From 2182feb488290439b0925b85a853b6f65c063d0e Mon Sep 17 00:00:00 2001
From: Vishvamsinh Vaghela <vaghelavishvamsinh11111@gmail.com>
Date: Thu, 17 Oct 2024 13:05:30 +0530
Subject: [PATCH] tests updated

---
 scripts/build-post-list.js    |  5 +++-
 tests/build-post-list.test.js | 45 ++++++++++++++++++++++++++++++++++-
 2 files changed, 48 insertions(+), 2 deletions(-)

diff --git a/scripts/build-post-list.js b/scripts/build-post-list.js
index 75867807292f..84fe1caebec1 100644
--- a/scripts/build-post-list.js
+++ b/scripts/build-post-list.js
@@ -28,6 +28,9 @@ const addItem = (details) => {
 
 async function buildPostList(postDirectories, basePath, writeFilePath) {
   try {
+    if (postDirectories.length === 0) {
+      throw new Error('Error while building post list: No post directories provided');
+    }
     walkDirectories(postDirectories, result, basePath)
     const treePosts = buildNavTree(result["docs"].filter((p) => p.slug.startsWith('/docs/')))
     result["docsTree"] = treePosts
@@ -157,4 +160,4 @@ function capitalize(text) {
   return text.split(/[\s\-]/g).map(word => `${word[0].toUpperCase()}${word.substr(1)}`).join(' ')
 }
 
-module.exports = {slugifyToC, buildPostList}
\ No newline at end of file
+module.exports = {slugifyToC, buildPostList}
diff --git a/tests/build-post-list.test.js b/tests/build-post-list.test.js
index a1c0113ced5b..7eda419e444b 100644
--- a/tests/build-post-list.test.js
+++ b/tests/build-post-list.test.js
@@ -145,4 +145,47 @@ describe('buildPostList', () => {
     expect(explorerEntry).toBeUndefined();
   });
 
-});
\ No newline at end of file
+  it('throws an error if the directory cannot be read', async () => {
+    const invalidDir = [join(tempDir, 'non-existent-dir'), '/invalid'];
+
+    let error;
+    try {
+      await buildPostList([invalidDir], tempDir, writeFilePath);
+    } catch (err) {
+      error = err;
+    }
+
+    expect(error).toBeDefined();
+    expect(error.message).toMatch(/Error while building post list/);
+  });
+
+
+  it('throws an error if the front matter cannot be parsed', async () => {
+    writeFileSync(join(tempDir, 'docs', 'invalid.mdx'), '---\ninvalid front matter\n---\nContent');
+
+    let error;
+    try {
+      await buildPostList(postDirectories, tempDir, writeFilePath);
+    } catch (err) {
+      error = err;
+    }
+
+    expect(error).toBeDefined();
+    expect(error.message).toMatch(/Error while building post list/);
+  });
+
+  it('throws an error if no post directories are provided', async () => {
+
+    let error;
+
+    try {
+      await buildPostList([], tempDir, writeFilePath);
+    } catch (err) {
+      error = err;
+    }
+
+    expect(error).toBeDefined();
+    expect(error.message).toMatch(/Error while building post list/);
+  });
+  
+});