diff --git a/.github/workflows/CI.yaml b/.github/workflows/CI.yaml
index 16665538..b2066edb 100755
--- a/.github/workflows/CI.yaml
+++ b/.github/workflows/CI.yaml
@@ -81,7 +81,6 @@ jobs:
             setup: |
               sudo apt-get update
               sudo apt-get install gcc-arm-linux-gnueabihf -y
-# sudo apt-get install libfontconfig1 -y
             build: |
               yarn build --target armv7-unknown-linux-gnueabihf
               arm-linux-gnueabihf-strip *.node
@@ -260,8 +259,8 @@ jobs:
           - host: windows-latest
             target: x86_64-pc-windows-msvc
         node:
-          # - '14'
-          # - '16'
+          - '14'
+          - '16'
           - '18'
     runs-on: ${{ matrix.settings.host }}
     steps:
@@ -297,8 +296,8 @@ jobs:
       fail-fast: false
       matrix:
         node:
-          # - '14'
-          # - '16'
+          - '14'
+          - '16'
           - '18'
     runs-on: ubuntu-latest
     steps:
@@ -325,7 +324,7 @@ jobs:
         run: ls -R .
         shell: bash
       - name: Test bindings
-        run: docker run --rm -v /usr/share/fonts:/usr/share/fonts -v $(pwd):/build -w /build node:${{ matrix.node }}-slim sh -c "find /usr/share/fonts -name *.ttf && yarn test"
+        run: docker run --rm -v /usr/share/fonts:/usr/share/fonts -v $(pwd):/build -w /build node:${{ matrix.node }}-slim yarn test"
   test-linux-x64-musl-binding:
     name: Test bindings on x86_64-unknown-linux-musl - node@${{ matrix.node }}
     needs:
@@ -334,8 +333,8 @@ jobs:
       fail-fast: false
       matrix:
         node:
-          # - '14'
-          # - '16'
+          - '14'
+          - '16'
           - '18'
     runs-on: ubuntu-latest
     steps:
@@ -364,7 +363,7 @@ jobs:
         run: ls -R .
         shell: bash
       - name: Test bindings
-        run: docker run --rm -v /usr/share/fonts:/usr/share/fonts -v $(pwd):/build -w /build node:${{ matrix.node }}-alpine sh -c "find /usr/share/fonts -name *.ttf && yarn test"
+        run: docker run --rm -v /usr/share/fonts:/usr/share/fonts -v $(pwd):/build -w /build node:${{ matrix.node }}-alpine yarn test"
   test-linux-aarch64-gnu-binding:
     name: Test bindings on aarch64-unknown-linux-gnu - node@${{ matrix.node }}
     needs:
@@ -373,8 +372,8 @@ jobs:
       fail-fast: false
       matrix:
         node:
-          # - '14'
-          # - '16'
+          - '14'
+          - '16'
           - '18'
     runs-on: ubuntu-latest
     steps:
@@ -406,9 +405,6 @@ jobs:
           run: |
             set -e
             find /usr/share/fonts -name *.ttf
-            apt-get install fontconfig -y
-            fc-cache --force
-            fc-list :lang=en
             ls -la
             yarn test
   test-linux-aarch64-musl-binding:
@@ -445,9 +441,6 @@ jobs:
           run: |
             set -e
             find /usr/share/fonts -name *.ttf
-            apk add fontconfig
-            fc-cache --force
-            fc-list :lang=en
             apk add nodejs npm yarn
             yarn test
   test-linux-arm-gnueabihf-binding:
@@ -458,8 +451,8 @@ jobs:
       fail-fast: false
       matrix:
         node:
-          # - '14'
-          # - '16'
+          - '14'
+          - '16'
           - '18'
     runs-on: ubuntu-latest
     steps:
@@ -490,9 +483,6 @@ jobs:
           run: |
             set -e
             find /usr/share/fonts -name *.ttf
-            apt-get install fontconfig -y
-            fc-cache --force
-            fc-list :lang=en
             ls -la
             yarn test
 
diff --git a/__test__/index.spec.ts b/__test__/index.spec.ts
index 1716d206..25df3650 100755
--- a/__test__/index.spec.ts
+++ b/__test__/index.spec.ts
@@ -1,4 +1,4 @@
-import { PathLike, promises as fs, readdirSync, statSync } from 'fs'
+import { promises as fs } from 'fs'
 import { join } from 'path'
 
 import test from 'ava'
@@ -270,7 +270,7 @@ test('should be load custom fontDirs(no defaultFontFamily option)', (t) => {
   t.is(originPixels.join(',').match(/0,0,255/g)?.length, 1726)
 })
 
