/*
* Copyright 2013 the original author or authors.
*
* 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.gradle.api.file;
import org.gradle.api.internal.file.CompositeFileCollection;
import org.gradle.api.internal.file.UnionFileCollection;
import org.gradle.api.internal.file.collections.DefaultConfigurableFileCollection;
import org.gradle.api.internal.file.collections.DefaultFileCollectionResolveContext;
import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.hamcrest.Factory;
import org.hamcrest.Matcher;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
public class FileCollectionMatchers {
@Factory
public static <T extends FileCollection> Matcher<T> sameCollection(final FileCollection expected) {
return new BaseMatcher<T>() {
public boolean matches(Object o) {
FileCollection actual = (FileCollection) o;
List<? extends FileCollection> actualCollections = unpack(actual);
List<? extends FileCollection> expectedCollections = unpack(expected);
boolean equals = actualCollections.equals(expectedCollections);
if (!equals) {
System.out.println("expected: " + expectedCollections);
System.out.println("actual: " + actualCollections);
}
return equals;
}
private List<? extends FileCollection> unpack(FileCollection expected) {
if (expected instanceof UnionFileCollection) {
UnionFileCollection collection = (UnionFileCollection) expected;
return new ArrayList<FileCollection>(collection.getSources());
}
if (expected instanceof DefaultConfigurableFileCollection) {
DefaultConfigurableFileCollection collection = (DefaultConfigurableFileCollection) expected;
return new ArrayList<FileCollection>((Set) collection.getFrom());
}
if (expected instanceof CompositeFileCollection) {
CompositeFileCollection collection = (CompositeFileCollection) expected;
DefaultFileCollectionResolveContext context = new DefaultFileCollectionResolveContext();
collection.resolve(context);
return context.resolveAsFileCollections();
}
throw new RuntimeException("Cannot get children of " + expected);
}
public void describeTo(Description description) {
description.appendText("same file collection as ").appendValue(expected);
}
};
}
}