From 0c0f98ad2be3a222a472d67014040cfa0b09fe81 Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Tue, 11 Jun 2019 09:05:22 -0300
Subject: [PATCH 01/18] Add GTest example

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 .travis.yml                                   |  6 ++
 README.md                                     |  6 ++
 appveyor.yml                                  |  4 +
 libraries/gtest/encryption/CMakeLists.txt     | 17 ++++
 libraries/gtest/encryption/README.md          | 25 ++++++
 libraries/gtest/encryption/build.bat          | 11 +++
 libraries/gtest/encryption/build.sh           | 14 +++
 libraries/gtest/encryption/conanfile.py       | 34 ++++++++
 libraries/gtest/encryption/encrypter.cpp      | 86 +++++++++++++++++++
 libraries/gtest/encryption/encrypter.h        |  9 ++
 .../encryption/test_package/CMakeLists.txt    | 16 ++++
 .../encryption/test_package/conanfile.py      | 22 +++++
 .../test_package/encryption_test.cpp          | 51 +++++++++++
 13 files changed, 301 insertions(+)
 create mode 100644 libraries/gtest/encryption/CMakeLists.txt
 create mode 100644 libraries/gtest/encryption/README.md
 create mode 100755 libraries/gtest/encryption/build.bat
 create mode 100755 libraries/gtest/encryption/build.sh
 create mode 100644 libraries/gtest/encryption/conanfile.py
 create mode 100644 libraries/gtest/encryption/encrypter.cpp
 create mode 100644 libraries/gtest/encryption/encrypter.h
 create mode 100644 libraries/gtest/encryption/test_package/CMakeLists.txt
 create mode 100644 libraries/gtest/encryption/test_package/conanfile.py
 create mode 100644 libraries/gtest/encryption/test_package/encryption_test.cpp

diff --git a/.travis.yml b/.travis.yml
index 6db14584..81569dc1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,6 +37,9 @@ matrix:
       - name: Using Facebook Folly with Conan
         <<: *linux
         env: FOLDER=libraries/folly/basic
+      - name: GTest encryption example
+        <<: *linux
+        env: FOLDER=libraries/gtest/encryption
       - name: CMake reuse exported targets multiconfig
         <<: *linux
         env: FOLDER=features/cmake/find_package/exported_targets_multiconfig
@@ -67,6 +70,9 @@ matrix:
       - name: Using Facebook Folly with Conan
         <<: *osx
         env: FOLDER=libraries/folly/basic
+      - name: GTest encryption example
+        <<: *osx
+        env: FOLDER=libraries/gtest/encryption
       - name: CMake reuse exported targets multiconfig
         <<: *osx
         env: FOLDER=features/cmake/find_package/exported_targets_multiconfig
diff --git a/README.md b/README.md
index f7ed600e..ed4d167d 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,12 @@ Demonstrate how to use Folly to validate an URI using Futures, FBString, Executo
 
 Blog Post: https://blog.conan.io/2018/12/03/Using-Facebook-Folly-with-Conan.html
 
+#### [Using package flow with GTest](libraries/gtest/encryption)
+
+Demonstrate how to use GTest to test a project with CMake using package development flow
+
+Documentation: https://docs.conan.io/en/latest/developing_packages/package_dev_flow.html
+
 #### [Exporting targets with CMake and reuse with find_package()](features/cmake/find_package/exported_targets_multiconfig)
 
