1 files changed, 49 insertions, 0 deletions
diff --git a/test/Bindings/OCaml/bitwriter.ml b/test/Bindings/OCaml/bitwriter.ml
new file mode 100644
index 0000000..7c803f6
--- /dev/null
+++ b/test/Bindings/OCaml/bitwriter.ml
@@ -0,0 +1,49 @@
+(* RUN: cp %s %T/bitwriter.ml
+ * RUN: %ocamlc -g -w -3 -warn-error A -package llvm.bitreader -package llvm.bitwriter -linkpkg %T/bitwriter.ml -o %t
+ * RUN: %t %t.bc
+ * RUN: %ocamlopt -g -w -3 -warn-error A -package llvm.bitreader -package llvm.bitwriter -linkpkg %T/bitwriter.ml -o %t
+ * RUN: %t %t.bc
+ * RUN: llvm-dis < %t.bc
+ * XFAIL: vg_leak
+ *)
+
+(* Note that this takes a moment to link, so it's best to keep the number of
+   individual tests low. *)
+
+let context = Llvm.global_context ()
+
+let test x = if not x then exit 1 else ()
+
+let read_file name =
+  let ic = open_in_bin name in
+  let len = in_channel_length ic in
+  let buf = String.create len in
+
+  test ((input ic buf 0 len) = len);
+
+  close_in ic;
+
+  buf
+
+let temp_bitcode ?unbuffered m =
+  let temp_name, temp_oc = Filename.open_temp_file ~mode:[Open_binary] "" "" in
+
+  test (Llvm_bitwriter.output_bitcode ?unbuffered temp_oc m);
+  flush temp_oc;
+
+  let temp_buf = read_file temp_name in
+
+  close_out temp_oc;
+
+  temp_buf
+
+let _ =
+  let m = Llvm.create_module context "ocaml_test_module" in
+
+  test (Llvm_bitwriter.write_bitcode_file m Sys.argv.(1));
+  let file_buf = read_file Sys.argv.(1) in
+
+  test (file_buf = temp_bitcode m);
+  test (file_buf = temp_bitcode ~unbuffered:false m);
+  test (file_buf = temp_bitcode ~unbuffered:true m);
+  test (file_buf = Llvm.MemoryBuffer.as_string (Llvm_bitwriter.write_bitcode_to_memory_buffer m))