Variable assertions

With variable assertions, you can validate the value of a variable against an expected value. Some common use cases for variable assertions include:

• Modifying a variable with mathematical operations or JavaScript, then asserting that it equals the expected value.
• Asserting on the expected value coming from a DataTable.
• Asserting on dynamic content that is not associated with an element on the page, such as the value of variable created from a custom JavaScript step.

Create and configure a variable assertion

In the mabl Trainer, click on ✔︎ (Assert) > Variable to add a variable assertion. Then define your assertion criteria:

• Variable: Select a variable from the dropdown.
• Assertion type: Choose an assertion type. Supported assertion types for variables include:
  • Equals
  • Does not equal
  • Contains
  • Does not contain
  • Starts with
  • Does not start with
  • Ends with
  • Does not end with
  • Greater than
  • Less than
  • Greater than or equals
  • Less than or equals
  • Matches regex
• Expected value: When you select a variable, mabl displays its current value. You can edit this field as needed. To reference a variable, use mabl variable syntax: {{@yourVar}}.

Click OK to save and apply the variable assertion to your mabl test.