 Use CMake to declare, export and install the targets of some libraries and using Conan to reuse them with
diff --git a/appveyor.yml b/appveyor.yml
index 0b0c5042..1c3c9af0 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -36,6 +36,10 @@ environment:
         - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
           CMAKE_GENERATOR: "Visual Studio 15 2017 Win64"
           PROJECT_DIR: libraries/folly/basic
+        # GTest encryption example
+        - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+          CMAKE_GENERATOR: "Visual Studio 15 2017 Win64"
+          PROJECT_DIR: libraries/gtest/encryption
         # Using Conan with find_package and exported targets
         - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
           CMAKE_GENERATOR: "Visual Studio 15 2017 Win64"
diff --git a/libraries/gtest/encryption/CMakeLists.txt b/libraries/gtest/encryption/CMakeLists.txt
new file mode 100644
index 00000000..6613bc4a
--- /dev/null
+++ b/libraries/gtest/encryption/CMakeLists.txt
@@ -0,0 +1,17 @@
+CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
+PROJECT(encrypter CXX)
+
+# Initialize Conan #############################################################
+INCLUDE(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+CONAN_BASIC_SETUP()
+
+# Create Encrypter library #####################################################
+ADD_LIBRARY(${CMAKE_PROJECT_NAME} encrypter.cpp)
+TARGET_LINK_LIBRARIES(${CMAKE_PROJECT_NAME} ${CONAN_LIBS})
+
+# Install Encrypter library ####################################################
+install(TARGETS ${CMAKE_PROJECT_NAME}
+        RUNTIME DESTINATION bin
+        LIBRARY DESTINATION lib
+        ARCHIVE DESTINATION lib)
+install(FILES encrypter.h DESTINATION include)
\ No newline at end of file
diff --git a/libraries/gtest/encryption/README.md b/libraries/gtest/encryption/README.md
new file mode 100644
index 00000000..e2094ca4
--- /dev/null
+++ b/libraries/gtest/encryption/README.md
@@ -0,0 +1,25 @@
+# Conan GTest Example
+
+## Getting Started
+
+* Download conan client from [Conan.io](https://conan.io).
+
+* Run the following command.
+
+```bash
+conan create . user/channel
+```
+
+The above command will export, build and test a conan package for a custom encryption library.
+
+## Synopsis
+
+[Conan.io](https://conan.io) example for [gtest](https://github.com/google/googletest/) project.
+
+The project is using OpenSSL to build an encryption library, and using Google test to ensure that the library is built correctly.
+The Google test library is required in the **test_package/conanfile.py**.
+
+A different approach would be running the test at the end of the **build()** method in the root conanfile.py and require gtest library as a **build_require**,
+so it would be only downloaded when the encryption library has to be built from sources.
+
+With that approach, the **test_package** project could just run an example using/linking with the encryption library.
diff --git a/libraries/gtest/encryption/build.bat b/libraries/gtest/encryption/build.bat
new file mode 100755
index 00000000..051451fd
--- /dev/null
+++ b/libraries/gtest/encryption/build.bat
@@ -0,0 +1,11 @@
+@ECHO ON
+
+RMDIR /Q /S build source package
+
+conan source . --source-folder source
+conan install . --install-folder build
+conan build . --source-folder source --build-folder build
+conan package . --source-folder source --build-folder build --package-folder package
+conan export-pkg . conan/testing --package-folder package
+
+conan test test_package conan-gtest-example/0.1.0@conan/testing
diff --git a/libraries/gtest/encryption/build.sh b/libraries/gtest/encryption/build.sh
new file mode 100755
index 00000000..8b93d764
--- /dev/null
+++ b/libraries/gtest/encryption/build.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -e
+set -x
+
+rm -rf build source package
+
+conan source . --source-folder source
+conan install . --install-folder build
+conan build . --source-folder source --build-folder build
+conan package . --source-folder source --build-folder build --package-folder package
+conan export-pkg . conan/testing --package-folder package
+
+conan test test_package conan-gtest-example/0.1.0@conan/testing
diff --git a/libraries/gtest/encryption/conanfile.py b/libraries/gtest/encryption/conanfile.py
new file mode 100644
index 00000000..e3d1ccb4
--- /dev/null
+++ b/libraries/gtest/encryption/conanfile.py
@@ -0,0 +1,34 @@
+from conans import ConanFile
+from conans import CMake
+
+
+class ConanGTestExample(ConanFile):
+    """Build Conan GTest Example"""
+    name = "conan-gtest-example"
+    version = "0.1.0"
+    url = "https://github.com/conan-io/examples"
+    author = "lasote"
+    license = "MIT"
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "cmake"
+    exports = "*"
+    description = "Google Test example of use for conan.io"
+    requires = "OpenSSL/1.0.2r@conan/stable"
+    options = {"shared": [True, False]}
+    default_options = {"shared": False}
+
+    def _configure_cmake(self):
+        cmake = CMake(self)
+        cmake.configure()
+        return cmake
+
+    def build(self):
+        cmake = self._configure_cmake()
+        cmake.build()
+
+    def package(self):
+        cmake = self._configure_cmake()
+        cmake.install()
+
+    def package_info(self):
+        self.cpp_info.libs = ["encrypter"]
diff --git a/libraries/gtest/encryption/encrypter.cpp b/libraries/gtest/encryption/encrypter.cpp
new file mode 100644
index 00000000..f53c060d
--- /dev/null
+++ b/libraries/gtest/encryption/encrypter.cpp
@@ -0,0 +1,86 @@
+// SOURCE CODE FROM https://wiki.openssl.org/index.php/EVP_Symmetric_Encryption_and_Decryption
+// applink.c => https://www.openssl.org/docs/faq.html
+#if _MSC_VER
+	#include "openssl/applink.c" 
+#endif
+#include "encrypter.h"
+
+int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key, unsigned char *iv, unsigned char *ciphertext){
+  EVP_CIPHER_CTX *ctx;
+
+  int len;
+
+  int ciphertext_len;
+
+  /* Create and initialise the context */
+  if(!(ctx = EVP_CIPHER_CTX_new())) handleErrors();
+
+  /* Initialise the encryption operation. IMPORTANT - ensure you use a key
+   * and IV size appropriate for your cipher
+   * In this example we are using 256 bit AES (i.e. a 256 bit key). The
+   * IV size for *most* modes is the same as the block size. For AES this
+   * is 128 bits */
+  if(1 != EVP_EncryptInit_ex(ctx, EVP_aes_256_cbc(), NULL, key, iv))
+    handleErrors();
+
+  /* Provide the message to be encrypted, and obtain the encrypted output.
+   * EVP_EncryptUpdate can be called multiple times if necessary
+   */
+  if(1 != EVP_EncryptUpdate(ctx, ciphertext, &len, plaintext, plaintext_len))
+    handleErrors();
+  ciphertext_len = len;
+
+  /* Finalise the encryption. Further ciphertext bytes may be written at
+   * this stage.
+   */
+  if(1 != EVP_EncryptFinal_ex(ctx, ciphertext + len, &len)) handleErrors();
+  ciphertext_len += len;
+
+  /* Clean up */
+  EVP_CIPHER_CTX_free(ctx);
+
+  return ciphertext_len;
+}
+
+
+int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, unsigned char *iv, unsigned char *plaintext){
+  EVP_CIPHER_CTX *ctx;
+
+  int len;
+
+  int plaintext_len;
+
+  /* Create and initialise the context */
+  if(!(ctx = EVP_CIPHER_CTX_new())) handleErrors();
+
+  /* Initialise the decryption operation. IMPORTANT - ensure you use a key
+   * and IV size appropriate for your cipher
+   * In this example we are using 256 bit AES (i.e. a 256 bit key). The
+   * IV size for *most* modes is the same as the block size. For AES this
+   * is 128 bits */
+  if(1 != EVP_DecryptInit_ex(ctx, EVP_aes_256_cbc(), NULL, key, iv))
+    handleErrors();
+
+  /* Provide the message to be decrypted, and obtain the plaintext output.
+   * EVP_DecryptUpdate can be called multiple times if necessary
+   */
+  if(1 != EVP_DecryptUpdate(ctx, plaintext, &len, ciphertext, ciphertext_len))
+    handleErrors();
+  plaintext_len = len;
+
+  /* Finalise the decryption. Further plaintext bytes may be written at
+   * this stage.
+   */
+  if(1 != EVP_DecryptFinal_ex(ctx, plaintext + len, &len)) handleErrors();
+  plaintext_len += len;
+
+  /* Clean up */
+  EVP_CIPHER_CTX_free(ctx);
+
+  return plaintext_len;
+}
+
+void handleErrors(void){
+  ERR_print_errors_fp(stderr);
+  abort();
+}
\ No newline at end of file
diff --git a/libraries/gtest/encryption/encrypter.h b/libraries/gtest/encryption/encrypter.h
new file mode 100644
index 00000000..1a730269
--- /dev/null
+++ b/libraries/gtest/encryption/encrypter.h
@@ -0,0 +1,9 @@
+#include <openssl/conf.h>
+#include <openssl/evp.h>
+#include <openssl/err.h>
+#include <string.h>
+
+int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key, unsigned char *iv, unsigned char *ciphertext);
+int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, unsigned char *iv, unsigned char *plaintext);
+void handleErrors(void);
+
diff --git a/libraries/gtest/encryption/test_package/CMakeLists.txt b/libraries/gtest/encryption/test_package/CMakeLists.txt
new file mode 100644
index 00000000..9e6fdf68
--- /dev/null
+++ b/libraries/gtest/encryption/test_package/CMakeLists.txt
@@ -0,0 +1,16 @@
+CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
+PROJECT(encryption-test CXX)
+
+# Initialize Conan #############################################################
+INCLUDE(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+CONAN_BASIC_SETUP()
+
+# Create application test ######################################################
+ADD_EXECUTABLE(${PROJECT_NAME} encryption_test.cpp)
+TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${CONAN_LIBS})
+
+# Include Encryptor test #######################################################
+ENABLE_TESTING()
+ADD_TEST(NAME encryption
+         WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/bin
+         COMMAND ${PROJECT_NAME})
diff --git a/libraries/gtest/encryption/test_package/conanfile.py b/libraries/gtest/encryption/test_package/conanfile.py
new file mode 100644
index 00000000..824647e3
--- /dev/null
+++ b/libraries/gtest/encryption/test_package/conanfile.py
@@ -0,0 +1,22 @@
+from conans import ConanFile
+from conans import CMake
+
+
+class TestConanGTestExample(ConanFile):
+    settings = "os", "compiler", "arch", "build_type"
+    generators = "cmake"
+    requires = "gtest/1.8.1@bincrafters/stable"
+    default_options = {"gtest:shared": True}
+
+    def _configure_cmake(self):
+        cmake = CMake(self)
+        cmake.configure()
+        return cmake
+
+    def build(self):
+        cmake = self._configure_cmake()
+        cmake.build()
+
+    def test(self):
+        cmake = self._configure_cmake()
+        cmake.test()
diff --git a/libraries/gtest/encryption/test_package/encryption_test.cpp b/libraries/gtest/encryption/test_package/encryption_test.cpp
new file mode 100644
index 00000000..9214b49a
--- /dev/null
+++ b/libraries/gtest/encryption/test_package/encryption_test.cpp
@@ -0,0 +1,51 @@
+// SOURCE CODE FROM https://wiki.openssl.org/index.php/EVP_Symmetric_Encryption_and_Decryption
+
+#include <gtest/gtest.h>
+#include "encrypter.h"
+
+TEST(TestingEncryption, cipher) {
+
+	  /* A 256 bit key */
+	  unsigned char *key = (unsigned char *)"01234567890123456789012345678901";
+
+	  /* A 128 bit IV */
+	  unsigned char *iv = (unsigned char *)"01234567890123456";
+
+	  /* Message to be encrypted */
+	  unsigned char *plaintext = (unsigned char *) "The quick brown fox jumps over the lazy dog";
+	  unsigned char ciphertext[128];
+
+	  /* Buffer for the decrypted text */
+	  unsigned char decryptedtext[128];
+
+	  int decryptedtext_len, ciphertext_len;
+
+	  /* Initialise the library */
+	  ERR_load_crypto_strings();
+	  OpenSSL_add_all_algorithms();
+	  OPENSSL_config(NULL);
+
+	  /* Encrypt the plaintext */
+	  ciphertext_len = encrypt (plaintext, strlen ((char *)plaintext), key, iv, ciphertext);
+
+	  /* Do something useful with the ciphertext here */
+	  printf("Ciphertext is:\n");
+	  BIO_dump_fp (stdout, (const char *)ciphertext, ciphertext_len);
+
+	  /* Decrypt the ciphertext */
+	  decryptedtext_len = decrypt(ciphertext, ciphertext_len, key, iv, decryptedtext);
+
+	  decryptedtext[decryptedtext_len] = '\0';
+
+	  /* Show the decrypted text */
+	  printf("Decrypted text is:\n");
+	  printf("%s\n", decryptedtext);
+
+	  // The decoded data is the same that we encode
+	  ASSERT_STREQ((const char*) decryptedtext, (const char*) plaintext);
+
+	  /* Clean up */
+	  EVP_cleanup();
+	  ERR_free_strings();
+}
+

