feat(build): change build target to ES6 modules

BREAKING CHANGE: As output JavaScript has  ES6 module format now, supporting ES5 targets requires additional transpilation.

bsconfig.json

@@ -4,6 +4,10 @@
   "bs-dependencies": ["reason-react"],
   "bs-dev-dependencies": ["@glennsl/bs-jest"],
   "bsc-flags": ["-bs-super-errors"],
+  "package-specs": [{
+    "module": "es6",
+    "in-source": true
+  }],
   "sources": [
     {
       "dir": "src"

jest-transform.js

@@ -0,0 +1,10 @@
+module.exports = require('babel-jest').createTransformer({
+  presets: [
+    ['@babel/preset-env', {
+      modules: 'cjs',
+      targets: {
+        node: 11,
+      }
+    }]
+  ],
+});

jest.config.js

@@ -0,0 +1,14 @@
+module.exports = {
+  testMatch: [
+    "**/src/**/*_test.js"
+  ],
+  moduleFileExtensions: ['js'],
+  transform: {
+    '^.+\\.js$': './jest-transform.js',
+  },
+  transformIgnorePatterns: [
+    // transform ES6 modules generated by BuckleScript
+    // https://regexr.com/46984
+    '/node_modules/(?!(@.*/)?(bs-.*|reason-.*)/).+\\.js$',
+  ],
+};

package.json

@@ -25,6 +25,7 @@
   },
   "homepage": "https://github.com/rpowelll/bs-enzyme#readme",
   "devDependencies": {
+    "@babel/preset-env": "7.3.4",
     "@glennsl/bs-jest": "0.4.8",
     "bs-platform": "4.0.18",
     "enzyme-adapter-react-16": "1.11.2",
@@ -40,10 +41,5 @@
   "peerDependencies": {
     "bs-platform": ">=4.0.0",
     "reason-react": ">=0.5.0"
-  },
-  "jest": {
-    "testMatch": [
-      "**/src/**/*_test.js"
-    ]
   }
 }

src/Enzyme.re

@@ -87,18 +87,18 @@ type js_obj_with_adapter = {. "adapter": adapter};
 
 [@bs.module "enzyme"] external configure : js_obj_with_adapter => adapter = "configure";
 
-[@bs.module] [@bs.new] external react_16_adapter : unit => adapter = "enzyme-adapter-react-16";
+[@bs.module "enzyme-adapter-react-16"] [@bs.new] external react_16_adapter : unit => adapter = "default";
 
-[@bs.module] [@bs.new] external react_15_adapter : unit => adapter = "enzyme-adapter-react-15";
+[@bs.module "enzyme-adapter-react-15"] [@bs.new] external react_15_adapter : unit => adapter = "default";
 
-[@bs.module] [@bs.new] external react_15_4_adapter : unit => adapter = "enzyme-adapter-react-15.4";
+[@bs.module "enzyme-adapter-react-15.4"] [@bs.new] external react_15_4_adapter : unit => adapter = "default";
 
-[@bs.module] [@bs.new] external react_14_adapter : unit => adapter = "enzyme-adapter-react-14";
+[@bs.module "enzyme-adapter-react-14"] [@bs.new] external react_14_adapter : unit => adapter = "default";
 
-[@bs.module] [@bs.new] external react_13_adapter : unit => adapter = "enzyme-adapter-react-13";
+[@bs.module "enzyme-adapter-react-13"] [@bs.new] external react_13_adapter : unit => adapter = "default";
 
-[@bs.module] [@bs.new] external preact_adapter : unit => adapter = "preact-enzyme-adapter";
+[@bs.module "preact-enzyme-adapter"] [@bs.new] external preact_adapter : unit => adapter = "default";
 
-[@bs.module] [@bs.new] external inferno_adapter : unit => adapter = "enzyme-adapter-inferno";
+[@bs.module "enzyme-adapter-inferno"] [@bs.new] external inferno_adapter : unit => adapter = "default";
 
 let configureEnzyme = (adapter: adapter) => configure({"adapter": adapter});