this question is the duplicate post. the reason i ask is I couldn't get a valid answer (or at least the answer that i could understand) from them
hence I am asking again.
below is the code.there is an executable RunnerTest and a baseClass
#RunWith(Cucumber.class)
#CucumberOptions(plugin = {"html:target/whisper-html-report", "json:target/whisper_report.json", "com.cucumber.listener.ExtentCucumberFormatter:output/report.html"},tags = {"#Tag"})
public class RunnerTest {
}
public class BaseClass {
#Before
public void startUp() {
try {
driver = webModel.getUtils().browser();
driver.get(webModel.getUtils().getProperty("url"));
driver.manage().window().maximize();
} catch (Exception e) {
e.printStackTrace();
}
}
#After
public void tearDown(Scenario scenario) throws IOException {
if (scenario.isFailed()) {
TakesScreenshot camera = (TakesScreenshot) driver;
byte[] screenshot = camera.getScreenshotAs(BYTES);
scenario.embed(screenshot, "image/png");
System.out.println("screenShot taken");
}
driver.close();
driver.quit();
}
}
Feature file
#Tag
Feature: will this run
Scenario: try to execute feature
Given I feel like running the code
Then I run the code
Step definition-
import cucumber.api.java.en.Given;
import cucumber.api.java.en.Then;
public class run_this_MyStepdefs {
#Given("^I feel like running the code$")
public void iFeelLikeRunningTheCode() {
System.out.println("yes i feel like running the code");
}
#Then("^I run the code$")
public void iRunTheCode()
{
System.out.println("hence i am running the code");
}
}
below us the error code
cucumber.runtime.CucumberException: Failed to instantiate classBaseClass
I was trying to instantiate the base class, and this was the reason for the cucumber exceptions.
The moment I removed the base class object, all seemed to work fine.
Related
I'm trying to use Tesseract in flutter using the following package https://github.com/arrrrny/tesseract_ocr
I've download the app and run in.
The problem is that the extractText hangs the UI.
Looking at the Java code:
Thread t = new Thread(new Runnable() {
public void run() {
baseApi.setImage(tempFile);
recognizedText[0] = baseApi.getUTF8Text();
baseApi.end();
}
});
t.start();
try { t.join(); } catch (InterruptedException e) { e.printStackTrace(); }
result.success(recognizedText[0]);
I can see that it is running on a new thread, so I expect it not to hang the app, but it still does.
I found this example:
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
// Call the desired channel message here.
baseApi.setImage(tempFile);
recognizedText[0] = baseApi.getHOCRText(0);
baseApi.end();
result.success(recognizedText[0]);
}
});
from https://flutter.dev/docs/development/platform-integration/platform-channels#channels-and-platform-threading
but it also hangs the UI.
The docs also say
**Channels and Platform Threading**
Invoke all channel methods on the platform’s main thread when writing code on the platform side.
Can someone clarify this sentence?
According to Richard Heap answer, I tried to call a method from native to dart, passing the result:
Dart side:
_channel.setMethodCallHandler((call) {
print(call);
switch (call.method) {
case "extractTextResult":
final String result = call.arguments;
print(result);
}
var t;
return t;
});
Java side:
channel.invokeMethod("extractTextResult","hello");
if I call this method from the main thread, this works fine, but then the thread is blocking.
If I do
Thread t = new Thread(new Runnable() {
public void run() {
channel.invokeMethod("extractTextResult","test1231231");
}
});
t.start();
result.success("tst"); // return immediately
Then the app crashes with the following message:
I also tried:
Thread t = new Thread(new Runnable() {
public void run() {
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
// Call the desired channel message here.
baseApi.setImage(tempFile);
recognizedText[0] = baseApi.getHOCRText(0);
baseApi.end();
result.success(recognizedText[0]);
// channel.invokeMethod("extractTextResult", "test1231231");
}
});
}
});
t.start();
result.success("tst");
which is what I understand that Richard Heap last comment meant, but It still hangs the ui.
