Merge pull request #288 from androbtech/shellring-coverage

shellring traversal and filesystem environment retention per session.

tests/command_enter_test.rs

@@ -0,0 +1,75 @@
+mod helpers;
+
+use h::{in_directory as cwd, Playground, Stub::*};
+use helpers as h;
+use std::path::{Path, PathBuf};
+
+#[test]
+fn knows_the_filesystems_entered() {
+    let sandbox = Playground::setup_for("enter_filesystem_sessions_test")
+        .within("red_pill")
+        .with_files(vec![
+            EmptyFile("andres.nu"),
+            EmptyFile("jonathan.nu"),
+            EmptyFile("yehuda.nu"),
+        ])
+        .within("blue_pill")
+        .with_files(vec![
+            EmptyFile("bash.nxt"),
+            EmptyFile("korn.nxt"),
+            EmptyFile("powedsh.nxt"),
+        ])
+        .mkdir("expected")
+        .test_dir_name();
+
+    let full_path = format!("{}/{}", Playground::root(), sandbox);
+
+    let red_pill_dir = format!("{}/{}", full_path, "red_pill");
+    let blue_pill_dir = format!("{}/{}", full_path, "blue_pill");
+    let expected = format!("{}/{}", full_path, "expected");
+    let expected_recycled = format!("{}/{}", expected, "recycled");
+
+    nu!(
+        _output,
+        cwd(&full_path),
+        r#"
+            enter expected
+            mkdir recycled
+            enter ../red_pill
+            mv jonathan.nu ../expected
+            enter ../blue_pill
+            cp *.nxt ../expected/recycled
+            p
+            p
+            mv ../red_pill/yehuda.nu .
+            n
+            mv andres.nu ../expected/andres.nu
+            exit
+            cd ..
+            rm red_pill --recursive
+            exit
+            rm blue_pill --recursive
+            exit
+        "#
+    );
+
+    assert!(!h::dir_exists_at(PathBuf::from(red_pill_dir)));
+    assert!(h::files_exist_at(
+        vec![
+            Path::new("andres.nu"),
+            Path::new("jonathan.nu"),
+            Path::new("yehuda.nu"),
+        ],
+        PathBuf::from(&expected)
+    ));
+
+    assert!(!h::dir_exists_at(PathBuf::from(blue_pill_dir)));
+    assert!(h::files_exist_at(
+        vec![
+            Path::new("bash.nxt"),
+            Path::new("korn.nxt"),
+            Path::new("powedsh.nxt"),
+        ],
+        PathBuf::from(&expected_recycled)
+    ));
+}