test: add a failing test for no-unused-modules / destructured exports

KristjanTammekivi · Apr 27, 2021 · aecb641 · aecb641
1 parent e871a9a
commit aecb641
Showing 1 changed file with 27 additions and 0 deletions.
diff --git a/tests/src/rules/no-unused-modules.js b/tests/src/rules/no-unused-modules.js
@@ -663,6 +663,33 @@ describe('test behaviour for new file', () => {
   });
 });
 
+describe('test behaviour for destructured exports', () => {
+  before(() => {
+    fs.writeFileSync(testFilePath('./no-unused-modules/file-added-3.js'), '', { encoding: 'utf8' });
+  });
+  ruleTester.run('no-unused-modules', rule, {
+    valid: [
+      test({ options: unusedExportsOptions,
+        code: `import { added } from '${testFilePath('./no-unused-modules/file-added-3.js')}'`,
+        filename: testFilePath('./no-unused-modules/file-added-1.js') }),
+      test({ options: unusedExportsOptions,
+        code: `export const { added } = {};`,
+        filename: testFilePath('./no-unused-modules/file-added-3.js') }),
+    ],
+    invalid: [
+      test({ options: unusedExportsOptions,
+        code: `export const { added } = {};`,
+        filename: testFilePath('./no-unused-modules/file-added-3.js'),
+        errors: [`exported declaration 'added' not used within other modules`] }),
+    ],
+  });
+  after(() => {
+    if (fs.existsSync(testFilePath('./no-unused-modules/file-added-3.js'))) {
+      fs.unlinkSync(testFilePath('./no-unused-modules/file-added-3.js'));
+    }
+  });
+});
+
 describe('test behaviour for new file', () => {
   before(() => {
     fs.writeFileSync(testFilePath('./no-unused-modules/file-added-4.js.js'), '', { encoding: 'utf8' });