diff --git a/Cargo.lock b/Cargo.lock
index fa1e1895..2fd621e0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -570,12 +570,7 @@ version = "4.3.1"
 dependencies = [
  "clap 4.3.19",
  "clap_complete",
- "nu-cli",
- "nu-command",
- "nu-parser",
- "nu-protocol",
- "nu-test-support",
- "reedline",
+ "completest",
  "snapbox",
 ]
 
@@ -646,11 +641,18 @@ checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
 [[package]]
 name = "completest"
-version = "0.0.14"
+version = "0.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa515ddcd88ba6e25ed72581b38284255c9126ff2ca4fd81525f72a59187a985"
+checksum = "426bfb709a07e01f5ee02dfccf42a73ef64a03ca6295a82e5c1c211a302a770e"
 dependencies = [
+ "dunce",
+ "nu-cli",
+ "nu-command",
+ "nu-parser",
+ "nu-protocol",
+ "nu-test-support",
  "ptyprocess",
+ "reedline",
  "vt100",
 ]
 
diff --git a/clap_complete/Cargo.toml b/clap_complete/Cargo.toml
index 9e4c2790..63e2d979 100644
--- a/clap_complete/Cargo.toml
+++ b/clap_complete/Cargo.toml
@@ -43,7 +43,7 @@ unicode-xid = { version = "0.2.2", optional = true }
 snapbox = { version = "0.4.11", features = ["diff", "path", "examples"] }
 # Cutting out `filesystem` feature
 trycmd = { version = "0.14.16", default-features = false, features = ["color-auto", "diff", "examples"] }
-completest = "0.0.14"
+completest = "0.0.16"
 clap = { path = "../", version = "4.0.0", default-features = false, features = ["std", "derive", "help"] }
 
 [[example]]
diff --git a/clap_complete/tests/testsuite/common.rs b/clap_complete/tests/testsuite/common.rs
index 481dbd2d..c0cfad12 100644
--- a/clap_complete/tests/testsuite/common.rs
+++ b/clap_complete/tests/testsuite/common.rs
@@ -296,6 +296,96 @@ pub fn assert_matches_path(
         .matches_path(expected_path, buf);
 }
 
+pub fn register_example(name: &str, shell: completest::Shell) {
+    let scratch = snapbox::path::PathFixture::mutable_temp().unwrap();
+    let scratch_path = scratch.path().unwrap();
+
+    let shell_name = shell.name();
+    let home = std::path::Path::new(env!("CARGO_MANIFEST_DIR"))
+        .join("tests/snapshots/home")
+        .join(name)
+        .join(shell_name);
+    println!("Compiling");
+    let manifest_path = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("Cargo.toml");
+    let bin_path =
+        snapbox::cmd::compile_example(name, ["--manifest-path", manifest_path.to_str().unwrap()])
+            .unwrap();
+    println!("Compiled");
+    let bin_root = bin_path.parent().unwrap().to_owned();
+
+    let registration = std::process::Command::new(&bin_path)
+        .arg(format!("--generate={shell_name}"))
+        .output()
+        .unwrap();
+    assert!(
+        registration.status.success(),
+        "{}",
+        String::from_utf8_lossy(&registration.stderr)
+    );
+    let registration = std::str::from_utf8(&registration.stdout).unwrap();
+    assert!(!registration.is_empty());
+
+    let mut runtime = shell.init(bin_root, scratch_path.to_owned()).unwrap();
+
+    runtime.register(name, registration).unwrap();
+
+    snapbox::assert_subset_eq(home, scratch_path);
+
+    scratch.close().unwrap();
+}
+
+pub fn load_runtime(name: &str, shell: completest::Shell) -> Box<dyn completest::Runtime> {
+    let shell_name = shell.name();
+    let home = std::path::Path::new(env!("CARGO_MANIFEST_DIR"))
+        .join("tests/snapshots/home")
+        .join(name)
+        .join(shell_name);
+    let scratch = snapbox::path::PathFixture::mutable_temp()
+        .unwrap()
+        .with_template(&home)
+        .unwrap();
+    let home = scratch.path().unwrap().to_owned();
+    println!("Compiling");
+    let manifest_path = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("Cargo.toml");
+    let bin_path =
+        snapbox::cmd::compile_example(name, ["--manifest-path", manifest_path.to_str().unwrap()])
+            .unwrap();
+    println!("Compiled");
+    let bin_root = bin_path.parent().unwrap().to_owned();
+
+    let runtime = shell.with_home(bin_root, home).unwrap();
+
+    Box::new(ScratchRuntime {
+        _scratch: scratch,
