[9.x] Add some tests to testIntegerMethod and testFloatMethod (HttpRequestTest.php) (#46080)

* Add some tests to testIntegerMethod and testFloatMethod (HttpRequestTest.php)

* delete unnesessary tests

* add tests

Author: orange-alien

tests/Http/HttpRequestTest.php

@@ -607,6 +607,7 @@ public function testIntegerMethod()
             'nan' => 'nan',
             'mixed' => '1ab',
             'underscore_notation' => '2_000',
+            'null' => null,
         ]);
         $this->assertSame(123, $request->integer('int'));
         $this->assertSame(456, $request->integer('raw_int'));
@@ -616,6 +617,8 @@ public function testIntegerMethod()
         $this->assertSame(1, $request->integer('mixed'));
         $this->assertSame(2, $request->integer('underscore_notation'));
         $this->assertSame(123456, $request->integer('unknown_key', 123456));
+        $this->assertSame(0, $request->integer('null'));
+        $this->assertSame(0, $request->integer('null', 123456));
     }
 
     public function testFloatMethod()
@@ -629,6 +632,7 @@ public function testFloatMethod()
             'nan' => 'nan',
             'mixed' => '1.ab',
             'scientific_notation' => '1e3',
+            'null' => null,
         ]);
         $this->assertSame(1.23, $request->float('float'));
         $this->assertSame(45.6, $request->float('raw_float'));
@@ -639,6 +643,8 @@ public function testFloatMethod()
         $this->assertSame(1.0, $request->float('mixed'));
         $this->assertSame(1e3, $request->float('scientific_notation'));
         $this->assertSame(123.456, $request->float('unknown_key', 123.456));
+        $this->assertSame(0.0, $request->float('null'));
+        $this->assertSame(0.0, $request->float('null', 123.456));
     }
 
     public function testCollectMethod()