Tests to the "containsCaseless" method from class Str

src/Str.php

@@ -23,6 +23,11 @@ class Str
         return false;
     }
 
+    /**
+     * Remove accents or special characters from a string.
+     * @param  string $string
+     * @return string
+     */
     public static function removeAccent($string)
     {
         $replace = [

tests/StrTest.php

@@ -7,6 +7,26 @@ use LaravelProfane\Str;
 
 class StrTest extends TestCase
 {
+    public function test_string_contains_a_piece_insensitive_match_from_text()
+    {
+        $this->assertTrue(Str::containsCaseless('Fuck! This class is so bad!', 'ass'));
+    }
+
+    public function test_text_contains_insensitive_match_from_array()
+    {
+        $this->assertTrue(Str::containsCaseless('Fuck! This class is so bad!', ['fuk', 'fuck']));
+    }
+
+    public function test_text_contains_insensitive_match_from_string()
+    {
+        $this->assertTrue(Str::containsCaseless('Fuck! This class is so bad!', 'fUcK'));
+    }
+
+    public function test_text_contains_the_same_insensitive_match_from_string()
+    {
+        $this->assertTrue(Str::containsCaseless('Fuck! This class is so bad!', 'Fuck'));
+    }
+
     public function test_remove_accents_in_spanish_text()
     {
         $this->assertEquals('cojon', Str::removeAccent('cojón'));