regular, * wildcard, and ? covered.

tests/command_ls_tests.rs

@@ -0,0 +1,69 @@
+mod helpers;
+
+use h::{in_directory as cwd, Playground, Stub::*};
+use helpers as h;
+
+#[test]
+fn ls_lists_regular_files() {
+    let sandbox = Playground::setup_for("ls_lists_files_test")
+        .with_files(vec![
+            EmptyFile("yehuda.10.txt"),
+            EmptyFile("jonathan.10.txt"),
+            EmptyFile("andres.10.txt"),
+        ])
+        .test_dir_name();
+
+    let full_path = format!("{}/{}", Playground::root(), sandbox);
+
+    nu!(
+        output,
+        cwd(&full_path),
+        "ls | get name | lines| split-column \".\" | get Column2 | str Column2 --to-int | sum | echo $it"
+    );
+
+    assert_eq!(output, "30");
+}
+
+#[test]
+fn ls_lists_regular_files_using_asterisk_wildcard() {
+    let sandbox = Playground::setup_for("ls_asterisk_wildcard_test")
+        .with_files(vec![
+            EmptyFile("los.1.txt"),
+            EmptyFile("tres.1.txt"),
+            EmptyFile("amigos.1.txt"),
+            EmptyFile("arepas.1.clu"),
+        ])
+        .test_dir_name();
+
+    let full_path = format!("{}/{}", Playground::root(), sandbox);
+
+    nu!(
+        output,
+        cwd(&full_path),
+        "ls *.txt | get name | lines| split-column \".\" | get Column2 | str Column2 --to-int | sum | echo $it"
+    );
+
+    assert_eq!(output, "3");
+}
+
+#[test]
+fn ls_lists_regular_files_using_question_mark_wildcard() {
+    let sandbox = Playground::setup_for("ls_question_mark_wildcard_test")
+        .with_files(vec![
+            EmptyFile("yehuda.10.txt"),
+            EmptyFile("jonathan.10.txt"),
+            EmptyFile("andres.10.txt"),
+            EmptyFile("chicken_not_to_be_picked_up.100.txt"),
+        ])
+        .test_dir_name();
+
+    let full_path = format!("{}/{}", Playground::root(), sandbox);
+
+    nu!(
+        output,
+        cwd(&full_path),
+        "ls *.??.txt | get name | lines| split-column \".\" | get Column2 | str Column2 --to-int | sum | echo $it"
+    );
+
+    assert_eq!(output, "30");
+}