diff --git a/test/unit/milestone.test.ts b/test/unit/milestone.test.ts
new file mode 100644
index 0000000..fbea462
--- /dev/null
+++ b/test/unit/milestone.test.ts
@@ -0,0 +1,32 @@
+import { describe, expect, beforeEach, test } from 'vitest';
+
+import { Milestone } from '../../src/milestone';
+
+describe('Metadata Class', () => {
+  let milestone: Milestone;
+
+  beforeEach(() => {
+    milestone = new Milestone({
+      html_url: '',
+      number: 1,
+      title: 'v255',
+      description: 'description',
+      state: 'open',
+    });
+  });
+
+  test('can be instantiated', () => {
+    expect(milestone).toBeDefined();
+    expect(milestone).toBeInstanceOf(Milestone);
+    expect(milestone.regex).toBeInstanceOf(RegExp);
+    expect(milestone.regex.toString()).toBe('/^v255\\S*$/');
+  });
+
+  test('isCompliant()', () => {
+    expect(milestone.isCompliant('v255-rc1')).toBe(true);
+    expect(milestone.isCompliant('v255')).toBe(true);
+
+    expect(milestone.isCompliant('v256-rc1')).toBe(false);
+    expect(milestone.isCompliant('bla-bla')).toBe(false);
+  });
+});