diff --git a/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php b/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
index 3a07501..a829184 100644
--- a/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
+++ b/core/tests/Drupal/FunctionalTests/BrowserTestBaseTest.php
@@ -138,6 +138,58 @@ public function testPipeCharInLocator() {
   }
 
   /**
+   * Tests linkExistsExact() functionality.
+   *
+   * @see \Drupal\Tests\WebAssert::linkExistsExact()
+   */
+  public function testLinkExistsExact() {
+    $this->drupalGet('test-pipe-char');
+    $this->assertSession()->linkExistsExact('foo|bar|baz');
+  }
+
+  /**
+   * Tests linkExistsExact() functionality fail.
+   *
+   * @see \Drupal\Tests\WebAssert::linkExistsExact()
+   */
+  public function testLinkNonExistsExact() {
+    $this->drupalGet('test-pipe-char');
+    try {
+      $this->assertSession()->linkExistsExact('foo|bar');
+      $this->fail('The exactly "foor|bar" label link was found.');
+    }
+    catch (ExpectationException $e) {
+      $this->pass('testLinkNonExistsExact correctly failed. The exactly "foor|bar" label link was not found.');
+    }
+  }
+
+  /**
+   * Tests linkNotExistsExact() functionality.
+   *
+   * @see \Drupal\Tests\WebAssert::linkNotExistsExact()
+   */
+  public function testNotLinkExistsExact() {
+    $this->drupalGet('test-pipe-char');
+    $this->assertSession()->linkNotExistsExact('foo|bar');
+  }
+
+  /**
+   * Tests linkNotExistsExact() functionality fail.
+   *
+   * @see \Drupal\Tests\WebAssert::linkNotExistsExact()
+   */
+  public function testNotLinkNonExistsExact() {
+    $this->drupalGet('test-pipe-char');
+    try {
+      $this->assertSession()->linkNotExistsExact('foo|bar|baz');
+      $this->fail('The exactly "foo|bar|baz" label link was not found.');
+    }
+    catch (ExpectationException $e) {
+      $this->pass('testNotLinkNonExistsExact correctly failed. The exactly "foo|bar|baz" label link was found.');
+    }
+  }
+
+  /**
    * Tests legacy text asserts.
    */
   public function testLegacyTextAsserts() {