MDL-20636 Current work-in-progress converting the question engine to Moodle 2.0

2011-01-13 18:35:29 +00:00
parent 5a7f931ee5
commit d1b7e03d5d
106 changed files with 19706 additions and 1725 deletions
@@ -0,0 +1,129 @@
+<?php
+
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+
+/**
+ * This file contains tests for the question_attempt_step_iterator class.
+ *
+ * @package moodlecore
+ * @subpackage questionengine
+ * @copyright 2009 The Open University
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+
+require_once(dirname(__FILE__) . '/../lib.php');
+require_once(dirname(__FILE__) . '/helpers.php');
+
+
+class question_attempt_step_iterator_test extends UnitTestCase {
+    private $qa;
+    private $iterator;
+
+    public function setUp() {
+        $question = test_question_maker::make_a_description_question();
+        $this->qa = new testable_question_attempt($question, 0);
+        for ($i = 0; $i < 3; $i++) {
+            $step = new question_attempt_step(array('i' => $i));
+            $this->qa->add_step($step);
+        }
+        $this->iterator = $this->qa->get_step_iterator();
+    }
+
+    public function tearDown() {
+        $this->qa = null;
+        $this->iterator = null;
+    }
+
+    public function test_foreach_loop() {
+        $i = 0;
+        foreach ($this->iterator as $key => $step) {
+            $this->assertEqual($i, $key);
+            $this->assertEqual($i, $step->get_qt_var('i'));
+            $i++;
+        }
+    }
+
+    public function test_foreach_loop_add_step_during() {
+        $i = 0;
+        foreach ($this->iterator as $key => $step) {
+            $this->assertEqual($i, $key);
+            $this->assertEqual($i, $step->get_qt_var('i'));
+            $i++;
+            if ($i == 2) {
+                $step = new question_attempt_step(array('i' => 3));
+                $this->qa->add_step($step);
+            }
+        }
+        $this->assertEqual(4, $i);
+    }
+
+    public function test_reverse_foreach_loop() {
+        $i = 2;
+        foreach ($this->qa->get_reverse_step_iterator() as $key => $step) {
+            $this->assertEqual($i, $key);
+            $this->assertEqual($i, $step->get_qt_var('i'));
+            $i--;
+        }
+    }
+
+    public function test_offsetExists_before_start() {
+        $this->assertFalse(isset($this->iterator[-1]));
+    }
+
+    public function test_offsetExists_at_start() {
+        $this->assertTrue(isset($this->iterator[0]));
+    }
+
+    public function test_offsetExists_at_endt() {
+        $this->assertTrue(isset($this->iterator[2]));
+    }
+
+    public function test_offsetExists_past_end() {
+        $this->assertFalse(isset($this->iterator[3]));
+    }
+
+    public function test_offsetGet_before_start() {
+        $this->expectException();
+        $step = $this->iterator[-1];
+    }
+
+    public function test_offsetGet_at_start() {
+        $step = $this->iterator[0];
+        $this->assertEqual(0, $step->get_qt_var('i'));
+    }
+
+    public function test_offsetGet_at_end() {
+        $step = $this->iterator[2];
+        $this->assertEqual(2, $step->get_qt_var('i'));
+    }
+
+    public function test_offsetGet_past_end() {
+        $this->expectException();
+        $step = $this->iterator[3];
+    }
+
+    public function test_cannot_set() {
+        $this->expectException();
+        $this->iterator[0] = null;
+    }
+
+    public function test_cannot_unset() {
+        $this->expectException();
+        unset($this->iterator[2]);
+    }
+}