ripple/fossil: add read_write test

Change-Id: I88d13d9dd7055b8370706df7b3dd4479a0891399

1 files changed, 18 insertions, 0 deletions

diff --git a/ripple/fossil/src/lib.rs b/ripple/fossil/src/lib.rs
index 37df3bd..d7818cd 100644
--- a/ripple/fossil/src/lib.rs
+++ b/ripple/fossil/src/lib.rs
@@ -242,3 +242,21 @@ pub fn digest_from_bytes(bytes: &[u8]) -> Digest {
 	buffer.copy_from_slice(bytes);
 	buffer.into()
 }
+
+#[test]
+/// Write a blob, and read it back.
+fn read_write() {
+	let data = {
+		let mut h = blake3::Hasher::new();
+		h.update(b"test vector");
+
+		let mut buf = Vec::new();
+		h.finalize_xof().take(2468).read_to_end(&mut buf).unwrap();
+		buf
+	};
+
+	// TODO(edef): use a temporary file
+	let store = Store::open("fossil.db").unwrap();
+	let ident = store.write_blob(&data);
+	assert_eq!(data, store.read_blob(ident));
+}