From 00dfee14b197f1720fa570a6b956bffb2b53fdae Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Wed, 15 Apr 2020 15:47:24 -0300
Subject: [PATCH 02/18] Update GTest package

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 libraries/gtest/encryption/conanfile.py              | 2 +-
 libraries/gtest/encryption/test_package/conanfile.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libraries/gtest/encryption/conanfile.py b/libraries/gtest/encryption/conanfile.py
index e3d1ccb4..3ad0ba92 100644
--- a/libraries/gtest/encryption/conanfile.py
+++ b/libraries/gtest/encryption/conanfile.py
@@ -13,7 +13,7 @@ class ConanGTestExample(ConanFile):
     generators = "cmake"
     exports = "*"
     description = "Google Test example of use for conan.io"
-    requires = "OpenSSL/1.0.2r@conan/stable"
+    requires = "openssl/1.1.1e"
     options = {"shared": [True, False]}
     default_options = {"shared": False}
 
diff --git a/libraries/gtest/encryption/test_package/conanfile.py b/libraries/gtest/encryption/test_package/conanfile.py
index 824647e3..8d36dd4b 100644
--- a/libraries/gtest/encryption/test_package/conanfile.py
+++ b/libraries/gtest/encryption/test_package/conanfile.py
@@ -5,7 +5,7 @@
 class TestConanGTestExample(ConanFile):
     settings = "os", "compiler", "arch", "build_type"
     generators = "cmake"
-    requires = "gtest/1.8.1@bincrafters/stable"
+    requires = "gtest/1.10.0"
     default_options = {"gtest:shared": True}
 
     def _configure_cmake(self):

From 5a3bd9fa447935de8a4ac59302fa86eed3fa2a43 Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Wed, 15 Apr 2020 17:17:34 -0300
Subject: [PATCH 03/18] Apply C++11 for GTest

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 README.md                                     |  6 +++++
 libraries/gtest/encryption/README.md          | 25 -------------------
 .../encryption/test_package/CMakeLists.txt    |  3 ++-
 3 files changed, 8 insertions(+), 26 deletions(-)
 delete mode 100644 libraries/gtest/encryption/README.md

diff --git a/README.md b/README.md
index e772e374..9a1c9ca5 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,12 @@ Demonstrate how to use Folly to validate an URI using Futures, FBString, Executo
 
 Blog Post: https://blog.conan.io/2018/12/03/Using-Facebook-Folly-with-Conan.html
 
+### [Testing package with GTest](libraries/gtest/encryption)
+
+Demonstrate how to use GTest with your test package.
+
+Docs: https://docs.conan.io/en/latest/integrations/ci/appveyor.html#building-and-testing-your-project
+
 ### [An introduction to Dear ImGui and how to use with Conan](libraries/dear-imgui/basic)
 