+        runtime,
+    })
+}
+
+#[derive(Debug)]
+struct ScratchRuntime {
+    _scratch: snapbox::path::PathFixture,
+    runtime: Box<dyn completest::Runtime>,
+}
+
+impl completest::Runtime for ScratchRuntime {
+    fn home(&self) -> &std::path::Path {
+        self.runtime.home()
+    }
+
+    fn register(&mut self, name: &str, content: &str) -> std::io::Result<()> {
+        self.runtime.register(name, content)
+    }
+
+    fn complete(&mut self, input: &str, term: &completest::Term) -> std::io::Result<String> {
+        let output = self.runtime.complete(input, term)?;
+        // HACK: elvish prints and clears this message when a completer takes too long which is
+        // dependent on a lot of factors, making this show up or no sometimes (especially if we
+        // aren't clearing the screen properly for fish)
+        let output = output.replace("\nCOMPLETING argument\n", "\n");
+        Ok(output)
+    }
+}
+
 pub fn has_command(command: &str) -> bool {
     let output = match std::process::Command::new(command)
         .arg("--version")
@@ -341,87 +431,6 @@ pub fn has_command(command: &str) -> bool {
     true
 }
 
-#[cfg(unix)]
-pub fn register_example(name: &str, shell: completest::Shell) {
-    let scratch = snapbox::path::PathFixture::mutable_temp().unwrap();
-    let scratch_path = scratch.path().unwrap();
-
-    let shell_name = shell.name();
-    let home = std::path::Path::new("tests/snapshots/home")
-        .join(name)
-        .join(shell_name);
-    let bin_path = snapbox::cmd::compile_example(name, []).unwrap();
-    let bin_root = bin_path.parent().unwrap().to_owned();
-
-    let registration = std::process::Command::new(&bin_path)
-        .arg(format!("--generate={shell_name}"))
-        .output()
-        .unwrap();
-    assert!(
-        registration.status.success(),
-        "{}",
-        String::from_utf8_lossy(&registration.stderr)
-    );
-    let registration = std::str::from_utf8(&registration.stdout).unwrap();
-    assert!(!registration.is_empty());
-
-    let mut runtime = shell.init(bin_root, scratch_path.to_owned()).unwrap();
-
-    runtime.register(name, registration).unwrap();
-
-    snapbox::assert_subset_eq(home, scratch_path);
-
-    scratch.close().unwrap();
-}
-
-#[cfg(unix)]
-pub fn load_runtime(name: &str, shell: completest::Shell) -> Box<dyn completest::Runtime> {
-    let shell_name = shell.name();
-    let home = std::path::Path::new("tests/snapshots/home")
-        .join(name)
-        .join(shell_name);
-    let scratch = snapbox::path::PathFixture::mutable_temp()
-        .unwrap()
-        .with_template(&home)
-        .unwrap();
-    let home = scratch.path().unwrap().to_owned();
-    let bin_path = snapbox::cmd::compile_example(name, []).unwrap();
-    let bin_root = bin_path.parent().unwrap().to_owned();
-
-    let runtime = shell.with_home(bin_root, home);
-
-    Box::new(ScratchRuntime {
-        _scratch: scratch,
-        runtime,
-    })
-}
-
-#[cfg(unix)]
-struct ScratchRuntime {
-    _scratch: snapbox::path::PathFixture,
-    runtime: Box<dyn completest::Runtime>,
-}
-
-#[cfg(unix)]
-impl completest::Runtime for ScratchRuntime {
-    fn home(&self) -> &std::path::Path {
-        self.runtime.home()
-    }
-
-    fn register(&mut self, name: &str, content: &str) -> std::io::Result<()> {
-        self.runtime.register(name, content)
-    }
-
-    fn complete(&mut self, input: &str, term: &completest::Term) -> std::io::Result<String> {
-        let output = self.runtime.complete(input, term)?;
-        // HACK: elvish prints and clears this message when a completer takes too long which is
-        // dependent on a lot of factors, making this show up or no sometimes (especially if we
-        // aren't clearing the screen properly for fish)
-        let output = output.replace("\nCOMPLETING argument\n", "\n");
-        Ok(output)
-    }
-}
-
 /// Whether or not this running in a Continuous Integration environment.
 fn is_ci() -> bool {
     // Consider using `tracked_env` instead of option_env! when it is stabilized.
