diff --git a/.idea/codeception.xml b/.idea/codeception.xml
new file mode 100644
index 0000000..9da3754
--- /dev/null
+++ b/.idea/codeception.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Codeception">
+    <option name="configurations">
+      <list>
+        <Configuration>
+          <option name="path" value="$PROJECT_DIR$/tests" />
+        </Configuration>
+        <Configuration>
+          <option name="path" value="$PROJECT_DIR$/tests" />
+        </Configuration>
+      </list>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/git_toolbox_prj.xml b/.idea/git_toolbox_prj.xml
new file mode 100644
index 0000000..02b915b
--- /dev/null
+++ b/.idea/git_toolbox_prj.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GitToolBoxProjectSettings">
+    <option name="commitMessageIssueKeyValidationOverride">
+      <BoolValueOverride>
+        <option name="enabled" value="true" />
+      </BoolValueOverride>
+    </option>
+    <option name="commitMessageValidationEnabledOverride">
+      <BoolValueOverride>
+        <option name="enabled" value="true" />
+      </BoolValueOverride>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/mime-type-sniffer.iml b/.idea/mime-type-sniffer.iml
index 4980e63..8ceebfe 100644
--- a/.idea/mime-type-sniffer.iml
+++ b/.idea/mime-type-sniffer.iml
@@ -3,8 +3,9 @@
   <component name="NewModuleRootManager">
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/spec" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" packagePrefix="MimeTypeSniffer\" />
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" packagePrefix="Aix\MimeTypeSniffer\" />
       <sourceFolder url="file://$MODULE_DIR$/tests" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/vendor/composer" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
diff --git a/.idea/php.xml b/.idea/php.xml
index 6f95ace..6cbfab5 100644
--- a/.idea/php.xml
+++ b/.idea/php.xml
@@ -10,10 +10,20 @@
     <option name="highlightLevel" value="WARNING" />
     <option name="transferred" value="true" />
   </component>
+  <component name="PhpIncludePathManager">
+    <include_path>
+      <path value="$PROJECT_DIR$/vendor/composer" />
+    </include_path>
+  </component>
   <component name="PhpProjectSharedConfiguration" php_language_level="7.3" />
   <component name="PhpStanOptionsConfiguration">
     <option name="transferred" value="true" />
   </component>
+  <component name="PhpUnit">
+    <phpunit_settings>
+      <PhpUnitSettings custom_loader_path="$PROJECT_DIR$/vendor/autoload.php" />
+    </phpunit_settings>
+  </component>
   <component name="PsalmOptionsConfiguration">
     <option name="transferred" value="true" />
   </component>
diff --git a/.idea/phpspec.xml b/.idea/phpspec.xml
new file mode 100644
index 0000000..ec7e1d4
--- /dev/null
+++ b/.idea/phpspec.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PHPSpec">
+    <suites>
+      <PhpSpecSuiteConfiguration>
+        <option name="myPath" value="$PROJECT_DIR$" />
+      </PhpSpecSuiteConfiguration>
+      <PhpSpecSuiteConfiguration>
+        <option name="myPath" value="$PROJECT_DIR$" />
+      </PhpSpecSuiteConfiguration>
+    </suites>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/phpunit.xml b/.idea/phpunit.xml
new file mode 100644
index 0000000..4f8104c
--- /dev/null
+++ b/.idea/phpunit.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PHPUnit">
+    <option name="directories">
+      <list>
+        <option value="$PROJECT_DIR$/tests" />
+      </list>
+    </option>
+  </component>
+</project>
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 388f0d0..59d8cf7 100644
--- a/composer.json
+++ b/composer.json
@@ -1,24 +1,18 @@
 {
-  "name": "aix/mime-type-sniffer",
-  "description": "jsaix mime-type-sniffer",
-  "version": "1.0.0",
-  "type": "libs",
-  "license": "JSAIX LICENSE",
-  "authors": [
-    {
-      "name": "chenc",
-      "email": "1458513@qq.com"
-    }
-  ],
-  "require": {
-    "php": ">=7.3.0"
-  },
-  "autoload": {
-    "classmap": [
-      "src/"
+    "name": "aix/mime-type-sniffer",
+    "description": "mime sniffer",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "chenc",
+            "email": "1458513@qq.com"
+        }
     ],
-    "psr-4": {
-      "MimeTypeSniffer\\": "src/"
-    }
-  }
-}
\ No newline at end of file
+    "autoload": {
+        "psr-4": {
+            "Aix\\MimeTypeSniffer\\": "src/"
+        }
+    },
+    "require": {}
+}
diff --git a/src/MagicNumber.php b/src/MagicNumber.php
index 44f20c0..6b1877e 100644
--- a/src/MagicNumber.php
+++ b/src/MagicNumber.php
@@ -6,7 +6,7 @@
  * Time: 3:52 PM
  */
 
-namespace MimeTypeSniffer;
+namespace Aix\MimeTypeSniffer;
 
 class MagicNumber
 {
diff --git a/src/MimeTypeSniffer.php b/src/MimeTypeSniffer.php
index c9702bc..721b96d 100644
--- a/src/MimeTypeSniffer.php
+++ b/src/MimeTypeSniffer.php
@@ -6,7 +6,7 @@
  * Time: 3:54 PM
  */
 
-namespace MimeTypeSniffer;
+namespace Aix\MimeTypeSniffer;
 
 
 
diff --git a/src/OfficeDocType.php b/src/OfficeDocType.php
index dbae7a1..bacc3e9 100644
--- a/src/OfficeDocType.php
+++ b/src/OfficeDocType.php
@@ -6,7 +6,7 @@
  * Time: 3:53 PM
  */
 
-namespace MimeTypeSniffer;
+namespace Aix\MimeTypeSniffer;
 
 
 class OfficeDocType
diff --git a/src/OfficeExtensionType.php b/src/OfficeExtensionType.php
index 6c1b539..bc4b5a4 100644
--- a/src/OfficeExtensionType.php
+++ b/src/OfficeExtensionType.php
@@ -6,7 +6,7 @@
  * Time: 3:54 PM
  */
 
-namespace MimeTypeSniffer;
+namespace Aix\MimeTypeSniffer;
 
 
 class OfficeExtensionType