test: add bind test to ensure removing attribute doesnt fire bind

Author: keithamus

test/bind.js

@@ -199,4 +199,19 @@ describe('bind', () => {
     instance.querySelector('button').click()
     expect(instance.foo).to.have.been.called.exactly(1)
   })
+
+  it('will not fire if the binding attribute is removed', () => {
+    const instance = document.createElement('bind-test-element')
+    chai.spy.on(instance, 'foo')
+    const el1 = document.createElement('div')
+    el1.setAttribute('data-action', 'click:bind-test-element#foo')
+    instance.appendChild(el1)
+    bind(instance)
+    expect(instance.foo).to.have.not.been.called()
+    el1.click()
+    expect(instance.foo).to.have.been.called.exactly(1)
+    el1.setAttribute('data-action', 'click:other-element#foo')
+    el1.click()
+    expect(instance.foo).to.have.been.called.exactly(1)
+  })
 })