Rework jest mock tests

490ed115 · Martin Hanzel · 756d2169 · 490ed115 · 490ed115 · 756d2169
--- a/spec/frontend/mocks/gitlab/axios_utils.js
+++ b/spec/frontend/mocks/gitlab/axios_utils.js
@@ -2,6 +2,8 @@

 const axios = jest.requireActual('~/lib/utils/axios_utils').default;

+axios.isMock = true;
+
 // Fail tests for unmocked requests
 axios.defaults.adapter = config => {
  const message =

--- a/spec/frontend/mocks_spec.js
+++ b/spec/frontend/mocks_spec.js
+import $ from 'jquery';
+import axios from '~/lib/utils/axios_utils';
+
+describe('Jest mocks', () => {
+  describe('mock', () => {
+    it('~/lib/utils/axios_utils', () =>
+      expect(axios.get('http://gitlab.com')).rejects.toThrow('Unexpected unmocked request'));
+
+    it('jQuery.ajax()', () => {
+      expect($.ajax).toThrow('Unexpected unmocked');
+    });
+  });
+
+  it('survive jest.resetModules()', () => {
+      jest.resetModules();
+      // eslint-disable-next-line global-require
+      const axios2 = require('~/lib/utils/axios_utils').default;
+      expect(axios2).toBe(axios); // It's still the same mock!
+      return expect(axios2.get('http://gitlab.com')).rejects.toThrow('Unexpected unmocked request');
+  });
+
+  it('can be unmocked and remocked', () => {
+    jest.dontMock('~/lib/utils/axios_utils');
+    jest.resetModules();
+    // eslint-disable-next-line global-require
+    const axios2 = require('~/lib/utils/axios_utils').default;
+    expect(axios2).not.toBe(axios);
+    expect(axios2.isMock).toBeUndefined();
+
+    jest.doMock('~/lib/utils/axios_utils');
+    jest.resetModules();
+    // eslint-disable-next-line global-require
+    const axios3 = require('~/lib/utils/axios_utils').default;
+    expect(axios3).not.toBe(axios2);
+    expect(axios3.isMock).toBe(true);
+  });
+});
--- a/spec/frontend/tests_spec.js
+++ b/spec/frontend/tests_spec.js
-import $ from 'jquery';
-import axios from '~/lib/utils/axios_utils';
-
-describe('Jest tests', () => {
-  describe('mock', () => {
-    it('~/lib/utils/axios_utils', () =>
-      expect(axios.get('http://gitlab.com')).rejects.toThrow('Unexpected unmocked request'));
-
-    it('jQuery.ajax()', () => {
-      expect($.ajax).toThrow('Unexpected unmocked');
-    });
-  });
-});