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package com.vaadin.tests.components.textarea;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
import com.vaadin.testbench.elements.ButtonElement;
import com.vaadin.testbench.elements.PanelElement;
import com.vaadin.testbench.elements.TextAreaElement;
import com.vaadin.tests.tb3.MultiBrowserTest;
public class TextAreaSetRowsTest extends MultiBrowserTest {
private double rowHeight;
private int scrollbarHeight;
private int bordersAndPadding = 14; // fixed by Valo theme
@Test
public void testSetRows() {
openTestURL();
waitUntilLoadingIndicatorNotVisible();
// calculate scrollbar height for comparison
PanelElement panel = $(PanelElement.class).first();
int panelHeight = panel.getSize().getHeight();
// add scrollbar
$(ButtonElement.class).caption(TextAreaSetRows.SCROLLB).first().click();
waitUntilLoadingIndicatorNotVisible();
scrollbarHeight = panel.getSize().getHeight() - panelHeight;
assertGreater("Unexpected comparison scrollbar height", scrollbarHeight,
0);
TextAreaElement textArea = $(TextAreaElement.class).first();
int height5 = textArea.getSize().getHeight();
// calculate height of a single row
rowHeight = (height5 - bordersAndPadding) / 5d;
assertEquals("Unexpected initial height,", getExpected(5), height5, 1);
$(ButtonElement.class).caption(TextAreaSetRows.ROWS_0).first().click();
waitUntilLoadingIndicatorNotVisible();
int height0 = textArea.getSize().getHeight();
assertEquals("Unexpected 0 rows height,", getExpected(0), height0, 1);
$(ButtonElement.class).caption(TextAreaSetRows.ROWS_4).first().click();
waitUntilLoadingIndicatorNotVisible();
int height4 = textArea.getSize().getHeight();
assertEquals("Unexpected 4 rows height,", getExpected(4), height4, 1);
$(ButtonElement.class).caption(TextAreaSetRows.ROWS_2).first().click();
waitUntilLoadingIndicatorNotVisible();
int height2 = textArea.getSize().getHeight();
assertEquals("Unexpected 2 rows height,", getExpected(2), height2, 1);
$(ButtonElement.class).caption(TextAreaSetRows.ROWS_1).first().click();
waitUntilLoadingIndicatorNotVisible();
int height1 = textArea.getSize().getHeight();
assertEquals("Unexpected 1 rows height,", getExpected(1), height1, 1);
assertEquals("Height mismatch for 0 and 1 rows", height0, height1, 1);
// set fixed height to 0 (does not affect borders and padding)
$(ButtonElement.class).caption(TextAreaSetRows.HEIGHT0).first().click();
waitUntilLoadingIndicatorNotVisible();
int heightFixed = textArea.getSize().getHeight();
assertEquals("Unexpected fixed height,", bordersAndPadding, heightFixed,
1);
// remove fixed height, should return to height by rows
$(ButtonElement.class).caption(TextAreaSetRows.HEIGHTR).first().click();
waitUntilLoadingIndicatorNotVisible();
int heightReset = textArea.getSize().getHeight();
assertEquals("Unexpected 1 rows height,", height1, heightReset, 1);
$(ButtonElement.class).caption(TextAreaSetRows.ROWS_3).first().click();
waitUntilLoadingIndicatorNotVisible();
int height3 = textArea.getSize().getHeight();
assertEquals("Unexpected 3 rows height,", getExpected(3), height3, 1);
// toggle off word wrap
$(ButtonElement.class).caption(TextAreaSetRows.WWRAP).first().click();
waitUntilLoadingIndicatorNotVisible();
int newHeight3 = textArea.getSize().getHeight();
// expected height to increase even without a scrollbar
assertGreater("Unexpected 3 rows height without word wrap (short),",
newHeight3, height3);
// trigger horizontal scroll bar
$(ButtonElement.class).caption(TextAreaSetRows.LONGS).first().click();
waitUntilLoadingIndicatorNotVisible();
// height should not have changed
assertEquals("Unexpected 3 rows height without word wrap (long),",
newHeight3, textArea.getSize().getHeight(), 1);
// switch to longer contents with no breaks
$(ButtonElement.class).caption(TextAreaSetRows.LONGN).first().click();
waitUntilLoadingIndicatorNotVisible();
// height should not have changed
assertEquals(
"Unexpected 3 rows height without word wrap (long without breaks),",
newHeight3, textArea.getSize().getHeight(), 1);
// ensure that the height difference to original matches a scrollbar
// height, use a Panel's scrollbar as a comparison
assertEquals("Unexpected textarea scrollbar height,", scrollbarHeight,
newHeight3 - height3, 1);
// toggle word wrap back on
$(ButtonElement.class).caption(TextAreaSetRows.WWRAP).first().click();
waitUntilLoadingIndicatorNotVisible();
// height should have reverted to what it was before removing wrap
assertEquals(
"Unexpected 3 rows height with word wrap (long without breaks),",
height3, textArea.getSize().getHeight(), 1);
}
/**
* Calculates the expected height when horizontal scrollbar isn't possible.
*
* @param rows
* how many rows are displayed
* @return expected text area height
*/
private double getExpected(int rows) {
// minimum row count is one
return bordersAndPadding + (Math.max(1, rows) * rowHeight);
}
}
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