From 1c00938de970cb41b95757a29f2af26e2afd49b1 Mon Sep 17 00:00:00 2001
From: Paul Holden <paulh@moodle.com>
Date: Wed, 21 Apr 2021 22:17:48 +0100
Subject: [PATCH] MDL-71392 mod_quiz: don't display grade to pass if not set.

---
 mod/quiz/tests/behat/info_page.feature | 10 ++++++++++
 mod/quiz/view.php                      |  3 ++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/mod/quiz/tests/behat/info_page.feature b/mod/quiz/tests/behat/info_page.feature
index 3a9d45cef7f..96c34611c29 100644
--- a/mod/quiz/tests/behat/info_page.feature
+++ b/mod/quiz/tests/behat/info_page.feature
@@ -30,3 +30,13 @@ Feature: Display of information before starting a quiz
       | TF1      | 1    |
     When I am on the "Quiz 1" "mod_quiz > View" page logged in as "student"
     Then I should see "Grade to pass: 60.00 out of 100.00"
+
+  Scenario: Check the pass grade is not displayed if not set
+    Given the following "activities" exist:
+      | activity   | name   | intro              | course | idnumber | gradepass |
+      | quiz       | Quiz 1 | Quiz 1 description | C1     | quiz1    |           |
+    And quiz "Quiz 1" contains the following questions:
+      | question | page |
+      | TF1      | 1    |
+    When I am on the "Quiz 1" "mod_quiz > View" page logged in as "student"
+    Then I should not see "Grade to pass: 0.00"
diff --git a/mod/quiz/view.php b/mod/quiz/view.php
index a8137c9b613..53edef2b677 100644
--- a/mod/quiz/view.php
+++ b/mod/quiz/view.php
@@ -187,7 +187,8 @@ if ($quiz->attempts != 1) {
             quiz_get_grading_option_name($quiz->grademethod));
 }
 
-if ($item && $item->gradepass) {
+// Inform user of the grade to pass if non-zero.
+if ($item && grade_floats_different($item->gradepass, 0)) {
     $a = new stdClass();
     $a->grade = quiz_format_grade($quiz, $item->gradepass);
     $a->maxgrade = quiz_format_grade($quiz, $quiz->grade);