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@mod @mod_quiz @quiz @quiz_statistics
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Feature: Robustness of the statistics calculations with missing qusetions
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In order to be able to install and uninstall plugins
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As a teacher
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I need the statistics to work even if a question type has been uninstalled
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Scenario: Statistics can be calculated even after a question type has been uninstalled
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Given the following "users" exist:
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| username |
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| teacher |
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| student |
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And the following "courses" exist:
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| fullname | shortname |
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| Course 1 | C1 |
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And the following "course enrolments" exist:
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| user | course | role |
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| teacher | C1 | editingteacher |
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| student | C1 | student |
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And the following "question categories" exist:
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| contextlevel | reference | name |
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| Course | C1 | Test questions |
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And the following "questions" exist:
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| questioncategory | qtype | name |
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| Test questions | truefalse | Test question 1 |
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| Test questions | truefalse | Test question 2 |
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And the following "activities" exist:
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| activity | name | course | idnumber |
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| quiz | Quiz 1 | C1 | quiz1 |
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And quiz "Quiz 1" contains the following questions:
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| question | page |
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| Test question 1 | 1 |
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| Test question 2 | 1 |
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And user "student" has attempted "Quiz 1" with responses:
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| slot | response |
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| 1 | True |
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| 2 | True |
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And question "Test question 1" is changed to simulate being of an uninstalled type
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And question "Test question 2" no longer exists in the database
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When I am on the "Quiz 1" "mod_quiz > Statistics report" page logged in as teacher
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Then I should see "Quiz structure analysis"
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And "1" row "Question name" column of "questionstatistics" table should contain "Missing question"
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And "1" row "Attempts" column of "questionstatistics" table should contain "1"
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And "1" row "Intended weight" column of "questionstatistics" table should contain "50.00%"
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And "2" row "Question name" column of "questionstatistics" table should contain "Missing question"
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And "2" row "Attempts" column of "questionstatistics" table should contain "1"
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And "2" row "Intended weight" column of "questionstatistics" table should contain "50.00%"
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