diff --git a/clap_complete_nushell/Cargo.toml b/clap_complete_nushell/Cargo.toml
index c232fac1..e1d9d35f 100644
--- a/clap_complete_nushell/Cargo.toml
+++ b/clap_complete_nushell/Cargo.toml
@@ -35,11 +35,6 @@ clap = { path = "../", version = "4.0.0", default-features = false, features = [
 clap_complete = { path = "../clap_complete", version = "4.0.0" }
 
 [dev-dependencies]
-snapbox = { version = "0.4.11", features = ["diff"] }
+snapbox = { version = "0.4.11", features = ["diff", "examples", "path"] }
 clap = { path = "../", version = "4.0.0", default-features = false, features = ["std", "help"] }
-nu-cli = "0.78.0"
-nu-command = "0.78.0"
-nu-parser = "0.78.0"
-nu-protocol = "0.78.0"
-nu-test-support = "0.78.0"
-reedline = "0.18.0"
+completest = { version = "0.0.16", features = ["nu"] }
diff --git a/clap_complete_nushell/examples/test.rs b/clap_complete_nushell/examples/test.rs
new file mode 100644
index 00000000..6cfd416b
--- /dev/null
+++ b/clap_complete_nushell/examples/test.rs
@@ -0,0 +1,170 @@
+use clap_complete::generate;
+use clap_complete_nushell::Nushell;
+
+fn main() {
+    let matches = cli().get_matches();
+    if matches.contains_id("generate") {
+        let mut cmd = cli();
+        generate(Nushell, &mut cmd, "test", &mut std::io::stdout());
+    } else {
+        println!("{:?}", matches);
+    }
+}
+
+fn cli() -> clap::Command {
+    clap::Command::new("test")
+        .version("3.0")
+        .propagate_version(true)
+        .args([
+            clap::Arg::new("global")
+                .long("global")
+                .global(true)
+                .action(clap::ArgAction::SetTrue)
+                .help("everywhere"),
+            clap::Arg::new("generate").long("generate").help("generate"),
+        ])
+        .subcommands([
+            clap::Command::new("action").args([
+                clap::Arg::new("set-true")
+                    .long("set-true")
+                    .action(clap::ArgAction::SetTrue)
+                    .help("bool"),
+                clap::Arg::new("set")
+                    .long("set")
+                    .action(clap::ArgAction::Set)
+                    .help("value"),
+                clap::Arg::new("count")
+                    .long("count")
+                    .action(clap::ArgAction::Count)
+                    .help("number"),
+                clap::Arg::new("choice")
+                    .long("choice")
+                    .value_parser(["first", "second"])
+                    .help("enum"),
+            ]),
+            clap::Command::new("quote")
+                .args([
+                    clap::Arg::new("single-quotes")
+                        .long("single-quotes")
+                        .action(clap::ArgAction::SetTrue)
+                        .help("Can be 'always', 'auto', or 'never'"),
+                    clap::Arg::new("double-quotes")
+                        .long("double-quotes")
+                        .action(clap::ArgAction::SetTrue)
+                        .help("Can be \"always\", \"auto\", or \"never\""),
+                    clap::Arg::new("backticks")
+                        .long("backticks")
+                        .action(clap::ArgAction::SetTrue)
+                        .help("For more information see `echo test`"),
+                    clap::Arg::new("backslash")
+                        .long("backslash")
+                        .action(clap::ArgAction::SetTrue)
+                        .help("Avoid '\\n'"),
+                    clap::Arg::new("brackets")
+                        .long("brackets")
+                        .action(clap::ArgAction::SetTrue)
+                        .help("List packages [filter]"),
+                    clap::Arg::new("expansions")
+                        .long("expansions")
+                        .action(clap::ArgAction::SetTrue)
+                        .help("Execute the shell command with $SHELL"),
+                ])
+                .subcommands([
+                    clap::Command::new("cmd-single-quotes")
+                        .about("Can be 'always', 'auto', or 'never'"),
+                    clap::Command::new("cmd-double-quotes")
+                        .about("Can be \"always\", \"auto\", or \"never\""),
+                    clap::Command::new("cmd-backticks")
+                        .about("For more information see `echo test`"),
+                    clap::Command::new("cmd-backslash").about("Avoid '\\n'"),
+                    clap::Command::new("cmd-brackets").about("List packages [filter]"),
+                    clap::Command::new("cmd-expansions")
+                        .about("Execute the shell command with $SHELL"),
+                ]),
+            clap::Command::new("value").args([
+                clap::Arg::new("delim").long("delim").value_delimiter(','),
+                clap::Arg::new("tuple").long("tuple").num_args(2),
+                clap::Arg::new("require-eq")
