Tests pass.

tests/command_cp_tests.rs

@@ -0,0 +1,73 @@
+mod helpers;
+
+use h::{in_directory as cwd, Playground, Stub::*};
+use helpers as h;
+
+use std::path::{Path, PathBuf};
+
+#[test]
+fn cp_copies_a_file() {
+    let sandbox = Playground::setup_for("cp_test").test_dir_name();
+
+    let full_path = format!("{}/{}", Playground::root(), sandbox);
+    let expected_file = format!("{}/{}", full_path, "sample.ini");
+
+    nu!(
+        _output,
+        cwd(&Playground::root()),
+        "cp ../formats/sample.ini cp_test/sample.ini"
+    );
+
+    assert!(h::file_exists_at(PathBuf::from(expected_file)));
+}
+
+#[test]
+fn cp_copies_the_file_inside_directory_if_path_to_copy_is_directory() {
+    let sandbox = Playground::setup_for("cp_test_2").test_dir_name();
+
+    let full_path = format!("{}/{}", Playground::root(), sandbox);
+    let expected_file = format!("{}/{}", full_path, "sample.ini");
+
+    nu!(
+        _output,
+        cwd(&Playground::root()),
+        "cp ../formats/sample.ini cp_test_2"
+    );
+
+    assert!(h::file_exists_at(PathBuf::from(expected_file)));
+}
+
+#[test]
+fn cp_error_if_attempting_to_copy_a_directory_to_another_directory() {
+    Playground::setup_for("cp_test_3");
+
+    nu_error!(output, cwd(&Playground::root()), "cp ../formats cp_test_3");
+
+    assert!(output.contains("../formats"));
+    assert!(output.contains("is a directory (not copied)"));
+}
+
+#[test]
+fn cp_copies_the_directory_inside_directory_if_path_to_copy_is_directory_and_with_recursive_flag() {
+    let sandbox = Playground::setup_for("cp_test_4")
+        .within("originals")
+        .with_files(vec![
+            EmptyFile("yehuda.txt"),
+            EmptyFile("jonathan.txt"),
+            EmptyFile("andres.txt"),
+        ])
+        .within("copies_expected")
+        .test_dir_name();
+
+    let full_path = format!("{}/{}", Playground::root(), sandbox);
+    let expected_dir = format!("{}/{}", full_path, "copies_expected/originals");
+
+    nu!(
+        _output,
+        cwd(&full_path),
+        "cp originals copies_expected --recursive"
+    );
+
+    assert!(h::dir_exists_at(PathBuf::from(&expected_dir)));
+    assert!(h::files_exist_at(vec![Path::new("yehuda.txt"), Path::new("jonathan.txt"), Path::new("andres.txt")],  PathBuf::from(&expected_dir)));
+}