From 2c994d3a53767679f7db12ac131d97dbf3d4d13c Mon Sep 17 00:00:00 2001
From: "SUN-ASTERISK\\nguyen.h.p.nam"
 <nguyen.hoang.phuong.nam@sun-asterisl.com>
Date: Thu, 16 Jul 2020 14:04:41 +0700
Subject: [PATCH] Add C0 unit test for UsernameValidation

---
 tests/C0/UsernameValidationTest.php | 60 ++++++++++++++++++++++++++++-
 1 file changed, 59 insertions(+), 1 deletion(-)

diff --git a/tests/C0/UsernameValidationTest.php b/tests/C0/UsernameValidationTest.php
index d78a816..e05aee4 100644
--- a/tests/C0/UsernameValidationTest.php
+++ b/tests/C0/UsernameValidationTest.php
@@ -2,9 +2,67 @@
 
 namespace Tests\C0;
 
+use App\UsernameValidation;
 use PHPUnit\Framework\TestCase;
 
 class UsernameValidationTest extends TestCase
 {
-    // TODO: write 6 tests to coverage 100% code
+    function generateRandomString($length = 10) {
+        return substr(str_shuffle(str_repeat($x = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', ceil($length/strlen($x)))), 1, $length);
+    }
+
+    public function test_give_minimum_username_then_false_and_show_message()
+    {
+        $usernameValidation = new UsernameValidation();
+
+        $this->assertFalse($usernameValidation->isValid(''));
+        $this->assertEquals('Minimum length is ' . UsernameValidation::MIN_LENGTH, $usernameValidation->getMessage());
+    }
+
+    public function test_give_maximum_username_then_false_and_show_message()
+    {
+        $usernameValidation = new UsernameValidation();
+        $username = $this->generateRandomString(UsernameValidation::MAX_LENGTH + 1); //get string always greater then MAX_LENGTH
+
+        $this->assertFalse($usernameValidation->isValid($username));
+        $this->assertEquals('Maximum length is ' . UsernameValidation::MAX_LENGTH, $usernameValidation->getMessage());
+    }
+
+    public function test_username_have_dash_at_begin_or_end_then_false_and_show_message()
+    {
+        $usernameValidation = new UsernameValidation();
+        $username = $this->generateRandomString(floor(UsernameValidation::MAX_LENGTH / 2)); //get string allow in length
+        $username .= '-'; //add dash to test valid
+
+        $this->assertFalse($usernameValidation->isValid($username));
+        $this->assertEquals('- cannot appear at begin or end of name', $usernameValidation->getMessage());
+    }
+
+    public function test_username_have_multiple_dash_at_same_place_then_false_and_show_message()
+    {
+        $usernameValidation = new UsernameValidation();
+        $username = $this->generateRandomString(floor(UsernameValidation::MAX_LENGTH / 2)); //get string allow in length
+        $username .= '--'; //add multiple dash to test valid
+
+        $this->assertFalse($usernameValidation->isValid($username));
+        $this->assertEquals('Only single - is allowed', $usernameValidation->getMessage());
+    }
+
+    public function test_username_have_character_not_allow_then_false_and_show_message()
+    {
+        $usernameValidation = new UsernameValidation();
+        $username = $this->generateRandomString(floor(UsernameValidation::MAX_LENGTH / 2)); //get string allow in length
+        $username .= '@'; //add character not allow test valid
+
+        $this->assertFalse($usernameValidation->isValid($username));
+        $this->assertEquals('Invalid character. Use only letters, digits and -', $usernameValidation->getMessage());
+    }
+
+    public function test_username_id_valid()
+    {
+        $usernameValidation = new UsernameValidation();
+        $username = $this->generateRandomString(floor(UsernameValidation::MAX_LENGTH / 2)); //get string allow in length
+
+        $this->assertTrue($usernameValidation->isValid($username));
+    }
 }