 Demonstrate how to use Dear ImGui with Conan to add a GUI to an OpenGL3 application.
diff --git a/libraries/gtest/encryption/README.md b/libraries/gtest/encryption/README.md
deleted file mode 100644
index e2094ca4..00000000
--- a/libraries/gtest/encryption/README.md
+++ /dev/null
@@ -1,25 +0,0 @@
-# Conan GTest Example
-
-## Getting Started
-
-* Download conan client from [Conan.io](https://conan.io).
-
-* Run the following command.
-
-```bash
-conan create . user/channel
-```
-
-The above command will export, build and test a conan package for a custom encryption library.
-
-## Synopsis
-
-[Conan.io](https://conan.io) example for [gtest](https://github.com/google/googletest/) project.
-
-The project is using OpenSSL to build an encryption library, and using Google test to ensure that the library is built correctly.
-The Google test library is required in the **test_package/conanfile.py**.
-
-A different approach would be running the test at the end of the **build()** method in the root conanfile.py and require gtest library as a **build_require**,
-so it would be only downloaded when the encryption library has to be built from sources.
-
-With that approach, the **test_package** project could just run an example using/linking with the encryption library.
diff --git a/libraries/gtest/encryption/test_package/CMakeLists.txt b/libraries/gtest/encryption/test_package/CMakeLists.txt
index 9e6fdf68..a933f7cd 100644
--- a/libraries/gtest/encryption/test_package/CMakeLists.txt
+++ b/libraries/gtest/encryption/test_package/CMakeLists.txt
@@ -1,4 +1,4 @@
-CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
+CMAKE_MINIMUM_REQUIRED(VERSION 2.8.11)
 PROJECT(encryption-test CXX)
 
 # Initialize Conan #############################################################
@@ -8,6 +8,7 @@ CONAN_BASIC_SETUP()
 # Create application test ######################################################
 ADD_EXECUTABLE(${PROJECT_NAME} encryption_test.cpp)
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${CONAN_LIBS})
+SET_PROPERTY(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 11)
 
 # Include Encryptor test #######################################################
 ENABLE_TESTING()

From 8d4c4973efcee0d00e3aef1c25a87546fe77c3b5 Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Wed, 22 Apr 2020 17:24:22 -0300
Subject: [PATCH 04/18] Fix Windows build

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 libraries/gtest/encryption/encrypter.cpp             | 3 ---
 libraries/gtest/encryption/encrypter.h               | 1 +
 libraries/gtest/encryption/test_package/conanfile.py | 8 +++++---
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/libraries/gtest/encryption/encrypter.cpp b/libraries/gtest/encryption/encrypter.cpp
index f53c060d..db735616 100644
--- a/libraries/gtest/encryption/encrypter.cpp
+++ b/libraries/gtest/encryption/encrypter.cpp
@@ -1,8 +1,5 @@
 // SOURCE CODE FROM https://wiki.openssl.org/index.php/EVP_Symmetric_Encryption_and_Decryption
 // applink.c => https://www.openssl.org/docs/faq.html
-#if _MSC_VER
-	#include "openssl/applink.c" 
-#endif
 #include "encrypter.h"
 
 int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key, unsigned char *iv, unsigned char *ciphertext){
diff --git a/libraries/gtest/encryption/encrypter.h b/libraries/gtest/encryption/encrypter.h
index 1a730269..6b53f186 100644
--- a/libraries/gtest/encryption/encrypter.h
+++ b/libraries/gtest/encryption/encrypter.h
@@ -3,6 +3,7 @@
 #include <openssl/err.h>
 #include <string.h>
 
+
 int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key, unsigned char *iv, unsigned char *ciphertext);
 int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, unsigned char *iv, unsigned char *plaintext);
 void handleErrors(void);
diff --git a/libraries/gtest/encryption/test_package/conanfile.py b/libraries/gtest/encryption/test_package/conanfile.py
index 8d36dd4b..e28d5e08 100644
--- a/libraries/gtest/encryption/test_package/conanfile.py
+++ b/libraries/gtest/encryption/test_package/conanfile.py
@@ -1,5 +1,5 @@
 from conans import ConanFile
-from conans import CMake
+from conans import CMake, RunEnvironment, tools
 
 
 class TestConanGTestExample(ConanFile):
@@ -18,5 +18,7 @@ def build(self):
         cmake.build()
 
     def test(self):
-        cmake = self._configure_cmake()
-        cmake.test()
+        env_build = RunEnvironment(self)
+        with tools.environment_append(env_build.vars):
+            cmake = self._configure_cmake()
+            cmake.test()

From 585ad883cb9a57c9f7f23ccec5b764595e09fa0a Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 27 Apr 2020 15:26:38 -0300
Subject: [PATCH 05/18] Force debug mode for gtest

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 features/integrate_build_system/build.py | 0
 features/makefiles/build.sh              | 0
 libraries/gtest/encryption/build.sh      | 4 ++--
 3 files changed, 2 insertions(+), 2 deletions(-)
 mode change 100644 => 100755 features/integrate_build_system/build.py
 mode change 100644 => 100755 features/makefiles/build.sh

diff --git a/features/integrate_build_system/build.py b/features/integrate_build_system/build.py
old mode 100644
new mode 100755
diff --git a/features/makefiles/build.sh b/features/makefiles/build.sh
old mode 100644
new mode 100755
diff --git a/libraries/gtest/encryption/build.sh b/libraries/gtest/encryption/build.sh
index 8b93d764..517caeb0 100755
--- a/libraries/gtest/encryption/build.sh
+++ b/libraries/gtest/encryption/build.sh
@@ -6,9 +6,9 @@ set -x
 rm -rf build source package
 
 conan source . --source-folder source
-conan install . --install-folder build
+conan install . --install-folder build -s build_type=Debug
 conan build . --source-folder source --build-folder build
 conan package . --source-folder source --build-folder build --package-folder package
 conan export-pkg . conan/testing --package-folder package
 
-conan test test_package conan-gtest-example/0.1.0@conan/testing
+conan test test_package conan-gtest-example/0.1.0@conan/testing -s build_type=Debug

From f0624c26f6debe59b69ddfd81d7cf700e647d874 Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 27 Apr 2020 15:36:13 -0300
Subject: [PATCH 06/18] Force mac os version

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 libraries/gtest/encryption/build.sh | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/libraries/gtest/encryption/build.sh b/libraries/gtest/encryption/build.sh
index 517caeb0..3da4a47e 100755
--- a/libraries/gtest/encryption/build.sh
+++ b/libraries/gtest/encryption/build.sh
@@ -5,10 +5,20 @@ set -x
 
 rm -rf build source package
 
-conan source . --source-folder source
-conan install . --install-folder build -s build_type=Debug
-conan build . --source-folder source --build-folder build
-conan package . --source-folder source --build-folder build --package-folder package
-conan export-pkg . conan/testing --package-folder package
+elif [[ "$OSTYPE" == "darwin"* ]]; then
+    conan source . --source-folder source
+    conan install . --install-folder build -s build_type=Debug --build missing -s os.version=10.13
+    conan build . --source-folder source --build-folder build
+    conan package . --source-folder source --build-folder build --package-folder package
+    conan export-pkg . conan/testing --package-folder package
 
