diff --git a/app/test/version.test.js b/app/test/version.test.js
index 5d3a636..a49f022 100644
--- a/app/test/version.test.js
+++ b/app/test/version.test.js
@@ -8,6 +8,7 @@ const {
     latestStableVersion,
     nextReleaseVersion,
     nextBetaNumber,
+    nextVersion,
     calculateVersion,
 } = require('../version');
 
@@ -77,6 +78,16 @@ test('nextBetaNumber 取對應 beta 流水號最大值 + 1', () => {
     assert.equal(nextBetaNumber(releases, '1.2.4'), 4);
 });
 
+test('nextVersion 依舊版本計算下一個穩定版', () => {
+    assert.equal(nextVersion('1.2.3', [], false), '1.2.4');
+    assert.equal(nextVersion('0.0.0', [], false), '0.0.1');
+});
+
+test('nextVersion 依舊版本計算下一個 beta 版', () => {
+    const releases = [{ tag_name: 'v1.2.4-beta.2' }];
+    assert.equal(nextVersion('1.2.3', releases, true), '1.2.4-beta.3');
+});
+
 test('calculateVersion 計算下一個穩定版', () => {
     assert.deepEqual(
         calculateVersion([{ tag_name: 'v1.2.3' }], false),