Fix session value is missing assertion (laravel#57134)

Author: barclaymichael

src/Illuminate/Testing/TestResponse.php

@@ -1711,9 +1711,9 @@ public function assertSessionMissing($key, $value = null)
                 "Session has unexpected key [{$key}]."
             );
         } elseif ($value instanceof Closure) {
-            PHPUnit::withResponse($this)->assertTrue($value($this->session()->get($key)));
+            PHPUnit::withResponse($this)->assertFalse($value($this->session()->get($key)));
         } else {
-            PHPUnit::withResponse($this)->assertEquals($value, $this->session()->get($key));
+            PHPUnit::withResponse($this)->assertNotEquals($value, $this->session()->get($key));
         }
 
         return $this;

tests/Testing/TestResponseTest.php

@@ -2808,17 +2808,61 @@ public function testAssertSessionMissing(): void
         $response->assertSessionMissing('foo');
     }
 
-    #[TestWith(['foo', 'badvalue'])]
-    #[TestWith(['foo', null])]
-    #[TestWith([['foo', 'bar'], null])]
-    public function testAssertSessionMissingValue(array|string $key, mixed $value): void
+    #[TestWith(['foo', 'goodvalue'])]
+    #[TestWith([['foo', 'bar'], 'goodvalue'])]
+    public function testAssertSessionMissingValueIsPresent(array|string $key, mixed $value): void
+    {
+        $this->expectException(AssertionFailedError::class);
+
+        app()->instance('session.store', $store = new Store('test-session', new ArraySessionHandler(1)));
+
+        $store->put('foo', 'goodvalue');
+
+        $response = TestResponse::fromBaseResponse(new Response());
+        $response->assertSessionMissing($key, $value);
+    }
+
+    public function testAssertSessionMissingValueIsPresentClosure(): void
     {
         $this->expectException(AssertionFailedError::class);
 
         app()->instance('session.store', $store = new Store('test-session', new ArraySessionHandler(1)));
 
         $store->put('foo', 'goodvalue');
 
+        $key = 'foo';
+
+        $value = function ($value) {
+            return $value === 'goodvalue';
+        };
+
+        $response = TestResponse::fromBaseResponse(new Response());
+        $response->assertSessionMissing($key, $value);
+    }
+
+    #[TestWith(['foo', 'badvalue'])]
+    public function testAssertSessionMissingValueIsMissing(array|string $key, mixed $value): void
+    {
+        app()->instance('session.store', $store = new Store('test-session', new ArraySessionHandler(1)));
+
+        $store->put('foo', 'goodvalue');
+
+        $response = TestResponse::fromBaseResponse(new Response());
+        $response->assertSessionMissing($key, $value);
+    }
+
+    public function testAssertSessionMissingValueIsMissingClosure(): void
+    {
+        app()->instance('session.store', $store = new Store('test-session', new ArraySessionHandler(1)));
+
+        $store->put('foo', 'goodvalue');
+
+        $key = 'foo';
+
+        $value = function ($value) {
+            return $value === 'badvalue';
+        };
+
         $response = TestResponse::fromBaseResponse(new Response());
         $response->assertSessionMissing($key, $value);
     }