Golang Page.RunScript方法代碼示例

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				})

				By("asserting on whether elements are enabled", func() {
					Expect(page.Find("#some_checkbox")).To(BeEnabled())
					Expect(page.Find("#some_disabled_checkbox")).NotTo(BeEnabled())
				})
			})

			It("should support element actions", func() {
				By("clicking on an element", func() {
					checkbox := page.Find("#some_checkbox")
					Expect(checkbox.Click()).To(Succeed())
					Expect(checkbox).To(BeSelected())
					Expect(checkbox.Click()).To(Succeed())
					Expect(checkbox).NotTo(BeSelected())
				})

				By("double-clicking on an element", func() {
					selection := page.Find("#double_click")
					Expect(selection.DoubleClick()).To(Succeed())
					Expect(selection).To(HaveText("double-click success"))
				})

				By("filling out an element", func() {
					Expect(page.Find("#some_input").Fill("some other value")).To(Succeed())
					Expect(page.Find("#some_input")).To(HaveAttribute("value", "some other value"))
				})

				// NOTE: PhantomJS regression causes crash on file upload
				if name != "PhantomJS" {
					By("uploading a file", func() {
						Expect(page.Find("#file_picker").UploadFile("test_page.html")).To(Succeed())
						var result string
						Expect(page.RunScript("return document.getElementById('file_picker').value;", nil, &result)).To(Succeed())
						Expect(result).To(HaveSuffix("test_page.html"))
					})
				}

				By("checking and unchecking a checkbox", func() {
					checkbox := page.Find("#some_checkbox")
					Expect(checkbox.Uncheck()).To(Succeed())
					Expect(checkbox).NotTo(BeSelected())
					Expect(checkbox.Check()).To(Succeed())
					Expect(checkbox).To(BeSelected())
					Expect(checkbox.Uncheck()).To(Succeed())
					Expect(checkbox).NotTo(BeSelected())
				})

				By("selecting an option by text", func() {
					selection := page.Find("#some_select")
					Expect(selection.All("option").At(1)).NotTo(BeSelected())
					Expect(selection.Select("second option")).To(Succeed())
					Expect(selection.All("option").At(1)).To(BeSelected())
				})

				By("submitting a form", func() {
					Expect(page.Find("#some_form").Submit()).To(Succeed())
					Eventually(func() bool { return submitted }).Should(BeTrue())
				})
			})
		})

		Describe("Page interactions", func() {
			It("should support retrieving page properties", func() {
				Expect(page).To(HaveTitle("Page Title"))
				Expect(page).To(HaveURL(server.URL + "/"))

//.........這裏部分代碼省略.........
			By("finding multiple elements", func() {
				Expect(page.All("select").All("option")).To(BeVisible())
				Expect(page.All("h1,h2")).NotTo(BeVisible())
			})
		})

		It("should support retrieving element properties", func() {
			By("asserting on element text", func() {
				Expect(page.Find("header")).To(HaveText("Title"))
				Expect(page.Find("header")).NotTo(HaveText("Not-Title"))
				Expect(page.Find("header")).To(MatchText("T.+e"))
				Expect(page.Find("header")).NotTo(MatchText("X.+e"))
			})

			By("asserting on whether elements are active", func() {
				Expect(page.Find("#labeled_field")).NotTo(BeActive())
				Expect(page.Find("#labeled_field").Click()).To(Succeed())
				Expect(page.Find("#labeled_field")).To(BeActive())
			})

			By("asserting on element attributes", func() {
				Expect(page.Find("#some_checkbox")).To(HaveAttribute("type", "checkbox"))
			})

			By("asserting on element CSS", func() {
				Expect(page.Find("#some_element")).To(HaveCSS("color", "rgba(0, 0, 255, 1)"))
				Expect(page.Find("#some_element")).To(HaveCSS("color", "rgb(0, 0, 255)"))
				Expect(page.Find("#some_element")).To(HaveCSS("color", "blue"))
			})

			By("asserting on whether elements are selected", func() {
				Expect(page.Find("#some_checkbox")).NotTo(BeSelected())
				Expect(page.Find("#some_selected_checkbox")).To(BeSelected())
			})

			By("asserting on element visibility", func() {
				Expect(page.Find("header h1")).To(BeVisible())
				Expect(page.Find("header h2")).NotTo(BeVisible())
			})

			By("asserting on whether elements are enabled", func() {
				Expect(page.Find("#some_checkbox")).To(BeEnabled())
				Expect(page.Find("#some_disabled_checkbox")).NotTo(BeEnabled())
			})
		})

		It("should support element actions", func() {
			By("clicking on an element", func() {
				checkbox := page.Find("#some_checkbox")
				Expect(checkbox.Click()).To(Succeed())
				Expect(checkbox).To(BeSelected())
				Expect(checkbox.Click()).To(Succeed())
				Expect(checkbox).NotTo(BeSelected())
			})

			By("double-clicking on an element", func() {
				selection := page.Find("#double_click")
				Expect(selection.DoubleClick()).To(Succeed())
				Expect(selection).To(HaveText("double-click success"))
			})

			By("filling out an element", func() {
				Expect(page.Find("#some_input").Fill("some other value")).To(Succeed())
				Expect(page.Find("#some_input")).To(HaveAttribute("value", "some other value"))
			})

