Add some unit test

V2rayNG/app/src/test/java/com/v2ray/ang/HttpUtilTest.kt

@@ -0,0 +1,41 @@
+package com.v2ray.ang
+
+import com.v2ray.ang.util.HttpUtil
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class HttpUtilTest {
+
+    @Test
+    fun testIdnToASCII() {
+        // Regular URL remains unchanged
+        val regularUrl = "https://example.com/path"
+        assertEquals(regularUrl, HttpUtil.idnToASCII(regularUrl))
+
+        // Non-ASCII URL converts to ASCII (Punycode)
+        val nonAsciiUrl = "https://例子.测试/path"
+        val expectedNonAscii = "https://xn--fsqu00a.xn--0zwm56d/path"
+        assertEquals(expectedNonAscii, HttpUtil.idnToASCII(nonAsciiUrl))
+
+        // Mixed URL only converts the host part
+        val mixedUrl = "https://例子.com/测试"
+        val expectedMixed = "https://xn--fsqu00a.com/测试"
+        assertEquals(expectedMixed, HttpUtil.idnToASCII(mixedUrl))
+
+        // URL with Basic Authentication using regular domain
+        val basicAuthUrl = "https://user:password@example.com/path"
+        assertEquals(basicAuthUrl, HttpUtil.idnToASCII(basicAuthUrl))
+
+        // URL with Basic Authentication using non-ASCII domain
+        val basicAuthNonAscii = "https://user:password@例子.测试/path"
+        val expectedBasicAuthNonAscii = "https://user:password@xn--fsqu00a.xn--0zwm56d/path"
+        assertEquals(expectedBasicAuthNonAscii, HttpUtil.idnToASCII(basicAuthNonAscii))
+
+        // URL with non-ASCII username and password
+        val nonAsciiAuth = "https://用户:密码@example.com/path"
+        // Basic auth credentials should remain unchanged as they're percent-encoded separately
+        assertEquals(nonAsciiAuth, HttpUtil.idnToASCII(nonAsciiAuth))
+    }
+
+
+}

V2rayNG/app/src/test/java/com/v2ray/ang/UtilsTest.kt

@@ -11,7 +11,7 @@ import org.junit.Test
  *
  * See [testing documentation](http://d.android.com/tools/testing).
  */
-class AngUnitTest {
+class UtilsTest {
 
     @Test
     fun test_parseInt() {