| // Copyright 2021 The Bazel Authors. All rights reserved. |
| // |
| // 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.devtools.build.lib.vfs; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static org.junit.Assert.assertThrows; |
| |
| import java.util.Iterator; |
| import java.util.NoSuchElementException; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link PathSegmentIterator}. */ |
| @RunWith(JUnit4.class) |
| public final class PathSegmentIteratorTest { |
| |
| @Test |
| public void emptyPath() { |
| assertThat(segmentIterator("", /*driveStrLength=*/ 0)).isEmpty(); |
| } |
| |
| @Test |
| public void relativePath() { |
| assertThat(segmentIterator("this/is/a/relative/path", /*driveStrLength=*/ 0)) |
| .containsExactly("this", "is", "a", "relative", "path") |
| .inOrder(); |
| } |
| |
| @Test |
| public void root_unix() { |
| assertThat(segmentIterator("/", /*driveStrLength=*/ 1)).isEmpty(); |
| } |
| |
| @Test |
| public void root_windows() { |
| assertThat(segmentIterator("C:/", /*driveStrLength=*/ 3)).isEmpty(); |
| } |
| |
| @Test |
| public void absolutePath_unix() { |
| assertThat(segmentIterator("/this/is/an/absolute/path", /*driveStrLength=*/ 1)) |
| .containsExactly("this", "is", "an", "absolute", "path") |
| .inOrder(); |
| } |
| |
| @Test |
| public void absolutePath_windows() { |
| assertThat(segmentIterator("C:/this/is/an/absolute/path", /*driveStrLength=*/ 3)) |
| .containsExactly("this", "is", "an", "absolute", "path") |
| .inOrder(); |
| } |
| |
| @Test |
| public void noSuchElement() { |
| Iterator<String> it = PathSegmentIterator.create("some/path", /*driveStrLength=*/ 0); |
| it.next(); |
| it.next(); |
| assertThrows(NoSuchElementException.class, it::next); |
| } |
| |
| private static Iterable<String> segmentIterator(String normalizedPath, int driveStrLength) { |
| return () -> PathSegmentIterator.create(normalizedPath, driveStrLength); |
| } |
| } |