-conan test test_package conan-gtest-example/0.1.0@conan/testing -s build_type=Debug
+    conan test test_package conan-gtest-example/0.1.0@conan/testing -s build_type=Debug --build missing -s os.version=10.13
+else
+    conan source . --source-folder source
+    conan install . --install-folder build -s build_type=Debug
+    conan build . --source-folder source --build-folder build
+    conan package . --source-folder source --build-folder build --package-folder package
+    conan export-pkg . conan/testing --package-folder package
+
+    conan test test_package conan-gtest-example/0.1.0@conan/testing -s build_type=Debug
+fi

From 62dad9e3d7725a83cf1644584635679890e2813d Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 27 Apr 2020 15:48:12 -0300
Subject: [PATCH 07/18] Force mac os version

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 libraries/gtest/encryption/build.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/gtest/encryption/build.sh b/libraries/gtest/encryption/build.sh
index 3da4a47e..bdcad9c6 100755
--- a/libraries/gtest/encryption/build.sh
+++ b/libraries/gtest/encryption/build.sh
@@ -5,7 +5,7 @@ set -x
 
 rm -rf build source package
 
-elif [[ "$OSTYPE" == "darwin"* ]]; then
+if [[ "$OSTYPE" == "darwin"* ]]; then
     conan source . --source-folder source
     conan install . --install-folder build -s build_type=Debug --build missing -s os.version=10.13
     conan build . --source-folder source --build-folder build

From 9c975d477a2f2d69c23bafa9eefcbbd870609dc1 Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 27 Apr 2020 16:03:08 -0300
Subject: [PATCH 08/18] Force mac os version 2

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 libraries/gtest/encryption/build.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libraries/gtest/encryption/build.sh b/libraries/gtest/encryption/build.sh
index bdcad9c6..37e26e3e 100755
--- a/libraries/gtest/encryption/build.sh
+++ b/libraries/gtest/encryption/build.sh
@@ -15,10 +15,10 @@ if [[ "$OSTYPE" == "darwin"* ]]; then
     conan test test_package conan-gtest-example/0.1.0@conan/testing -s build_type=Debug --build missing -s os.version=10.13
 else
     conan source . --source-folder source
-    conan install . --install-folder build -s build_type=Debug
+    conan install . --install-folder build -s build_type=Debug --build missing
     conan build . --source-folder source --build-folder build
     conan package . --source-folder source --build-folder build --package-folder package
     conan export-pkg . conan/testing --package-folder package
 
-    conan test test_package conan-gtest-example/0.1.0@conan/testing -s build_type=Debug
+    conan test test_package conan-gtest-example/0.1.0@conan/testing -s build_type=Debug --build missing
 fi

From 7ba41b63c5e7b224be839477cbc81ac6a4594792 Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 27 Apr 2020 17:13:01 -0300
Subject: [PATCH 09/18] Apply @sse4 patch

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 features/multi_config/conanfile.py            | 22 +++++++++----------
 features/multi_config/hello.cpp               |  2 +-
 .../multi_config/test_package/conanfile.py    |  2 ++
 libraries/protobuf/serialization/build.sh     |  2 +-
 4 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/features/multi_config/conanfile.py b/features/multi_config/conanfile.py
index a955e6b7..d2e5a8d9 100644
--- a/features/multi_config/conanfile.py
+++ b/features/multi_config/conanfile.py
@@ -28,22 +28,22 @@ def configure(self):
 
     def build(self):
         # Alternative 1: Use always default runtime (MD/MDd)
-        cmake_release = CMake(self, build_type="Debug")
+        cmake_debug = CMake(self, build_type="Debug")
         # Alternative 2: if you want to keep MD-MDd/MT-MTd configuration (uncomment section in CMakeLists.txt)
-        # cmake_release.defintions["CONAN_LINK_RUNTIME_MULTI"] = cmake_release.definitions["CONAN_LINK_RUNTIME"]
-        # cmake_release.definitions["CONAN_LINK_RUNTIME"] = False
-        cmake_release.configure()
-        cmake_release.build()
+        # cmake_debug.defintions["CONAN_LINK_RUNTIME_MULTI"] = cmake_debug.definitions["CONAN_LINK_RUNTIME"]
+        # cmake_debug.definitions["CONAN_LINK_RUNTIME"] = False
+        cmake_debug.configure(build_folder="Debug")
+        cmake_debug.build()
 
         if self.settings.os != "Windows":
-            print_strings(self, "lib/libhello_d.a", "DEBUG")
+            print_strings(self, "Debug/lib/libhello_d.a", "DEBUG")
 
-        cmake_debug = CMake(self, build_type="Release")
+        cmake_release = CMake(self, build_type="Release")
         # Alternative 2: if you want to keep MD-MDd/MT-MTd configuration (uncomment section in CMakeLists.txt)
-        # cmake_debug.defintions["CONAN_LINK_RUNTIME_MULTI"] = cmake_release.definitions["CONAN_LINK_RUNTIME"]
-        # cmake_debug.definitions["CONAN_LINK_RUNTIME"] = False
-        cmake_debug.configure()
-        cmake_debug.build()
+        # cmake_release.defintions["CONAN_LINK_RUNTIME_MULTI"] = cmake_release.definitions["CONAN_LINK_RUNTIME"]
+        # cmake_release.definitions["CONAN_LINK_RUNTIME"] = False
+        cmake_release.configure()
+        cmake_release.build()
 
         if self.settings.os != "Windows":
             print_strings(self, "lib/libhello.a", "RELEASE")
diff --git a/features/multi_config/hello.cpp b/features/multi_config/hello.cpp
index ac130ab6..8eb399fd 100644
--- a/features/multi_config/hello.cpp
+++ b/features/multi_config/hello.cpp
@@ -2,7 +2,7 @@
 #include "hello.h"
 
 void hello(){
-    #if !defined NDEBUG
+    #if !defined(NDEBUG)
         std::cout << "Hello World Debug!" << std::endl;
     #else
         std::cout << "Hello World Release!" << std::endl;
diff --git a/features/multi_config/test_package/conanfile.py b/features/multi_config/test_package/conanfile.py
index 025e3bcf..5ff12cbb 100644
--- a/features/multi_config/test_package/conanfile.py
+++ b/features/multi_config/test_package/conanfile.py
@@ -15,5 +15,7 @@ def build(self):
     def test(self):
         os.chdir("bin")
         output = StringIO()
+        if self.settings.build_type != 'Release':
+            return
         self.run(".%sexample" % os.sep, run_environment=True, output=output)
         assert ("Hello World {}!".format(str(self.settings.build_type)) in output.getvalue()), output.getvalue()
diff --git a/libraries/protobuf/serialization/build.sh b/libraries/protobuf/serialization/build.sh
index c4b20ab5..91e64408 100755
--- a/libraries/protobuf/serialization/build.sh
+++ b/libraries/protobuf/serialization/build.sh
@@ -7,7 +7,7 @@ rm -rf build
 mkdir build
 pushd build
 
-conan install ..
+conan install .. --build missing
 cmake .. -DCMAKE_BUILD_TYPE=Release
 cmake --build .
 

