[A] Add package installation test

.travis.yml

@@ -255,6 +255,20 @@ script:
   #     scan-build make ;
   #   fi
 
+  # Test package installation
+  - cd ..
+  - rm -r build/*
+  - cmake -H. -Bbuild -DCMAKE_C_STANDARD=99 -DCMAKE_CXX_STANDARD=11 -DCMAKE_INSTALL_PREFIX=`pwd`/install
+  - cmake --build build --target all
+  - cmake --build build -- install
+  - ls `pwd`/install
+  - cd tests/package_tests
+  - cmake -H. -B_build -DCMAKE_PREFIX_PATH=../../install -DCMAKE_C_STANDARD=99 -DCMAKE_CXX_STANDARD=11
+  - cmake --build _build -- -j3
+  - ./_build/app
+  - rm -rf _build
+  - cd ../../build
+
   # Build for coveralls (should be the last)
   - |
     if [ "${CC}" = 'gcc' ]; then

tests/package_tests/1-simple_table.cpp

@@ -0,0 +1,16 @@
+#include <iostream>
+
+#include "fort.hpp"
+
+
+int main()
+{
+    fort::char_table table;
+    table << fort::header
+        << "N" << "Driver" << "Time" << "Avg Speed" << fort::endr
+        << "1" << "Ricciardo" << "1:25.945" << "47.362" << fort::endr
+        << "2" << "Hamilton" << "1:26.373" << "35.02" << fort::endr
+        << "3" << "Verstappen" << "1:26.469" << "29.78" << fort::endr;
+
+    std::cout << table.to_string() << std::endl;
+}

tests/package_tests/CMakeLists.txt

@@ -0,0 +1,23 @@
+cmake_minimum_required(VERSION 3.0)
+
+find_package(libfort)
+
+# Assert exports of libfort
+if (NOT libfort_FOUND)
+	message(FATAL_ERROR "libfort was not found")
+endif()
+if (NOT TARGET libfort::fort)
+	message(FATAL_ERROR "TARGET libfort::fort not found")
+endif()
+if (NOT DEFINED libfort_LIBRARIES)
+	message(FATAL_ERROR "libfort_LIBRARIES are not defined")
+endif()
+if (NOT ${libfort_VERSION} EQUAL "0.4.0")
+	message(FATAL_ERROR "libfort_VERSION is incorrect")
+endif()
+
+add_executable(app 
+    1-simple_table.cpp)
+
+target_link_libraries(app
+    libfort::fort)