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package com.vaadin.tests.application;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.junit.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebElement;
import com.vaadin.testbench.elements.ButtonElement;
import com.vaadin.testbench.parallel.TestCategory;
import com.vaadin.tests.tb3.CustomTestBenchCommandExecutor;
import com.vaadin.tests.tb3.MultiBrowserThemeTestWithProxy;
@TestCategory("communication")
public class ReconnectDialogThemeTest extends MultiBrowserThemeTestWithProxy {
static By reconnectDialogBy = By.className("v-reconnect-dialog");
@Test
public void reconnectDialogTheme() throws IOException {
openTestURL();
ButtonElement helloButton = $(ButtonElement.class).caption("Say hello")
.first();
helloButton.click();
assertEquals("1. Hello from the server", getLogRow(0));
disconnectProxy();
helloButton.click();
testBench().disableWaitForVaadin();
waitUntil(driver -> isElementPresent(reconnectDialogBy));
WebElement dialog = findElement(reconnectDialogBy);
WebElement spinner = dialog.findElement(By.className("spinner"));
// Hide spinner to make screenshot stable
executeScript("arguments[0].style.visibility='hidden';", spinner);
compareScreen("onscreen-without-spinner");
// Show spinner and make sure it is shown by comparing to the screenshot
// without a spinner
executeScript("arguments[0].style.visibility='visible';", spinner);
BufferedImage fullScreen = ImageIO
.read(new ByteArrayInputStream(((TakesScreenshot) getDriver())
.getScreenshotAs(OutputType.BYTES)));
BufferedImage spinnerImage = CustomTestBenchCommandExecutor
.cropToElement(spinner, fullScreen);
assertHasManyColors("Spinner is not shown", spinnerImage);
}
@Test
public void gaveUpTheme() throws IOException {
openTestURL("reconnectAttempts=3");
waitUntil(input -> {
try {
return $(ButtonElement.class).first() != null;
} catch (Exception e) {
return false;
}
});
disconnectProxy();
$(ButtonElement.class).first().click();
waitForReconnectDialogWithText("Server connection lost.");
compareScreen("gaveupdialog");
}
private void waitForReconnectDialogWithText(final String text) {
waitUntil(input -> {
try {
final WebElement reconnectDialog = findElement(
ReconnectDialogThemeTest.reconnectDialogBy);
return reconnectDialog.findElement(By.className("text"))
.getText().equals(text);
} catch (Exception e) {
return false;
}
}, 10);
}
private void assertHasManyColors(String message,
BufferedImage spinnerImage) {
int backgroundColor = spinnerImage.getRGB(0, 0);
for (int x = 0; x < spinnerImage.getWidth(); x++) {
for (int y = 0; y < spinnerImage.getHeight(); y++) {
if (Math.abs(
spinnerImage.getRGB(x, y) - backgroundColor) > 50) {
return;
}
}
}
fail(message);
}
@Override
protected Class<?> getUIClass() {
return ReconnectDialogUI.class;
}
}
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