From 4a190f091680e74c32b7815d4fc73a17756f114a Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 27 Apr 2020 19:45:57 -0300
Subject: [PATCH 10/18] Revert "Apply @sse4 patch"

This reverts commit 7ba41b63c5e7b224be839477cbc81ac6a4594792.
---
 features/multi_config/conanfile.py            | 22 +++++++++----------
 features/multi_config/hello.cpp               |  2 +-
 .../multi_config/test_package/conanfile.py    |  2 --
 libraries/protobuf/serialization/build.sh     |  2 +-
 4 files changed, 13 insertions(+), 15 deletions(-)

diff --git a/features/multi_config/conanfile.py b/features/multi_config/conanfile.py
index d2e5a8d9..a955e6b7 100644
--- a/features/multi_config/conanfile.py
+++ b/features/multi_config/conanfile.py
@@ -28,23 +28,23 @@ def configure(self):
 
     def build(self):
         # Alternative 1: Use always default runtime (MD/MDd)
-        cmake_debug = CMake(self, build_type="Debug")
-        # Alternative 2: if you want to keep MD-MDd/MT-MTd configuration (uncomment section in CMakeLists.txt)
-        # cmake_debug.defintions["CONAN_LINK_RUNTIME_MULTI"] = cmake_debug.definitions["CONAN_LINK_RUNTIME"]
-        # cmake_debug.definitions["CONAN_LINK_RUNTIME"] = False
-        cmake_debug.configure(build_folder="Debug")
-        cmake_debug.build()
-
-        if self.settings.os != "Windows":
-            print_strings(self, "Debug/lib/libhello_d.a", "DEBUG")
-
-        cmake_release = CMake(self, build_type="Release")
+        cmake_release = CMake(self, build_type="Debug")
         # Alternative 2: if you want to keep MD-MDd/MT-MTd configuration (uncomment section in CMakeLists.txt)
         # cmake_release.defintions["CONAN_LINK_RUNTIME_MULTI"] = cmake_release.definitions["CONAN_LINK_RUNTIME"]
         # cmake_release.definitions["CONAN_LINK_RUNTIME"] = False
         cmake_release.configure()
         cmake_release.build()
 
+        if self.settings.os != "Windows":
+            print_strings(self, "lib/libhello_d.a", "DEBUG")
+
+        cmake_debug = CMake(self, build_type="Release")
+        # Alternative 2: if you want to keep MD-MDd/MT-MTd configuration (uncomment section in CMakeLists.txt)
+        # cmake_debug.defintions["CONAN_LINK_RUNTIME_MULTI"] = cmake_release.definitions["CONAN_LINK_RUNTIME"]
+        # cmake_debug.definitions["CONAN_LINK_RUNTIME"] = False
+        cmake_debug.configure()
+        cmake_debug.build()
+
         if self.settings.os != "Windows":
             print_strings(self, "lib/libhello.a", "RELEASE")
 
diff --git a/features/multi_config/hello.cpp b/features/multi_config/hello.cpp
index 8eb399fd..ac130ab6 100644
--- a/features/multi_config/hello.cpp
+++ b/features/multi_config/hello.cpp
@@ -2,7 +2,7 @@
 #include "hello.h"
 
 void hello(){
-    #if !defined(NDEBUG)
+    #if !defined NDEBUG
         std::cout << "Hello World Debug!" << std::endl;
     #else
         std::cout << "Hello World Release!" << std::endl;
diff --git a/features/multi_config/test_package/conanfile.py b/features/multi_config/test_package/conanfile.py
index 5ff12cbb..025e3bcf 100644
--- a/features/multi_config/test_package/conanfile.py
+++ b/features/multi_config/test_package/conanfile.py
@@ -15,7 +15,5 @@ def build(self):
     def test(self):
         os.chdir("bin")
         output = StringIO()
-        if self.settings.build_type != 'Release':
-            return
         self.run(".%sexample" % os.sep, run_environment=True, output=output)
         assert ("Hello World {}!".format(str(self.settings.build_type)) in output.getvalue()), output.getvalue()
diff --git a/libraries/protobuf/serialization/build.sh b/libraries/protobuf/serialization/build.sh
index 91e64408..c4b20ab5 100755
--- a/libraries/protobuf/serialization/build.sh
+++ b/libraries/protobuf/serialization/build.sh
@@ -7,7 +7,7 @@ rm -rf build
 mkdir build
 pushd build
 
-conan install .. --build missing
+conan install ..
 cmake .. -DCMAKE_BUILD_TYPE=Release
 cmake --build .
 

From d2774700ea65dc808315900afadc652a28909c3a Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 27 Apr 2020 19:47:19 -0300
Subject: [PATCH 11/18] Build only GTest

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 .ci/run.py | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/.ci/run.py b/.ci/run.py
index bcb756e1..d440c5e4 100644
--- a/.ci/run.py
+++ b/.ci/run.py
@@ -29,7 +29,7 @@ def is_appveyor():
 
 def appveyor_image():
     return os.getenv("APPVEYOR_BUILD_WORKER_IMAGE","")
-    
+
 
 @contextmanager
 def chdir(dir_path):
@@ -100,8 +100,10 @@ def get_build_list():
         build = [it for it in files if "build.py" in it]
         if not build:
             build = [it for it in files if os.path.basename(it) == script]
-        
+
         if build:
+            if "gtest" not in root:
+                continue
             builds.append(os.path.join(root, build[0]))
             dirs[:] = []
             continue
@@ -189,18 +191,18 @@ def run_scripts(scripts):
         with chdir(os.path.dirname(script)):
             print_build(script)
             build_script = [sys.executable, abspath] if abspath.endswith(".py") else abspath
-            
+
             # Need to initialize the cache with default files if they are not already there
             try:
                 subprocess.call(['conan', 'install', 'foobar/foobar@conan/stable'], env=env,
                                 stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
             except:
                 pass
- 
+
             with ensure_python_environment_preserved():
                 with ensure_cache_preserved():
                     result = subprocess.call(build_script, env=env)
-                
+
             results[script] = result
             if result != 0 and FAIL_FAST:
                 break

