geb-skill
Generates Geb browser automation tests in Groovy with Spock integration. jQuery-like content DSL and page object pattern. Use when user mentions "Geb", "Groovy test", "GebSpec", "Browser.drive". Triggers on: "Geb", "GebSpec", "Groovy browser test", "Browser.drive".
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/lambdatest/agent-skills --skill geb-skill- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads geb-skill automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
Geb Automation Skill
For TestMu AI cloud execution, see reference/cloud-integration.md and shared/testmu-cloud-reference.md.
Core Patterns
Basic Test (Spock)
import geb.spock.GebSpec
class LoginSpec extends GebSpec {
def "login with valid credentials"() {
when:
to LoginPage
emailInput.value("user@test.com")
passwordInput.value("password123")
loginButton.click()
then:
at DashboardPage
welcomeMessage.text().contains("Welcome")
}
def "login shows error for invalid credentials"() {
when:
to LoginPage
emailInput.value("wrong@test.com")
passwordInput.value("wrong")
loginButton.click()
then:
at LoginPage
errorMessage.displayed
errorMessage.text().contains("Invalid")
}
}
Page Objects
class LoginPage extends geb.Page {
static url = "/login"
static at = { title == "Login" }
static content = {
emailInput { $("#email") }
passwordInput { $("#password") }
loginButton { $("button[type='submit']") }
errorMessage(required: false) { $(".error") }
}
}
class DashboardPage extends geb.Page {
static url = "/dashboard"
static at = { $(".dashboard").displayed }
static content = {
welcomeMessage { $(".welcome") }
userName { $(".user-name") }
}
}
Navigator API
$("css-selector")
$("div", class: "active")
$("input", name: "email")
$("div.items li", 0) // First match
$("div.items li").size() // Count
// Actions
element.click()
element.value("text")
element << "text" // Append text
element.text()
element.displayed
element.@href // Attribute
Cloud: driver = new RemoteWebDriver(new URL(gridUrl), caps)
Setup: Gradle with geb-spock and selenium-support dependencies
Cloud Execution on TestMu AI
Set environment variables: LT_USERNAME, LT_ACCESS_KEY
// GebConfig.groovy
environments {
lambdatest {
driver = {
def ltOptions = [
user: System.getenv("LT_USERNAME"),
accessKey: System.getenv("LT_ACCESS_KEY"),
build: "Geb Build",
name: "Geb Test",
platformName: "Windows 11",
video: true,
console: true,
network: true,
]
def caps = new ChromeOptions()
caps.setCapability("LT:Options", ltOptions)
new RemoteWebDriver(
new URL("https://hub.lambdatest.com/wd/hub"), caps)
}
}
}
Run: ./gradlew test -Dgeb.env=lambdatest
Run: ./gradlew test
Deep Patterns
See reference/playbook.md for production-grade patterns:
| Section | What You Get |
|---|---|
| §1 Project Setup | build.gradle, GebConfig.groovy, environments, waiting config |
| §2 Page Objects | Content DSL, at checks, modules for reusable components |
| §3 Spec Tests | Spock integration, data-driven with @Unroll, @Stepwise flows |
| §4 Waiting & Async | Waiting presets, JavaScript interaction, alerts/confirms |
| §5 Advanced Patterns | File upload/download, windows, frames, custom extensions |
| §6 API Testing | REST API specs with Groovy JsonSlurper |
| §7 CI/CD Integration | GitHub Actions with headless Chrome, Gradle caching |
| §8 Debugging Table | 12 common problems with causes and fixes |
| §9 Best Practices | 14-item Geb testing checklist |
FAQ
What does the geb-skill skill do?
Generates Geb browser automation tests in Groovy with Spock integration. jQuery-like content DSL and page object pattern. Use when user mentions "Geb", "Groovy test", "GebSpec", "Browser.drive". Triggers on: "Geb", "GebSpec", "Groovy browser test", "Browser.drive".
How do I install geb-skill?
Run npx skills add https://github.com/lambdatest/agent-skills --skill geb-skill in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/geb-skill/ (personal) or .claude/skills/geb-skill/ (project).
Which AI agents can use geb-skill?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is geb-skill safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains geb-skill?
It is published by lambdatest in lambdatest/agent-skills. It has 202 recorded installs.
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