Use Jest

.npmignore

@@ -10,6 +10,5 @@ yarn.lock
 build/
 test/
 .travis.yml
-.eslintrc
 
 gulpfile.js

gulpfile.js

@@ -37,8 +37,8 @@ BUILD_CONFIGS.forEach(function (config) {
 gulp.task('build', BUILD_CONFIGS);
 
 gulp.task('test', ['build'], function () {
-    var mocha = require('gulp-mocha');
-    return gulp.src('build/*.js', { read: false }).pipe(mocha());
+    var jest = require('gulp-jest').default;
+    return gulp.src('build').pipe(jest());
 });
 
 gulp.task('default', ['lint', 'test']);

package.json

@@ -23,12 +23,12 @@
     "postcss-load-config": "^1.0.0"
   },
   "devDependencies": {
-    "chai": "^3.5.0",
+    "eslint": "^3.11.1",
     "eslint-config-postcss": "^2.0.2",
     "fs-extra": "^1.0.0",
     "gulp": "^3.9.1",
     "gulp-eslint": "^3.0.1",
-    "gulp-mocha": "^3.0.1",
+    "gulp-jest": "^0.6.0",
     "json-loader": "^0.5.4",
     "lint-staged": "^3.2.1",
     "postcss-js": "^0.1.3",
@@ -42,6 +42,12 @@
     "lint-staged": "lint-staged",
     "test": "gulp"
   },
+  "eslintConfig": {
+    "extends": "eslint-config-postcss/es5",
+    "env": {
+      "jest": true
+    }
+  },
   "lint-staged": {
     "*.js": "eslint"
   },

test/test-custom-parser.js

@@ -1,11 +1,9 @@
-var expect = require('chai').expect;
-
 describe('custom parser', function () {
 
     it('processes sugarss', function () {
         var css = require('!raw-loader!../!' +
                           './cases/sugar.css');
-        expect(css).to.eql('a\n  color: rgba(255, 0, 0, 0.1)\n');
+        expect(css).toEqual('a\n  color: rgba(255, 0, 0, 0.1)\n');
     });
 
 });

test/test-default.js

@@ -1,60 +1,58 @@
-var expect = require('chai').expect;
-
 describe('default', function () {
 
     it('processes CSS with default plugins', function () {
         var css = require('!raw-loader!../!./cases/style.css');
-        expect(css).to.eql('a { color: blue }\n');
+        expect(css).toEqual('a { color: blue }\n');
     });
 
     it('overrides default config by subdir config', function () {
         var css = require('!raw-loader!../!./cases/config/style.css');
-        expect(css).to.eql('a { color: black }\n');
+        expect(css).toEqual('a { color: black }\n');
     });
 
     it('send webpack instance to config', function () {
         var css = require('!raw-loader!../!./cases/env/style.css');
-        expect(css).to.eql('a::before { content: "style.css" }\n');
+        expect(css).toEqual('a::before { content: "style.css" }\n');
     });
 
     it('processes CSS in safe mode', function () {
         var css = require('!raw-loader' +
                           '!../?parser=postcss-safe-parser' +
                           '!./cases/broken.css');
-        expect(css).to.eql('a { color:\n}');
+        expect(css).toEqual('a { color:\n}');
     });
 
     it('lets other plugins alter the used plugins', function () {
         var css = require('!raw-loader!../?rewrite=true' +
                           '!./cases/style.css');
-        expect(css).to.eql('a { color: black }\n');
+        expect(css).toEqual('a { color: black }\n');
     });
 
     it('processes CSS-in-JS', function () {
         var css = require('!raw-loader' +
                           '!../?parser=postcss-js' +
                           '!./cases/style.js');
-        expect(css).to.eql('a {\n    color: blue\n}');
+        expect(css).toEqual('a {\n    color: blue\n}');
     });
 
