openide/plugins/ui-designer/testSrc/com/intellij/uiDesigner/binding/FormEnumUsageTest.java

// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.

package com.intellij.uiDesigner.binding;

import com.intellij.openapi.application.PluginPathManager;
import com.intellij.openapi.command.CommandProcessor;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.pom.java.LanguageLevel;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiEnumConstant;
import com.intellij.psi.PsiField;
import com.intellij.psi.search.ProjectScope;
import com.intellij.psi.search.searches.ReferencesSearch;
import com.intellij.testFramework.IdeaTestUtil;
import com.intellij.testFramework.JavaPsiTestCase;
import com.intellij.testFramework.PsiTestUtil;
import com.intellij.util.IncorrectOperationException;

public class FormEnumUsageTest extends JavaPsiTestCase {
  private VirtualFile myTestProjectRoot;

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    String root = PluginPathManager.getPluginHomePath("ui-designer") + "/testData/binding/" + getTestName(true);
    PsiTestUtil.removeAllRoots(myModule, IdeaTestUtil.getMockJdk17());
    myTestProjectRoot = createTestProjectStructure(root);
  }

  @Override protected void tearDown() throws Exception {
    myTestProjectRoot = null;
    super.tearDown();
  }

  public void testEnumUsage() throws IncorrectOperationException {
    IdeaTestUtil.setProjectLanguageLevel(myJavaFacade.getProject(), LanguageLevel.JDK_1_5);
    CommandProcessor.getInstance().executeCommand(myProject, () -> {
      try {
        createFile(myModule, myTestProjectRoot, "PropEnum.java", "public enum PropEnum { valueA, valueB }");
        createFile(myModule, myTestProjectRoot, "CustomComponent.java",
                   "public class CustomComponent extends JLabel { private PropEnum e; public PropEnum getE() { return e; } public void setE(E newE) { e = newE; } }");
      }
      catch (Exception e) {
        fail(e.getMessage());
      }
    }, "", null);

    PsiClass enumClass = myJavaFacade.findClass("PropEnum", ProjectScope.getAllScope(myProject));
    PsiField valueBField = enumClass.findFieldByName("valueB", false);
    assertNotNull(valueBField);
    assertTrue(valueBField instanceof PsiEnumConstant);
    final PsiClass componentClass = myJavaFacade.findClass("CustomComponent", ProjectScope.getAllScope(myProject));
    assertNotNull(componentClass);

    assertEquals(1, ReferencesSearch.search(componentClass).findAll().size());

    assertEquals(1, ReferencesSearch.search(valueBField).findAll().size());
  }

}