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Fluent interface for functional GUI testing
/**
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
* Copyright 2012-2015 the original author or authors.
*/
package org.assertj.swing.driver;
import static java.lang.Math.max;
import static java.lang.Math.min;
import static java.lang.String.valueOf;
import static javax.swing.text.DefaultEditorKit.deletePrevCharAction;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.util.Preconditions.checkNotNull;
import static org.assertj.core.util.Preconditions.checkNotNullOrEmpty;
import static org.assertj.core.util.Strings.concat;
import static org.assertj.core.util.Strings.isNullOrEmpty;
import static org.assertj.core.util.Strings.quote;
import static org.assertj.swing.driver.ComponentPreconditions.checkEnabledAndShowing;
import static org.assertj.swing.driver.JTextComponentEditableQuery.isEditable;
import static org.assertj.swing.driver.JTextComponentSelectAllTask.selectAllText;
import static org.assertj.swing.driver.JTextComponentSelectTextTask.selectTextInRange;
import static org.assertj.swing.driver.JTextComponentSetTextTask.setTextIn;
import static org.assertj.swing.driver.PointAndParentForScrollingJTextFieldQuery.pointAndParentForScrolling;
import static org.assertj.swing.driver.TextAssert.verifyThat;
import static org.assertj.swing.edt.GuiActionRunner.execute;
import static org.assertj.swing.exception.ActionFailedException.actionFailure;
import static org.assertj.swing.format.Formatting.format;
import java.awt.Container;
import java.awt.Point;
import java.awt.Rectangle;
import java.util.regex.Pattern;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.swing.CellRendererPane;
import javax.swing.JComponent;
import javax.swing.JTextField;
import javax.swing.text.BadLocationException;
import javax.swing.text.JTextComponent;
import org.assertj.core.description.Description;
import org.assertj.swing.annotation.RunsInCurrentThread;
import org.assertj.swing.annotation.RunsInEDT;
import org.assertj.swing.core.Robot;
import org.assertj.swing.edt.GuiQuery;
import org.assertj.swing.edt.GuiTask;
import org.assertj.swing.exception.ActionFailedException;
import org.assertj.swing.internal.annotation.InternalApi;
import org.assertj.swing.util.Pair;
import org.assertj.swing.util.Platform;
/**
*
* Supports functional testing of {@code JTextComponent}s.
*
*
*
* Note: This class is intended for internal use only. Please use the classes in the package
* {@link org.assertj.swing.fixture} in your tests.
*
*
* @author Alex Ruiz
*/
@InternalApi
public class JTextComponentDriver extends JComponentDriver implements TextDisplayDriver {
private static final String EDITABLE_PROPERTY = "editable";
private static final String TEXT_PROPERTY = "text";
/**
* Creates a new {@link JTextComponentDriver}.
*
* @param robot the robot to use to simulate user input.
*/
public JTextComponentDriver(@Nonnull Robot robot) {
super(robot);
}
/**
* Deletes the text of the {@code JTextComponent}.
*
* @param textBox the target {@code JTextComponent}.
* @throws IllegalStateException if the {@code JTextComponent} is disabled.
* @throws IllegalStateException if the {@code JTextComponent} is not showing on the screen.
*/
@RunsInEDT
public void deleteText(@Nonnull JTextComponent textBox) {
selectAll(textBox);
invokeAction(textBox, deletePrevCharAction);
}
/**
* Types the given text into the {@code JTextComponent}, replacing any existing text already there.
*
* @param textBox the target {@code JTextComponent}.
* @param text the text to enter.
* @throws NullPointerException if the text to enter is {@code null}.
* @throws IllegalArgumentException if the text to enter is empty.
* @throws IllegalStateException if the {@code JTextComponent} is disabled.
* @throws IllegalStateException if the {@code JTextComponent} is not showing on the screen.
*/
@RunsInEDT
public void replaceText(@Nonnull JTextComponent textBox, @Nonnull String text) {
checkNotNullOrEmpty(text);
selectAll(textBox);
enterText(textBox, text);
}
/**
* Selects the text in the {@code JTextComponent}.
*
* @param textBox the target {@code JTextComponent}.
* @throws IllegalStateException if the {@code JTextComponent} is disabled.
* @throws IllegalStateException if the {@code JTextComponent} is not showing on the screen.
*/
@RunsInEDT
public void selectAll(@Nonnull JTextComponent textBox) {
checkStateAndScrollToPosition(textBox, 0);
selectAllText(textBox);
}
/**
* Types the given text into the {@code JTextComponent}.
*
* @param textBox the target {@code JTextComponent}.
* @param text the text to enter.
* @throws IllegalStateException if the {@code JTextComponent} is disabled.
* @throws IllegalStateException if the {@code JTextComponent} is not showing on the screen.
*/
@RunsInEDT
public void enterText(@Nonnull JTextComponent textBox, @Nonnull String text) {
focusAndWaitForFocusGain(textBox);
robot.enterText(text);
}
/**
*
* Sets the given text into the {@code JTextComponent}. Unlike {@link #enterText(JTextComponent, String)}, this method
* bypasses the event system and allows immediate updating on the underlying document model.
