diff --git a/src/data.rs b/src/data.rs
index 88b4fd3..5c708bc 100644
--- a/src/data.rs
+++ b/src/data.rs
@@ -10,6 +10,9 @@ use tokio::sync::{
 use std::fs::Metadata;
 
 /// A raw file or directory inode number
+///
+/// Ususally created from the `.inode()` extension method on `fs::Metadata` found in prelude.
+/// Can also be created with `new()` from a `fs::Metadata` reference, or created unsafely from an arbitrary `u64` with `new_unchecked`.
 #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Copy)]
 #[repr(transparent)]
 pub struct INode(u64);
@@ -36,6 +39,22 @@ impl INode
     }
 }
 
+impl<'a> From<&'a Metadata> for INode
+{
+    #[inline] fn from(from: &'a Metadata) -> Self
+    {
+	from.inode()
+    }
+}
+
+impl From<INode> for u64
+{
+    #[inline] fn from(from: INode) -> Self
+    {
+	from.0
+    }
+}
+
 /// A valid file system info
 ///
 /// # Note
@@ -146,3 +165,24 @@ impl Cache
 	}
     }
 }
+
+#[cfg(test)]
+mod tests
+{
+    use super::*;
+    #[tokio::test]
+    async fn cache_insert_and_consume()
+    {
+	let mut cache = Cache::new();
+	for x in 0..500
+	{
+	    cache.insert(unsafe { INode::new_unchecked(x) }, FsInfo::Directory).await;
+	}
+	let output = cache.try_complete().await.unwrap();
+	assert_eq!(output.len(), 500);
+	for x in 0..500
+	{
+	    assert_eq!(output.get(&unsafe { INode::new_unchecked(x) }).unwrap(), &FsInfo::Directory);
+	}
+    }
+}