diff --git a/build.gradle b/build.gradle
index 0ce8188..d31576a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,7 +20,7 @@ dependencies {
     compile group: 'org.json', name: 'json', version: '20160212'
 
     // http://mvnrepository.com/artifact/org.skyscreamer/jsonassert
-    compile group: 'org.skyscreamer', name: 'jsonassert', version: '1.2.3'
+    testCompile group: 'org.skyscreamer', name: 'jsonassert', version: '1.2.3'
 
     testCompile group: 'junit', name: 'junit', version: '4.11'
 }
diff --git a/src/main/java/moe/imvery/utils/xlsx2json/ExcelParserMain.java b/src/main/java/moe/imvery/utils/xlsx2json/ExcelParserMain.java
index 928a2e1..d779157 100644
--- a/src/main/java/moe/imvery/utils/xlsx2json/ExcelParserMain.java
+++ b/src/main/java/moe/imvery/utils/xlsx2json/ExcelParserMain.java
@@ -3,10 +3,7 @@
 import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
 import org.apache.poi.ss.usermodel.*;
 import org.json.JSONArray;
-import org.json.JSONException;
 import org.json.JSONObject;
-import org.skyscreamer.jsonassert.JSONAssert;
-import org.skyscreamer.jsonassert.JSONParser;
 
 import java.io.*;
 import java.nio.file.Files;
@@ -116,32 +113,6 @@ public static void parseExcelFile(String targetName, String[] sheetList, boolean
         }
     }
 
-    /**
-     * Validate two json file.  If it isn't it throws an {@link AssertionError}.
-     * @param expectedFileName Expected JSON file
-     * @param targetFileName File to compare
-     * @param strict Enables strict checking
-     * @throws JSONException
-     */
-    public static void validateJson(String expectedFileName, String targetFileName, boolean strict) {
-        try {
-            System.out.println("Checking " + targetFileName + " ... ");
-            Path path = Paths.get(targetFileName);
-            BufferedReader reader = Files.newBufferedReader(path);
-            String jsonText = reader.readLine();
-
-            path = Paths.get(expectedFileName);
-            reader = Files.newBufferedReader(path);
-            String expected = reader.readLine();
-
-            JSONAssert.assertEquals(expected, jsonText, false);
-
-            System.out.println("Passed.");
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
-
     public static void main(String[] args) throws Exception{
         String[] configs = args;
         if (args.length == 1) {
diff --git a/src/test/java/moe/imvery/utils/xlsx2json/ExcelParserMainTest.java b/src/test/java/moe/imvery/utils/xlsx2json/ExcelParserMainTest.java
index 6e8aeb8..a0407ff 100644
--- a/src/test/java/moe/imvery/utils/xlsx2json/ExcelParserMainTest.java
+++ b/src/test/java/moe/imvery/utils/xlsx2json/ExcelParserMainTest.java
@@ -1,9 +1,11 @@
 package moe.imvery.utils.xlsx2json;
 
+import org.json.JSONException;
 import org.junit.Test;
 import org.skyscreamer.jsonassert.JSONAssert;
 
 import java.io.BufferedReader;
+import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -15,32 +17,58 @@
  */
 public class ExcelParserMainTest {
 
+    /**
+     * Validate two json file.  If it isn't it throws an {@link AssertionError}.
+     * @param expectedFileName Expected JSON file
+     * @param targetFileName File to compare
+     * @param strict Enables strict checking
+     * @throws JSONException
+     */
+    public static void validateJson(String expectedFileName, String targetFileName, boolean strict) {
+        try {
+            System.out.println("Checking " + targetFileName + " ... ");
+            Path path = Paths.get(targetFileName);
+            BufferedReader reader = Files.newBufferedReader(path);
+            String jsonText = reader.readLine();
+
+            path = Paths.get(expectedFileName);
+            reader = Files.newBufferedReader(path);
+            String expected = reader.readLine();
+
+            JSONAssert.assertEquals(expected, jsonText, false);
+
+            System.out.println("Passed.");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
     @Test
     public void main() throws Exception {
         ExcelParserMain.main(new String[]{"testcases/test.xlsx", "map", "true"});
 
-        ExcelParserMain.validateJson("testcases/test3.expected.json", "testcases/test.json", false);
+        validateJson("testcases/test3.expected.json", "testcases/test.json", false);
     }
 
     @Test
     public void mainMultisheets() throws Exception {
         ExcelParserMain.main(new String[]{"testcases/test.xlsx", "weaponStuffs skillStuffs essenceStuffs", "true"});
 
-        ExcelParserMain.validateJson("testcases/test4.expected.json", "testcases/test.json", false);
+        validateJson("testcases/test4.expected.json", "testcases/test.json", false);
     }
 
     @Test
     public void mainHideSheetName() throws Exception {
         ExcelParserMain.main(new String[]{"testcases/test.xlsx", "map", "false"});
 
-        ExcelParserMain.validateJson("testcases/test5.expected.json", "testcases/test.json", false);
+        validateJson("testcases/test5.expected.json", "testcases/test.json", false);
     }
 
     @Test
     public void mainMultiSheetsAndHideSheetName() throws Exception {
         ExcelParserMain.main(new String[]{"testcases/test.xlsx", "map monster", "false"});
 
-        ExcelParserMain.validateJson("testcases/test6.expected.json", "testcases/test.json", false);
+        validateJson("testcases/test6.expected.json", "testcases/test.json", false);
     }
 
     @Test(expected=IllegalArgumentException.class)