uitest/src/test/java/com/vaadin/tests/components/grid/GridRowHeightChangeTest.java


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package com.vaadin.tests.components.grid;

import static org.junit.Assert.assertEquals;

import java.util.Arrays;
import java.util.List;

import org.junit.Test;

import com.vaadin.testbench.By;
import com.vaadin.testbench.elements.GridElement;
import com.vaadin.testbench.elements.NativeSelectElement;
import com.vaadin.tests.tb3.MultiBrowserTest;

public class GridRowHeightChangeTest extends MultiBrowserTest {

    private final List<String> themes = Arrays.asList("valo", "reindeer",
            "runo", "chameleon", "base");

    @Override
    public void setup() throws Exception {
        super.setup();
        openTestURL();
    }

    @Test
    public void changeThemeAndMeasureGridHeight() {
        // Initial check
        verifyGridSize();

        for (String theme : themes) {
            // select theme
            $(NativeSelectElement.class).first().selectByText(theme);

            verifyGridSize();
        }
    }

    private void verifyGridSize() {
        GridElement grid = $(GridElement.class).first();

        int gridHeight = grid.getSize().getHeight();
        int tabsheetHeight = findElements(By.className("v-tabsheet-content"))
                .get(0).getSize().getHeight();

        assertEquals("Grid's visible height should be equal to Grid height",
                gridHeight, tabsheetHeight, 1);
    }
}