additional validation

Author: Byron

etc/check-package-size.sh

@@ -22,7 +22,7 @@ echo "in root: gitoxide CLI"
 (enter git-path && indent cargo diet -n --package-size-limit 15KB)
 (enter git-attributes && indent cargo diet -n --package-size-limit 15KB)
 (enter git-discover && indent cargo diet -n --package-size-limit 20KB)
-(enter git-index && indent cargo diet -n --package-size-limit 30KB)
+(enter git-index && indent cargo diet -n --package-size-limit 40KB)
 (enter git-worktree && indent cargo diet -n --package-size-limit 30KB)
 (enter git-quote && indent cargo diet -n --package-size-limit 5KB)
 (enter git-revision && indent cargo diet -n --package-size-limit 25KB)

git-index/tests/index/file/write.rs

@@ -1,4 +1,5 @@
 use filetime::FileTime;
+use git_index::verify::extensions::no_find;
 use git_index::{decode, write, State, Version};
 use std::cmp::{max, min};
 
@@ -118,6 +119,8 @@ fn v2_index_eoie_extensions() {
 }
 
 fn compare_states(generated: &State, expected: &State, options: write::Options, fixture: &str) {
+    generated.verify_entries().expect("valid");
+    generated.verify_extensions(false, no_find).expect("valid");
     assert_eq!(generated.version(), options.version, "version mismatch in {}", fixture);
     assert_eq!(
         generated.tree(),