diff --git a/cli/tests/test_describe_command.rs b/cli/tests/test_describe_command.rs
index 8b436bb1ea..98d3633538 100644
--- a/cli/tests/test_describe_command.rs
+++ b/cli/tests/test_describe_command.rs
@@ -265,6 +265,19 @@ fn test_describe_editor_env() {
     ");
 }
 
+#[test]
+fn test_describe_no_matching_revisions() {
+    let test_env = TestEnvironment::default();
+    test_env.run_jj_in(".", ["git", "init", "repo"]).success();
+    let work_dir = test_env.work_dir("repo");
+    let output = work_dir.run_jj(["describe", "none()"]);
+    insta::assert_snapshot!(output, @r"
+    ------- stderr -------
+    No revisions to describe.
+    [EOF]
+    ");
+}
+
 #[test]
 fn test_describe_multiple_commits() {
     let mut test_env = TestEnvironment::default();
diff --git a/cli/tests/test_metaedit_command.rs b/cli/tests/test_metaedit_command.rs
index e716e7117c..165e8ffde3 100644
--- a/cli/tests/test_metaedit_command.rs
+++ b/cli/tests/test_metaedit_command.rs
@@ -95,7 +95,7 @@ fn test_metaedit() {
     [EOF]
     ");
 
-    // Update author
+    // Update author, ensure the commit can be specified with -r too
     work_dir.run_jj(["op", "restore", &setup_opid]).success();
     work_dir
         .run_jj([
@@ -103,6 +103,7 @@ fn test_metaedit() {
             "--config=user.name=Ove Ridder",
             "--config=user.email=ove.ridder@example.com",
             "--update-author",
+            "-r",
             "kkmpptxzrspx",
         ])
         .success();
@@ -410,6 +411,19 @@ fn test_metaedit() {
     ");
 }
 
+#[test]
+fn test_metaedit_no_matching_revisions() {
+    let test_env = TestEnvironment::default();
+    test_env.run_jj_in(".", ["git", "init", "repo"]).success();
+    let work_dir = test_env.work_dir("repo");
+    let output = work_dir.run_jj(["metaedit", "--update-change-id", "none()"]);
+    insta::assert_snapshot!(output, @r"
+    ------- stderr -------
+    No revisions to modify.
+    [EOF]
+    ");
+}
+
 #[test]
 fn test_metaedit_multiple_revisions() {
     let test_env = TestEnvironment::default();
@@ -645,7 +659,7 @@ fn test_metaedit_option_mutual_exclusion() {
 }
 
 #[test]
-fn test_update_empty_author() {
+fn test_update_empty_author_or_email() {
     let mut test_env = TestEnvironment::default();
 
     // get rid of test author config
@@ -666,25 +680,70 @@ fn test_update_empty_author() {
     [EOF]
     ");
 
-    // restore test author config
+    // restore test author config, exercise --quiet
     test_env.add_env_var("JJ_USER", "Test User");
     test_env.add_env_var("JJ_EMAIL", "test.user@example.com");
     let work_dir = test_env.work_dir("repo");
 
     // update existing commit with restored test author config
-    insta::assert_snapshot!(work_dir.run_jj(["metaedit", "--update-author"]), @r"
+    insta::assert_snapshot!(work_dir.run_jj(["metaedit", "--update-author", "--quiet"]), @"");
+    insta::assert_snapshot!(work_dir.run_jj(["show"]), @r"
+    Commit ID: 0f13b5f2ea7fad147c133c81b87d31e7b1b8c564
+    Change ID: qpvuntsmwlqtpsluzzsnyyzlmlwvmlnu
+    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
+    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)
+
+        (no description set)
+
+    [EOF]
+    ");
+
+    // confirm user / email can be cleared/restored separately
+    // leave verbose to see no-email warning + hint
+    test_env.add_env_var("JJ_EMAIL", "");
+    let work_dir = test_env.work_dir("repo");
+    insta::assert_snapshot!(work_dir.run_jj(["metaedit", "--update-author"]), @r#"
     ------- stderr -------
     Modified 1 commits:
-      qpvuntsm 0f13b5f2 (empty) (no description set)
-    Working copy  (@) now at: qpvuntsm 0f13b5f2 (empty) (no description set)
+      qpvuntsm 234908d4 (empty) (no description set)
+    Working copy  (@) now at: qpvuntsm 234908d4 (empty) (no description set)
     Parent commit (@-)      : zzzzzzzz 00000000 (empty) (no description set)
+    Warning: Email not configured. Until configured, your commits will be created with the empty identity, and can't be pushed to remotes.
+    Hint: To configure, run:
+      jj config set --user user.email "someone@example.com"
+    [EOF]
+    "#);
+    insta::assert_snapshot!(work_dir.run_jj(["show"]), @r"
+    Commit ID: 234908d4748ff3224a87888d8b52a4923e1a89a5
+    Change ID: qpvuntsmwlqtpsluzzsnyyzlmlwvmlnu
+    Author   : Test User <(no email set)> (2001-02-03 08:05:09)
+    Committer: Test User <(no email set)> (2001-02-03 08:05:11)
+
+        (no description set)
+
     [EOF]
     ");
+
+    // confirm no-name warning + hint
+    test_env.add_env_var("JJ_USER", "");
+    test_env.add_env_var("JJ_EMAIL", "test.user@example.com");
+    let work_dir = test_env.work_dir("repo");
+    insta::assert_snapshot!(work_dir.run_jj(["metaedit", "--update-author"]), @r#"
+    ------- stderr -------
+    Modified 1 commits:
+      qpvuntsm ac5048cf (empty) (no description set)
+    Working copy  (@) now at: qpvuntsm ac5048cf (empty) (no description set)
+    Parent commit (@-)      : zzzzzzzz 00000000 (empty) (no description set)
+    Warning: Name not configured. Until configured, your commits will be created with the empty identity, and can't be pushed to remotes.
+    Hint: To configure, run:
+      jj config set --user user.name "Some One"
+    [EOF]
+    "#);
     insta::assert_snapshot!(work_dir.run_jj(["show"]), @r"
-    Commit ID: 0f13b5f2ea7fad147c133c81b87d31e7b1b8c564
+    Commit ID: ac5048cf35372ddc30e2590271781a3eab0bcaf8
     Change ID: qpvuntsmwlqtpsluzzsnyyzlmlwvmlnu
-    Author   : Test User <test.user@example.com> (2001-02-03 08:05:09)
-    Committer: Test User <test.user@example.com> (2001-02-03 08:05:09)
+    Author   : (no name set) <test.user@example.com> (2001-02-03 08:05:09)
+    Committer: (no name set) <test.user@example.com> (2001-02-03 08:05:13)
 
         (no description set)