public function test_get_course_categories()
{
$this->resetAfterTest();
$generator = $this->getDataGenerator();
$cat1 = $generator->create_category((object) ['name' => 'cat1']);
$cat2 = $generator->create_category((object) ['name' => 'cat2', 'parent' => $cat1->id]);
$cat3 = $generator->create_category((object) ['name' => 'cat3', 'parent' => $cat2->id]);
$course1 = $generator->create_course((object) ['category' => $cat3->id, 'visible' => 0, 'oldvisible' => 0]);
$categories = local::get_course_categories($course1);
// First item in array should be immediate parent - $cat3.
$expected = $cat3;
$actual = reset($categories);
$this->assertEquals($expected->id, $actual->id);
// Second item in array should be parent of immediate parent - $cat2.
$expected = $cat2;
$actual = array_slice($categories, 1, 1);
$actual = reset($actual);
$this->assertEquals($expected->id, $actual->id);
// Final item in array should be a root category - $cat1.
$actual = end($categories);
$this->assertEmpty($actual->parent);
$expected = $cat1;
$this->assertEquals($expected->id, $actual->id);
}