I had the same Issue and fixed it with a MethodCallWrapper in TesseractOcrPlugin.java
This Code works for me (no Dart-code change is needed):
package io.paratoner.tesseract_ocr;
import com.googlecode.tesseract.android.TessBaseAPI;
import android.os.Handler;
import android.os.Looper;
import android.os.AsyncTask;
import java.io.File;
import io.flutter.plugin.common.MethodCall;
import io.flutter.plugin.common.MethodChannel;
import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
import io.flutter.plugin.common.MethodChannel.Result;
import io.flutter.plugin.common.PluginRegistry.Registrar;
/** TesseractOcrPlugin */
public class TesseractOcrPlugin implements MethodCallHandler {
private static final int DEFAULT_PAGE_SEG_MODE = TessBaseAPI.PageSegMode.PSM_SINGLE_BLOCK;
/** Plugin registration. */
public static void registerWith(Registrar registrar) {
final MethodChannel channel = new MethodChannel(registrar.messenger(), "tesseract_ocr");
channel.setMethodCallHandler(new TesseractOcrPlugin());
}
// MethodChannel.Result wrapper that responds on the platform thread.
private static class MethodResultWrapper implements Result {
private Result methodResult;
private Handler handler;
MethodResultWrapper(Result result) {
methodResult = result;
handler = new Handler(Looper.getMainLooper());
}
#Override
public void success(final Object result) {
handler.post(new Runnable() {
#Override
public void run() {
methodResult.success(result);
}
});
}
#Override
public void error(final String errorCode, final String errorMessage, final Object errorDetails) {
handler.post(new Runnable() {
#Override
public void run() {
methodResult.error(errorCode, errorMessage, errorDetails);
}
});
}
#Override
public void notImplemented() {
handler.post(new Runnable() {
#Override
public void run() {
methodResult.notImplemented();
}
});
}
}
#Override
public void onMethodCall(MethodCall call, Result rawResult) {
Result result = new MethodResultWrapper(rawResult);
if (call.method.equals("extractText")) {
final String tessDataPath = call.argument("tessData");
final String imagePath = call.argument("imagePath");
String DEFAULT_LANGUAGE = "eng";
if (call.argument("language") != null) {
DEFAULT_LANGUAGE = call.argument("language");
}
calculateResult(tessDataPath, imagePath, DEFAULT_LANGUAGE, result);
} else {
result.notImplemented();
}
}
private void calculateResult(final String tessDataPath, final String imagePath, final String language,
final Result result) {
new AsyncTask<Void, Void, Void>() {
#Override
protected Void doInBackground(Void... params) {
final String[] recognizedText = new String[1];
final TessBaseAPI baseApi = new TessBaseAPI();
baseApi.init(tessDataPath, language);
final File tempFile = new File(imagePath);
baseApi.setPageSegMode(DEFAULT_PAGE_SEG_MODE);
baseApi.setImage(tempFile);
recognizedText[0] = baseApi.getUTF8Text();
baseApi.end();
result.success(recognizedText[0]);
return null;
}
#Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
}
}.execute();
}
}
By using join you're making the main thread wait for the background thread, blocking it. You have to remove the join and return a result immediately.
So, how do you return the ocr result, which won't be available immediately. When it becomes available, you then call a method from native to dart, passing the result. At the dart end, you then handle the result as any async event.
The point of the last paragraph of your question is that your result will become available on your background thread, so you'd want to call the native to dart method there. You can't. You have to post the method call code to the main looper - you already show some code for posting to the main looper which you can use as an example.
