94 lines
2.9 KiB
Rust
94 lines
2.9 KiB
Rust
extern crate bakare;
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extern crate tempfile;
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extern crate dir_diff;
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use dir_diff::is_different;
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use std::fs::File;
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use std::io::Error;
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use std::io::Read;
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use std::io::Write;
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use std::path::Path;
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use tempfile::tempdir;
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use tempfile::TempDir;
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use bakare::backup::BackupEngine;
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use bakare::restore::RestoreDescriptor::SpecificPath;
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use bakare::restore::RestoreEngine;
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#[test]
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fn restore_backed_up_files() -> Result<(), Error> {
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let source = Source::new()?;
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let repository = tempdir()?;
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source.write_text_to_file("first", "some contents")?;
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source.write_text_to_file("second", "some contents")?;
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source.write_text_to_file("third", "some other contents")?;
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assert_same_after_restore(source.path(), repository.path())
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}
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#[test]
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fn restore_older_version_of_file() -> Result<(), Error> {
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let source = Source::new()?;
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let repository = tempdir()?;
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let backup_engine = BackupEngine::new(source.path(), repository.path());
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let path = "some path";
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let new_contents = "totally new contents";
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let restore_target = tempdir()?;
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let restore_engine = RestoreEngine::new(repository.path(), &restore_target.path());
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let old_contents = "some old contents";
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source.write_text_to_file(path, old_contents)?;
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backup_engine.backup()?;
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let old_version = backup_engine.file_version(path.as_ref());
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source.write_text_to_file(path, new_contents)?;
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backup_engine.backup()?;
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restore_engine.restore_as_of_version(SpecificPath(path.into()), old_version)?;
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assert_target_file_contents(restore_target.path(), path, old_contents)?;
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Ok(())
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}
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// TODO: restore latest version by default
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// TODO: deduplicate data
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fn assert_target_file_contents(target: &Path, filename: &str, expected_contents: &str) -> Result<(), Error> {
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let restored_path = target.join(filename);
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let mut actual_contents = String::new();
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File::open(restored_path)?.read_to_string(&mut actual_contents)?;
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assert_eq!(expected_contents, actual_contents);
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Ok(())
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}
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fn assert_same_after_restore(source_path: &Path, repository_path: &Path) -> Result<(), Error> {
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let backup_engine = BackupEngine::new(source_path, repository_path);
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backup_engine.backup()?;
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let restore_target = tempdir()?;
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let restore_engine = RestoreEngine::new(repository_path, &restore_target.path());
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restore_engine.restore_all()?;
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let are_source_and_target_different = is_different(source_path, &restore_target.path()).unwrap();
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assert!(!are_source_and_target_different);
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Ok(())
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}
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struct Source {
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directory: TempDir,
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}
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impl Source {
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fn new() -> Result<Self, Error> {
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Ok(Self { directory: tempdir()? })
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}
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fn write_text_to_file(&self, filename: &str, text: &str) -> Result<(), Error> {
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Ok(File::create(self.directory.path().join(filename))?.write_all(text.as_bytes())?)
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}
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fn path(&self) -> &Path {
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self.directory.path()
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}
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}
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