+                    .long("require-eq")
+                    .require_equals(true),
+                clap::Arg::new("term").num_args(1..).value_terminator(";"),
+            ]),
+            clap::Command::new("pacman").subcommands([
+                clap::Command::new("one").long_flag("one").short_flag('o'),
+                clap::Command::new("two").long_flag("two").short_flag('t'),
+            ]),
+            clap::Command::new("last")
+                .args([clap::Arg::new("first"), clap::Arg::new("free").last(true)]),
+            clap::Command::new("alias").args([
+                clap::Arg::new("flag")
+                    .short('f')
+                    .visible_short_alias('F')
+                    .long("flag")
+                    .action(clap::ArgAction::SetTrue)
+                    .visible_alias("flg")
+                    .help("cmd flag"),
+                clap::Arg::new("option")
+                    .short('o')
+                    .visible_short_alias('O')
+                    .long("option")
+                    .visible_alias("opt")
+                    .help("cmd option")
+                    .action(clap::ArgAction::Set),
+                clap::Arg::new("positional"),
+            ]),
+            clap::Command::new("hint").args([
+                clap::Arg::new("choice")
+                    .long("choice")
+                    .action(clap::ArgAction::Set)
+                    .value_parser(["bash", "fish", "zsh"]),
+                clap::Arg::new("unknown")
+                    .long("unknown")
+                    .value_hint(clap::ValueHint::Unknown),
+                clap::Arg::new("other")
+                    .long("other")
+                    .value_hint(clap::ValueHint::Other),
+                clap::Arg::new("path")
+                    .long("path")
+                    .short('p')
+                    .value_hint(clap::ValueHint::AnyPath),
+                clap::Arg::new("file")
+                    .long("file")
+                    .short('f')
+                    .value_hint(clap::ValueHint::FilePath),
+                clap::Arg::new("dir")
+                    .long("dir")
+                    .short('d')
+                    .value_hint(clap::ValueHint::DirPath),
+                clap::Arg::new("exe")
+                    .long("exe")
+                    .short('e')
+                    .value_hint(clap::ValueHint::ExecutablePath),
+                clap::Arg::new("cmd_name")
+                    .long("cmd-name")
+                    .value_hint(clap::ValueHint::CommandName),
+                clap::Arg::new("cmd")
+                    .long("cmd")
+                    .short('c')
+                    .value_hint(clap::ValueHint::CommandString),
+                clap::Arg::new("command_with_args")
+                    .action(clap::ArgAction::Set)
+                    .num_args(1..)
+                    .trailing_var_arg(true)
+                    .value_hint(clap::ValueHint::CommandWithArguments),
+                clap::Arg::new("user")
+                    .short('u')
+                    .long("user")
+                    .value_hint(clap::ValueHint::Username),
+                clap::Arg::new("host")
+                    .short('H')
+                    .long("host")
+                    .value_hint(clap::ValueHint::Hostname),
+                clap::Arg::new("url")
+                    .long("url")
+                    .value_hint(clap::ValueHint::Url),
+                clap::Arg::new("email")
+                    .long("email")
+                    .value_hint(clap::ValueHint::EmailAddress),
+            ]),
+        ])
+}
diff --git a/clap_complete_nushell/tests/common.rs b/clap_complete_nushell/tests/common.rs
index e96323e6..bbf562a0 100644
--- a/clap_complete_nushell/tests/common.rs
+++ b/clap_complete_nushell/tests/common.rs
@@ -1,3 +1,5 @@
+#![allow(dead_code)] // shared with other test modules
+
 use clap::{builder::PossibleValue, Arg, ArgAction, Command, ValueHint};
 
 pub fn basic_command(name: &'static str) -> Command {
@@ -244,7 +246,7 @@ pub fn value_hint_command(name: &'static str) -> Command {
 pub fn assert_matches_path(
     expected_path: impl AsRef<std::path::Path>,
     gen: impl clap_complete::Generator,
-    mut cmd: Command,
+    mut cmd: clap::Command,
     name: &'static str,
 ) {
     let mut buf = vec![];
@@ -255,3 +257,91 @@ pub fn assert_matches_path(
         .normalize_paths(false)
         .matches_path(expected_path, buf);
 }
+
+pub fn register_example(name: &str, shell: completest::Shell) {
+    let scratch = snapbox::path::PathFixture::mutable_temp().unwrap();
+    let scratch_path = scratch.path().unwrap();
+
+    let shell_name = shell.name();
+    let home = std::path::Path::new(env!("CARGO_MANIFEST_DIR"))
+        .join("tests/snapshots/home")
+        .join(name)
+        .join(shell_name);
+    println!("Compiling");
+    let manifest_path = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("Cargo.toml");
