Merge pull request #576 from fcollonval/ft/jest

Convert test from karma to jest

.travis.yml

@@ -1,11 +1,11 @@
 language: python
 python:
-  - 3.9-dev
+  - 3.9
   - 3.8
   - 3.7
   - 3.6
 sudo: false
-dist: xenial
+dist: bionic
 services:
   - xvfb
 env:
@@ -24,7 +24,7 @@ cache:
 before_install:
   - python -c "import fcntl; fcntl.fcntl(1, fcntl.F_SETFL, 0)"
   - pip install -U pip setuptools
-  - nvm install 8
+  - nvm install 14
   - |
     if [[ $GROUP == python ]]; then
       pip install codecov
@@ -40,11 +40,7 @@ install:
       pip install --upgrade --upgrade-strategy=eager -e ".[test]"
     fi
 before_script:
-  # Set up a virtual screen for Firefox browser testing:
   - |
-    if [[ $GROUP == js ]]; then
-      export CHROME_BIN=chromium-browser
-    fi
     git config --global user.email travis@fake.com
     git config --global user.name "Travis CI"
 script:

appveyor.yml

@@ -3,7 +3,7 @@ skip_branch_with_pr: true
 
 # environment variables
 environment:
-  nodejs_version: "8.15"
+  nodejs_version: "14"
   matrix:
     - PYTHON: "C:\\Python37-x64"
       PYTHON_VERSION: "3.7.x"

packages/nbdime/babel.config.js

@@ -0,0 +1,13 @@
+module.exports = {
+  sourceMap: "inline",
+  presets: [
+    [
+      "@babel/preset-env",
+      {
+        targets: {
+          node: "current",
+        },
+      },
+    ],
+  ],
+};

packages/nbdime/jest.config.js

@@ -0,0 +1,25 @@
+var tsConfig = require ('./tsconfig.json');
+
+var tsOptions = tsConfig["compilerOptions"];
+// Need as the test folder is not visible from the src folder
+tsOptions["rootDir"] = null;
+tsOptions["inlineSourceMap"] = true;
+
+module.exports = {
+  automock: false,
+  moduleNameMapper: {
+    '\\.(css|less|sass|scss)$': 'identity-obj-proxy',
+    '\\.(svg)$': '<rootDir>/test/jest-file-mock.js'
+  },
+  preset: 'ts-jest/presets/js-with-babel',
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
+  setupFiles: ['<rootDir>/test/jest-setup-files.js'],
+  testPathIgnorePatterns: ['/lib/', '/node_modules/'],
+  testRegex: '/test/src/.*.spec.ts$',
+  transformIgnorePatterns: ['/node_modules/(?!(@jupyterlab/.*)/)'],
+  globals: {
+    'ts-jest': {
+      tsconfig: tsOptions
+    }
+  }
+};

packages/nbdime/package.json

@@ -15,10 +15,7 @@
     "build:dev": "tsc --project .",
     "clean": "rimraf test/build && rimraf lib",
     "prepublishOnly": "npm run build",
-    "test": "npm run test:firefox",
-    "test:chrome": "karma start --browsers=Chrome test/karma.conf.js",
-    "test:debug": "karma start --browsers=Chrome --singleRun=false --debug=true test/karma-nocov.conf.js",
-    "test:firefox": "karma start --browsers=Firefox test/karma.conf.js",
+    "test": "jest --coverage",
     "watch": "tsc --build --watch"
   },
   "dependencies": {
@@ -37,23 +34,20 @@
     "json-stable-stringify": "^1.0.1"
   },
   "devDependencies": {
+    "@babel/core": "^7.5.0",
+    "@babel/preset-env": "^7.5.0",
+    "@jupyterlab/testutils": "^2.0.0",
     "@jupyterlab/apputils": "^2 || ^3",
     "@lumino/messaging": "^1.2.2",
-    "@types/expect.js": "^0.3.29",
     "@types/json-stable-stringify": "^1.0.32",
-    "@types/mocha": "^8.2.0",
+    "@types/jest": "^26.0.0",
     "@types/node": "^14.14.13",
     "@types/sanitizer": "^0.0.28",
-    "expect.js": "^0.3.1",
     "fs-extra": "^8.1.0",
-    "karma": "^5.2.3",
-    "karma-chrome-launcher": "^3.1.0",
-    "karma-firefox-launcher": "^2.1.0",
-    "karma-mocha": "^2.0.1",
-    "karma-mocha-reporter": "^2.2.5",
-    "karma-typescript": "^4.0.0",
-    "karma-typescript-es6-transform": "^4.0.0",
-    "mocha": "^8.2.1",
+    "identity-obj-proxy": "^3.0.0",
+    "jest": "^26.0.0",
+    "jest-fetch-mock": "^1.6.6",
+    "ts-jest": "^26.0.0",
     "rimraf": "^2.6.3",
     "typescript": "^3.7.2"
   },

packages/nbdime/test/jest-file-mock.js

@@ -0,0 +1 @@
+module.exports = 'test-file-stub';

packages/nbdime/test/jest-setup-files.js

@@ -0,0 +1 @@
+global.fetch = require('jest-fetch-mock');

packages/nbdime/test/src/common/collapsiblepanel.spec.ts

@@ -1,8 +1,6 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import expect = require('expect.js');
-
 import {
   Widget
 } from '@lumino/widgets';
@@ -18,7 +16,7 @@ describe('common', () => {
     it('should be initialized with an inner widget', () => {
       let inner = new Widget();
       let p = new CollapsiblePanel(inner);
-      expect(p).to.not.be(null);
+      expect(p).not.toBe(null);
     });
 
   });

packages/nbdime/test/src/common/dragpanel.spec.ts

@@ -1,21 +1,17 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import expect = require('expect.js');
-
 import {
     DragDropPanel
 } from '../../../src/common/dragpanel';
 
-
-
 describe('common', () => {
 
   describe('DragPanel', () => {
 
     it('should be initialized with no options', () => {
       let p = new DragDropPanel();
-      expect(p).to.not.be(null);
+      expect(p).not.toBe(null);
     });
 
   });