Hello, sass-spritemaker!

test/.eslintrc.json

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+{
+  "env": {
+    "node": true,
+    "es6": true,
+    "mocha": true
+  },
+  "plugins": ["mocha"]
+}

test/spritemaker.spec.js

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+/**
+ * Copyright (c) 2019-present Tomek Wójcik <contact@bthlabs.pl>
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+var fs = require('fs');
+var path = require('path');
+
+const {expect} = require('chai');
+
+const {spritemaker} = require('../lib/spritemaker');
+
+const {rmtree} = require('./utils');
+
+const ICONS_PATH = path.resolve(__dirname, '..', 'example', 'icons', '*.png');
+const OUTPUT_NAME = 'sprite-4744971b12c28832638cc954dd787fa5';
+
+describe('spritemaker', () => {
+  let outputDir = null;
+  let defaultOptions = null;
+
+  beforeEach(() => {
+    outputDir = fs.mkdtempSync('tmp_spritemaker');
+    defaultOptions = {
+      files: [ICONS_PATH],
+      output: outputDir
+    };
+  });
+
+  afterEach(() => {
+    rmtree(outputDir);
+  });
+
+  it('should generate the sprite image', () => {
+    spritemaker(defaultOptions);
+
+    const spritePath = path.join(outputDir, `${OUTPUT_NAME}.png`);
+    expect(fs.existsSync(spritePath)).to.equal(true);
+  });
+
+  it('should generate the SCSS files', () => {
+    spritemaker(defaultOptions);
+
+    const scssPath = path.join(outputDir, `${OUTPUT_NAME}.scss`);
+    expect(fs.existsSync(scssPath)).to.equal(true);
+  });
+});

test/utils.js

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+/**
+ * Copyright (c) 2019-present Tomek Wójcik <contact@bthlabs.pl>
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+const fs = require('fs');
+const _path = require('path');
+
+const rmtree = module.exports.rmtree = (path) => {
+  if (!fs.existsSync(path)) {
+    return;
+  }
+
+  var files = fs.readdirSync(path);
+  files.forEach((file) => {
+      var filePath = _path.join(path, file);
+      if (fs.statSync(filePath).isDirectory()) {
+          rmtree(filePath);
+      } else {
+          fs.unlinkSync(filePath);
+      }
+  });
+
+  fs.rmdirSync(path);
+};