			// NOTE: PhantomJS regression causes crash on file upload
			if browserName != "PhantomJS" {
				By("uploading a file", func() {
					Expect(page.Find("#file_picker").UploadFile("test_page.html")).To(Succeed())
					var result string
					Expect(page.RunScript("return document.getElementById('file_picker').value;", nil, &result)).To(Succeed())
					Expect(result).To(HaveSuffix("test_page.html"))
				})
			}

			By("checking and unchecking a checkbox", func() {
				checkbox := page.Find("#some_checkbox")
				Expect(checkbox.Uncheck()).To(Succeed())
				Expect(checkbox).NotTo(BeSelected())
				Expect(checkbox.Check()).To(Succeed())
				Expect(checkbox).To(BeSelected())
				Expect(checkbox.Uncheck()).To(Succeed())
				Expect(checkbox).NotTo(BeSelected())
			})

			By("selecting an option by text", func() {
				selection := page.Find("#some_select")
				Expect(selection.All("option").At(1)).NotTo(BeSelected())
				Expect(selection.Select("second option")).To(Succeed())
				Expect(selection.All("option").At(1)).To(BeSelected())
			})

			By("submitting a form", func() {
				Expect(page.Find("#some_form").Submit()).To(Succeed())
				Eventually(func() bool { return submitted }).Should(BeTrue())
			})
		})
	})
}

func testPage(browserName string, newPage pageFunc) {
	Describe("page test for "+browserName, func() {
		var (
			page   *agouti.Page
			server *httptest.Server
		)

		BeforeEach(func() {
			server = httptest.NewServer(http.HandlerFunc(func(response http.ResponseWriter, request *http.Request) {
				html, _ := ioutil.ReadFile("test_page.html")
				response.Write(html)
			}))

			var err error
			page, err = newPage()
			Expect(err).NotTo(HaveOccurred())

			Expect(page.Size(640, 480)).To(Succeed())
			Expect(page.Navigate(server.URL)).To(Succeed())
		})

		AfterEach(func() {
			Expect(page.Destroy()).To(Succeed())
			server.Close()
		})

		It("should support retrieving page properties", func() {
			Expect(page).To(HaveTitle("Page Title"))
			Expect(page).To(HaveURL(server.URL + "/"))
			Expect(page.HTML()).To(ContainSubstring("<h1>Title</h1>"))
		})

		It("should support JavaScript", func() {
			By("waiting for page JavaScript to take effect", func() {
				Expect(page.Find("#some_element")).NotTo(HaveText("some text"))
				Eventually(page.Find("#some_element"), "4s").Should(HaveText("some text"))
				Consistently(page.Find("#some_element")).Should(HaveText("some text"))
			})

			// NOTE: disabled due to recent Firefox regression with passing args
			if browserName != "Firefox" {
				By("executing provided JavaScript", func() {
					arguments := map[string]interface{}{"elementID": "some_element"}
					var result string
					Expect(page.RunScript("return document.getElementById(elementID).innerHTML;", arguments, &result)).To(Succeed())
					Expect(result).To(Equal("some text"))
				})
			}
		})

		It("should support taking screenshots", func() {
			Expect(page.Screenshot(".test.screenshot.png")).To(Succeed())
			defer os.Remove(".test.screenshot.png")
			file, _ := os.Open(".test.screenshot.png")
			_, err := png.Decode(file)
			Expect(err).NotTo(HaveOccurred())
		})

		It("should support links and navigation", func() {
			By("clicking on a link", func() {
				Expect(page.FindByLink("Click Me").Click()).To(Succeed())
				Expect(page.URL()).To(ContainSubstring("#new_page"))
			})

			By("navigating through browser history", func() {
				Expect(page.Back()).To(Succeed())
				Expect(page.URL()).NotTo(ContainSubstring("#new_page"))
				Expect(page.Forward()).To(Succeed())
				Expect(page.URL()).To(ContainSubstring("#new_page"))
			})

			By("refreshing the page", func() {
				checkbox := page.Find("#some_checkbox")
				Expect(checkbox.Check()).To(Succeed())
				Expect(page.Refresh()).To(Succeed())
				Expect(checkbox).NotTo(BeSelected())
			})
		})

		// NOTE: browsers besides PhantomJS do not support JavaScript logs
		if browserName == "PhantomJS" {
			It("should support retrieving logs", func() {
				Eventually(page).Should(HaveLoggedInfo("some log"))
				Expect(page).NotTo(HaveLoggedError())
				Eventually(page, "4s").Should(HaveLoggedError("ReferenceError: Can't find variable: doesNotExist\n  (anonymous function)"))
			})
		}

		It("should support switching frames", func() {
			By("switching to an iframe", func() {
				Expect(page.Find("#frame").SwitchToFrame()).To(Succeed())
				Expect(page.Find("body")).To(MatchText("Example Domain"))
			})

			// NOTE: PhantomJS does not support Page.SwitchToParentFrame
			if browserName != "PhantomJS" {
				By("switching back to the default frame by referring to the parent frame", func() {
					Expect(page.SwitchToParentFrame()).To(Succeed())
					Expect(page.Find("body")).NotTo(MatchText("Example Domain"))
				})
//.........這裏部分代碼省略.........