/*
* Copyright 2012-2014 Sergey Ignatov
*
* 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 org.intellij.erlang.eunit;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiDirectory;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiManager;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.util.containers.ContainerUtil;
import org.intellij.erlang.psi.ErlangFile;
import org.intellij.erlang.psi.ErlangFunction;
import org.intellij.erlang.psi.impl.ErlangPsiImplUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
public class ErlangUnitTestElementUtil {
private ErlangUnitTestElementUtil() {
}
@NotNull
public static Collection<ErlangFunction> findFunctionTestElements(@Nullable PsiElement element) {
if (element != null) {
PsiFile containingFile = element.getContainingFile();
if (getFileTestElement(containingFile) == null) {
return ContainerUtil.emptyList();
}
}
return ContainerUtil.createMaybeSingletonList(getZeroArityFunction(element));
}
public static Collection<ErlangFile> findFileTestElements(Project project, DataContext dataContext) {
VirtualFile[] selectedFiles = CommonDataKeys.VIRTUAL_FILE_ARRAY.getData(dataContext);
if (selectedFiles == null) return Collections.emptyList();
List<ErlangFile> testFiles = new ArrayList<ErlangFile>(selectedFiles.length);
PsiManager psiManager = PsiManager.getInstance(project);
for (VirtualFile file : selectedFiles) {
ContainerUtil.addIfNotNull(testFiles, getFileTestElement(psiManager.findFile(file)));
PsiDirectory directory = psiManager.findDirectory(file);
if (directory != null) {
addTestFilesFromDirectory(testFiles, directory);
}
}
return testFiles;
}
@Nullable
public static ErlangFunction getZeroArityFunction(@Nullable PsiElement psiElement) {
ErlangFunction function = psiElement instanceof ErlangFunction ? (ErlangFunction)psiElement : PsiTreeUtil.getParentOfType(psiElement, ErlangFunction.class);
int arity = function == null ? -1 : function.getArity();
return 0 == arity ? function : null;
}
private static void addTestFilesFromDirectory(List<ErlangFile> files, PsiDirectory directory) {
for (PsiFile psiFile : directory.getFiles()) {
ContainerUtil.addIfNotNull(files, getFileTestElement(psiFile));
}
for (PsiDirectory psiDirectory : directory.getSubdirectories()) {
addTestFilesFromDirectory(files, psiDirectory);
}
}
@Nullable
private static ErlangFile getFileTestElement(@Nullable PsiFile psiFile) {
return psiFile instanceof ErlangFile && ErlangPsiImplUtil.isEunitImported((ErlangFile) psiFile) ? (ErlangFile) psiFile : null;
}
}