diff --git a/src/ability/ucan/assert.rs b/src/ability/ucan/assert.rs
index 62946c23..5fe7c874 100644
--- a/src/ability/ucan/assert.rs
+++ b/src/ability/ucan/assert.rs
@@ -1,6 +1,6 @@
 use crate::ability::command::Command;
 use crate::task::Task;
-use libipld_core::{cid::Cid, ipld::Ipld};
+use libipld_core::cid::Cid;
 
 // Things that you can assert include content and receipts
 
@@ -8,12 +8,11 @@ use libipld_core::{cid::Cid, ipld::Ipld};
 pub struct Ran<T, E> {
     ran: Cid,
     out: Box<Result<T, E>>,
-    fx: Vec<Task>, // FIXME may be more than "just" a task
+    next: Vec<Task>, // FIXME may be more than "just" a task
 }
 
 impl<T, E> Command for Ran<T, E> {
-    const COMMAND: &'static str = "/ucan/assert/ran";
-    // const COMMAND: &'static str = "/ucan/ran";????
+    const COMMAND: &'static str = "/ucan/ran";
 }
 
 ///////////////
@@ -23,8 +22,8 @@ impl<T, E> Command for Ran<T, E> {
 #[derive(Debug, PartialEq)]
 pub struct Claim<T> {
     claim: T,
-} // Where Ipld: From<T>
+}
 
 impl<T> Command for Claim<T> {
-    const COMMAND: &'static str = "/ucan/assert/claim";
+    const COMMAND: &'static str = "/ucan/claim";
 }
diff --git a/src/delegation/policy/selector/filter.rs b/src/delegation/policy/selector/filter.rs
index 96343a5a..7e69ec8e 100644
--- a/src/delegation/policy/selector/filter.rs
+++ b/src/delegation/policy/selector/filter.rs
@@ -297,7 +297,7 @@ mod tests {
         use super::*;
 
         proptest! {
-            #[test]
+            #[test_log::test]
             fn test_filter_round_trip(filter: Filter) {
                 let serialized = filter.to_string();
                 let deserialized = serialized.parse();
diff --git a/src/delegation/policy/selector/select.rs b/src/delegation/policy/selector/select.rs
index 7506cc63..9d5270ed 100644
--- a/src/delegation/policy/selector/select.rs
+++ b/src/delegation/policy/selector/select.rs
@@ -1,7 +1,6 @@
-use super::Selector; // FIXME cycle?
+use super::Selector;
 use super::{error::SelectorErrorReason, filter::Filter, Selectable, SelectorError};
 use libipld_core::ipld::Ipld;
-use serde::{Deserialize, Serialize};
 use std::cmp::Ordering;
 use std::fmt;
 use std::str::FromStr;
@@ -200,27 +199,35 @@ mod tests {
     use proptest::prelude::*;
     use testresult::TestResult;
 
+    fn simple() -> Ipld {
+        libipld::ipld!({
+            "foo": 42,
+            "bar": "baz",
+            "qux": true
+        })
+    }
+
+    fn email() -> Ipld {
+        libipld::ipld!({
+            "from": "alice@example.com",
+            "to": ["bob@example.com", "fraud@example.com"],
+            "cc": ["carol@example.com"],
+            "subject": "Quarterly Reports",
+            "body": "Here's Q2 the reports ..."
+        })
+    }
+
+    fn nested_data() -> Ipld {
+        libipld::ipld!({
+            "name": "Alice",
+            "age": 42,
+            "friends": ["Bob", "Charlie"]
+        })
+    }
+
     mod get {
         use super::*;
 
-        fn nested_data() -> Ipld {
-            Ipld::Map(
-                vec![
-                    ("name".to_string(), Ipld::String("Alice".to_string())),
-                    ("age".to_string(), Ipld::Integer(42)),
-                    (
-                        "friends".to_string(),
-                        Ipld::List(vec![
-                            Ipld::String("Bob".to_string()),
-                            Ipld::String("Charlie".to_string()),
-                        ]),
-                    ),
-                ]
-                .into_iter()
-                .collect(),
-            )
-        }
-
         proptest! {
             #[test_log::test]
             fn test_identity(data: ipld::Newtype) {
@@ -248,13 +255,19 @@ mod tests {
                 let selector: Select<Ipld> = Select::new(filters);
 
                 let cleaned_data = match data.0.clone() {
-                    Ipld::Map(mut m) => {
-                        m.remove("foo").map_or(Ipld::Null, |v| v)
-                    }
-                    ipld => ipld
+                    Ipld::Map(mut m) => m.remove("foo").map_or(Ipld::Null, |v| v),
+                    ipld => ipld,
                 };
                 prop_assert_eq!(selector.get(&cleaned_data)?, Ipld::Null);
             }
         }
+
+        #[test_log::test]
+        fn test_eq_dot_field_ending_try_null() -> TestResult {
+            let s = Select::from_str(".from.not?")?;
+
+            pretty::assert_eq!(s.get(&email()), Ok(Ipld::Null));
+            Ok(())
+        }
     }
 }