L-electron-Rare/moodle
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MDL-19702 rewritten context caching by Sam Marshall + tweaks for potential problems caused by drift

Browse Source
This commit is contained in:
Petr Skoda
2010-10-26 16:21:23 +00:00
parent 510f8b0e5c
commit d0e538ba1c
2 changed files with 207 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/simpletest/testaccesslib.php
+62
View File
@@ -316,5 +316,67 @@ class accesslib_test extends UnitTestCaseUsingDatabase {
$this->assert(new ArraysHaveSameValuesExpectation(array($r2id, $r1id, $funnyid)), array_keys(get_switchable_roles($context)));
}
function test_context_cache() {
// Create cache, empty
$cache = new context_cache();
$this->assertEqual(0, $cache->get_approx_count());
// Put context in cache
$context = (object)array('id'=>37,'contextlevel'=>50,'instanceid'=>13);
$cache->add($context);
$this->assertEqual(1, $cache->get_approx_count());
// Get context out of cache
$this->assertEqual($context, $cache->get(50, 13));
$this->assertEqual($context, $cache->get_by_id(37));
// Try to get context that isn't there
$this->assertEqual(false, $cache->get(50, 99));
$this->assertEqual(false, $cache->get(99, 13));
$this->assertEqual(false, $cache->get_by_id(99));
// Remove context from cache
$cache->remove($context);
$this->assertEqual(0, $cache->get_approx_count());
$this->assertEqual(false, $cache->get(50, 13));
$this->assertEqual(false, $cache->get_by_id(37));
// Add a stack of contexts to cache
for($i=0; $i<context_cache::MAX_SIZE; $i++) {
$context = (object)array('id'=>$i, 'contextlevel'=>50,
'instanceid'=>$i+1);
$cache->add($context);
}
$this->assertEqual(context_cache::MAX_SIZE, $cache->get_approx_count());
// Get a random sample from the middle
$sample = (object)array(
'id'=>174, 'contextlevel'=>50, 'instanceid'=>175);
$this->assertEqual($sample, $cache->get(50, 175));
$this->assertEqual($sample, $cache->get_by_id(174));
// Now add one more; should result in size being reduced
$context = (object)array('id'=>99999, 'contextlevel'=>50,
'instanceid'=>99999);
$cache->add($context);
$this->assertEqual(context_cache::MAX_SIZE - context_cache::REDUCE_SIZE + 1,
$cache->get_approx_count());
// Check that the first ones are no longer there
$this->assertEqual(false, $cache->get(50, 175));
$this->assertEqual(false, $cache->get_by_id(174));
// Check that the last ones are still there
$bigid = context_cache::MAX_SIZE - 10;
$sample = (object)array(
'id'=>$bigid, 'contextlevel'=>50, 'instanceid'=>$bigid+1);
$this->assertEqual($sample, $cache->get(50, $bigid+1));
$this->assertEqual($sample, $cache->get_by_id($bigid));
// Reset the cache
$cache->reset();
$this->assertEqual(0, $cache->get_approx_count());
$this->assertEqual(false, $cache->get(50, $bigid+1));
}
}