Based on Richard Heap answer I came up with this:
Dart code:
_channel.setMethodCallHandler((call) {
switch (call.method) {
case "extractTextResult":
final String result = call.arguments;
print(result);
}
var t;
return t;
});
Java code:
Thread t = new Thread(new Runnable() {
public void run() {
baseApi.setImage(tempFile);
recognizedText[0] = baseApi.getHOCRText(0);
baseApi.end();
new Handler(Looper.getMainLooper()).post(new Runnable() {
#Override
public void run() {
channel.invokeMethod("extractTextResult", recognizedText[0]);
}
});
}
});
t.start();
result.success("tst");
explain:
This code will run the Java extractText in a separate thread, and when the result is ready it will hopp back to the ui thread with the call to Looper.getMainLooper() which will then send the message back to the Dart side which must receive the message on the ui thread, which is what this message means:
**Channels and Platform Threading**
Invoke all channel methods on the platform’s main thread when writing code on the platform side.
NOTE on the Dart side, this is still incomplete example since you then need to report to the ui that a message received, this can be done with a Completer, which is used to create and complete a future
At the end of your method channel just return the response back to dart side
Add this line at the end of method channel result.success(true)
full example
override fun configureFlutterEngine(#NonNull flutterEngine: FlutterEngine) {
super.configureFlutterEngine(flutterEngine)
MethodChannel(
flutterEngine.dartExecutor.binaryMessenger,
"method-channel"
).setMethodCallHandler { call, result ->
if (call.method == "getFirebaseAppCheckDebugToken") {
...
result.success(true) // just add this line
}
}
}```
How to generate extent report for cucumber + testng framework in such a way that on each scenario failure I can get the screen shot captured, without repeating the code with every scenario in step definition file
I have setup the Testing framework using Cucumber+Testng. However, I need extent reporting but not sure how to achieve it through testNG runner class without actually repeating the code with every scenario of step definition. So the idea is to write code in one place just like using cucumber hooks which will run for each and every scenario.
I Have already tried the approach with TestNG listener with Extent report but with this the drawback is I have to write the code every time for each and every scenario. LIke below I have ITestListnerImpl.java, ExtentReportListner and YouTubeChannelValidationStepDef where for each scenario I have to repeat the loginfo and screencapture methods
Code: ItestListerner.java
package com.testuatomation.Listeners;
import org.testng.ITestContext;
import org.testng.ITestListener;
import org.testng.ITestResult;
import com.aventstack.extentreports.ExtentReports;
public class ITestListenerImpl extends ExtentReportListener implements ITestListener {
private static ExtentReports extent;
#Override
public void onFinish(ITestContext arg0) {
// TODO Auto-generated method stub
extent.flush();
System.out.println("Execution completed on UAT env ......");
}
#Override
public void onStart(ITestContext arg0) {
// TODO Auto-generated method stub
extent = setUp();
System.out.println("Execution started on UAT env ......");
}
#Override
public void onTestFailedButWithinSuccessPercentage(ITestResult arg0){
// TODO Auto-generated method stub
}
#Override
public void onTestFailure(ITestResult arg0) {
// TODO Auto-generated method stub
System.out.println("FAILURE");
}
#Override
public void onTestSkipped(ITestResult arg0) {
System.out.println("SKIP");
}
#Override
public void onTestStart(ITestResult arg0) {
System.out.println("STARTED");
}
#Override
public void onTestSuccess(ITestResult arg0) {
// TODO Auto-generated method stub
System.out.println("PASS-----");
}
}
ExtentReportListener. java
package com.testuatomation.Listeners;
import java.io.File;
import java.io.IOException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.apache.commons.io.FileUtils;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebDriver;
