Google\Cloud\Tests\Snippets\PubSub\TopicTest::testPublish PHP Method

    public function testPublish()
    {
        $snippet = $this->snippetFromMethod(Topic::class, 'publish');
        $snippet->addLocal('topic', $this->topic);
        $this->connection->publishMessage(Argument::any())->shouldBeCalled();
        $this->topic->setConnection($this->connection->reveal());
        $snippet->invoke();
    }