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<?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/>.
/**
* Unit tests for the progress classes.
*
* @package core_progress
* @category phpunit
* @copyright 2013 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Progress tests.
*/
class core_progress_testcase extends basic_testcase {
/**
* Tests for basic use with simple numeric progress.
*/
public function test_basic() {
$progress = new core_mock_progress();
// Check values of empty progress things.
$this->assertFalse($progress->is_in_progress_section());
// Start progress counting, check basic values and check that update
// gets called.
$progress->start_progress('hello', 10);
$this->assertTrue($progress->was_update_called());
$this->assertTrue($progress->is_in_progress_section());
$this->assertEquals('hello', $progress->get_current_description());
// Check numeric position and indeterminate count.
$this->assert_min_max(0.0, 0.0, $progress);
$this->assertEquals(0, $progress->get_progress_count());
// Make some progress and check that the time limit gets added.
$progress->step_time();
core_php_time_limit::get_and_clear_unit_test_data();
$progress->progress(2);
$this->assertTrue($progress->was_update_called());
$this->assertEquals(array(\core\progress\base::TIME_LIMIT_WITHOUT_PROGRESS),
core_php_time_limit::get_and_clear_unit_test_data());
// Check the new value.
$this->assert_min_max(0.2, 0.2, $progress);
// Do another progress run at same time, it should be ignored.
$progress->progress(3);
$this->assertFalse($progress->was_update_called());
$this->assert_min_max(0.3, 0.3, $progress);
// End the section. This should cause an update.
$progress->end_progress();
$this->assertTrue($progress->was_update_called());
// Because there are no sections left open, it thinks we finished.
$this->assert_min_max(1.0, 1.0, $progress);
// There was 1 progress call.
$this->assertEquals(1, $progress->get_progress_count());
}
/**
* Tests progress that is nested and/or indeterminate.
*/
public function test_nested() {
// Outer progress goes from 0 to 10.
$progress = new core_mock_progress();
$progress->start_progress('hello', 10);
// Get up to 4, check position.
$progress->step_time();
$progress->progress(4);
$this->assert_min_max(0.4, 0.4, $progress);
$this->assertEquals('hello', $progress->get_current_description());
// Now start indeterminate progress.
$progress->start_progress('world');
$this->assert_min_max(0.4, 0.5, $progress);
$this->assertEquals('world', $progress->get_current_description());
// Do some indeterminate progress and count it (once per second).
$progress->step_time();
$progress->progress();
$this->assertEquals(2, $progress->get_progress_count());
$progress->progress();
$this->assertEquals(2, $progress->get_progress_count());
$progress->step_time();
$progress->progress();
$this->assertEquals(3, $progress->get_progress_count());
$this->assert_min_max(0.4, 0.5, $progress);
// Exit the indeterminate section.
$progress->end_progress();
$this->assert_min_max(0.5, 0.5, $progress);
$progress->step_time();
$progress->progress(7);
$this->assert_min_max(0.7, 0.7, $progress);
// Enter a numbered section (this time with a range of 5).
$progress->start_progress('frogs', 5);
$this->assert_min_max(0.7, 0.7, $progress);
$progress->step_time();
$progress->progress(1);
$this->assert_min_max(0.72, 0.72, $progress);
$progress->step_time();
$progress->progress(3);
$this->assert_min_max(0.76, 0.76, $progress);
// Now enter another indeterminate section.
$progress->start_progress('and');
$this->assert_min_max(0.76, 0.78, $progress);
// Make some progress, should increment indeterminate count.
$progress->step_time();
$progress->progress();
$this->assertEquals(7, $progress->get_progress_count());
// Enter numbered section, won't make any difference to values.
$progress->start_progress('zombies', 2);
$progress->step_time();
$progress->progress(1);
$this->assert_min_max(0.76, 0.78, $progress);
$this->assertEquals(8, $progress->get_progress_count());
// Leaving it will make no difference too.
$progress->end_progress();
// Leaving the indeterminate section will though.
$progress->end_progress();
$this->assert_min_max(0.78, 0.78, $progress);
// Leave the two numbered sections.
$progress->end_progress();
$this->assert_min_max(0.8, 0.8, $progress);
$progress->end_progress();
$this->assertFalse($progress->is_in_progress_section());
}
/**
* Tests the feature for 'weighting' nested progress.
*/
public function test_nested_weighted() {
$progress = new core_mock_progress();
$progress->start_progress('', 10);
// First nested child has 2 units of its own and is worth 1 unit.
$progress->start_progress('', 2);
$progress->step_time();
$progress->progress(1);
$this->assert_min_max(0.05, 0.05, $progress);
$progress->end_progress();
$this->assert_min_max(0.1, 0.1, $progress);
// Next child has 2 units of its own but is worth 3 units.
$progress->start_progress('weighted', 2, 3);
$progress->step_time();
$progress->progress(1);
$this->assert_min_max(0.25, 0.25, $progress);
$progress->end_progress();
$this->assert_min_max(0.4, 0.4, $progress);
// Next indeterminate child is worth 6 units.
$progress->start_progress('', \core\progress\base::INDETERMINATE, 6);
$progress->step_time();
$progress->progress();
$this->assert_min_max(0.4, 1.0, $progress);
$progress->end_progress();
$this->assert_min_max(1.0, 1.0, $progress);
}
/**
* I had some issues with real use in backup/restore, this test is intended
* to be similar.
