70aab2d0ad7fb322e817006dc74 Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Sat, 19 Aug 2017 19:01:46 +0530
Subject: [PATCH 05/12] Changes needed for adding make check for unittest

---
 Makefile.am  | 2 +-
 configure.ac | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 258cbdd047..3a1342a9b9 100644
--- a/Makefile.am
+++ b/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 \
diff --git a/configure.ac b/configure.ac
index ab4e30ae5d..ff9fca492a 100644
--- a/configure.ac
+++ b/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])

From 6773e8b909d7409f7434db67da6dff56090a7eda Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Sat, 19 Aug 2017 19:17:08 +0530
Subject: [PATCH 06/12] add blank lines to match OCRed text

---
 unittest/testfiles/phototest.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/unittest/testfiles/phototest.txt b/unittest/testfiles/phototest.txt
index 02d3a77cbb..a47dc53210 100644
--- a/unittest/testfiles/phototest.txt
+++ b/unittest/testfiles/phototest.txt
@@ -7,3 +7,4 @@ 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.
+

From 3b05b3e28b5de07fff1784733f7218e94adb3f85 Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Sat, 2 Sep 2017 20:00:45 +0530
Subject: [PATCH 07/12] revert blank line at end

as not needed after
https://github.com/tesseract-ocr/tesseract/commit/8bb5a89d5ac0e0c5e94fc566dff70ee1fffc95d1
---
 unittest/testfiles/phototest.txt | 1 -
 1 file changed, 1 deletion(-)

diff --git a/unittest/testfiles/phototest.txt b/unittest/testfiles/phototest.txt
index a47dc53210..02d3a77cbb 100644
--- a/unittest/testfiles/phototest.txt
+++ b/unittest/testfiles/phototest.txt
@@ -7,4 +7,3 @@ 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.
-

From 10cf508442497667b26b979f31d6f7f873b218f6 Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Sun, 3 Sep 2017 08:09:18 +0530
Subject: [PATCH 08/12] Changed syntax for AM_CPPFLAGS

as per suggestion in https://github.com/tesseract-ocr/tesseract/pull/1088#discussion_r136700733

Not ALL of these are needed currently.
---
 unittest/Makefile.am | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/unittest/Makefile.am b/unittest/Makefile.am
index b486890e27..beddae0701 100644
--- a/unittest/Makefile.am
+++ b/unittest/Makefile.am
@@ -1,14 +1,19 @@
 AUTOMAKE_OPTIONS = subdir-objects
 
-AM_CPPFLAGS += \
-    -DUSE_STD_NAMESPACE -DPANGO_ENABLE_ENGINE \
-    -I$(top_srcdir)/ccmain -I$(top_srcdir)/api \
-    -I$(top_srcdir)/ccutil -I$(top_srcdir)/ccstruct \
-    -I$(top_srcdir)/lstm -I$(top_srcdir)/arch \
-    -I$(top_srcdir)/viewer \
-    -I$(top_srcdir)/textord -I$(top_srcdir)/dict \
-    -I$(top_srcdir)/classify -I$(top_srcdir)/display \
-    -I$(top_srcdir)/wordrec -I$(top_srcdir)/cutil
+AM_CPPFLAGS += -DUSE_STD_NAMESPACE -DPANGO_ENABLE_ENGINE
+AM_CPPFLAGS += -I$(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

From 0ed7317c38f70d1a65bf3d9dd7f2eebacfaae165 Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Mon, 4 Sep 2017 10:42:37 +0530
Subject: [PATCH 09/12] Rename unittest/testfiles/phototest.txt to
 testing/phototest.txt

Add groundtruth in the testing directory
---
 {unittest/testfiles => testing}/phototest.txt | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename {unittest/testfiles => testing}/phototest.txt (100%)

diff --git a/unittest/testfiles/phototest.txt b/testing/phototest.txt
similarity index 100%
rename from unittest/testfiles/phototest.txt
rename to testing/phototest.txt

From f7284569ff958d3dfdc3806d633a42a0598e3068 Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Mon, 4 Sep 2017 10:44:43 +0530
Subject: [PATCH 10/12] Use groundtruth from testing directory

---
 unittest/apiexample_test.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unittest/apiexample_test.cc b/unittest/apiexample_test.cc
index 00b0301707..f6e85657e2 100644
--- a/unittest/apiexample_test.cc
+++ b/unittest/apiexample_test.cc
@@ -25,7 +25,7 @@ TEST(TesseractTest, ApiExample)
 {
     char *outText;
     std::locale loc("en_US.UTF-8"); // You can also use "" for the default system locale
-    std::ifstream file("testfiles/phototest.txt");
+    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>());

From e0464a0d3123ba2177050f052a008acbf987a6b4 Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Mon, 4 Sep 2017 10:45:44 +0530
Subject: [PATCH 11/12] Delete readme.md

---
 unittest/testfiles/readme.md | 1 -
 1 file changed, 1 deletion(-)
 delete mode 100644 unittest/testfiles/readme.md

diff --git a/unittest/testfiles/readme.md b/unittest/testfiles/readme.md
deleted file mode 100644
index db49b89d81..0000000000
--- a/unittest/testfiles/readme.md
+++ /dev/null
@@ -1 +0,0 @@
-Test files used for unit tests

From 69ef9401ca1bfb9e13332fb0e6ca6de395a7dc87 Mon Sep 17 00:00:00 2001
From: Shreeshrii <shreeshrii@gmail.com>
Date: Mon, 4 Sep 2017 18:31:13 +0530
Subject: [PATCH 12/12] Groundtruth for testing/eurotext.tif

---
 testing/eurotext.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 testing/eurotext.txt

diff --git a/testing/eurotext.txt b/testing/eurotext.txt
new file mode 100644
index 0000000000..3602f95309
--- /dev/null
+++ b/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 aspammer@website.com 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.