/*
* Copyright 2003-2016 JetBrains s.r.o.
*
* 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.
*/
package jetbrains.mps.nodeEditor.assist;
import jetbrains.mps.openapi.editor.menus.transformation.ActionItemBase;
import jetbrains.mps.openapi.editor.menus.transformation.SubMenu;
import jetbrains.mps.openapi.editor.menus.transformation.TransformationMenuItem;
import org.jetbrains.annotations.NotNull;
import org.junit.Test;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import static org.junit.Assert.assertEquals;
public class CanExecuteFilterTest {
@Test
public void treatsExceptionFromCanExecuteAsReturningFalse() {
List<TransformationMenuItem> filteredItems = newFilter().apply(Collections.singletonList(new ActionItemBase() {
@Override
public boolean canExecute(@NotNull String pattern) {
throw new RuntimeException("exception in canExecute() that should be caught and treated as returning false");
}
}));
assertEquals(Collections.emptyList(), filteredItems);
}
@Test
public void zeroItems() throws Exception {
List<TransformationMenuItem> filteredItems = newFilter().apply(Collections.emptyList());
assertEquals(Collections.emptyList(), filteredItems);
}
@Test
public void oneExecutableItem() throws Exception {
TransformationMenuItem executableMenuItem = new TestActionItem(true);
CanExecuteFilter filter = newFilter();
List<TransformationMenuItem> filteredItems = filter.apply(Collections.singletonList(executableMenuItem));
assertEquals(Collections.singletonList(executableMenuItem), filteredItems);
}
@NotNull
private CanExecuteFilter newFilter() {
return new CanExecuteFilter();
}
@Test
public void oneNonExecutableItem() throws Exception {
TransformationMenuItem nonExecutableMenuItem = new TestActionItem(false);
CanExecuteFilter filter = newFilter();
List<TransformationMenuItem> filteredItems = filter.apply(Collections.singletonList(nonExecutableMenuItem));
assertEquals(Collections.emptyList(), filteredItems);
}
@Test
public void submenuWithAllNonExecutableItems() throws Exception {
TransformationMenuItem subMenu = new SubMenu("submenu", Collections.singletonList(new TestActionItem(false)));
CanExecuteFilter filter = newFilter();
List<TransformationMenuItem> filteredItems = filter.apply(Collections.singletonList(subMenu));
assertEquals(Collections.emptyList(), filteredItems);
}
@Test
public void submenuWithSubmenuWithAllNonExecutableItems() {
List<TransformationMenuItem> filteredItems = newFilter().apply(Collections.singletonList(
new SubMenu("top", Collections.singletonList(
new SubMenu("nested", Collections.singletonList(new TestActionItem(false)))))));
assertEquals(Collections.emptyList(), filteredItems);
}
@Test
public void submenuWithSomeNonExecutableItems() {
TestActionItem executableItem = new TestActionItem(true);
TestActionItem nonExecutableItem = new TestActionItem(false);
CanExecuteFilter filter = newFilter();
List<TransformationMenuItem> filteredItems = filter.apply(Collections.singletonList(
new SubMenu("submenu", Arrays.asList(executableItem, nonExecutableItem, executableItem, nonExecutableItem))));
assertEquals(Collections.singletonList(new SubMenu("submenu", Arrays.asList(executableItem, executableItem))), filteredItems);
}
}