diff --git a/dune-project b/dune-project
index f63ebd6..428891d 100644
--- a/dune-project
+++ b/dune-project
@@ -1,4 +1,5 @@
 (lang dune 3.9)
+(cram enable)
 
 (name stringCodepointSplitter)
 (version 0.0.1)
diff --git a/test/dune b/test/dune
index abafc95..0caa2b6 100644
--- a/test/dune
+++ b/test/dune
@@ -1,2 +1,6 @@
-(test
- (name stringCodepointSplitter))
+(executable
+ (libraries stringCodepointSplitter)
+ (name stringCodepointSplitterTest))
+
+(cram
+ (deps ./stringCodepointSplitterTest.exe))
diff --git a/test/stringCodepointSplitter.ml b/test/stringCodepointSplitter.ml
deleted file mode 100644
index e69de29..0000000
diff --git a/test/stringCodepointSplitter.t b/test/stringCodepointSplitter.t
new file mode 100644
index 0000000..f50da59
--- /dev/null
+++ b/test/stringCodepointSplitter.t
@@ -0,0 +1,11 @@
+ASCII only
+  $ ./stringCodepointSplitterTest.exe abc
+  a
+  b
+  c
+
+Still simple but not just ASCII
+  $ ./stringCodepointSplitterTest.exe «—»
+  «
+  —
+  »
diff --git a/test/stringCodepointSplitterTest.ml b/test/stringCodepointSplitterTest.ml
new file mode 100644
index 0000000..76105fe
--- /dev/null
+++ b/test/stringCodepointSplitterTest.ml
@@ -0,0 +1,4 @@
+let () =
+  Sys.argv.(1)
+  |> StringCodepointSplitter.split_string_by_unicode_codepoint
+  |> List.iter print_endline