-test.only('The defaultFontFamily is not found in the OS and needs to be fallback', async (t) => {
+test('The defaultFontFamily is not found in the OS and needs to be fallback', (t) => {
   const svg = `
 <svg xmlns="http://www.w3.org/2000/svg" width="300" height="200" viewBox="0 0 300 200">
   <text fill="blue" font-family="" font-size="100">
@@ -278,46 +278,10 @@ test.only('The defaultFontFamily is not found in the OS and needs to be fallback
   </text>
 </svg>
   `
-
-  async function checkFileExists(filepath: PathLike) {
-    try {
-      await fs.access(filepath, fs.constants.F_OK)
-      return true
-    } catch (error) {
-      return false
-    }
-  }
-
-  function find_files(directoryPath: PathLike) {
-    // 获取目录下的所有文件和子目录
-    const items = readdirSync(directoryPath)
-
-    // 遍历每个文件或子目录
-    items.forEach((item) => {
-      const itemPath = require('path').join(directoryPath, item)
-      const stats = statSync(itemPath)
-
-      if (stats.isFile()) {
-        // 处理文件
-        console.info('文件:', itemPath)
-      } else if (stats.isDirectory()) {
-        // 处理子目录,并递归遍历
-        find_files(itemPath)
-      }
-    })
-  }
-
-  const fontPath = require('path').join('/usr/share/fonts')
-  const isExists = await checkFileExists(fontPath)
-  console.info(`Node.js 开始读取字体目录 ${fontPath}`, isExists)
-  if (isExists) {
-    find_files(fontPath)
-  }
-
   const resvg = new Resvg(svg, {
     font: {
       loadSystemFonts: true,
-      // fontDirs: ['/usr/share/fonts/'], // 防止在 CI 的 Docker 环境找不到字体
+      fontDirs: ['/usr/share/fonts/'], // 防止在 CI 的 Docker 环境找不到字体
       defaultFontFamily: 'this-is-a-non-existent-font-family',
     },
     logLevel: 'debug',
@@ -326,12 +290,11 @@ test.only('The defaultFontFamily is not found in the OS and needs to be fallback
   const originPixels = pngData.pixels.toJSON().data
   // Find the number of blue `rgb(0,255,255)`pixels
   const matchPixels = originPixels.join(',').match(/0,0,255/g)
-  console.info('✅ matchPixels length =', matchPixels?.length)
   t.true(matchPixels !== null) // If the font is not matched, there are no blue pixels.
   t.true((matchPixels?.length ?? 0) > 1500)
 })
 
-test('Test defaultFontFamily', async (t) => {
+test('Test defaultFontFamily', (t) => {
   const svg = `
 <svg xmlns="http://www.w3.org/2000/svg" width="300" height="200" viewBox="0 0 300 200">
   <text fill="blue" font-family="" font-size="100">
@@ -339,36 +302,11 @@ test('Test defaultFontFamily', async (t) => {
   </text>
 </svg>
   `
-
-  async function checkFileExists(filepath: PathLike) {
-    try {
-      await fs.access(filepath, fs.constants.F_OK)
-      return true
-    } catch (error) {
-      return false
-    }
-  }
-  const isExists = await checkFileExists('/usr/share/fonts')
-  console.info(`Node.js 开始读取字体目录 /usr/share/fonts`, isExists)
-  if (isExists) {
-    readdirSync('/usr/share/fonts').forEach((file) => {
-      console.info(`获取到文件 ${file}`)
-    })
-  }
-
-  const isExists2 = await checkFileExists('/usr/local/share/fonts')
-  console.info(`字体目录 /usr/local/share/fonts`, isExists2)
-  if (isExists2) {
-    readdirSync('/usr/local/share/fonts').forEach((file) => {
-      console.info(`获取到文件 ${file}`)
-    })
-  }
-
   const resvg = new Resvg(svg, {
     font: {
       loadSystemFonts: false,
       fontDirs: ['./example'],
-      defaultFontFamily: 'Source Han Serif CN Light', // 指定中文字体,期望自动 fallback 到 英文的 Pacifico.
+      defaultFontFamily: 'Source Han Serif CN Light', // 指定中文字体,期望自动 fallback 到英文 字体 Pacifico.
     },
     logLevel: 'debug',
   })
@@ -376,7 +314,6 @@ test('Test defaultFontFamily', async (t) => {
   const originPixels = pngData.pixels.toJSON().data
   // Find the number of blue `rgb(0,255,255)`pixels
   const matchPixels = originPixels.join(',').match(/0,0,255/g)
-  console.info('✅ matchPixels length =', matchPixels?.length)
   t.true(matchPixels !== null) // If the font is not matched, there are no blue pixels.
   t.true((matchPixels?.length ?? 0) > 1500)
 })
@@ -406,7 +343,7 @@ test('Async rendering', async (t) => {
 const MaybeTest = typeof AbortController !== 'undefined' ? test : test.skip
 
