diff --git a/src/file/checked.rs b/src/file/checked.rs
index 2395234..2af7f73 100644
--- a/src/file/checked.rs
+++ b/src/file/checked.rs
@@ -118,17 +118,17 @@ mod tests {
 
     use crate::{
         sharry::{Client, json::NewShareRequest},
-test_util::{
-        MockClient, check_trait, create_file,
-        data::{HASHES_STD_GOOD, cases, data},
-},
+        test_util::{
+            MockClient, check_trait, create_file,
+            data::{HASHES_STD_GOOD, cases, data},
+        },
     };
 
     use super::*;
 
     fn create_checked(content: &[u8]) -> (Checked, NamedTempFile) {
         let file = create_file(content);
-        let chk = Checked::new(file.path()).expect("creating `Checked` should succeed");
+        let chk = Checked::new(file.path()).unwrap();
 
         // return both, so the `NamedTempFile` is not auto-deleted here
         (chk, file)
@@ -138,21 +138,14 @@ test_util::{
     fn new_on_existing_file_works() {
         for (content, size) in cases() {
             let (chk, file) = create_checked(content);
-
-            let path = file
-                .path()
-                .canonicalize()
-                .expect("the file should have a canonical path");
+            let path = file.path().canonicalize().unwrap();
 
             assert_eq!(chk.path, path);
             assert_eq!(chk.size, size);
             assert!(chk.hash.is_none());
 
             // `FileTrait`
-            assert_eq!(
-                chk.get_name(),
-                file.path().file_name().expect("`file_name` should succeed")
-            );
+            assert_eq!(chk.get_name(), file.path().file_name().unwrap());
             assert_eq!(chk.get_size(), size);
 
             check_trait(
@@ -162,7 +155,7 @@ test_util::{
                 "Checked",
             );
 
-            // new unchecked
+            // new_unchecked
             let chk = unsafe { Checked::new_unchecked(chk.path, chk.size, chk.hash) };
             assert_eq!(chk.path, path);
             assert_eq!(chk.size, size);
@@ -172,13 +165,13 @@ test_util::{
 
     #[test]
     fn new_on_dir_errors() {
-        let tempdir = TempDir::new().expect("creating temp dir");
+        let tempdir = TempDir::new().unwrap();
         let fs_root = PathBuf::from("/");
 
         let dirs = [tempdir.path(), fs_root.as_path()];
 
         for p in dirs {
-            let err = Checked::new(p).expect_err("creating `Checked` should fail");
+            let err = Checked::new(p).unwrap_err();
             assert_eq!(err.kind(), io::ErrorKind::InvalidInput);
             #[cfg(target_os = "linux")]
             assert_eq!(err.to_string(), "Not a regular file");
@@ -187,11 +180,11 @@ test_util::{
 
     #[test]
     fn new_on_nex_errors() {
-        let tempdir = TempDir::new().expect("creating temp dir");
+        let tempdir = TempDir::new().unwrap();
         let nex_paths = [0, 1, 2, 3, 4].map(|i| tempdir.path().join(format!("nex_{i}.ext")));
 
         for p in nex_paths {
-            let err = Checked::new(p).expect_err("creating `Checked` should fail");
+            let err = Checked::new(p).unwrap_err();
             assert_eq!(err.kind(), io::ErrorKind::NotFound);
             #[cfg(target_os = "linux")]
             assert_eq!(err.to_string(), "No such file or directory (os error 2)");
@@ -203,9 +196,9 @@ test_util::{
         for (content, hash) in data().zip(HASHES_STD_GOOD) {
             let (mut chk, _file) = create_checked(content);
 
-            chk.hash(drop).expect("`hash` should succeed");
+            chk.hash(drop).unwrap();
             // `FileTrait`
-            chk.check_hash(drop).expect("`check_hash` should succeed");
+            chk.check_hash(drop).unwrap();
 
             assert_eq!(chk.hash, Some(hash.to_string()));
         }
@@ -218,7 +211,7 @@ test_util::{
 
             // fake hash
             chk.hash = Some(String::default());
-            let err = chk.hash(drop).expect_err("`hash` twice should fail");
+            let err = chk.hash(drop).unwrap_err();
 
             assert!(err.is_mismatch("unhashed file", chk.path.display().to_string()));
         }
@@ -227,19 +220,19 @@ test_util::{
     #[test]
     fn start_upload_works() {
         let client = MockClient::default();
-let uri = sharry::Uri::from(true);
+        let uri = sharry::Uri::from(true);
         let alias_id = sharry::AliasID::from(true);
 
         let share_id = client
             .share_create(&uri, &alias_id, NewShareRequest::new("share", 0))
-            .expect("");
+            .unwrap();
 
         for content in data() {
             let (chk, _file) = create_checked(content);
 
             assert!(
-                chk.start_upload(                    &client, &uri, &alias_id,                     &share_id                )
-                .is_ok()
+                chk.start_upload(&client, &uri, &alias_id, &share_id)
+                    .is_ok()
             );
         }
     }
diff --git a/src/file/mod.rs b/src/file/mod.rs
index 8420d48..3910991 100644
--- a/src/file/mod.rs
+++ b/src/file/mod.rs
@@ -139,8 +139,7 @@ mod tests {
             // to capture progress updates from `compute_hash`
             let mut read_total = 0;
             let callback = |n| read_total += n;
-
-            let hash = compute_hash(file.path(), size, callback).expect("hash should succeed");
+            let hash = compute_hash(file.path(), size, callback).unwrap();
 
             assert_eq!(hash, expected_hash);
             assert_eq!(read_total, size);
@@ -151,21 +150,16 @@ mod tests {
     fn hash_size_mismatch() {
         for (content, good_size, bad_size) in cases_with(DATA_LENGTHS_BAD) {
             let file = create_file(content);
-            let callback = drop;
 
