added Behat test to assert news are shown

block_news.php

@@ -48,7 +48,7 @@ public function specialization() {
      *
      * @return stdClass - the block content.
      */
-    public function get_content() : stdClass {
+    public function get_content(): stdClass {
         global $OUTPUT;
 
         if ($this->content !== null) {
@@ -82,7 +82,7 @@ public function get_content() : stdClass {
      *
      * @return array news items.
      */
-    public function fetch_news() : array {
+    public function fetch_news(): array {
         // Template data for mustache.
         $template = new stdClass();
 
@@ -144,7 +144,7 @@ public function fetch_news() : array {
      *
      * @return array of the pages where the block can be added.
      */
-    public function applicable_formats() : array {
+    public function applicable_formats(): array {
         return [
             'admin' => false,
             'site-index' => true,
@@ -159,7 +159,7 @@ public function applicable_formats() : array {
      *
      * @return bool.
      */
-    public function instance_allow_multiple() : bool {
+    public function instance_allow_multiple(): bool {
         return false;
     }
 
@@ -168,7 +168,7 @@ public function instance_allow_multiple() : bool {
      *
      * @return bool.
      */
-    public function has_config() : bool {
+    public function has_config(): bool {
         return true;
     }
 }

classes/admin_setting_date.php

@@ -45,7 +45,7 @@ public function __construct($name, $visiblename, $description, $defaultsetting)
      * @param string $query
      * @return string HMTL field
      */
-    public function output_html($data, $query='') : string {
+    public function output_html($data, $query=''): string {
         $default = $this->get_defaultsetting();
 
         return format_admin_setting($this, $this->visiblename,

classes/privacy/provider.php

@@ -38,7 +38,7 @@ class provider implements \core_privacy\local\metadata\null_provider {
      *
      * @return  string
      */
-    public static function get_reason() : string {
+    public static function get_reason(): string {
         return 'privacy:metadata';
     }
 }

tests/behat/show_news.feature

@@ -0,0 +1,28 @@
+@block @block_news
+Feature: Show news
+  In order to be informed about news
+  As a user
+  I need to be able to see that the news block shows the intended news.
+
+  Background:
+    Given the following "blocks" exist:
+      | blockname | contextlevel | reference  | pagetypepattern | defaultregion |
+      | news      | System       | 1          | site-index      | side-pre      |
+    And the following config values are set as admin:
+      | config                  | value                  | plugin     |
+      | title1                  | News Title One         | block_news |
+      | description1            | News Description One   | block_news |
+      | link1                   | https://apple.com      | block_news |
+      | title2                  | News Title Two         | block_news |
+      | description2            | News Description Two   | block_news |
+      | link2                   | https://google.com     | block_news |
+      | title3                  | News Title Three       | block_news |
+      | description3            | News Description Three | block_news |
+      | link3                   | https://ucl.ac.uk      | block_news |
+
+  Scenario: See news as intended.
+    When I am on site homepage
+    Then I should see "News"
+    And I should see "News Title One"
+    And I should see "News Title Two"
+    And I should see "News Title Three"