From ca75cd7c0a760d963c33a592492fe299d2ee3750 Mon Sep 17 00:00:00 2001
From: Herlon Aguiar <me@herlon.dev>
Date: Sat, 7 May 2022 22:19:48 +0200
Subject: [PATCH] nu-cli/completions: add tests for flag completions (#5468)

---
 crates/nu-cli/tests/test_completions.rs | 34 +++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/crates/nu-cli/tests/test_completions.rs b/crates/nu-cli/tests/test_completions.rs
index 7ea7b1c93a..ec56a9779c 100644
--- a/crates/nu-cli/tests/test_completions.rs
+++ b/crates/nu-cli/tests/test_completions.rs
@@ -7,6 +7,40 @@ use nu_test_support::fs;
 use reedline::{Completer, Suggestion};
 const SEP: char = std::path::MAIN_SEPARATOR;
 
+#[test]
+fn flag_completions() {
+    // Create a new engine
+    let (_, _, engine) = new_engine();
+
+    let stack = Stack::new();
+
+    // Instatiate a new completer
+    let mut completer = NuCompleter::new(std::sync::Arc::new(engine), stack);
+
+    // Test completions for the 'ls' flags
+    let suggestions = completer.complete("ls -".into(), 4);
+
+    assert_eq!(12, suggestions.len());
+
+    let expected: Vec<String> = vec![
+        "--all".into(),
+        "--du".into(),
+        "--full-paths".into(),
+        "--help".into(),
+        "--long".into(),
+        "--short-names".into(),
+        "-a".into(),
+        "-d".into(),
+        "-f".into(),
+        "-h".into(),
+        "-l".into(),
+        "-s".into(),
+    ];
+
+    // Match results
+    match_suggestions(expected, suggestions);
+}
+
 #[test]
 fn file_completions() {
     // Create a new engine