Add some tests

Cargo.toml

@@ -21,3 +21,7 @@ serde = "1.0.136"
 serde_bare = "0.5.0"
 
 ouroboros = "0.14.2"
+
+
+[dev-dependencies]
+tempfile = "3.3.0"

src/lib.rs

@@ -3,10 +3,4 @@ pub mod environment;
 pub mod wrapper;
 
 #[cfg(test)]
-mod tests {
-    #[test]
-    fn it_works() {
-        let result = 2 + 2;
-        assert_eq!(result, 4);
-    }
-}
+mod tests;

src/tests.rs

@@ -0,0 +1,48 @@
+use crate::environment::Env;
+use tempfile::NamedTempFile;
+
+fn temp_env() -> Env {
+    let tempfile = NamedTempFile::new().unwrap();
+    Env::open(tempfile.path()).unwrap()
+}
+
+#[test]
+fn test_raw_bytes_basics() {
+    let env = temp_env();
+    let db = env.open_raw_table::<[u8], [u8]>(Some("rawt"), ()).unwrap();
+
+    let k: [u8; 4] = [0, 1, 2, 3];
+
+    {
+        let txn = env.ro_txn().unwrap();
+        assert_eq!(db.get(&txn, &k).unwrap(), None);
+    }
+
+    env.rw_txn(|txn| db.put(txn, &k, &[42, 41, 43])).unwrap();
+
+    {
+        let txn = env.ro_txn().unwrap();
+        assert_eq!(
+            db.get(&txn, &k).unwrap().unwrap().as_ref(),
+            &[42, 41, 43][..]
+        );
+    }
+}
+
+#[test]
+fn test_raw_str_basics() {
+    let env = temp_env();
+    let db = env.open_raw_table::<str, str>(Some("rawt"), ()).unwrap();
+
+    {
+        let txn = env.ro_txn().unwrap();
+        assert_eq!(db.get(&txn, "ooh").unwrap(), None);
+    }
+
+    env.rw_txn(|txn| db.put(txn, "ooh", "cool!")).unwrap();
+
+    {
+        let txn = env.ro_txn().unwrap();
+        assert_eq!(db.get(&txn, "ooh").unwrap().unwrap().as_ref(), "cool!");
+    }
+}