Imfs test

server/tests/imfs.rs

@@ -0,0 +1,93 @@
+use std::{
+    collections::{HashMap, HashSet},
+    io,
+    fs,
+    path::PathBuf,
+};
+
+use tempfile::tempdir;
+
+use librojo::{
+    imfs::{Imfs, ImfsItem, ImfsFile, ImfsDirectory},
+};
+
+struct ExpectedImfs {
+    roots: HashSet<PathBuf>,
+    items: HashMap<PathBuf, ImfsItem>,
+}
+
+fn check_expected(real: &Imfs, expected: &ExpectedImfs) {
+    assert_eq!(real.get_roots(), &expected.roots);
+    assert_eq!(real.get_items(), &expected.items);
+}
+
+fn base_tree() -> io::Result<(Imfs, ExpectedImfs)> {
+    let root = tempdir()?;
+
+    let foo_path = root.path().join("foo");
+    let bar_path = root.path().join("bar.txt");
+    let baz_path = foo_path.join("baz.txt");
+
+    fs::create_dir(&foo_path)?;
+    fs::write(&bar_path, b"bar")?;
+    fs::write(&baz_path, b"baz")?;
+
+    let mut imfs = Imfs::new();
+    imfs.add_root(root.path())?;
+
+    let mut expected_roots = HashSet::new();
+    expected_roots.insert(root.path().to_path_buf());
+
+    let root_item = {
+        let mut children = HashSet::new();
+        children.insert(foo_path.clone());
+        children.insert(bar_path.clone());
+
+        ImfsItem::Directory(ImfsDirectory {
+            path: root.path().to_path_buf(),
+            children,
+        })
+    };
+
+    let foo_item = {
+        let mut children = HashSet::new();
+        children.insert(baz_path.clone());
+
+        ImfsItem::Directory(ImfsDirectory {
+            path: foo_path.clone(),
+            children,
+        })
+    };
+
+    let bar_item = ImfsItem::File(ImfsFile {
+        path: bar_path.clone(),
+        contents: b"bar".to_vec(),
+    });
+
+    let baz_item = ImfsItem::File(ImfsFile {
+        path: baz_path.clone(),
+        contents: b"baz".to_vec(),
+    });
+
+    let mut expected_items = HashMap::new();
+    expected_items.insert(root.path().to_path_buf(), root_item);
+    expected_items.insert(foo_path.clone(), foo_item);
+    expected_items.insert(bar_path.clone(), bar_item);
+    expected_items.insert(baz_path.clone(), baz_item);
+
+    let expected_imfs = ExpectedImfs {
+        roots: expected_roots,
+        items: expected_items,
+    };
+
+    Ok((imfs, expected_imfs))
+}
+
+#[test]
+fn initial_read() -> io::Result<()> {
+    let (imfs, expected_imfs) = base_tree()?;
+
+    check_expected(&imfs, &expected_imfs);
+
+    Ok(())
+}