Hash test at 100%

test/utils/hash.test.js

@@ -1,12 +1,10 @@
 import DOM from '../../src/js/utils/dom';
 import Hash from '../../src/js/plugins/hash';
 
-beforeAll(() => {
+describe('Hash utility', () => {
   document.body.innerHTML =
       `<div id="webslides" data-test="test"><p>Text</p></div>`;
-});
 
-test('Hash plugin', () => {
   document.location.hash = '#slide=1';
   const goto = jest.fn();
   const ws = document.getElementById('webslides');
@@ -20,10 +18,13 @@ test('Hash plugin', () => {
     el: ws
   };
 
+  test('Make sure it has not changed the slide', () => {
     expect(goto).not.toBeCalled();
+  });
 
   new Hash(webslides);
 
+  test('Move to slide 1', () => {
     expect(Hash.getSlideNumber()).toBe(0);
     DOM.fireEvent(ws, 'ws:slide-change', {
       slides: 3,
@@ -35,4 +36,28 @@ test('Hash plugin', () => {
 
     DOM.fireEvent(window, 'hashchange');
     expect(goto.mock.calls.length).toBe(1);
+  });
+
+  test('Forces slide change', () => {
+    Hash.setSlideNumber(5);
+    const state = history.state;
+    expect(state.slideI).toBe(4);
+  });
+
+  test('Wrong hash', () => {
+    document.location.hash = 'slide=NaN';
+    DOM.fireEvent(window, 'hashchange');
+    // It shouldn't be call.
+    expect(goto.mock.calls.length).toBe(1);
+    expect(Hash.getSlideNumber()).toBe(null);
+  });
+
+  test('Repeat slide change', () => {
+    Hash.setSlideNumber(5);
+    let state = history.state;
+    expect(state.slideI).toBe(4);
+    Hash.setSlideNumber(5);
+    state = history.state;
+    expect(state.slideI).toBe(4);
+  });
 });