/**
* Test update_picture
*/
public function test_update_picture()
{
global $DB, $USER;
$this->resetAfterTest(true);
$user = self::getDataGenerator()->create_user();
self::setUser($user);
$context = context_user::instance($USER->id);
$contextid = $context->id;
$filename = "reddot.png";
$filecontent = "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38" . "GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==";
// Call the files api to create a file.
$draftfile = core_files_external::upload($contextid, 'user', 'draft', 0, '/', $filename, $filecontent, null, null);
$draftid = $draftfile['itemid'];
// Change user profile image.
$result = core_user_external::update_picture($draftid);
$result = external_api::clean_returnvalue(core_user_external::update_picture_returns(), $result);
$picture = $DB->get_field('user', 'picture', array('id' => $user->id));
// The new revision is in the url for the user.
$this->assertContains($picture, $result['profileimageurl']);
// Check expected URL for serving the image.
$this->assertContains("/{$contextid}/user/icon", $result['profileimageurl']);
// Delete image.
$result = core_user_external::update_picture(0, true);
$result = external_api::clean_returnvalue(core_user_external::update_picture_returns(), $result);
$picture = $DB->get_field('user', 'picture', array('id' => $user->id));
// No picture.
$this->assertEquals(0, $picture);
// Add again the user profile image (as admin).
$this->setAdminUser();
$context = context_user::instance($USER->id);
$admincontextid = $context->id;
$draftfile = core_files_external::upload($admincontextid, 'user', 'draft', 0, '/', $filename, $filecontent, null, null);
$draftid = $draftfile['itemid'];
$result = core_user_external::update_picture($draftid, false, $user->id);
$result = external_api::clean_returnvalue(core_user_external::update_picture_returns(), $result);
// The new revision is in the url for the user.
$picture = $DB->get_field('user', 'picture', array('id' => $user->id));
$this->assertContains($picture, $result['profileimageurl']);
$this->assertContains("/{$contextid}/user/icon", $result['profileimageurl']);
}
