Add assertElementsPresent/Missing() methods

src/Concerns/Asserts/AssertsElement.php

@@ -112,7 +112,7 @@ public function assertDoesntMatchSelector(string $selector, ?string $message = n
 
     /*
     |--------------------------------------------------------------------------
-    | Assert Count
+    | Assert Elements Count
     |--------------------------------------------------------------------------
     */
 
@@ -207,6 +207,36 @@ public function assertElementsCountLessThanOrEqual(string $selector, int $count,
         return $this;
     }
 
+    /*
+    |--------------------------------------------------------------------------
+    | Assert Elements Present/Missing
+    |--------------------------------------------------------------------------
+    */
+
+    /** Assert the element contains one or more elements matching the given selector. */
+    public function assertElementsPresent(string $selector, ?string $message = null): static
+    {
+        $this->assertElementsCountGreaterThan($selector, 0, $message ?? sprintf(
+            "The element [%s] doesn't have one or more elements matching the given selector [%s].",
+            $this->identifier(),
+            $selector,
+        ));
+
+        return $this;
+    }
+
+    /** Assert the element contains no elements matching the given selector. */
+    public function assertElementsMissing(string $selector, ?string $message = null): static
+    {
+        $this->assertElementsCount($selector, 0, $message ?? sprintf(
+            'The element [%s] has one or more elements matching the given selector [%s].',
+            $this->identifier(),
+            $selector,
+        ));
+
+        return $this;
+    }
+
     /*
     |--------------------------------------------------------------------------
     | Assert Text

tests/Integration/AssertableHtmlTest.php

@@ -41,13 +41,6 @@ public function test_assertable_html(): void
                     <li id="baz">Baz</li>
                 </ul>
 
-                <!-- Form -->
-                <form method="get" action="/foo/bar" enctype="multipart/form-data">
-                    <label>Name <input type="text" name="name" value="Foo Bar"></label>
-                    <label>Age <input type="number" name="age" value="42"></label>
-                    <button type="submit">Save</button>
-                </form>
-
                 <!-- Custom Element -->
                 <my-web-component>I am a web component.</my-web-component>
             </body>
@@ -62,6 +55,8 @@ public function test_assertable_html(): void
 
         $html->one('ul', function (AssertableElement $el): void {
             $el->assertElementsCount('li', 3);
+            $el->assertElementsPresent('li');
+            $el->assertElementsMissing('foo');
 
             $el->one('li:nth-child(1)', fn (AssertableElement $el) => $el->assertAttributeEquals('id', 'foo'));
             $el->one('li:nth-child(2)', fn (AssertableElement $el) => $el->assertAttributeEquals('id', 'bar'));

tests/Unit/Concerns/Asserts/AssertsElementTest.php

@@ -114,11 +114,11 @@ public function test_assert_doesnt_match_selector_fails(): void
 
     /*
     |--------------------------------------------------------------------------
-    | Assert Count
+    | Assert Elements Count
     |--------------------------------------------------------------------------
     */
 
-    public function test_assert_count_comparisons_pass(): void
+    public function test_elements_assert_count_comparisons_pass(): void
     {
         $assertable = $this->getAssertableElement(<<<'HTML'
         <ul>
@@ -148,8 +148,8 @@ public function test_assert_count_comparisons_pass(): void
         $assertable->assertNumberOfElements('li', '<=', 4);
     }
 
-    #[DataProvider('assert_count_comparisons_fail_data_provider')]
-    public function test_assert_count_comparisons_fail(string $selector, string $comparison, int $expected, string $message): void
+    #[DataProvider('assert_elements_count_comparisons_fail_data_provider')]
+    public function test_elements_assert_count_comparisons_fail(string $selector, string $comparison, int $expected, string $message): void
     {
         $this->expectException(AssertionFailedError::class);
         $this->expectExceptionMessage($message);
@@ -173,7 +173,7 @@ public function test_assert_count_comparisons_fail(string $selector, string $com
         };
     }
 
-    public static function assert_count_comparisons_fail_data_provider(): iterable
+    public static function assert_elements_count_comparisons_fail_data_provider(): iterable
     {
         yield 'equals' => [
             'li', '=', 1, "The element [ul] doesn't have exactly [1] elements matching the given selector [li].",
@@ -200,6 +200,37 @@ public static function assert_count_comparisons_fail_data_provider(): iterable
         ];
     }
 
+    /*
+    |--------------------------------------------------------------------------
+    | Assert Elements Present/Missing
+    |--------------------------------------------------------------------------
+    */
+
+    public function test_assert_elements_present_missing_pass(): void
+    {
+        $this->getAssertableElement('<ul><li>Foo</li></ul>')
+            ->assertElementsPresent('li')
+            ->assertElementsMissing('p');
+    }
+
+    public function test_assert_elements_present_fails(): void
+    {
+        $this->expectException(AssertionFailedError::class);
+        $this->expectExceptionMessage("The element [ul] doesn't have one or more elements matching the given selector [p].");
+
+        $this->getAssertableElement('<ul><li>Foo</li></ul>')
+            ->assertElementsPresent('p');
+    }
+
+    public function test_assert_elements_missing_fails(): void
+    {
+        $this->expectException(AssertionFailedError::class);
+        $this->expectExceptionMessage('The element [ul] has one or more elements matching the given selector [li].');
+
+        $this->getAssertableElement('<ul><li>Foo</li></ul>')
+            ->assertElementsMissing('li');
+    }
+
     /*
     |--------------------------------------------------------------------------
     | Assert Text