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Add comments to test helpers

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This commit is contained in:
Jack Fletcher 2022-01-26 23:47:40 +00:00
parent 6711ac91a8
commit 161308c673
1 changed files with 9 additions and 3 deletions
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12
tests/end_to_end.rs
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@ -85,6 +85,7 @@ fn append() {
} }
} }
// Write a test zip archive to buffer.
fn write_to_zip( fn write_to_zip(
file: &mut Cursor<Vec<u8>>, file: &mut Cursor<Vec<u8>>,
method: CompressionMethod, method: CompressionMethod,
@ -114,6 +115,7 @@ fn write_to_zip(
Ok(()) Ok(())
} }
// Load an archive from buffer and check for expected test data.
fn read_zip<R: Read + Seek>(zip_file: R) -> zip::result::ZipResult<zip::ZipArchive<R>> { fn read_zip<R: Read + Seek>(zip_file: R) -> zip::result::ZipResult<zip::ZipArchive<R>> {
let mut archive = zip::ZipArchive::new(zip_file).unwrap(); let mut archive = zip::ZipArchive::new(zip_file).unwrap();
@ -139,6 +141,7 @@ fn read_zip<R: Read + Seek>(zip_file: R) -> zip::result::ZipResult<zip::ZipArchi
Ok(archive) Ok(archive)
} }
// Read a file in the archive as a string.
fn read_zip_file<R: Read + Seek>( fn read_zip_file<R: Read + Seek>(
archive: &mut zip::ZipArchive<R>, archive: &mut zip::ZipArchive<R>,
name: &str, name: &str,
@ -150,14 +153,16 @@ fn read_zip_file<R: Read + Seek>(
Ok(contents) Ok(contents)
} }
// Check a file in the archive contains expected data.
fn check_zip_contents( fn check_zip_contents(
zip_file: &mut Cursor<Vec<u8>>, zip_file: &mut Cursor<Vec<u8>>,
name: &str, name: &str,
expected_method: Option<CompressionMethod>, expected_method: Option<CompressionMethod>,
) { ) {
let mut archive = read_zip(zip_file).unwrap(); let mut archive = check_test_archive(zip_file).unwrap();
if let Some(expected_method) = expected_method { if let Some(expected_method) = expected_method {
// Check the file's compression method.
let file = archive.by_name(name).unwrap(); let file = archive.by_name(name).unwrap();
let real_method = file.compression(); let real_method = file.compression();
@ -167,10 +172,11 @@ fn check_zip_contents(
); );
} }
check_zip_file_contents(&mut archive, name); check_test_file_contents(&mut archive, name);
} }
fn check_zip_file_contents<R: Read + Seek>(archive: &mut zip::ZipArchive<R>, name: &str) { // Check a file in the archive contains the lorem string.
fn check_test_file_contents<R: Read + Seek>(archive: &mut zip::ZipArchive<R>, name: &str) {
let file_contents: String = read_zip_file(archive, name).unwrap(); let file_contents: String = read_zip_file(archive, name).unwrap();
assert_eq!(file_contents.as_bytes(), LOREM_IPSUM); assert_eq!(file_contents.as_bytes(), LOREM_IPSUM);
} }