*
*
* Primarily desired for speeding up tests when precise user event fidelity isn't necessary.
*
*
* @param textBox the target {@code JTextComponent}.
* @param text the text to enter.
* @throws IllegalStateException if the {@code JTextComponent} is disabled.
* @throws IllegalStateException if the {@code JTextComponent} is not showing on the screen.
*/
@RunsInEDT
public void setText(@Nonnull JTextComponent textBox, @Nullable String text) {
focusAndWaitForFocusGain(textBox);
setTextIn(textBox, text);
robot.waitForIdle();
}
/**
* Select the given text range.
*
* @param textBox the target {@code JTextComponent}.
* @param text the text to select.
* @throws IllegalStateException if the {@code JTextComponent} is disabled.
* @throws IllegalStateException if the {@code JTextComponent} is not showing on the screen.
* @throws IllegalArgumentException if the {@code JTextComponent} does not contain the given text to select.
* @throws ActionFailedException if selecting the text fails.
*/
@RunsInEDT
public void selectText(@Nonnull JTextComponent textBox, @Nonnull String text) {
int indexFound = indexOfText(textBox, text);
if (indexFound == -1) {
throw new IllegalArgumentException(String.format("The text %s was not found", quote(text)));
}
selectText(textBox, indexFound, indexFound + text.length());
}
@RunsInEDT
private static int indexOfText(final @Nonnull JTextComponent textBox, final @Nonnull String text) {
Integer result = execute(new GuiQuery() {
@Override
protected Integer executeInEDT() {
checkEnabledAndShowing(textBox);
String actualText = textBox.getText();
if (isNullOrEmpty(actualText)) {
return -1;
}
return actualText.indexOf(text);
}
});
return checkNotNull(result);
}
/**
* Select the given text range.
*
* @param textBox the target {@code JTextComponent}.
* @param start the starting index of the selection.
* @param end the ending index of the selection.
* @throws IllegalStateException if the {@code JTextComponent} is disabled.
* @throws IllegalStateException if the {@code JTextComponent} is not showing on the screen.
* @throws ActionFailedException if selecting the text in the given range fails.
*/
@RunsInEDT
public void selectText(@Nonnull JTextComponent textBox, int start, int end) {
robot.moveMouse(textBox, checkStateAndScrollToPosition(textBox, start));
robot.moveMouse(textBox, scrollToPosition(textBox, end));
performAndValidateTextSelection(textBox, start, end);
}
@RunsInEDT
private static @Nonnull Point checkStateAndScrollToPosition(final @Nonnull JTextComponent textBox, final int index) {
Point result = execute(new GuiQuery() {
@Override
protected Point executeInEDT() {
checkEnabledAndShowing(textBox);
return scrollToVisible(textBox, index);
}
});
return checkNotNull(result);
}
@RunsInEDT
private static @Nonnull Point scrollToPosition(final @Nonnull JTextComponent textBox, final int index) {
Point result = execute(new GuiQuery() {
@Override
protected Point executeInEDT() {
return scrollToVisible(textBox, index);
}
});
return checkNotNull(result);
}
/**
* Move the pointer to the location of the given index. Takes care of auto-scrolling through text.
*
* @param textBox the target {@code JTextComponent}.
* @param index the given location.
* @return the position of the pointer after being moved.
* @throws ActionFailedException if it was not possible to scroll to the location of the given index.
*/
@RunsInCurrentThread
private static @Nonnull Point scrollToVisible(@Nonnull JTextComponent textBox, int index) {
Rectangle indexLocation = locationOf(textBox, index);
if (isRectangleVisible(textBox, indexLocation)) {
return centerOf(indexLocation);
}
scrollToVisible(textBox, indexLocation);
indexLocation = locationOf(textBox, index);
if (isRectangleVisible(textBox, indexLocation)) {
return centerOf(indexLocation);
}
String format = "Unable to make visible the location of the index <%d> by scrolling to the point <%s> on %s";
String msg = String.format(format, index, formatOriginOf(indexLocation), format(textBox));
throw actionFailure(msg);
}
@RunsInCurrentThread
private static @Nonnull Rectangle locationOf(@Nonnull JTextComponent textBox, int index) {
Rectangle r = null;
try {
r = textBox.modelToView(index);
} catch (BadLocationException e) {
throw cannotGetLocation(textBox, index);
}
if (r != null) {
if (Platform.isMacintosh() && r.y == -1) {
r.y = 0;
}
return r;
}
throw cannotGetLocation(textBox, index);
}
private static ActionFailedException cannotGetLocation(@Nonnull JTextComponent textBox, int index) {
String msg = String.format("Unable to get location for index <%d> in %s", index, format(textBox));
throw actionFailure(msg);
}
@RunsInCurrentThread
private static boolean isRectangleVisible(@Nonnull JTextComponent textBox, @Nonnull Rectangle r) {
Rectangle visible = textBox.getVisibleRect();
return visible.contains(r.x, r.y);
