nu-cli/completions: added tests for dotnu completions (#5460)

crates/nu-cli/src/completions/dotnu_completions.rs

@@ -58,7 +58,7 @@ impl Completer for DotNuCompletion {
             };
 
         // Check if the base_dir is a folder
-        if base_dir != "./" {
+        if base_dir != format!(".{}", SEP) {
             // Add the base dir into the directories to be searched
             search_dirs.push(base_dir.clone());
 

crates/nu-cli/tests/test_completions.rs

@@ -2,11 +2,51 @@ use std::path::PathBuf;
 
 use nu_cli::NuCompleter;
 use nu_command::create_default_context;
-use nu_protocol::engine::{EngineState, Stack};
+use nu_protocol::{
+    engine::{EngineState, Stack, StateDelta},
+    Value,
+};
 use nu_test_support::fs;
 use reedline::{Completer, Suggestion};
 const SEP: char = std::path::MAIN_SEPARATOR;
 
+#[test]
+fn dotnu_completions() {
+    // Create a new engine
+    let (_, dir_str, engine) = new_engine();
+
+    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 {
+                start: 0,
+                end: dir_str.len(),
+            },
+        },
+    );
+
+    // Instatiate a new completer
+    let mut completer = NuCompleter::new(std::sync::Arc::new(engine), stack);
+
+    // Test source completion
+    let completion_str = "source ".to_string();
+    let suggestions = completer.complete(&completion_str, completion_str.len());
+
+    assert_eq!(1, suggestions.len());
+    assert_eq!("test_dotnu.nu", suggestions.get(0).unwrap().value);
+
+    // Test use completion
+    let completion_str = "use ".to_string();
+    let suggestions = completer.complete(&completion_str, completion_str.len());
+
+    assert_eq!(1, suggestions.len());
+    assert_eq!("test_dotnu.nu", suggestions.get(0).unwrap().value);
+}
+
 #[test]
 fn flag_completions() {
     // Create a new engine
@@ -16,7 +56,6 @@ fn flag_completions() {
 
     // 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 -", 4);
 
@@ -61,6 +100,7 @@ fn file_completions() {
         folder(dir.join("test_a")),
         folder(dir.join("test_b")),
         folder(dir.join("another")),
+        file(dir.join("test_dotnu.nu")),
         file(dir.join(".hidden_file")),
         folder(dir.join(".hidden_folder")),
     ];
@@ -116,8 +156,31 @@ pub fn new_engine() -> (PathBuf, String, EngineState) {
         .unwrap_or_default();
     dir_str.push(SEP);
 
-    // Create a default engine
-    (dir.clone(), dir_str, create_default_context(dir))
+    // Create a new engine with default context
+    let mut engine_state = create_default_context(&dir);
+
+    // New stack
+    let mut stack = Stack::new();
+
+    // New delta
+    let delta = StateDelta::new(&engine_state);
+
+    // Add pwd as env var
+    stack.add_env_var(
+        "PWD".to_string(),
+        Value::String {
+            val: dir_str.clone(),
+            span: nu_protocol::Span {
+                start: 0,
+                end: dir_str.len(),
+            },
+        },
+    );
+
+    // Merge delta
+    let _ = engine_state.merge_delta(delta, Some(&mut stack), &dir);
+
+    (dir.clone(), dir_str, engine_state)
 }
 
 // match a list of suggestions with the expected values

tests/fixtures/completions/test_dotnu.nu

@@ -0,0 +1,3 @@
+def test[] {
+    Just a test
+}