docs: fix incorrect sample code

Author: kenjis

user_guide_src/source/testing/response/025.php

@@ -1,6 +1,7 @@
 <?php
 
-// Checks that "Hello World" does NOT exist on the page
-$results->dontSee('Hello World');
-// Checks that "Hello World" does NOT exist within any h1 tag
-$results->dontSee('Hello World', 'h1');
+// Verify that "Hello World" does NOT exist on the page
+$results->assertDontSee('Hello World');
+
+// Verify that "Hello World" does NOT exist within any h1 tag
+$results->assertDontSee('Hello World', 'h1');

user_guide_src/source/testing/response/026.php

@@ -1,6 +1,7 @@
 <?php
 
-// Check that an element with class 'notice' exists
-$results->seeElement('.notice');
-// Check that an element with id 'title' exists
-$results->seeElement('#title');
+// Verify that an element with class 'notice' exists
+$results->assertSeeElement('.notice');
+
+// Verify that an element with id 'title' exists
+$results->assertSeeElement('#title');

user_guide_src/source/testing/response/027.php

@@ -1,4 +1,4 @@
 <?php
 
 // Verify that an element with id 'title' does NOT exist
-$results->dontSeeElement('#title');
+$results->assertDontSeeElement('#title');

user_guide_src/source/testing/response/028.php

@@ -1,6 +1,7 @@
 <?php
 
-// Check that a link exists with 'Upgrade Account' as the text::
-$results->seeLink('Upgrade Account');
-// Check that a link exists with 'Upgrade Account' as the text, AND a class of 'upsell'
-$results->seeLink('Upgrade Account', '.upsell');
+// Verify that a link exists with 'Upgrade Account' as the text::
+$results->assertSeeLink('Upgrade Account');
+
+// Verify that a link exists with 'Upgrade Account' as the text, AND a class of 'upsell'
+$results->assertSeeLink('Upgrade Account', '.upsell');