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Hakan GÜL
Hakan GÜL

Posted on Edited on Originally published at hakangul.lovable.app

TestFly Part 4: AI-assisted test generation with testfly-mcp and self-healing locators

#testfly #ai #mcp #testing

TestFly and the Model Context Protocol

The testfly-mcp companion server connects TestFly to AI coding assistants such as Claude Desktop, Cursor, Copilot and Antigravity.

Connecting testfly-mcp

Add the server to your mcp_config.json:

{
  "mcpServers": {
    "testfly-mcp": {
      "command": "npx",
      "args": ["-y", "testfly-mcp@latest"]
    }
  }
}
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Generating TestFly code from a user journey

Through MCP, the assistant launches a browser, records the interactions and writes TestFly code that uses accessibility-first locators. A checkout flow comes out like this:

package io.testfly.examples;

import io.testfly.test.BaseTest;
import io.testfly.locator.Role;
import org.testng.annotations.Test;
import static org.testng.Assert.assertEquals;

public class CheckoutFlowTest extends BaseTest {

    @Test
    public void userCompletesPurchase() {
        open("/products");
        getByRole(Role.BUTTON).withName("Add to Cart").click();
        getByRole(Role.LINK, "Checkout").click();
        getByLabel("Full Name").type("Hakan Gül");
        getByRole(Role.BUTTON).withName("Place Order").click();

        assertEquals(getByTestId("order-status").getText(), "CONFIRMED");
    }
}
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Self-healing locators

Turn on locators.selfHealing in testfly.yml:

locators:
  selfHealing: true
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If an element can't be found with its primary selector, TestFly's healing engine looks at the surrounding DOM attributes (accessible name, ARIA role, nearby text) to find it, and the CI pipeline stays green.

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