+    let bin_path =
+        snapbox::cmd::compile_example(name, ["--manifest-path", manifest_path.to_str().unwrap()])
+            .unwrap();
+    println!("Compiled");
+    let bin_root = bin_path.parent().unwrap().to_owned();
+
+    let registration = std::process::Command::new(&bin_path)
+        .arg(format!("--generate={shell_name}"))
+        .output()
+        .unwrap();
+    assert!(
+        registration.status.success(),
+        "{}",
+        String::from_utf8_lossy(&registration.stderr)
+    );
+    let registration = std::str::from_utf8(&registration.stdout).unwrap();
+    assert!(!registration.is_empty());
+
+    let mut runtime = shell.init(bin_root, scratch_path.to_owned()).unwrap();
+
+    runtime.register(name, registration).unwrap();
+
+    snapbox::assert_subset_eq(home, scratch_path);
+
+    scratch.close().unwrap();
+}
+
+pub fn load_runtime(name: &str, shell: completest::Shell) -> Box<dyn completest::Runtime> {
+    let shell_name = shell.name();
+    let home = std::path::Path::new(env!("CARGO_MANIFEST_DIR"))
+        .join("tests/snapshots/home")
+        .join(name)
+        .join(shell_name);
+    std::fs::create_dir_all(&home).unwrap();
+    let scratch = snapbox::path::PathFixture::immutable(&home);
+    let home = scratch.path().unwrap().to_owned();
+    println!("Compiling");
+    let manifest_path = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("Cargo.toml");
+    let bin_path =
+        snapbox::cmd::compile_example(name, ["--manifest-path", manifest_path.to_str().unwrap()])
+            .unwrap();
+    println!("Compiled");
+    let bin_root = bin_path.parent().unwrap().to_owned();
+
+    let runtime = shell.with_home(bin_root, home).unwrap();
+
+    Box::new(ScratchRuntime {
+        _scratch: scratch,
+        runtime,
+    })
+}
+
+#[derive(Debug)]
+struct ScratchRuntime {
+    _scratch: snapbox::path::PathFixture,
+    runtime: Box<dyn completest::Runtime>,
+}
+
+impl completest::Runtime for ScratchRuntime {
+    fn home(&self) -> &std::path::Path {
+        self.runtime.home()
+    }
+
+    fn register(&mut self, name: &str, content: &str) -> std::io::Result<()> {
+        self.runtime.register(name, content)
+    }
+
+    fn complete(&mut self, input: &str, term: &completest::Term) -> std::io::Result<String> {
+        let output = self.runtime.complete(input, term)?;
+        // HACK: elvish prints and clears this message when a completer takes too long which is
+        // dependent on a lot of factors, making this show up or no sometimes (especially if we
+        // aren't clearing the screen properly for fish)
+        let output = output.replace("\nCOMPLETING argument\n", "\n");
+        Ok(output)
+    }
+}
diff --git a/clap_complete_nushell/tests/completion.rs b/clap_complete_nushell/tests/completion.rs
index d377180d..562cf5e9 100644
--- a/clap_complete_nushell/tests/completion.rs
+++ b/clap_complete_nushell/tests/completion.rs
@@ -1,326 +1,85 @@
-use std::fs::File;
-use std::io::Read;
-use std::path::Path;
-use std::path::PathBuf;
-use std::sync::Arc;
+mod common;
 
-use nu_cli::NuCompleter;
-use nu_command::create_default_context;
-use nu_parser::parse;
-use nu_protocol::{
-    engine::{EngineState, Stack, StateWorkingSet},
-    Value,
-};
-
-use reedline::{Completer as _, Suggestion};
-
-// creates a new engine with the current path into the completions fixtures folder
-fn new_engine() -> (PathBuf, EngineState, Stack) {
-    // Target folder inside assets
-    let mut dir = Path::new(env!("CARGO_MANIFEST_DIR")).join("tests");
-    dir.push("snapshots");
-
-    let mut dir_str = dir
-        .clone()
-        .into_os_string()
-        .into_string()
-        .unwrap_or_default();
-    dir_str.push(std::path::MAIN_SEPARATOR);
-
-    // Create a new engine with default context
-    let mut engine_state = create_default_context();
-
-    // New stack
-    let mut stack = Stack::new();
-
-    // Add pwd as env var
-    stack.add_env_var(
-        "PWD".to_string(),
-        Value::String {
-            val: dir_str.clone(),
-            span: nu_protocol::Span::new(0, dir_str.len()),
-        },
-    );
-
-    #[cfg(windows)]
-    stack.add_env_var(
-        "Path".to_string(),
-        Value::String {
-            val: "c:\\some\\path;c:\\some\\other\\path".to_string(),
-            span: nu_protocol::Span::new(0, dir_str.len()),
-        },
-    );
-
-    #[cfg(not(windows))]
-    stack.add_env_var(
-        "PATH".to_string(),
-        Value::String {
-            val: "/some/path:/some/other/path".to_string(),
-            span: nu_protocol::Span::new(0, dir_str.len()),
-        },
-    );
-
-    // Merge environment into the permanent state
-    let merge_result = engine_state.merge_env(&mut stack, &dir);
-    assert!(merge_result.is_ok(), "{}", merge_result.unwrap_err());
-
-    (dir, engine_state, stack)
-}
-
-fn external_completion(file_name: &str) -> NuCompleter {