     it('processes CSS with exec', function () {
         var css = require('!raw-loader' +
                           '!../?exec' +
                           '!./cases/exec.js');
-        expect(css).to.eql('a {\n    color: green\n}');
+        expect(css).toEqual('a {\n    color: green\n}');
     });
 
     it('inlines map', function () {
         var css = require('!raw-loader!../?sourceMap=inline' +
                           '!./cases/style.css');
-        expect(css).to.include('/*# sourceMappingURL=');
+        expect(css).toContain('/*# sourceMappingURL=');
     });
 
     it('allows to change config path', function () {
         var css = require('!raw-loader' +
                           '!../?config=test/cases/config/postcss.config.js' +
                           '!./cases/style.css');
-        expect(css).to.eql('a { color: black }\n');
+        expect(css).toEqual('a { color: black }\n');
     });
 
 });

test/test-explicit-plugins.js

@@ -1,11 +1,9 @@
-var expect = require('chai').expect;
-
 describe('explicit plugins', function () {
 
     it('processes CSS with custom plugins', function () {
         var css = require('!raw-loader!../!' +
                           './cases/style.css');
-        expect(css).to.eql('a { color: rgba(255, 0, 0, 0.1) }\n');
+        expect(css).toEqual('a { color: rgba(255, 0, 0, 0.1) }\n');
     });
 
 });

test/test-incorrect-using-packs.js

@@ -1,5 +1,3 @@
-var expect = require('chai').expect;
-
 describe('incorrect using packs', function () {
 
     it('fails to load specific pack', function () {
@@ -10,7 +8,7 @@ describe('incorrect using packs', function () {
         } catch (err) {
             error = err;
         }
-        expect(error.message).to.match(/find module/);
+        expect(error.message).toMatch(/find module/);
     });
 
 });

test/test-with-packs.js

@@ -1,17 +1,15 @@
-var expect = require('chai').expect;
-
 describe('with packs', function () {
 
     it('processes CSS with default plugins', function () {
         var css = require('!raw-loader!../!' +
                           './cases/style.css');
-        expect(css).to.eql('a { color: rgba(255, 0, 0, 0.1) }\n');
+        expect(css).toEqual('a { color: rgba(255, 0, 0, 0.1) }\n');
     });
 
     it('processes CSS with custom plugins', function () {
         var css = require('!raw-loader!../?pack=blues!' +
                           './cases/style.css');
-        expect(css).to.eql('a { color: blue }\n');
+        expect(css).toEqual('a { color: blue }\n');
     });
 
 });

test/webpack-custom-parser.config.js

@@ -10,6 +10,7 @@ module.exports = {
     context: __dirname,
     entry:   './test-custom-parser.js',
     output: {
+        filename: 'test-custom-parser.test.js',
         path: path.join(__dirname, '..', 'build')
     },
     postcss: function () {

test/webpack-default.config.js

@@ -7,6 +7,7 @@ module.exports = {
     context: __dirname,
     entry:   './test-default.js',
     output:  {
+        filename: 'test-default.test.js',
         path: path.join(__dirname, '..', 'build')
     },
     plugins: [

test/webpack-explicit-plugins.config.js

@@ -9,6 +9,7 @@ module.exports = {
     context: __dirname,
     entry:   './test-explicit-plugins.js',
     output: {
+        filename: 'test-explicit-plugins.test.js',
         path: path.join(__dirname, '..', 'build')
     },
     postcss: function () {

test/webpack-incorrect-using-packs.config.js

@@ -7,6 +7,7 @@ module.exports = {
     context: __dirname,
     entry:   './test-incorrect-using-packs.js',
     output:  {
+        filename: 'test-incorrect-using-packs.test.js',
         path: path.join(__dirname, '..', 'build')
     },
     plugins: [

test/webpack-with-packs.config.js

@@ -9,6 +9,7 @@ module.exports = {
     context: __dirname,
     entry:   './test-with-packs.js',
     output: {
+        filename: 'test-with-packs.test.js',
         path: path.join(__dirname, '..', 'build')
     },
     postcss: function () {