The terminal works!

src/SelectionManager.test.ts

@@ -46,8 +46,8 @@ describe('SelectionManager', () => {
     window = dom.window;
     document = window.document;
     rowContainer = document.createElement('div');
-    terminal = <any>{ cols: 80, rows: 2 };
-    terminal.scrollback = 100;
+    terminal = <any>{ cols: 80, rows: 2, options: {} };
+    terminal.options.scrollback = 100;
     terminal.buffers = new BufferSet(terminal);
     terminal.buffer = terminal.buffers.active;
     bufferLines = terminal.buffer.lines;