breaking: update to latest jest (#190)

BREAKING CHANGE: Changed from babel `es2015` and `stage-2` presets to `babel-preset-env`, so for certain browsers support might have changed. Though currently the support is aligned with our supported browsers.

* Update to latest jest

* Add editorconfig

* Remove ignored tests

* Update api test

* Update ModelBase test

* Update Model tests

* Add back babel-loader

* Update remaining model tests

* Unignore remaining tests

* Remove done callback from tests

* Remove validate npm script

* Fix unhandled promise rejection for Pager test

* Fix unhandled promise rejection for ModelValidation test

* Fix deprecated buffer usage

* Bump node version

* Remove eslint disable lines

* Update SystemConfiguration tests

* Fix eslintrc trailing newline

* Fix trailing spaces

* Revert to original error handling style

* Remove unnecessary catch

.babelrc

@@ -1,8 +1,20 @@
 {
-    "presets": ["es2015", "stage-2"],
-    "env": {
-        "test": {
-            "presets": ["es2015", "stage-2"],
-        }
-    },
+  "presets": [
+    "@babel/preset-env"
+  ],
+  "plugins": ["@babel/plugin-proposal-class-properties"],
+  "env": {
+    "test": {
+      "presets": [
+        [
+          "@babel/preset-env",
+          {
+            "targets": {
+              "node": "current",
+            }
+          },
+        ]
+      ]
+    }
+  }
 }

.browserslistrc

@@ -0,0 +1,5 @@
+> 0.5%
+last 2 versions
+Firefox ESR
+ie 11
+not dead

.editorconfig

@@ -0,0 +1,16 @@
+# For more information about the properties used in
+# this file, please see the EditorConfig documentation:
+# https://editorconfig.org/
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-- 8
+- 10
 before_script:
 - npm install --global @dhis2/deploy-build
 script:

package.json

@@ -33,22 +33,20 @@
     "whatwg-fetch": "^2.0.3"
   },
   "devDependencies": {
-    "babel-cli": "^6.24.0",
-    "babel-core": "^6.24.0",
-    "babel-eslint": "^7.2.3",
-    "babel-jest": "^22.4.3",
-    "babel-loader": "^7.0.0",
-    "babel-polyfill": "^6.23.0",
-    "babel-preset-es2015": "^6.24.0",
-    "babel-preset-stage-2": "^6.18.0",
+    "@babel/cli": "^7.2.3",
+    "@babel/core": "^7.3.3",
+    "@babel/plugin-proposal-class-properties": "^7.3.3",
+    "@babel/preset-env": "^7.3.1",
+    "babel-eslint": "^10.0.1",
+    "babel-loader": "^8.0.5",
     "canonical-path": "0.0.2",
     "codeclimate-test-reporter": "^0.4.1",
     "docdash": "^0.4.0",
     "eslint-config-dhis2": "^3.0.2",
     "esprima": "^3.1.3",
     "form-data": "^2.1.2",
     "isomorphic-fetch": "^2.2.1",
-    "jest": "^21.0.2",
+    "jest": "^24.1.0",
     "jsdoc": "^3.5.5",
     "karma-cli": "^1.0.1",
     "lodash": "^4.17.4",

src/__tests__/Config_spec.js

@@ -24,7 +24,7 @@ describe('Config', () => {
     });
 
     it('should not be allowed to call as function', () => {
-        expect(() => Config()).toThrowError();  // eslint-disable-line
+        expect(() => Config()).toThrowError();
     });
 
     describe('processConfigForD2', () => {