From c104b3a4bf2f6a3f0abb64dc915c3718bac7f1da Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Mon, 27 Apr 2020 21:59:59 -0300
Subject: [PATCH 12/18] Disable Linux on CI

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 .travis.yml | 43 +------------------------------------------
 1 file changed, 1 insertion(+), 42 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 55b61216..05e59454 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,47 +6,6 @@ jobs:
   fast_finish: true
   include:
 
-    - stage: Linux - Conan develop
-      name: Python 3.5
-      python: 3.5
-      env: TOXENV=py35-conandev
-      dist: xenial
-    - name: Python 3.8
-      python: 3.8
-      env: TOXENV=py38-conandev
-      dist: xenial
-
-    # All Linux first, check versions
-    - stage: Linux - Conan Current
-      name: Python 3.5
-      python: 3.5
-      env: TOXENV=py35-conancurrent
-      dist: xenial
-    - name: Python 3.8
-      python: 3.8
-      env: TOXENV=py38-conancurrent
-      dist: xenial
-
-    - stage: Linux - Conan 1.23
-      name: Python 3.5
-      python: 3.5
-      env: TOXENV=py35-conan123
-      dist: xenial
-    - name: Python 3.8
-      python: 3.8
-      env: TOXENV=py38-conan123
-      dist: xenial
-
-    - stage: Linux - Conan 1.22
-      name: Python 3.5
-      python: 3.5
-      env: TOXENV=py35-conan122
-      dist: xenial
-    - name: Python 3.8
-      python: 3.8
-      env: TOXENV=py38-conan122
-      dist: xenial
-
     # Macos is slow, only if everything has passed
     - stage: Macos - All Conan versions
       name: Conan develop - Python 3.8
@@ -67,7 +26,7 @@ jobs:
 
 before_install:
   - ./.ci/travis/before_install.sh
-  
+
 install:
   - |
     if [[ "$(uname -s)" == 'Darwin' ]]; then

From 1036136cb7d9d4a27744bb47272ca2b89067faaa Mon Sep 17 00:00:00 2001
From: SSE4 <tomskside@gmail.com>
Date: Tue, 28 Apr 2020 19:46:39 +0700
Subject: [PATCH 13/18] - improve error messages

Signed-off-by: SSE4 <tomskside@gmail.com>
---
 .gitignore                               |  3 +++
 libraries/gtest/encryption/build.sh      |  4 ++--
 libraries/gtest/encryption/encrypter.cpp | 22 ++++++++++++----------
 3 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/.gitignore b/.gitignore
index 13918373..8f881759 100644
--- a/.gitignore
+++ b/.gitignore
@@ -53,3 +53,6 @@ libraries/poco/md5/build/*
 .pydevproject
 .settings/*
 .ropeproject/*
+
+.tox
+.python-version
diff --git a/libraries/gtest/encryption/build.sh b/libraries/gtest/encryption/build.sh
index 37e26e3e..f7099562 100755
--- a/libraries/gtest/encryption/build.sh
+++ b/libraries/gtest/encryption/build.sh
@@ -10,7 +10,7 @@ if [[ "$OSTYPE" == "darwin"* ]]; then
     conan install . --install-folder build -s build_type=Debug --build missing -s os.version=10.13
     conan build . --source-folder source --build-folder build
     conan package . --source-folder source --build-folder build --package-folder package
-    conan export-pkg . conan/testing --package-folder package
+    conan export-pkg . conan/testing --package-folder package --force
 
     conan test test_package conan-gtest-example/0.1.0@conan/testing -s build_type=Debug --build missing -s os.version=10.13
 else
@@ -18,7 +18,7 @@ else
     conan install . --install-folder build -s build_type=Debug --build missing
     conan build . --source-folder source --build-folder build
     conan package . --source-folder source --build-folder build --package-folder package
-    conan export-pkg . conan/testing --package-folder package
+    conan export-pkg . conan/testing --package-folder package --force
 
     conan test test_package conan-gtest-example/0.1.0@conan/testing -s build_type=Debug --build missing
 fi
diff --git a/libraries/gtest/encryption/encrypter.cpp b/libraries/gtest/encryption/encrypter.cpp
index db735616..0ee79ce7 100644
--- a/libraries/gtest/encryption/encrypter.cpp
+++ b/libraries/gtest/encryption/encrypter.cpp
@@ -10,7 +10,7 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key, uns
   int ciphertext_len;
 
   /* Create and initialise the context */
-  if(!(ctx = EVP_CIPHER_CTX_new())) handleErrors();
+  if(!(ctx = EVP_CIPHER_CTX_new())) handleErrors("(encrypt) EVP_CIPHER_CTX_new");
 
   /* Initialise the encryption operation. IMPORTANT - ensure you use a key
    * and IV size appropriate for your cipher
@@ -18,19 +18,19 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key, uns
    * IV size for *most* modes is the same as the block size. For AES this
    * is 128 bits */
   if(1 != EVP_EncryptInit_ex(ctx, EVP_aes_256_cbc(), NULL, key, iv))
-    handleErrors();
+    handleErrors("(encrypt) EVP_EncryptInit_ex");
 
   /* Provide the message to be encrypted, and obtain the encrypted output.
    * EVP_EncryptUpdate can be called multiple times if necessary
    */
   if(1 != EVP_EncryptUpdate(ctx, ciphertext, &len, plaintext, plaintext_len))
-    handleErrors();
+    handleErrors("(encrypt) EVP_EncryptUpdate");
   ciphertext_len = len;
 
   /* Finalise the encryption. Further ciphertext bytes may be written at
    * this stage.
    */
-  if(1 != EVP_EncryptFinal_ex(ctx, ciphertext + len, &len)) handleErrors();
+  if(1 != EVP_EncryptFinal_ex(ctx, ciphertext + len, &len)) handleErrors("(encrypt) EVP_EncryptFinal_ex");
   ciphertext_len += len;
 
   /* Clean up */
@@ -48,7 +48,7 @@ int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, u
   int plaintext_len;
 
   /* Create and initialise the context */
-  if(!(ctx = EVP_CIPHER_CTX_new())) handleErrors();
+  if(!(ctx = EVP_CIPHER_CTX_new())) handleErrors("(decrypt) EVP_CIPHER_CTX_new");
 
   /* Initialise the decryption operation. IMPORTANT - ensure you use a key
    * and IV size appropriate for your cipher
@@ -56,19 +56,19 @@ int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, u
    * IV size for *most* modes is the same as the block size. For AES this
    * is 128 bits */
   if(1 != EVP_DecryptInit_ex(ctx, EVP_aes_256_cbc(), NULL, key, iv))
-    handleErrors();
+    handleErrors("(decrypt) EVP_DecryptInitEx");
 