-    // Create a new engine
-    let (dir, mut engine_state, mut stack) = new_engine();
-
-    let path = dir.join(file_name);
-    let mut buf = Vec::new();
-    let mut file =
-        File::open(&path).unwrap_or_else(|_| panic!("Failed to open {}", path.display()));
-    file.read_to_end(&mut buf)
-        .unwrap_or_else(|_| panic!("Failed to open {}", path.display()));
-
-    let (_, delta) = {
-        let mut working_set = StateWorkingSet::new(&engine_state);
-        let (block, err) = parse(&mut working_set, None, &buf, false, &[]);
-        assert!(err.is_none(), "{:?}", err.unwrap());
-
-        (block, working_set.render())
-    };
-
-    assert!(engine_state.merge_delta(delta).is_ok());
-
-    // Merge environment into the permanent state
-    assert!(engine_state.merge_env(&mut stack, &dir).is_ok());
-
-    let latest_block_id = engine_state.num_blocks() - 1;
-
-    // Change config adding the external completer
-    let mut config = engine_state.get_config().clone();
-    config.external_completer = Some(latest_block_id);
-    engine_state.set_config(&config);
-
-    // Instantiate a new completer
-    NuCompleter::new(Arc::new(engine_state), stack)
-}
-
-// match a list of suggestions with the expected values
-#[track_caller]
-fn assert_suggestions(expected: &[&str], suggestions: Vec<Suggestion>) {
-    let expected = expected
-        .iter()
-        .map(|s| (*s).to_owned())
-        .collect::<Vec<String>>();
-    let suggestions = suggestions
-        .into_iter()
-        .map(|s| s.value)
-        .collect::<Vec<String>>();
-    assert_eq!(expected, suggestions);
+#[test]
+fn register_completion() {
+    common::register_example("test", completest::Shell::Nu);
 }
 
 #[test]
-fn completion_basic() {
-    let mut completer = external_completion("basic.nu");
+fn completion() {
+    let term = completest::Term::new();
+    let mut runtime = common::load_runtime("test", completest::Shell::Nu);
 
-    let input = "my-app -";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["--help", "-c", "-h", "-v"];
-    assert_suggestions(expected, suggestions);
+    let input = "test -\t";
+    let expected = r#"% test -
+--generate    generate
+--global    everywhere
+--help    Print help
+--version    Print version
+-V    Print version
+-h    Print help
+"#;
+    let actual = runtime.complete(input, &term).unwrap();
+    snapbox::assert_eq(expected, actual);
 
-    let input = "my-app test -";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["--help", "-c", "-d", "-h"];
-    assert_suggestions(expected, suggestions);
-}
-
-#[test]
-fn completion_feature_sample() {
-    let mut completer = external_completion("feature_sample.nu");
-
-    let input = "my-app test --";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["--case", "--help", "--version"];
-    assert_suggestions(expected, suggestions);
-
-    let input = "my-app choice ";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["first", "second"];
-    assert_suggestions(expected, suggestions);
-
-    let input = "my-app -";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &[
-        "--conf",
-        "--config",
-        "--help",
-        "--version",
-        "-C",
-        "-V",
-        "-c",
-        "-h",
-    ];
-    assert_suggestions(expected, suggestions);
-
-    let input = "my-app --";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["--conf", "--config", "--help", "--version"];
-    assert_suggestions(expected, suggestions);
-}
-
-#[test]
-fn completion_special_commands() {
-    let mut completer = external_completion("special_commands.nu");
-
-    let input = "my-app some";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &[
-        "my-app some_cmd",
-        "my-app some-hidden-cmd",
-        "my-app some-cmd-with-hyphens",
-    ];
-    assert_suggestions(expected, suggestions);
-
-    let input = "my-app choice ";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["first", "second"];
-    assert_suggestions(expected, suggestions);
-
-    let input = "my-app -";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &[
-        "--conf",
-        "--config",
-        "--help",
-        "--version",
-        "-C",
-        "-V",
-        "-c",
-        "-h",
-    ];
-    assert_suggestions(expected, suggestions);
-
-    let input = "my-app --";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["--conf", "--config", "--help", "--version"];
-    assert_suggestions(expected, suggestions);
-}
-
-#[test]
-fn completion_quoting() {
-    let mut completer = external_completion("quoting.nu");
-
-    let input = "my-app cmd-s";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["my-app cmd-single-quotes"];
-    assert_suggestions(expected, suggestions);
-
-    let input = "my-app --";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &[
-        "--backslash",
-        "--backticks",
-        "--brackets",
-        "--double-quotes",
