| /* |
| * Copyright 2013 Google Inc. |
| * |
| * 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 com.google.common.jimfs; |
| |
| import static com.google.common.base.Functions.toStringFunction; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.google.common.base.Joiner; |
| import com.google.common.base.Splitter; |
| import com.google.common.collect.FluentIterable; |
| import com.google.common.collect.ImmutableList; |
| |
| import java.nio.file.Path; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| /** |
| * @author Colin Decker |
| */ |
| public final class PathTester { |
| |
| private final PathService pathService; |
| private final String string; |
| private String root; |
| private ImmutableList<String> names = ImmutableList.of(); |
| |
| public PathTester(PathService pathService, String string) { |
| this.pathService = pathService; |
| this.string = string; |
| } |
| |
| public PathTester root(String root) { |
| this.root = root; |
| return this; |
| } |
| |
| public PathTester names(Iterable<String> names) { |
| this.names = ImmutableList.copyOf(names); |
| return this; |
| } |
| |
| public PathTester names(String... names) { |
| return names(Arrays.asList(names)); |
| } |
| |
| public void test(String first, String... more) { |
| Path path = pathService.parsePath(first, more); |
| test(path); |
| } |
| |
| public void test(Path path) { |
| assertEquals(string, path.toString()); |
| |
| testRoot(path); |
| testNames(path); |
| testParents(path); |
| testStartsWith(path); |
| testEndsWith(path); |
| testSubpaths(path); |
| } |
| |
| private void testRoot(Path path) { |
| if (root != null) { |
| assertTrue(path + ".isAbsolute() should be true", path.isAbsolute()); |
| assertNotNull(path + ".getRoot() should not be null", path.getRoot()); |
| assertEquals(root, path.getRoot().toString()); |
| } else { |
| assertFalse(path + ".isAbsolute() should be false", path.isAbsolute()); |
| assertNull(path + ".getRoot() should be null", path.getRoot()); |
| } |
| } |
| |
| private void testNames(Path path) { |
| assertEquals(names.size(), path.getNameCount()); |
| assertEquals(names, names(path)); |
| for (int i = 0; i < names.size(); i++) { |
| assertEquals(names.get(i), path.getName(i).toString()); |
| // don't test individual names if this is an individual name |
| if (names.size() > 1) { |
| new PathTester(pathService, names.get(i)) |
| .names(names.get(i)) |
| .test(path.getName(i)); |
| } |
| } |
| if (names.size() > 0) { |
| String fileName = names.get(names.size() - 1); |
| assertEquals(fileName, path.getFileName().toString()); |
| // don't test individual names if this is an individual name |
| if (names.size() > 1) { |
| new PathTester(pathService, fileName) |
| .names(fileName) |
| .test(path.getFileName()); |
| } |
| } |
| } |
| |
| private void testParents(Path path) { |
| Path parent = path.getParent(); |
| |
| if (root != null && names.size() >= 1 || names.size() > 1) { |
| assertNotNull(parent); |
| } |
| |
| if (parent != null) { |
| String parentName = names.size() == 1 ? root : string.substring(0, string.lastIndexOf('/')); |
| new PathTester(pathService, parentName) |
| .root(root) |
| .names(names.subList(0, names.size() - 1)) |
| .test(parent); |
| } |
| } |
| |
| private void testSubpaths(Path path) { |
| if (path.getRoot() == null) { |
| assertEquals(path, path.subpath(0, path.getNameCount())); |
| } |
| |
| if (path.getNameCount() > 1) { |
| String stringWithoutRoot = root == null ? string : string.substring(root.length()); |
| |
| // test start + 1 to end and start to end - 1 subpaths... this recursively tests all subpaths |
| // actually tests most possible subpaths multiple times but... eh |
| Path startSubpath = path.subpath(1, path.getNameCount()); |
| List<String> startNames = |
| ImmutableList.copyOf(Splitter.on('/').split(stringWithoutRoot)) |
| .subList(1, path.getNameCount()); |
| |
| new PathTester(pathService, Joiner.on('/').join(startNames)) |
| .names(startNames).test(startSubpath); |
| |
| Path endSubpath = path.subpath(0, path.getNameCount() - 1); |
| List<String> endNames = |
| ImmutableList.copyOf(Splitter.on('/').split(stringWithoutRoot)) |
| .subList(0, path.getNameCount() - 1); |
| |
| new PathTester(pathService, Joiner.on('/').join(endNames)).names(endNames).test(endSubpath); |
| } |
| } |
| |
| private void testStartsWith(Path path) { |
| // empty path doesn't start with any path |
| if (root != null || !names.isEmpty()) { |
| Path other = path; |
| while (other != null) { |
| assertTrue(path + ".startsWith(" + other + ") should be true", path.startsWith(other)); |
| assertTrue( |
| path + ".startsWith(" + other + ") should be true", path.startsWith(other.toString())); |
| other = other.getParent(); |
| } |
| } |
| } |
| |
| private void testEndsWith(Path path) { |
| // empty path doesn't start with any path |
| if (root != null || !names.isEmpty()) { |
| Path other = path; |
| while (other != null) { |
| assertTrue(path + ".endsWith(" + other + ") should be true", path.endsWith(other)); |
| assertTrue( |
| path + ".endsWith(" + other + ") should be true", path.endsWith(other.toString())); |
| if (other.getRoot() != null && other.getNameCount() > 0) { |
| other = other.subpath(0, other.getNameCount()); |
| } else if (other.getNameCount() > 1) { |
| other = other.subpath(1, other.getNameCount()); |
| } else { |
| other = null; |
| } |
| } |
| } |
| } |
| |
| private static List<String> names(Path path) { |
| return FluentIterable.from(path).transform(toStringFunction()).toList(); |
| } |
| } |