Unit Tests and Asserts for Strings?

Question

Unit testing

Gentlemen Programmers and Testers,
I have a very simple question, but very important for me:
Test:
If I enter the search query “Hello world” into Google,
then the title line of the search results should contain “Hello world”
How would you implement the line of the verification code (Assert ) for this test?
Answers are accepted in any programming language you know.
Thanks in advance and Happy New Year!
UPD.
Thanks for the replies, I would like to clarify the question: the actual page title bar should contain (contain) and not be equal to (equal) “Hello world”.
Those. the actual title line could be "Hello World - Google Search - Opera" and the test should pass with this line, but not with this one: "Hi Beer - Google Search - Opera".

Answer 1

Assert.assertTrue(title.contains("Привет мир"));

Answer 2

response.should have_selector("title:contains('All your base are belong to us')")

Answer 3

assertTrue("Hello world",title.getText());

Answer 4

PHPUnit:

$this->assertSelectEqual("title", "Привет мир", 1, file_get_contents("google.ru?q=Привет мир"));