-        "--expansions",
-        "--help",
-        "--single-quotes",
-        "--version",
-    ];
-    assert_suggestions(expected, suggestions);
-}
-
-#[test]
-fn completion_aliases() {
-    let mut completer = external_completion("aliases.nu");
-
-    let input = "my-app -";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &[
-        "--flag",
-        "--flg",
-        "--help",
-        "--opt",
-        "--option",
-        "--version",
-        "-F",
-        "-O",
-        "-V",
-        "-f",
-        "-h",
-        "-o",
-    ];
-    assert_suggestions(expected, suggestions);
-}
-
-#[test]
-fn completion_sub_subcommands() {
-    let mut completer = external_completion("sub_subcommands.nu");
-
-    let input = "my-app";
-    let mut suggestions = completer.complete(input, input.len());
-    suggestions.sort_by_key(|s| s.value.clone());
-    let expected = &[
-        "my-app",
-        "my-app help",
-        "my-app help help",
-        "my-app help some_cmd",
-        "my-app help some_cmd sub_cmd",
-        "my-app help test",
-        "my-app some_cmd",
-        "my-app some_cmd help",
-        "my-app some_cmd help help",
-        "my-app some_cmd help sub_cmd",
-        "my-app some_cmd sub_cmd",
-        "my-app test",
-    ];
-    assert_suggestions(expected, suggestions);
-
-    let input = "my-app some_cmd sub_cmd -";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["--config", "--help", "--version", "-V", "-h"];
-    assert_suggestions(expected, suggestions);
-
-    let input = "my-app some_cmd sub_cmd --config ";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &[
-        "\"Lest quotes, aren't escaped.\"",
-        "\"Second to trigger display of options\"",
-    ];
-    assert_suggestions(expected, suggestions);
+    let input = "test action -\t";
+    let expected = r#"% test action -
+--choice    enum
+--count    number
+--global    everywhere
+--help    Print help
+--set    value
+--set-true    bool
+--version    Print version
+-V    Print version
+-h    Print help
+"#;
+    let actual = runtime.complete(input, &term).unwrap();
+    snapbox::assert_eq(expected, actual);
 }
 
 #[test]
 fn completion_value_hint() {
-    let mut completer = external_completion("value_hint.nu");
+    let term = completest::Term::new();
+    let mut runtime = common::load_runtime("test", completest::Shell::Nu);
 
-    let input = "my-app -";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &[
-        "--choice",
-        "--cmd",
-        "--cmd-name",
-        "--dir",
-        "--email",
-        "--exe",
-        "--file",
-        "--help",
-        "--host",
-        "--other",
-        "--path",
-        "--unknown",
-        "--url",
-        "--user",
-        "-H",
-        "-c",
-        "-d",
-        "-e",
-        "-f",
-        "-h",
-        "-p",
-        "-u",
-    ];
-    assert_suggestions(expected, suggestions);
+    let input = "test hint -\t";
+    let expected = r#"% test hint -
+--choice
+--cmd
+--cmd-name
+--dir
+--email
+--exe
+--file
+--global    everywhere
+--help    Print help
+--host
+--other
+--path
+--unknown
+--url
+--user
+--version    Print version
+-H
+-V    Print version
+-c
+-d
+-e
+-f
+-h    Print help
+-p
+-u
+"#;
+    let actual = runtime.complete(input, &term).unwrap();
+    snapbox::assert_eq(expected, actual);
 
-    let input = "my-app --choice ";
-    let suggestions = completer.complete(input, input.len());
-    let expected = &["bash", "fish", "zsh"];
-    assert_suggestions(expected, suggestions);
+    let input = "test hint --choice \t";
+    let expected = r#"% test hint --choice 
+bash
+fish
+zsh
+"#;
+    let actual = runtime.complete(input, &term).unwrap();
+    snapbox::assert_eq(expected, actual);
 }
diff --git a/clap_complete_nushell/tests/snapshots/home/test/nu/.config/nushell/completions/test.nu b/clap_complete_nushell/tests/snapshots/home/test/nu/.config/nushell/completions/test.nu
new file mode 100644
index 00000000..b8e0d6d4
--- /dev/null
+++ b/clap_complete_nushell/tests/snapshots/home/test/nu/.config/nushell/completions/test.nu
@@ -0,0 +1,258 @@
+module completions {
+
+  export extern test [
+    --global                  # everywhere
+    --generate: string        # generate
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  def "nu-complete test action choice" [] {
+    [ "first" "second" ]
+  }
+
+  export extern "test action" [
+    --set-true                # bool
+    --set: string             # value
+    --count                   # number
+    --choice: string@"nu-complete test action choice" # enum
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  export extern "test quote" [
+    --single-quotes           # Can be 'always', 'auto', or 'never'
+    --double-quotes           # Can be "always", "auto", or "never"
+    --backticks               # For more information see `echo test`
+    --backslash               # Avoid '\n'
+    --brackets                # List packages [filter]
