My URL contain a number that is assigned to a particular item so it might be 1, 2, ..., 999 and so on.

2nd possible issue:

In your sample you're calling a function called .contain, and as per the cypress docs it is .contains (with an S).

CodePudding user response：

You do not need to invoke the text content of the value yielded from cy.url, as it is already a string.

Additionally, your regex is incorrect. It is matching for only strings that begin, contain, and ends with numbers.

Fixing the above, you could have something like...

cy.url().should('match', /https:\/\/www\.test\.com\/items\/(\d*)\.html/)