diff --git a/CMakeLists.txt b/CMakeLists.txt
index 38030f7..67b7888 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,6 +41,8 @@ add_test(NAME zpp-to-yaml WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/test/zpp-to-ya
   COMMAND sh -c "${CMAKE_BINARY_DIR}/ufo zpp-to-yaml < data.zpp > data.yaml")
 add_test(NAME project-to-mode WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/test/project-to-mode
   COMMAND ufo project-to-mode config.yaml)
+add_test(NAME project-to-atom WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/test/project-to-atom
+  COMMAND ufo project-to-atom config.yaml)
 add_test(NAME raman-create-displacement WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/test/raman-create-displacement
   COMMAND ufo raman-create-displacement config.yaml)
 add_test(NAME raman-extract WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/test/raman-extract
diff --git a/test/project-to-atom/.gitignore b/test/project-to-atom/.gitignore
new file mode 100644
index 0000000..765eecc
--- /dev/null
+++ b/test/project-to-atom/.gitignore
@@ -0,0 +1 @@
+output.zpp
\ No newline at end of file
diff --git a/test/project-to-atom/config.yaml b/test/project-to-atom/config.yaml
new file mode 100644
index 0000000..b3e60da
--- /dev/null
+++ b/test/project-to-atom/config.yaml
@@ -0,0 +1,3 @@
+SelectedAtom: [0, 2, 4]
+InputFile: input.zpp
+OutputFile: output.zpp
diff --git a/test/project-to-atom/input.zpp b/test/project-to-atom/input.zpp
new file mode 100644
index 0000000..321c74e
--- /dev/null
+++ b/test/project-to-atom/input.zpp
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ee28fae9b62c0c1f754294a662ba81e7de0e32cd09b8c60db1aae274b8522765
+size 2921536