+    --expansions              # Execute the shell command with $SHELL
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # Can be 'always', 'auto', or 'never'
+  export extern "test quote cmd-single-quotes" [
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # Can be "always", "auto", or "never"
+  export extern "test quote cmd-double-quotes" [
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # For more information see `echo test`
+  export extern "test quote cmd-backticks" [
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # Avoid '\n'
+  export extern "test quote cmd-backslash" [
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # List packages [filter]
+  export extern "test quote cmd-brackets" [
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # Execute the shell command with $SHELL
+  export extern "test quote cmd-expansions" [
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # Print this message or the help of the given subcommand(s)
+  export extern "test quote help" [
+  ]
+
+  # Can be 'always', 'auto', or 'never'
+  export extern "test quote help cmd-single-quotes" [
+  ]
+
+  # Can be "always", "auto", or "never"
+  export extern "test quote help cmd-double-quotes" [
+  ]
+
+  # For more information see `echo test`
+  export extern "test quote help cmd-backticks" [
+  ]
+
+  # Avoid '\n'
+  export extern "test quote help cmd-backslash" [
+  ]
+
+  # List packages [filter]
+  export extern "test quote help cmd-brackets" [
+  ]
+
+  # Execute the shell command with $SHELL
+  export extern "test quote help cmd-expansions" [
+  ]
+
+  # Print this message or the help of the given subcommand(s)
+  export extern "test quote help help" [
+  ]
+
+  export extern "test value" [
+    --delim: string
+    --tuple: string
+    --require-eq: string
+    ...term: string
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  export extern "test pacman" [
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  export extern "test pacman one" [
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  export extern "test pacman two" [
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # Print this message or the help of the given subcommand(s)
+  export extern "test pacman help" [
+  ]
+
+  export extern "test pacman help one" [
+  ]
+
+  export extern "test pacman help two" [
+  ]
+
+  # Print this message or the help of the given subcommand(s)
+  export extern "test pacman help help" [
+  ]
+
+  export extern "test last" [
+    first?: string
+    free?: string
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  export extern "test alias" [
+    --flag(-f)                # cmd flag
+    --flg                     # cmd flag
+    -F                        # cmd flag
+    --option(-o): string      # cmd option
+    --opt: string             # cmd option
+    -O: string                # cmd option
+    positional?: string
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  def "nu-complete test hint choice" [] {
+    [ "bash" "fish" "zsh" ]
+  }
+
+  export extern "test hint" [
+    --choice: string@"nu-complete test hint choice"
+    --unknown: string
+    --other: string
+    --path(-p): string
+    --file(-f): string
+    --dir(-d): string
+    --exe(-e): string
+    --cmd-name: string
+    --cmd(-c): string
+    command_with_args?: string
+    --user(-u): string
+    --host(-H): string
+    --url: string
+    --email: string
+    --global                  # everywhere
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # Print this message or the help of the given subcommand(s)
+  export extern "test help" [
+  ]
+
+  export extern "test help action" [
+  ]
+
+  export extern "test help quote" [
+  ]
+
+  # Can be 'always', 'auto', or 'never'
+  export extern "test help quote cmd-single-quotes" [
+  ]
+
+  # Can be "always", "auto", or "never"
+  export extern "test help quote cmd-double-quotes" [
+  ]
+
+  # For more information see `echo test`
+  export extern "test help quote cmd-backticks" [
+  ]
+
+  # Avoid '\n'
+  export extern "test help quote cmd-backslash" [
+  ]
+
+  # List packages [filter]
+  export extern "test help quote cmd-brackets" [
+  ]
+
+  # Execute the shell command with $SHELL
+  export extern "test help quote cmd-expansions" [
+  ]
+
+  export extern "test help value" [
+  ]
+
+  export extern "test help pacman" [
+  ]
+
+  export extern "test help pacman one" [
+  ]
+
+  export extern "test help pacman two" [
+  ]
+
+  export extern "test help last" [
+  ]
+
+  export extern "test help alias" [
+  ]
+
+  export extern "test help hint" [
+  ]
+
+  # Print this message or the help of the given subcommand(s)
+  export extern "test help help" [
+  ]
+
+}
+
+use completions *
diff --git a/clap_complete_nushell/tests/snapshots/home/test/nu/.config/nushell/config.nu b/clap_complete_nushell/tests/snapshots/home/test/nu/.config/nushell/config.nu
new file mode 100644
index 00000000..e69de29b