public function testSkippedGroups()
{
$context = new Context();
$this->assertFalse($context->hasSkippedGroups());
$this->assertSame([], $context->getSkippedGroups());
$this->assertNull($context->get(Context::SKIPPED_GROUPS));
$context->skipGroup('test');
$this->assertTrue($context->hasSkippedGroups());
$this->assertEquals(['test'], $context->getSkippedGroups());
$this->assertEquals(['test'], $context->get(Context::SKIPPED_GROUPS));
$context->skipGroup('test1');
$this->assertTrue($context->hasSkippedGroups());
$this->assertEquals(['test', 'test1'], $context->getSkippedGroups());
$this->assertEquals(['test', 'test1'], $context->get(Context::SKIPPED_GROUPS));
$context->skipGroup('test');
$this->assertTrue($context->hasSkippedGroups());
$this->assertEquals(['test', 'test1'], $context->getSkippedGroups());
$this->assertEquals(['test', 'test1'], $context->get(Context::SKIPPED_GROUPS));
$context->undoGroupSkipping('test');
$this->assertTrue($context->hasSkippedGroups());
$this->assertEquals(['test1'], $context->getSkippedGroups());
$this->assertEquals(['test1'], $context->get(Context::SKIPPED_GROUPS));
$context->undoGroupSkipping('test1');
$this->assertFalse($context->hasSkippedGroups());
$this->assertSame([], $context->getSkippedGroups());
$this->assertNull($context->get(Context::SKIPPED_GROUPS));
}