import com.aventstack.extentreports.ExtentReports;
import com.aventstack.extentreports.ExtentTest;
import com.aventstack.extentreports.markuputils.ExtentColor;
import com.aventstack.extentreports.markuputils.MarkupHelper;
import com.aventstack.extentreports.reporter.ExtentHtmlReporter;
import com.aventstack.extentreports.reporter.configuration.Theme;
public class ExtentReportListener {
public static ExtentHtmlReporter report = null;
public static ExtentReports extent = null;
public static ExtentTest test = null;
public static ExtentReports setUp() {
String reportLocation = "./Reports/Extent_Report.html";
report = new ExtentHtmlReporter(reportLocation);
report.config().setDocumentTitle("Automation Test Report");
report.config().setReportName("Automation Test Report");
report.config().setTheme(Theme.STANDARD);
System.out.println("Extent Report location initialized . . .");
report.start();
extent = new ExtentReports();
extent.attachReporter(report);
extent.setSystemInfo("Application", "Youtube");
extent.setSystemInfo("Operating System", System.getProperty("os.name"));
extent.setSystemInfo("User Name", System.getProperty("user.name"));
System.out.println("System Info. set in Extent Report");
return extent;
}
public static void testStepHandle(String teststatus,WebDriver driver,ExtentTest extenttest,Throwable throwable) {
switch (teststatus) {
case "FAIL":
extenttest.fail(MarkupHelper.createLabel("Test Case is Failed : ", ExtentColor.RED));
extenttest.error(throwable.fillInStackTrace());
try {
extenttest.addScreenCaptureFromPath(captureScreenShot(driver));
} catch (IOException e) {
e.printStackTrace();
}
if (driver != null) {
driver.quit();
}
break;
case "PASS":
extenttest.pass(MarkupHelper.createLabel("Test Case is Passed : ", ExtentColor.GREEN));
break;
default:
break;
}
}
public static String captureScreenShot(WebDriver driver) throws IOException {
TakesScreenshot screen = (TakesScreenshot) driver;
File src = screen.getScreenshotAs(OutputType.FILE);
String dest = "C:\\Users\\Prateek.Nehra\\workspace\\SeleniumCucumberBDDFramework\\screenshots\\" + getcurrentdateandtime() + ".png";
File target = new File(dest);
FileUtils.copyFile(src, target);
return dest;
}
private static String getcurrentdateandtime() {
String str = null;
try {
DateFormat dateFormat = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss:SSS");
Date date = new Date();
str = dateFormat.format(date);
str = str.replace(" ", "").replaceAll("/", "").replaceAll(":", "");
} catch (Exception e) {
}
return str;
}
}
YoutubeChannelValidationsStepDef.java
package com.testautomation.StepDef;
import java.util.Properties;
import org.openqa.selenium.WebDriver;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.aventstack.extentreports.ExtentTest;
import com.aventstack.extentreports.GherkinKeyword;
import com.aventstack.extentreports.gherkin.model.Feature;
import com.aventstack.extentreports.gherkin.model.Scenario;
import com.testuatomation.Listeners.ExtentReportListener;
import com.testautomation.PageObjects.YoutubeChannelPage;
import com.testautomation.PageObjects.YoutubeResultPage;
import com.testautomation.PageObjects.YoutubeSearchPage;
import com.testautomation.Utility.BrowserUtility;
import com.testautomation.Utility.PropertiesFileReader;
import cucumber.api.java.After;
import cucumber.api.java.Before;
import cucumber.api.java.en.Given;
import cucumber.api.java.en.Then;
import cucumber.api.java.en.When;
public class YoutubeChannelValidationsStepDef extends ExtentReportListener
{
PropertiesFileReader obj= new PropertiesFileReader();
private WebDriver driver;
#Given("^Open Chrome browser with URL$")
public void open_Chrome_browser_with_URL() throws Throwable
{
ExtentTest logInfo=null;
try {
test = extent.createTest(Feature.class, "Youtube channel name validation");
test=test.createNode(Scenario.class, "Youtube channel name validations");
logInfo=test.createNode(new GherkinKeyword("Given"), "open_Chrome_browser_with_URL");
Properties properties=obj.getProperty();
driver=BrowserUtility.OpenBrowser(driver, properties.getProperty("browser.name"), properties.getProperty("browser.baseURL"));
