--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancServer/UnitTestsSources/PluginsTests.cpp	Wed Jun 10 21:27:31 2020 +0200
@@ -0,0 +1,117 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2020 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "PrecompiledHeadersUnitTests.h"
+#include "gtest/gtest.h"
+
+#include "../../OrthancFramework/Sources/OrthancException.h"
+#include "../Plugins/Engine/PluginsManager.h"
+
+using namespace Orthanc;
+
+
+#if ORTHANC_ENABLE_PLUGINS == 1
+
+TEST(SharedLibrary, Enumerations)
+{
+  // The plugin engine cannot work if the size of an enumeration does
+  // not correspond to the size of "int32_t"
+  ASSERT_EQ(sizeof(int32_t), sizeof(OrthancPluginErrorCode));
+}
+
+
+TEST(SharedLibrary, Basic)
+{
+#if defined(_WIN32)
+  SharedLibrary l("kernel32.dll");
+  ASSERT_THROW(l.GetFunction("world"), OrthancException);
+  ASSERT_TRUE(l.GetFunction("GetVersionExW") != NULL);
+  ASSERT_TRUE(l.HasFunction("GetVersionExW"));
+  ASSERT_FALSE(l.HasFunction("world"));
+
+#elif defined(__LSB_VERSION__)
+  // For Linux Standard Base, we use a low-level shared library coming
+  // with glibc:
+  // http://www.linuxfromscratch.org/lfs/view/6.5/chapter06/glibc.html
+  SharedLibrary l("libSegFault.so");
+  ASSERT_THROW(l.GetFunction("world"), OrthancException);
+  ASSERT_FALSE(l.HasFunction("world"));
+
+  /**
+   * On the Docker image "debian:buster-slim", the "libSegFault.so"
+   * library does exist, but does not contain any public symbol:
+   * 
+   *  $ sudo docker run -i -t --rm --entrypoint=bash debian:buster-slim
+   *  # apt-get update && apt-get install -y binutils
+   *  # nm -C /lib/x86_64-linux-gnu/libSegFault.so
+   *  nm: /lib/x86_64-linux-gnu/libSegFault.so: no symbols
+   *
+   * As a consequence, this part of the test is disabled since Orthanc
+   * 1.5.1, until we locate another shared library that is widely
+   * spread. Reference:
+   * https://groups.google.com/d/msg/orthanc-users/v-QFzpOzgJY/4Hm5NgxKBwAJ
+   **/
+  
+  //ASSERT_TRUE(l.GetFunction("_init") != NULL);
+  //ASSERT_TRUE(l.HasFunction("_init"));
+  
+#elif defined(__linux__) || defined(__FreeBSD_kernel__)
+  SharedLibrary l("libdl.so");
+  ASSERT_THROW(l.GetFunction("world"), OrthancException);
+  ASSERT_TRUE(l.GetFunction("dlopen") != NULL);
+  ASSERT_TRUE(l.HasFunction("dlclose"));
+  ASSERT_FALSE(l.HasFunction("world"));
+
+#elif defined(__FreeBSD__) || defined(__OpenBSD__)
+  // dlopen() in FreeBSD/OpenBSD is supplied by libc, libc.so is
+  // a ldscript, so we can't actually use it. Use thread
+  // library instead - if it works - dlopen() is good.
+  SharedLibrary l("libpthread.so");
+  ASSERT_THROW(l.GetFunction("world"), OrthancException);
+  ASSERT_TRUE(l.GetFunction("pthread_create") != NULL);
+  ASSERT_TRUE(l.HasFunction("pthread_cancel"));
+  ASSERT_FALSE(l.HasFunction("world"));
+
+#elif defined(__APPLE__) && defined(__MACH__)
+  SharedLibrary l("libdl.dylib");
+  ASSERT_THROW(l.GetFunction("world"), OrthancException);
+  ASSERT_TRUE(l.GetFunction("dlopen") != NULL);
+  ASSERT_TRUE(l.HasFunction("dlclose"));
+  ASSERT_FALSE(l.HasFunction("world"));
+
+#else
+#error Support your platform here
+#endif
+}
+
+#endif