Import data and check consistency

brood/src/main.rs

@@ -1,5 +1,6 @@
 mod ingest;
 mod data;
+mod test;
 
 use std::io;
 
@@ -9,10 +10,13 @@ use clap::Parser;
 enum Command {
     /// Read sift data on stdin and output brood data on stdout.
     Ingest,
+    /// Test various things
+    Test,
 }
 
 fn main() -> io::Result<()> {
     match Command::parse() {
         Command::Ingest => ingest::ingest(),
+        Command::Test => test::test(),
     }
 }

brood/src/test.rs

@@ -0,0 +1,18 @@
+use std::io::{self, BufReader};
+
+use crate::data::AdjacencyList;
+
+pub fn test() -> io::Result<()> {
+    eprintln!("IMPORT");
+    let data: AdjacencyList = ciborium::de::from_reader(BufReader::new(io::stdin())).unwrap();
+
+    eprintln!("CONSISTENCY CHECK");
+    let range = 0..data.pages.len() as u32;
+    for link in &data.links {
+        if !range.contains(&link.to) {
+            eprintln!("Invalid link detected!");
+        }
+    }
+
+    Ok(())
+}