}
private static String formatOriginOf(Rectangle r) {
return concat(valueOf(r.x), ",", valueOf(r.y));
}
@RunsInCurrentThread
private static void scrollToVisible(@Nonnull JTextComponent textBox, @Nonnull Rectangle r) {
textBox.scrollRectToVisible(r);
if (isVisible(textBox, r)) {
return;
}
scrollToVisibleIfIsTextField(textBox, r);
}
@RunsInCurrentThread
private static void scrollToVisibleIfIsTextField(@Nonnull JTextComponent textBox, @Nonnull Rectangle r) {
if (!(textBox instanceof JTextField)) {
return;
}
Pair pointAndParent = pointAndParentForScrolling((JTextField) textBox);
Container parent = pointAndParent.second;
if (parent == null || parent instanceof CellRendererPane || !(parent instanceof JComponent)) {
return;
}
((JComponent) parent).scrollRectToVisible(addPointToRectangle(checkNotNull(pointAndParent.first), r));
}
private static @Nonnull Rectangle addPointToRectangle(@Nonnull Point p, @Nonnull Rectangle r) {
Rectangle destination = new Rectangle(r);
destination.x += p.x;
destination.y += p.y;
return destination;
}
private static @Nonnull Point centerOf(@Nonnull Rectangle r) {
return new Point(r.x + r.width / 2, r.y + r.height / 2);
}
@RunsInEDT
private static void performAndValidateTextSelection(final @Nonnull JTextComponent textBox, final int start,
final int end) {
execute(new GuiTask() {
@Override
protected void executeInEDT() {
selectTextInRange(textBox, start, end);
verifyTextWasSelected(textBox, start, end);
}
});
}
@RunsInCurrentThread
private static void verifyTextWasSelected(@Nonnull JTextComponent textBox, int start, int end) {
int actualStart = textBox.getSelectionStart();
int actualEnd = textBox.getSelectionEnd();
if (actualStart == min(start, end) && actualEnd == max(start, end)) {
return;
}
String format = "Unable to select text uses indices <%d> and <%d>, current selection starts at <%d> and ends at <%d>";
String msg = String.format(format, start, end, actualStart, actualEnd);
throw actionFailure(msg);
}
/**
* Asserts that the text in the given {@code JTextComponent} is equal to the specified value.
*
* @param textBox the given {@code JTextComponent}.
* @param expected the text to match. It can be a regular expression pattern.
* @throws AssertionError if the text of the {@code JTextComponent} is not equal to the given one.
*/
@RunsInEDT
@Override
public void requireText(@Nonnull JTextComponent textBox, @Nullable String expected) {
verifyThat(textOf(textBox)).as(textProperty(textBox)).isEqualOrMatches(expected);
}
/**
* Asserts that the text in the given {@code JTextComponent} matches the given regular expression pattern.
*
* @param textBox the given {@code JTextComponent}.
* @param pattern the regular expression pattern to match.
* @throws NullPointerException if the given regular expression pattern is {@code null}.
* @throws AssertionError if the text of the {@code JTextComponent} is not equal to the given one.
*/
@Override
@RunsInEDT
public void requireText(@Nonnull JTextComponent textBox, @Nonnull Pattern pattern) {
verifyThat(textOf(textBox)).as(textProperty(textBox)).matches(pattern);
}
/**
* Asserts that the given {@code JTextComponent} is empty.
*
* @param textBox the given {@code JTextComponent}.
* @throws AssertionError if the {@code JTextComponent} is not empty.
*/
@RunsInEDT
public void requireEmpty(@Nonnull JTextComponent textBox) {
assertThat(textOf(textBox)).as(textProperty(textBox)).isEmpty();
}
@RunsInEDT
private static @Nonnull Description textProperty(@Nonnull JTextComponent textBox) {
return propertyName(textBox, TEXT_PROPERTY);
}
/**
* Asserts that the given {@code JTextComponent} is editable.
*
* @param textBox the given {@code JTextComponent}.
* @throws AssertionError if the {@code JTextComponent} is not editable.
*/
@RunsInEDT
public void requireEditable(@Nonnull JTextComponent textBox) {
assertEditable(textBox, true);
}
/**
* Asserts that the given {@code JTextComponent} is not editable.
*
* @param textBox the given {@code JTextComponent}.
* @throws AssertionError if the {@code JTextComponent} is editable.
*/
@RunsInEDT
public void requireNotEditable(@Nonnull JTextComponent textBox) {
assertEditable(textBox, false);
}
@RunsInEDT
private void assertEditable(@Nonnull JTextComponent textBox, boolean editable) {
assertThat(isEditable(textBox)).as(editableProperty(textBox)).isEqualTo(editable);
}
@RunsInEDT
private static @Nonnull Description editableProperty(@Nonnull JTextComponent textBox) {
return propertyName(textBox, EDITABLE_PROPERTY);
}
/**
* Returns the text of the given {@code JTextComponent}.
*
* @param textBox the given {@code JTextComponent}.
* @return the text of the given {@code JTextComponent}.
*/
@RunsInEDT
@Override
public @Nullable String textOf(@Nonnull JTextComponent textBox) {
return JTextComponentTextQuery.textOf(textBox);
}
}