diff --git a/test/api.js b/test/api.js
index 2773540ba..23116f687 100644
--- a/test/api.js
+++ b/test/api.js
@@ -134,7 +134,7 @@ describe('API', () => {
 	}));
 
 	describe('posts/create', () => {
-		it('simple', () => new Promise(async (done) => {
+		it('投稿できる', () => new Promise(async (done) => {
 			const me = await insertSakurako();
 			const post = {
 				text: 'ひまわりー'
@@ -147,7 +147,7 @@ describe('API', () => {
 			});
 		}));
 
-		it('reply', () => new Promise(async (done) => {
+		it('返信できる', () => new Promise(async (done) => {
 			const hima = await insertHimawari();
 			const himaPost = await db.get('posts').insert({
 				user_id: hima._id,
@@ -170,7 +170,7 @@ describe('API', () => {
 			});
 		}));
 
-		it('repost', () => new Promise(async (done) => {
+		it('repostできる', () => new Promise(async (done) => {
 			const hima = await insertHimawari();
 			const himaPost = await db.get('posts').insert({
 				user_id: hima._id,
@@ -191,7 +191,7 @@ describe('API', () => {
 			});
 		}));
 
-		it('引用repost', () => new Promise(async (done) => {
+		it('引用repostできる', () => new Promise(async (done) => {
 			const hima = await insertHimawari();
 			const himaPost = await db.get('posts').insert({
 				user_id: hima._id,
@@ -214,6 +214,28 @@ describe('API', () => {
 			});
 		}));
 
+		it('文字数ぎりぎりで怒られない', () => new Promise(async (done) => {
+			const me = await insertSakurako();
+			const post = {
+				text: '!'.repeat(500)
+			};
+			request('/posts/create', post, me).then(res => {
+				res.should.have.status(200);
+				done();
+			});
+		}));
+
+		it('文字数オーバーで怒られる', () => new Promise(async (done) => {
+			const me = await insertSakurako();
+			const post = {
+				text: '!'.repeat(501)
+			};
+			request('/posts/create', post, me).then(res => {
+				res.should.have.status(400);
+				done();
+			});
+		}));
+
 		it('存在しないリプライ先で怒られる', () => new Promise(async (done) => {
 			const me = await insertSakurako();
 			const post = {