diff --git a/test/src/error.rs b/test/src/error.rs
index 4b898e95..520fd1c6 100644
--- a/test/src/error.rs
+++ b/test/src/error.rs
@@ -10,9 +10,9 @@ use std::sync::Arc;
 pub enum Error {
     /// No matching widget was found for the [`Selector`](crate::Selector).
     #[error("no matching widget was found for the selector: {selector}")]
-    NotFound { selector: String },
+    SelectorNotFound { selector: String },
     #[error("the matching target is not visible: {target:?}")]
-    NotVisible {
+    TargetNotVisible {
         target: Arc<dyn std::fmt::Debug + Send + Sync>,
     },
     /// An IO operation failed.
@@ -30,7 +30,7 @@ pub enum Error {
         error: ice::ParseError,
     },
     #[error("the ice test ({file}) failed")]
-    IceFailed {
+    IceTestingFailed {
         file: PathBuf,
         instruction: Instruction,
     },
diff --git a/test/src/lib.rs b/test/src/lib.rs
index cc74509a..5f4f61dd 100644
--- a/test/src/lib.rs
+++ b/test/src/lib.rs
@@ -180,16 +180,15 @@ pub fn run(
         let mut instructions = ice.instructions.into_iter();
 
         loop {
-            let Some(event) = executor::block_on(receiver.next()) else {
-                panic!("emulator runtime stopped unexpectedly");
-            };
+            let event = executor::block_on(receiver.next())
+                .expect("emulator runtime should never stop on its own");
 
             match event {
                 emulator::Event::Action(action) => {
                     emulator.perform(&program, action);
                 }
                 emulator::Event::Failed(instruction) => {
-                    return Err(Error::IceFailed {
+                    return Err(Error::IceTestingFailed {
                         file: file.path().to_path_buf(),
                         instruction,
                     });
diff --git a/test/src/simulator.rs b/test/src/simulator.rs
index 30f772a6..93b933a5 100644
--- a/test/src/simulator.rs
+++ b/test/src/simulator.rs
@@ -118,11 +118,11 @@ where
 
         match operation.finish() {
             widget::operation::Outcome::Some(output) => {
-                output.ok_or(Error::NotFound {
+                output.ok_or(Error::SelectorNotFound {
                     selector: description,
                 })
             }
-            _ => Err(Error::NotFound {
+            _ => Err(Error::SelectorNotFound {
                 selector: description,
             }),
         }
@@ -148,7 +148,7 @@ where
         let target = self.find(selector)?;
 
         let Some(visible_bounds) = target.visible_bounds() else {
-            return Err(Error::NotVisible {
+            return Err(Error::TargetNotVisible {
                 target: Arc::new(target),
             });
         };