*/
public function test_realistic() {
$progress = new core_mock_progress();
$progress->start_progress('parent', 100);
$progress->start_progress('child', 1);
$progress->progress(1);
$this->assert_min_max(0.01, 0.01, $progress);
$progress->end_progress();
$this->assert_min_max(0.01, 0.01, $progress);
}
/**
* To avoid causing problems, progress needs to work for sections that have
* zero entries.
*/
public function test_zero() {
$progress = new core_mock_progress();
$progress->start_progress('parent', 100);
$progress->progress(1);
$this->assert_min_max(0.01, 0.01, $progress);
$progress->start_progress('child', 0);
// For 'zero' progress, the progress section as immediately complete
// within the parent count, so it moves up to 2%.
$this->assert_min_max(0.02, 0.02, $progress);
$progress->progress(0);
$this->assert_min_max(0.02, 0.02, $progress);
$progress->end_progress();
$this->assert_min_max(0.02, 0.02, $progress);
}
/**
* Tests for any exceptions due to invalid calls.
*/
public function test_exceptions() {
$progress = new core_mock_progress();
// Check errors when empty.
try {
$progress->progress();
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~without start_progress~', $e->getMessage()));
}
try {
$progress->end_progress();
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~without start_progress~', $e->getMessage()));
}
try {
$progress->get_current_description();
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~Not inside progress~', $e->getMessage()));
}
try {
$progress->start_progress('', 1, 7);
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~must be 1~', $e->getMessage()));
}
// Check invalid start (-2).
try {
$progress->start_progress('hello', -2);
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~cannot be negative~', $e->getMessage()));
}
// Indeterminate when value expected.
$progress->start_progress('hello', 10);
try {
$progress->progress(\core\progress\base::INDETERMINATE);
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~expecting value~', $e->getMessage()));
}
// Value when indeterminate expected.
$progress->start_progress('hello');
try {
$progress->progress(4);
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~expecting INDETERMINATE~', $e->getMessage()));
}
// Illegal values.
$progress->start_progress('hello', 10);
try {
$progress->progress(-2);
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~out of range~', $e->getMessage()));
}
try {
$progress->progress(11);
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~out of range~', $e->getMessage()));
}
// You are allowed two with the same value...
$progress->progress(4);
$progress->step_time();
$progress->progress(4);
$progress->step_time();
// ...but not to go backwards.
try {
$progress->progress(3);
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~backwards~', $e->getMessage()));
}
// When you go forward, you can't go further than there is room.
try {
$progress->start_progress('', 1, 7);
$this->fail();
} catch (coding_exception $e) {
$this->assertEquals(1, preg_match('~would exceed max~', $e->getMessage()));
}
}
public function test_progress_change() {
$progress = new core_mock_progress();
$progress->start_progress('hello', 50);
for ($n = 1; $n <= 10; $n++) {
$progress->increment_progress();
}
// Check numeric position and indeterminate count.
$this->assert_min_max(0.2, 0.2, $progress);
$this->assertEquals(1, $progress->get_progress_count());
// Make some progress and check that the time limit gets added.
$progress->step_time();
for ($n = 1; $n <= 20; $n++) {
$progress->increment_progress();
}
$this->assertTrue($progress->was_update_called());
// Check the new value.
$this->assert_min_max(0.6, 0.6, $progress);
$this->assertEquals(2, $progress->get_progress_count());
for ($n = 1; $n <= 10; $n++) {
$progress->increment_progress();
}
$this->assertFalse($progress->was_update_called());
$this->assert_min_max(0.8, 0.8, $progress);
$this->assertEquals(2, $progress->get_progress_count());
// Do another progress run at same time, it should be ignored.
$progress->increment_progress(5);
$this->assertFalse($progress->was_update_called());
$this->assert_min_max(0.9, 0.9, $progress);
$this->assertEquals(2, $progress->get_progress_count());
for ($n = 1; $n <= 3; $n++) {
$progress->step_time();
$progress->increment_progress(1);
}
$this->assertTrue($progress->was_update_called());
$this->assert_min_max(0.96, 0.96, $progress);
$this->assertEquals(5, $progress->get_progress_count());
// End the section. This should cause an update.
$progress->end_progress();
$this->assertTrue($progress->was_update_called());
$this->assertEquals(5, $progress->get_progress_count());
// Because there are no sections left open, it thinks we finished.
$this->assert_min_max(1.0, 1.0, $progress);
}
/**
* Checks the current progress values are as expected.
*
* @param number $min Expected min progress
* @param number $max Expected max progress
* @param core_mock_progress $progress
*/
private function assert_min_max($min, $max, core_mock_progress $progress) {
$this->assertEquals(array($min, $max),
$progress->get_progress_proportion_range());
}
}
/**
* Helper class that records when update_progress is called and allows time
* stepping.
*/
class core_mock_progress extends \core\progress\base {
private $updatecalled = false;
private $time = 1;
/**
* Checks if update was called since the last call to this function.
*
* @return boolean True if update was called
*/
public function was_update_called() {
if ($this->updatecalled) {
$this->updatecalled = false;
return true;
}
return false;
}
/**
* Steps the current time by 1 second.
*/
public function step_time() {
$this->time++;
}
protected function update_progress() {
$this->updatecalled = true;
}
protected function get_time() {
return $this->time;
}
}