How to use goToLearnPage method of com.github.epadronu.balin.core.ComponentTests class

...98            }99        }100        // And a component for the navigation links101        class NavLinks(page: Page, element: WebElement) : Component(page, element) {102            fun goToLearnPage(): ReferencePage {103                `$`("a", 0).click()104                return browser.at(::ReferencePage)105            }106        }107        // And the Kotlin's website index page108        class IndexPage(browser: Browser) : Page(browser) {109            override val url = "https://kotlinlang.org/"110            override val at = at {111                title == "Kotlin Programming Language"112            }113            val navLinks by lazy {114                `$`("div.nav-links", 0).component(::NavLinks)115            }116        }117        Browser.drive(driverFactory) {118            // When I visit the Kotlin's website index page119            val indexPage = to(::IndexPage)120            // And I click on the Learn navigation link121            val referencePage = indexPage.navLinks.goToLearnPage()122            // Then the browser should land on the Reference page123            assertEquals(referencePage.header, "Learn Kotlin")124        }125    }126    @Test(dataProvider = "JavaScript-incapable WebDriver factory")127    fun `Use WebElement#click in a component to place the browser at a different page`(driverFactory: () -> WebDriver) {128        // Given the Kotlin's reference page129        class ReferencePage(browser: Browser) : Page(browser) {130            override val at = at {131                title == "Reference - Kotlin Programming Language"132            }133            val header by lazy {134                `$`("h1", 0).text135            }136        }137        // And a component for the navigation links138        class NavLinks(page: Page, element: WebElement) : Component(page, element) {139            fun goToLearnPage() = `$`("a", 0).click(::ReferencePage)140        }141        // And the Kotlin's website index page142        class IndexPage(browser: Browser) : Page(browser) {143            override val url = "https://kotlinlang.org/"144            override val at = at {145                title == "Kotlin Programming Language"146            }147            val navLinks by lazy {148                `$`("div.nav-links", 0).component(::NavLinks)149            }150        }151        Browser.drive(driverFactory) {152            // When I visit the Kotlin's website index page153            val indexPage = to(::IndexPage)154            // And I click on the Learn navigation link155            val referencePage = indexPage.navLinks.goToLearnPage()156            // Then the browser should land on the Reference page157            assertEquals(referencePage.header, "Learn Kotlin")158        }159    }160}161/* ***************************************************************************/...