@Test
public void concurrent_download() throws IOException {
FileHashes hashes = mock(FileHashes.class);
when(hashes.of(any(File.class))).thenReturn("ABCDE");
final FileCache cache = new FileCache(tempFolder.newFolder(), log, hashes);
FileCache.Downloader downloader =
new FileCache.Downloader() {
public void download(String filename, File toFile) throws IOException {
// Emulate a concurrent download that adds file to cache before
File cachedFile =
new File(new File(cache.getDir(), "ABCDE"), "sonar-foo-plugin-1.5.jar");
FileUtils.write(cachedFile, "downloaded by other");
FileUtils.write(toFile, "downloaded by me");
}
};
// do not fail
File cachedFile = cache.get("sonar-foo-plugin-1.5.jar", "ABCDE", downloader);
assertThat(cachedFile).isNotNull().exists().isFile();
assertThat(cachedFile.getName()).isEqualTo("sonar-foo-plugin-1.5.jar");
assertThat(cachedFile.getParentFile().getParentFile()).isEqualTo(cache.getDir());
assertThat(FileUtils.readFileToString(cachedFile)).contains("downloaded by");
}
@Test
public void found_in_cache() throws IOException {
FileCache cache = FileCache.create(tempFolder.newFolder(), log);
// populate the cache. Assume that hash is correct.
File cachedFile = new File(new File(cache.getDir(), "ABCDE"), "sonar-foo-plugin-1.5.jar");
FileUtils.write(cachedFile, "body");
assertThat(cache.get("sonar-foo-plugin-1.5.jar", "ABCDE"))
.isNotNull()
.exists()
.isEqualTo(cachedFile);
}
@Test
public void download_and_add_to_cache() throws IOException {
FileHashes hashes = mock(FileHashes.class);
FileCache cache = new FileCache(tempFolder.newFolder(), log, hashes);
when(hashes.of(any(File.class))).thenReturn("ABCDE");
FileCache.Downloader downloader =
new FileCache.Downloader() {
public void download(String filename, File toFile) throws IOException {
FileUtils.write(toFile, "body");
}
};
File cachedFile = cache.get("sonar-foo-plugin-1.5.jar", "ABCDE", downloader);
assertThat(cachedFile).isNotNull().exists().isFile();
assertThat(cachedFile.getName()).isEqualTo("sonar-foo-plugin-1.5.jar");
assertThat(cachedFile.getParentFile().getParentFile()).isEqualTo(cache.getDir());
assertThat(FileUtils.readFileToString(cachedFile)).isEqualTo("body");
}
