Add unit test for AppDir::deployExecutable

tests/AppDirUnitTests.cpp

@@ -87,4 +87,28 @@ namespace AppDirUnitTests {
         if (!libsimple_library_found)
             FAIL();
     }
+
+    TEST_F(AppDirUnitTestsFixture, deployExecutable) {
+        path exePath = SIMPLE_EXECUTABLE_PATH;
+        appDir.deployExecutable(exePath);
+        appDir.executeDeferredOperations();
+
+        bool libsimple_library_found = false;
+        bool simple_executable_found = false;
+        recursive_directory_iterator end_itr; // default construction yields past-the-end
+        for (recursive_directory_iterator itr(tmpAppDir);
+             itr != end_itr && (!libsimple_library_found || !simple_executable_found);
+             itr++) {
+            const auto path = relative(itr->path(), tmpAppDir).filename().string();
+
+            if (path.find("libsimple_library") != std::string::npos)
+                libsimple_library_found = true;
+
+            if (path.find("simple_executable") != std::string::npos)
+                simple_executable_found = true;
+        }
+
+        if (!libsimple_library_found || !simple_executable_found)
+            FAIL();
+    }
 }

tests/CMakeLists.txt

@@ -3,11 +3,16 @@ if(NOT TARGET gtest)
 endif()
 
 add_subdirectory(simple_library)
+add_subdirectory(simple_executable)
 
 add_executable(AppDirUnitTests AppDirUnitTests.cpp)
 target_link_libraries(AppDirUnitTests PRIVATE linuxdeploy_core)
 target_include_directories(AppDirUnitTests PRIVATE ${PROJECT_SOURCE_DIR}/include)
-target_compile_definitions(AppDirUnitTests PRIVATE -DSIMPLE_LIBRARY_PATH="$<TARGET_LINKER_FILE:simple_library>")
+
+target_compile_definitions(AppDirUnitTests PRIVATE
+    -DSIMPLE_LIBRARY_PATH="$<TARGET_FILE:simple_library>"
+    -DSIMPLE_EXECUTABLE_PATH="$<TARGET_FILE:simple_executable>"
+    )
 
 add_gtest(AppDirUnitTests)
-add_dependencies(AppDirUnitTests simple_library)
+add_dependencies(AppDirUnitTests simple_library simple_executable)

tests/simple_executable/CMakeLists.txt

@@ -0,0 +1,2 @@
+add_executable(simple_executable simple_executable.cpp)
+target_link_libraries(simple_executable simple_library pthread)

tests/simple_executable/simple_executable.cpp

@@ -0,0 +1,10 @@
+#include <cstdio>
+
+extern "C" { void hello_world(); }
+
+int main() {
+    printf("Hello World");
+    hello_world();
+
+    return 0;
+}

tests/simple_library/CMakeLists.txt

@@ -1,2 +1,2 @@
 add_library(simple_library SHARED simple_library.cpp)
-target_link_libraries(simple_library cairo)
+target_link_libraries(simple_library CImg)