Add js_engine input test (#38)

.github/workflows/test.yml

@@ -94,3 +94,45 @@ jobs:
           git diff --exit-code --no-index \
             tests/output/main.expected.js \
             tests/output/prod/js/main.min.js
+
+  js_engine_babel:
+    name: "js_engine / babel"
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+
+      - name: Test js_engine babel
+        uses: ./
+        with:
+          directory: "tests/js_engine"
+          output: "tests/js_engine/babel"
+          js_engine: "babel"
+
+      - name: Assert js_engine babel result matches expected
+        run: |
+          git diff --exit-code --no-index \
+            tests/js_engine/babel/main.expected.js \
+            tests/js_engine/babel/main.min.js
+
+  js_engine_uglify_js:
+    name: "js_engine / uglify-js"
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout the repository
+        uses: actions/checkout@v4
+
+      - name: Test js_engine uglify-js
+        uses: ./
+        with:
+          directory: "tests/js_engine"
+          output: "tests/js_engine/uglify-js"
+          js_engine: "uglify-js"
+
+      - name: Assert js_engine uglify-js result matches expected
+        run: |
+          git diff --exit-code --no-index \
+            tests/js_engine/uglify-js/main.expected.js \
+            tests/js_engine/uglify-js/main.min.js

tests/js_engine/main.js

@@ -0,0 +1,50 @@
+// Example JavaScript file for minification testing
+
+// Function to add two numbers
+function addNumbers(a, b) {
+  return a + b;
+}
+
+// Function to subtract two numbers
+function subtractNumbers(a, b) {
+  return a - b;
+}
+
+// Using a template string and a variable
+const name = "GitHub Actions";
+console.log(`Testing minification with ${name}!`);
+
+// An array of numbers
+const numbers = [1, 2, 3, 4, 5];
+
+// Using map to create a new array
+const doubledNumbers = numbers.map((number) => number * 2);
+console.log(doubledNumbers);
+
+// Object with methods
+const calculator = {
+  add: (x, y) => x + y,
+  subtract: (x, y) => x - y,
+  multiply: (x, y) => x * y,
+  divide: (x, y) => x / y,
+};
+
+// Using the calculator object
+console.log(calculator.add(5, 7));
+console.log(calculator.subtract(10, 5));
+
+// Testing async function
+async function fetchData(url) {
+  try {
+    const response = await fetch(url);
+    const data = await response.json();
+    console.log(data);
+  } catch (error) {
+    console.error("Error fetching data:", error);
+  }
+}
+
+// Invoking async function (this will fail without a valid URL or in a non-browser environment)
+fetchData("https://api.github.com/repos/nizarmah/auto-minify");
+
+// End of file