             {
-                let err = compute_hash(file.path(), bad_size, callback)
-                    .expect_err("compute_hash should report a mismatch");
-
-                // check error
+                // `compute_hash` with bad size
+                let err = compute_hash(file.path(), bad_size, drop).unwrap_err();
                 assert!(err.is_mismatch(bad_size.to_string(), good_size.to_string()));
             }
 
             {
-                let err = check_hash(file.path(), bad_size, Some("foobar"), callback)
-                    .expect_err("check_hash should report a mismatch");
-
-                // check error
+                // `check_hash` with bad size
+                let err = check_hash(file.path(), bad_size, Some("foobar"), drop).unwrap_err();
                 assert!(err.is_mismatch(bad_size.to_string(), good_size.to_string()));
             }
         }
@@ -175,12 +169,9 @@ mod tests {
     fn hash_value_none() {
         for (content, size) in cases() {
             let file = create_file(content);
-            let callback = drop;
 
-            let err = check_hash(file.path(), size, None, callback)
-                .expect_err("check_hash should report a mismatch");
-
-            // check error
+            // `check_hash` with no hash
+            let err = check_hash(file.path(), size, None, drop).unwrap_err();
             assert!(err.is_mismatch("hash", file.path().display().to_string()));
         }
     }
@@ -191,12 +182,9 @@ mod tests {
             cases_with(HASHES_STD_GOOD).zip(HASHES_STD_BAD)
         {
             let file = create_file(content);
-            let callback = drop;
 
-            let err = check_hash(file.path(), size, Some(bad_hash), callback)
-                .expect_err("check_hash should report a mismatch");
-
-            // check error
+            // `check_hash` with bad hash
+            let err = check_hash(file.path(), size, Some(bad_hash), drop).unwrap_err();
             assert!(err.is_mismatch(bad_hash, good_hash));
         }
     }
diff --git a/src/sharry/ids.rs b/src/sharry/ids.rs
index 62e054f..d30bcff 100644
--- a/src/sharry/ids.rs
+++ b/src/sharry/ids.rs
@@ -171,12 +171,8 @@ mod tests {
         ];
 
         for (good, expected_fid) in cases {
-            let file_id =
-                FileID::try_from(good.to_string()).expect("URL should parse successfully");
-            assert_eq!(
-                file_id.0, expected_fid,
-                "Expected `{good}` → FileID({expected_fid}), got {file_id:?}",
-            );
+            let file_id = FileID::try_from(good.to_string()).unwrap();
+            assert_eq!(file_id.0, expected_fid);
         }
     }
 
@@ -196,7 +192,7 @@ mod tests {
         ];
 
         for bad in bad_inputs {
-            let err = FileID::try_from(bad.to_string()).expect_err("URL should not parse");
+            let err = FileID::try_from(bad.to_string()).unwrap_err();
             // make sure it's the Mismatch variant, and that it contains the original input
             assert!(err.is_mismatch(
                 "<proto>://<host>/api/v2/alias/upload/<share>/files/tus/<file>",
diff --git a/src/test_util/mock_client.rs b/src/test_util/mock_client.rs
index 2548dee..e31a8cd 100644
--- a/src/test_util/mock_client.rs
+++ b/src/test_util/mock_client.rs
@@ -71,7 +71,7 @@ impl MockClient {
             .ok_or_else(|| error_response!("can't find share {share_id:?}!"))?;
 
         Ok(RefMut::map(shares, |shares| {
-            shares.get_mut(share_id).expect("checked but None!")
+            shares.get_mut(share_id).unwrap()
         }))
     }
 
@@ -90,7 +90,7 @@ impl MockClient {
             .ok_or_else(|| error_response!("can't find file {file_id:?}!"))?;
 
         Ok(RefMut::map(share, move |share| {
-            share.files.get_mut(file_id).expect("checked but None!")
+            share.files.get_mut(file_id).unwrap()
         }))
     }
 }
diff --git a/src/test_util/mock_ids.rs b/src/test_util/mock_ids.rs
index 19bcfa0..0a1e07f 100644
--- a/src/test_util/mock_ids.rs
+++ b/src/test_util/mock_ids.rs
@@ -142,8 +142,8 @@ mod tests {
     #[test]
     fn false_makes_invalids() {
         fn test_check(value: impl CheckID, callback: impl FnOnce(&Parameter) -> bool) {
-            let check = value.check().expect_err("should be invalid");
-            let p = check.get_invalid_param().expect("should be InvalidParam");
+            let check = value.check().unwrap_err();
+            let p = check.get_invalid_param().unwrap();
             assert!(callback(p));
         }
 
diff --git a/src/test_util/mod.rs b/src/test_util/mod.rs
index be4b48a..abba60f 100644
--- a/src/test_util/mod.rs
+++ b/src/test_util/mod.rs
@@ -24,7 +24,7 @@ where
 
 /// Helper to create a temp file from `data`
 pub fn create_file(data: &[u8]) -> NamedTempFile {
-    let mut tmp = NamedTempFile::new().expect("creating temp file");
-    tmp.write_all(data).expect("writing to tempfile");
+    let mut tmp = NamedTempFile::new().unwrap();
+    tmp.write_all(data).unwrap();
     tmp
 }