package vault

import "testing"

func TestBarrierView(t *testing.T) {
	_, barrier, _ := mockBarrier(t)
	view := NewBarrierView(barrier, "foo/")

	// Write a key outside of foo/
	entry := &Entry{Key: "test", Value: []byte("test")}
	if err := barrier.Put(entry); err != nil {
		t.Fatalf("bad: %v", err)
	}

	// List should have no visibility
	keys, err := view.List("")
	if err != nil {
		t.Fatalf("err: %v", err)
	}
	if len(keys) != 0 {
		t.Fatalf("bad: %v", err)
	}

	// Get should have no visibility
	out, err := view.Get("test")
	if err != nil {
		t.Fatalf("err: %v", err)
	}
	if out != nil {
		t.Fatalf("bad: %v", out)
	}

	// Try to put the same entry via the view
	if err := view.Put(entry); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Check it is nested
	out, err = barrier.Get("foo/test")
	if err != nil {
		t.Fatalf("err: %v", err)
	}
	if out == nil {
		t.Fatalf("missing nested foo/test")
	}

	// Delete nested
	if err := view.Delete("test"); err != nil {
		t.Fatalf("err: %v", err)
	}

	// Check the nested key
	out, err = barrier.Get("foo/test")
	if err != nil {
		t.Fatalf("err: %v", err)
	}
	if out != nil {
		t.Fatalf("nested foo/test should be gone")
	}

	// Check the non-nested key
	out, err = barrier.Get("test")
	if err != nil {
		t.Fatalf("err: %v", err)
	}
	if out == nil {
		t.Fatalf("root test missing")
	}
}