 MaybeTest('should be able to abort queued async rendering', async (t) => {
-  // fill the task queue
+  // Fill the task queue
   for (const _ of Array.from({ length: 100 })) {
     process.nextTick(() => {})
   }
diff --git a/example/text.js b/example/text.js
index cf185e92..d407627a 100644
--- a/example/text.js
+++ b/example/text.js
@@ -26,9 +26,6 @@ async function main() {
       loadSystemFonts: false, // It will be faster to disable loading system fonts.
       // fontFiles: ['./__test__/Pacifico-Regular.ttf'],
       fontDirs: ['./example'],
-      // defaultFontFamily: 'Source Han Serif CN Light',
-      // defaultFontFamily: 'Nabla',
-      defaultFontFamily: 'this-is-a-non-existent-font-family',
     },
     logLevel: 'debug', // Default Value: error
   })
diff --git a/src/fonts.rs b/src/fonts.rs
index af038f4d..3200bcd3 100644
--- a/src/fonts.rs
+++ b/src/fonts.rs
@@ -73,46 +73,35 @@ pub fn load_wasm_fonts(
 
 #[cfg(not(target_arch = "wasm32"))]
 fn set_font_families(font_options: &JsFontOptions, fontdb: &mut Database) {
-    let mut default_font_family = font_options.default_font_family.clone();
-    // debug font list
-    for face in fontdb.faces() {
-        let family = face
-            .families
-            .iter()
-            .find(|f| f.1 == Language::English_UnitedStates)
-            .unwrap_or(&face.families[0]);
-
-        debug!("font_id = {}, family_name = {}", face.id, family.0);
-    }
+    let mut default_font_family = font_options.default_font_family.clone().trim().to_string();
+    // Debug: get font lists
+    // for face in fontdb.faces() {
+    //     let family = face
+    //         .families
+    //         .iter()
+    //         .find(|f| f.1 == Language::English_UnitedStates)
+    //         .unwrap_or(&face.families[0]);
+    //     debug!("font_id = {}, family_name = {}", face.id, family.0);
+    // }
 
-    let trimmed_default_font_family = default_font_family.trim();
     let fontdb_found_default_font_family = fontdb
         .faces()
         .iter()
         .find_map(|it| {
             it.families
                 .iter()
-                .find(|f| f.0 == trimmed_default_font_family)
+                .find(|f| f.0 == default_font_family)
                 .map(|f| f.0.clone())
         })
         .unwrap_or_default();
 
-    debug!(
-        "fontdb 找到的默认字体名称 = {}",
-        fontdb_found_default_font_family
-    );
-
     // 当 default_font_family 为空或系统无该字体时,尝试把 fontdb
     // 中字体列表的第一个字体设置为默认的字体。
-    if trimmed_default_font_family.is_empty() || fontdb_found_default_font_family.is_empty() {
+    if default_font_family.is_empty() || fontdb_found_default_font_family.is_empty() {
         // font_files 或 font_dirs 选项不为空时, 从已加载的字体列表中获取第一个字体的 font family。
         if !font_options.font_files.is_empty() || !font_options.font_dirs.is_empty() {
             default_font_family = get_first_font_family_or_fallback(fontdb);
         }
-        // else {
-        //     debug!("其他情况 = {}", default_font_family);
-        //     default_font_family = fallback_font_family;
-        // }
     }
 
     fontdb.set_serif_family(&default_font_family);
@@ -121,7 +110,7 @@ fn set_font_families(font_options: &JsFontOptions, fontdb: &mut Database) {
     fontdb.set_fantasy_family(&default_font_family);
     fontdb.set_monospace_family(&default_font_family);
 
-    debug!("📝 defaultFontFamily = {}", default_font_family);
+    debug!("📝 default_font_family = '{}'", default_font_family);
 
     #[cfg(not(target_arch = "wasm32"))]
     find_and_debug_font_path(fontdb, default_font_family.as_str())
@@ -224,14 +213,10 @@ fn get_first_font_family_or_fallback(fontdb: &mut Database) -> String {
                 .unwrap_or(&face.families[0]);
 
             default_font_family = base_family.0.clone();
-            debug!(
-                "📝 get_first_font_family 找到字体了 = {}",
-                default_font_family
-            );
         }
         None => {
             debug!(
-                "📝 get_first_font_family 没找到字体 = {}",
+                "📝 get_first_font_family not found = '{}'",
                 default_font_family
             );
         }