Add simple test for CI build workflow

CMakeLists.txt

@@ -542,3 +542,15 @@ install (TARGETS ${DYNAMIC_LIB_NAME}
 		LIBRARY DESTINATION lib
 		ARCHIVE DESTINATION lib
 )
+
+# -----------------------------------------------------------------------------
+# |                                  TESTS                                    |
+# -----------------------------------------------------------------------------
+
+add_executable (errortest ${PROJ_DIR}/test/error.cpp)
+target_link_libraries(errortest ${STATIC_LIB_NAME})
+
+project (TEST)
+#add_subdirectory (test)
+enable_testing ()
+add_test (NAME MyTest COMMAND errortest)

dist.sh

@@ -289,8 +289,8 @@ host_pinvoke()
 	cmake -DZTS_PINVOKE=True -H. -B$BUILD_DIR -DCMAKE_BUILD_TYPE=$1
 	$CMAKE --build $BUILD_DIR $BUILD_CONCURRENCY
 	# Move and clean up
-	mv $BUILD_DIR/bin/* $BIN_OUTPUT_DIR
-	mv $BUILD_DIR/lib/* $LIB_OUTPUT_DIR
+	cp -f $BUILD_DIR/bin/* $BIN_OUTPUT_DIR
+	cp -f $BUILD_DIR/lib/* $LIB_OUTPUT_DIR
 	clean_post_build
 }
 
@@ -320,8 +320,8 @@ host()
 	$CMAKE -H. -B$BUILD_DIR -DCMAKE_BUILD_TYPE=$1
 	$CMAKE --build $BUILD_DIR $BUILD_CONCURRENCY
 	# Move and clean up
-	mv $BUILD_DIR/bin/* $BIN_OUTPUT_DIR
-	mv $BUILD_DIR/lib/* $LIB_OUTPUT_DIR
+	cp -f $BUILD_DIR/bin/* $BIN_OUTPUT_DIR
+	cp -f $BUILD_DIR/lib/* $LIB_OUTPUT_DIR
 	clean_post_build
 }
 

test/error.cpp

@@ -0,0 +1,12 @@
+/**
+ * Demonstrate that we can compile, link, and run an application
+ * with libzt and successfully get an error from the socket API.
+ */
+
+#include <cstdlib>
+#include <ZeroTierSockets.h>
+
+int main()
+{
+	return zts_socket(0,0,0) != -2; // We expect -2 from an uninitialized libzt instance
+}