logInfo.pass("Opened chrome browser and entered url");
logInfo.addScreenCaptureFromPath(captureScreenShot(driver));
} catch (AssertionError | Exception e) {
testStepHandle("FAIL",driver,logInfo,e);
}
}
#When("^Search selenium tutorial$")
public void search_selenium_tutorial() throws Throwable
{
ExtentTest logInfo=null;
try {
logInfo=test.createNode(new GherkinKeyword("When"), "search_selenium_tutorial");
new YoutubeSearchPage(driver).NavigateToResultPage("selenium by bakkappa n");
logInfo.pass("Searching selenium tutorial");
logInfo.addScreenCaptureFromPath(captureScreenShot(driver));
} catch (AssertionError | Exception e) {
testStepHandle("FAIL",driver,logInfo,e);
}
}
#When("^Search selenium tutorial \"([^\"]*)\"$")
public void search_selenium_tutorial(String searchString) throws Throwable
{
new YoutubeSearchPage(driver).NavigateToResultPage(searchString);
}
#When("^Click on channel name$")
public void click_on_channel_name() throws Throwable
{
ExtentTest logInfo=null;
try {
logInfo=test.createNode(new GherkinKeyword("When"), "click_on_channel_name");
new YoutubeResultPage(driver).NavigateToChannel();
logInfo.pass("Clicked on the channel name");
logInfo.addScreenCaptureFromPath(captureScreenShot(driver));
} catch (AssertionError | Exception e) {
testStepHandle("FAIL",driver,logInfo,e);
}
}
#Then("^Validate channel name$")
public void validate_channel_name() throws Throwable
{
ExtentTest logInfo=null;
try {
logInfo=test.createNode(new GherkinKeyword("Then"), "validate_channel_name");
String expectedChannelName="1Selenium Java TestNG Tutorials - Bakkappa N - YouTube";
String actualChannelName=new YoutubeChannelPage(driver).getTitle();
Assert.assertEquals(actualChannelName, expectedChannelName,"Channel names are not matching"); //
logInfo.pass("Validated channel title");
logInfo.addScreenCaptureFromPath(captureScreenShot(driver));
System.out.println("closing browser");
driver.quit();
} catch (AssertionError | Exception e) {
testStepHandle("FAIL",driver,logInfo,e);
}
}
}
Your lofInfo is null, should be something like this
#Then("Open Chrome browser with URL")
public void open_Chrome_browser_with_URL() {
try {
logInfo = test.createNode(new GherkinKeyword("Then"), "open_Chrome_browser_with_URL");
//YOUR CODE HERE
logInfo.pass("Chrome opens URL");
}
catch (AssertionError | Exception e) {testStepHandle("FAIL", d, logInfo, e);
}
}
I encountered a strange problem while using ExecutorService to execute a Callable in static block. let's see the complete code directly as below.
package com.acme;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
public class App {
private static int data = 0;
static {
ExecutorService executor = Executors.newFixedThreadPool(1);
Future<String> future = executor.submit(new Callable<String>() {
#Override
public String call() throws Exception {
System.out.println("" + data);
return "hello";
}
});
}
public static void main(String[] args) {
System.out.println("enter main scope");
}
}
Run the main method, the result is presented as below screenshot.
enter image description here
However, if I add some business code as below, nothing is printed in the console.
public class App {
private static int data = 0;
static {
ExecutorService executor = Executors.newFixedThreadPool(1);
Future<String> future = executor.submit(new Callable<String>() {
#Override
public String call() throws Exception {
System.out.println("" + data);
return "hello";
}
});
try {
future.get();
} catch (InterruptedException e) {
e.printStackTrace();
} catch (ExecutionException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
System.out.println("enter main scope");
}
}
Anyone can provide some help about this issue? more details are preciated.
As you made executor code run in static block which force the code to run even before App.class context is full created (i.e class not fully loaded in memory or you can say now "data" variable is not in memory ).
Basically when your call method get called through executor its(thread) trying to find the variable "data" in App.class but it might not be loaded till now, this is also making thread run infinite.
