diff lib-tests/spec/session.spec.ts @ 509:041468f553e1 tip master

Merge pull request #57 from LucasThompson/fix/session-stack-max-call-stack

Fix accidental recursion in PersistentStack

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib-tests/spec/session.spec.ts	Mon Nov 27 11:04:30 2017 +0000
@@ -0,0 +1,16 @@
+import { PersistentStack } from '../../src/app/Session';
+import * as jasmine from 'jasmine-core';
+
+describe('PersistentStack', () => {
+  it('can add values to the front and maintain undo history', () => {
+    const stack = new PersistentStack<number>();
+    stack.unshift(1);
+    stack.unshift(2);
+    expect(stack.get(0)).toBe(2);
+    expect(stack.get(1)).toBe(1);
+    stack.stepBack();
+    expect(stack.get(0)).toBe(1);
+    expect(stack.get(1)).toBeUndefined();
+  });
+});
+