   /* Provide the message to be decrypted, and obtain the plaintext output.
    * EVP_DecryptUpdate can be called multiple times if necessary
    */
   if(1 != EVP_DecryptUpdate(ctx, plaintext, &len, ciphertext, ciphertext_len))
-    handleErrors();
+    handleErrors("(decrypt) EVP_DecryptUpdate");
   plaintext_len = len;
 
   /* Finalise the decryption. Further plaintext bytes may be written at
    * this stage.
    */
-  if(1 != EVP_DecryptFinal_ex(ctx, plaintext + len, &len)) handleErrors();
+  if(1 != EVP_DecryptFinal_ex(ctx, plaintext + len, &len)) handleErrors("(decrypt) EVP_DecryptFinal_ex");
   plaintext_len += len;
 
   /* Clean up */
@@ -77,7 +77,9 @@ int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, u
   return plaintext_len;
 }
 
-void handleErrors(void){
+void handleErrors(const char * message){
+  fprintf(stderr, "%s\n", message);
   ERR_print_errors_fp(stderr);
+  fflush(stderr);
   abort();
-}
\ No newline at end of file
+}

From d5a6bec70f83e968205b12f1005495e6162b5bc6 Mon Sep 17 00:00:00 2001
From: SSE4 <tomskside@gmail.com>
Date: Tue, 28 Apr 2020 19:48:18 +0700
Subject: [PATCH 14/18] - forget to commit file

Signed-off-by: SSE4 <tomskside@gmail.com>
---
 libraries/gtest/encryption/encrypter.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/gtest/encryption/encrypter.h b/libraries/gtest/encryption/encrypter.h
index 6b53f186..468e6775 100644
--- a/libraries/gtest/encryption/encrypter.h
+++ b/libraries/gtest/encryption/encrypter.h
@@ -6,5 +6,5 @@
 
 int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key, unsigned char *iv, unsigned char *ciphertext);
 int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key, unsigned char *iv, unsigned char *plaintext);
-void handleErrors(void);
+void handleErrors(const char *);
 

From 44917d1e39019c8346e8948546a5e1f08d9db261 Mon Sep 17 00:00:00 2001
From: SSE4 <tomskside@gmail.com>
Date: Tue, 28 Apr 2020 20:09:08 +0700
Subject: [PATCH 15/18] - get the test output

Signed-off-by: SSE4 <tomskside@gmail.com>
---
 libraries/gtest/encryption/test_package/conanfile.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libraries/gtest/encryption/test_package/conanfile.py b/libraries/gtest/encryption/test_package/conanfile.py
index e28d5e08..6710e1aa 100644
--- a/libraries/gtest/encryption/test_package/conanfile.py
+++ b/libraries/gtest/encryption/test_package/conanfile.py
@@ -18,7 +18,8 @@ def build(self):
         cmake.build()
 
     def test(self):
+        os.environ["CTEST_OUTPUT_ON_FAILURE"] = "1"
         env_build = RunEnvironment(self)
         with tools.environment_append(env_build.vars):
             cmake = self._configure_cmake()
-            cmake.test()
+            cmake.test(output_on_failure=True)

From 7ae03824733146581b859a1a436adfc6385a21c7 Mon Sep 17 00:00:00 2001
From: SSE4 <tomskside@gmail.com>
Date: Tue, 28 Apr 2020 20:28:37 +0700
Subject: [PATCH 16/18] Update conanfile.py

---
 libraries/gtest/encryption/test_package/conanfile.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/gtest/encryption/test_package/conanfile.py b/libraries/gtest/encryption/test_package/conanfile.py
index 6710e1aa..678f9279 100644
--- a/libraries/gtest/encryption/test_package/conanfile.py
+++ b/libraries/gtest/encryption/test_package/conanfile.py
@@ -1,6 +1,6 @@
 from conans import ConanFile
 from conans import CMake, RunEnvironment, tools
-
+import os
 
 class TestConanGTestExample(ConanFile):
     settings = "os", "compiler", "arch", "build_type"

From f5c836d38f706155d7c032966331d5362818487f Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Tue, 12 May 2020 17:32:41 -0300
Subject: [PATCH 17/18] Update test package for gtest

Signed-off-by: Uilian Ries <uilianries@gmail.com>
---
 libraries/gtest/encryption/test_package/CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/gtest/encryption/test_package/CMakeLists.txt b/libraries/gtest/encryption/test_package/CMakeLists.txt
index a933f7cd..a7fc725e 100644
--- a/libraries/gtest/encryption/test_package/CMakeLists.txt
+++ b/libraries/gtest/encryption/test_package/CMakeLists.txt
@@ -9,6 +9,7 @@ CONAN_BASIC_SETUP()
 ADD_EXECUTABLE(${PROJECT_NAME} encryption_test.cpp)
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${CONAN_LIBS})
 SET_PROPERTY(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 11)
+SET_PROPERTY(TARGET ${PROJECT_NAME} PROPERTY ENVIRONMENT "DYLD_LIBRARY_PATH=${GTest_LIB_DIRS}")
 
 # Include Encryptor test #######################################################
 ENABLE_TESTING()

From dbe36413fc7e3978863e4383530e9ea6ce453bdd Mon Sep 17 00:00:00 2001
From: Uilian Ries <uilianries@gmail.com>
Date: Wed, 20 May 2020 11:28:29 -0300
Subject: [PATCH 18/18] Update
 libraries/gtest/encryption/test_package/CMakeLists.txt

---
 libraries/gtest/encryption/test_package/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/gtest/encryption/test_package/CMakeLists.txt b/libraries/gtest/encryption/test_package/CMakeLists.txt
index a7fc725e..52fe9bca 100644
--- a/libraries/gtest/encryption/test_package/CMakeLists.txt
+++ b/libraries/gtest/encryption/test_package/CMakeLists.txt
@@ -9,7 +9,7 @@ CONAN_BASIC_SETUP()
 ADD_EXECUTABLE(${PROJECT_NAME} encryption_test.cpp)
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${CONAN_LIBS})
 SET_PROPERTY(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 11)
-SET_PROPERTY(TARGET ${PROJECT_NAME} PROPERTY ENVIRONMENT "DYLD_LIBRARY_PATH=${GTest_LIB_DIRS}")
+SET_PROPERTY(TARGET ${PROJECT_NAME} PROPERTY ENVIRONMENT "DYLD_LIBRARY_PATH=${CONAN_LIB_DIRS_GTEST}")
 
 # Include Encryptor test #######################################################
 ENABLE_TESTING()