Solution :
Run the executor in main block but still there is a issue ,suppose if for some reason (business logic) the App.class get unloaded you will be again stuck with a infinitely running thread that is finding "data".
Make the data variable "final", then you can put your code either is static block or static method (Ex. main). As for final variable a separate copy is maintained and has issue of class loading or unloading above issue will not come.
I am a Java programmer trying to learn groovy. Closures are a bit confusing for me at the moment.
Could I have some help to understand how I can use a closure to replace the abstract code I have below. I'm thinking a function defined as a variable or something like that however I can't crack it yet.
//MY ABSTRACT CLASS
public abstract class AbstractResource {
protected StreamingOutput activityStreamingOutput(serviceResponse){
return new StreamingOutput() {
#Override
public void write(OutputStream os) throws IOException,
WebApplicationException {
def writer = new BufferedWriter(new OutputStreamWriter(os));
writer.write(serviceResponse);
writer.flush();
}
}
}
}
// MY CHILD CLASS
class MaintanenceResourceImpl extends AbstractResource{
public void doSomething(Reader reader) throws Exception {
// I'D LIKE TO DO SOMETHING GROOVYISH HERE
def StreamingOutput = activityStreamingOutput(serviceResponse)
}
thanks
There's not much you can do here (w/o knowing other details), but this:
abstract class AbstractResource {
Closure activityStreamingOutput(serviceResponse){
{ OutputStream os ->
os.withWriter{ it << serviceResponse }
}
}
}
class MaintanenceResourceImpl extends AbstractResource {
void doSomething(Reader reader) throws Exception {
activityStreamingOutput(serviceResponse).call someOutputStream
}
I am able to run the serenity test cases by using gradle. I use the command $ gradle clean test aggregate. Reports are also getting generated however when I click on the links provided in the Reports it fails to navigate and gives an error message. I have created the package structure as mentioned in the link below.
http://thucydides.info/docs/articles/an-introduction-to-serenity-bdd-with-cucumber.html
However still I'm not able to resolve this. Below are my Runner, Step definition and repository class.
Runner Class:
#RunWith(CucumberWithSerenity.class)
#CucumberOptions(features = "src/test/resources/features/LoginFeatureSerenity.feature")
public class TestRunnerSerenity {
}
Step Definition class:
package org.gradle.stepdef;
public class LoginStepDefSerenity {
#Managed
public WebDriver driver;
#ManagedPages
public Pages pages;
LoginPageRepository page;
// Scenario 1: Verify New Serenity Test Case
#Step
#Given("^User is on LoginSerenity Page$")
public void user_is_on_LoginSerenity_Page() throws Throwable {
page.open();
}
#Step
#When("^User enters valid Serenity credentials$")
public void user_enters_valid_Serenity_credentials() throws Throwable {
page.setusername("kaustubhsaxena");
page.setpassword("saxenasdhfghjfg");
page.loginButton.click();
}
#Step
#Then("^User is able to login Serenity$")
public void user_is_able_to_login_Serenity() throws Throwable {
assertThat(page.loginValidationMessage.getText(), is("Login failed"));
// page.logoutButon.click();
driver.close();
}
}
Repository Class
#DefaultUrl("http://localhost:8000/app/#/login")
public class LoginPageRepository extends PageObject {
#FindBy(id = "username")
protected WebElement username;
public void setusername(String value) {
element(username).type(value);
}
public WebElementFacade username() {
return element(username);
}
// Fields for Password
#FindBy(id = "password")
protected WebElement password;
public void setpassword(String value) {
element(password).type(value);
}
public WebElementFacade password() {
return element(password);
}
}
Can you please help me on this. Thanks in advance
Fortunately I got the solution of this.
In the build.gradle below plugin needs to be added so that it will handle the reporting part.
apply plugin: 'com.jfrog.bintray'
Thanks for your help on this.