Added negations for tokens

src/Negate.php

@@ -23,6 +23,27 @@ public function letter(): FluentBuilder
         return $this->builder;
     }
 
+    public function letters(): FluentBuilder
+    {
+        $this->builder->pushToPattern('[^a-zA-Z]+');
+
+        return $this->builder;
+    }
+
+    public function lowerLetter(): FluentBuilder
+    {
+        $this->builder->pushToPattern('[^a-z]');
+
+        return $this->builder;
+    }
+
+    public function lowerLetters(): FluentBuilder
+    {
+        $this->builder->pushToPattern('[^a-z]+');
+
+        return $this->builder;
+    }
+
     /**
      * @param  string  $method
      * @param  array<int|string, mixed>  $arguments
@@ -32,7 +53,7 @@ public function __call(string $method, array $arguments): FluentBuilder
     {
         $this->builder->pushToPattern('[^');
 
-        $result = $this->builder->{$method}($arguments);
+        $result = $this->builder->{$method}(...$arguments);
 
         if ($result instanceof FluentBuilder) {
             $this->builder->pushToPattern(']');

tests/Unit/NegateTest.php

@@ -2,24 +2,52 @@
 
 declare(strict_types=1);
 
+use Rudashi\FluentBuilder;
 use Rudashi\Negate;
 
 it('can create negation')
     ->expect(negation())
     ->toBeInstanceOf(Negate::class);
 
+it('can call builder methods')
+    ->expect(negation()->letter())
+    ->toBeInstanceOf(FluentBuilder::class);
+
 it('thrown an exception if the property has no method assigned', function () {
     expect(negation()->get());
 })->throws(
     exception: LogicException::class,
     exceptionMessage: 'Method "get" is not extendable by "Negation".'
 );
 
-it('can call builder methods')
+/**
+ * Higher-Order methods
+ */
+it('returns the negation of exactly')
+    ->expect(negation()->exactly('foo bar')->get())
+    ->toBeString()
+    ->toBe('/[^foo bar]/');
+
+it('returns the negation of letter')
     ->expect(negation()->letter()->get())
     ->toBeString()
     ->toBe('/[^a-zA-Z]/');
 
+it('returns the negation of letters')
+    ->expect(negation()->letters()->get())
+    ->toBeString()
+    ->toBe('/[^a-zA-Z]+/');
+
+it('returns the negation of lowerLetter')
+    ->expect(negation()->lowerLetter()->get())
+    ->toBeString()
+    ->toBe('/[^a-z]/');
+
+it('returns the negation of lowerLetters')
+    ->expect(negation()->lowerLetters()->get())
+    ->toBeString()
+    ->toBe('/[^a-z]+/');
+
 it('returns the negation of whitespaces')
     ->expect(negation()->whitespace()->get())
     ->toBeString()