remove unused var test

Author: Daniel Del Core

community/javascript/src/remove-unused-vars/transform.spec.ts

@@ -18,6 +18,19 @@ console.log(y);
     `);
   });
 
+  it('should remove unused variables in function declaration', async () => {
+    const result = await applyTransform(
+      transformer,
+      `export function hello() { var a = 1; debugger; }`,
+    );
+
+    expect(result).toMatchInlineSnapshot(`
+      "export function hello() {
+        debugger;
+      }"
+    `);
+  });
+
   it('should not remove used variables', async () => {
     const result = await applyTransform(
       transformer,

scripts/cli-integration-test.js

@@ -27,15 +27,20 @@ function main() {
 
   {
     const targetFilePath = path.join(__dirname, 'remove-unused-vars-test2.ts');
-    writeFileSync(targetFilePath, `function hello() { var a = 1; debugger; }`);
+    writeFileSync(
+      targetFilePath,
+      `export function hello() { var a = 1; debugger; }`,
+    );
 
     execSync(
       `npx --yes @hypermod/cli@latest --packages javascript#remove-unused-vars --experimental-loader ${targetFilePath}`,
       { stdio: 'inherit' },
     );
 
     const targetFileOutput = readFileSync(targetFilePath, 'utf-8');
-    const expectedFileOutput = `function hello() { debugger; }`;
+    const expectedFileOutput = `export function hello() {
+  debugger;
+}`;
 
     if (targetFileOutput !== expectedFileOutput) {
       throw new Error(