diff --git a/UnitTestFiles/Test/SQL_Injection_Test.php b/UnitTestFiles/Test/SQL_Injection_Test.php
new file mode 100644
index 0000000..ffbf3a3
--- /dev/null
+++ b/UnitTestFiles/Test/SQL_Injection_Test.php
@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace UnitTestFiles\Test;
+use PHPUnit\Framework\TestCase;
+
+class SQL_Injection_Test extends TestCase {
+    
+    /**
+    * @dataProvider dataProviderForTest
+    */
+    public function testException($a) {
+        $this->expectException(\Exception::class);
+        \tts\safer_sql::get_safer_sql_text($a);
+    }
+
+    /**
+    * @dataProvider safeDataProviderForTest
+    */
+    public function testSafeSQL($a) {
+        $this->expectNotToPerformAssertions();
+        \tts\safer_sql::get_safer_sql_text($a);
+    }
+    
+    public function dataProviderForTest() {
+        return [
+          ["admin: {\$ne : ''}"], 
+          ["' or 1=1-- -"],
+          ["Drop database me;"],
+          ["' \|\| DELETE 1=1; --"]
+        ];
+    }
+    
+    public function safeDataProviderForTest() {
+        return [
+          ["John walks (down the road)."], 
+          ["Hey, Boy - Good Work!"],
+          ["I think; I'm good!"]
+        ];
+    }
+
+    
+}
\ No newline at end of file