100 lines
3.1 KiB
Rust
100 lines
3.1 KiB
Rust
use flate2::read::DeflateDecoder;
|
|
use flate2::write::DeflateEncoder;
|
|
use flate2::Compression;
|
|
use std::fs::File;
|
|
use std::io::{Read, Write};
|
|
use tempfile::tempfile;
|
|
const TEST_OUTPUT_SAMPLE_DIR: &str = "../resources/test/";
|
|
|
|
pub fn compress_string(input: &str) -> Vec<u8> {
|
|
let mut encoder = DeflateEncoder::new(Vec::new(), Compression::default());
|
|
encoder
|
|
.write_all(input.as_bytes())
|
|
.expect("Failed to write data");
|
|
encoder.finish().expect("Failed to finish compression")
|
|
}
|
|
|
|
pub fn decompress_to_string(compressed_data: &[u8]) -> Result<String, std::io::Error> {
|
|
let mut decoder = DeflateDecoder::new(compressed_data);
|
|
let mut decompressed = String::new();
|
|
decoder.read_to_string(&mut decompressed)?;
|
|
Ok(decompressed)
|
|
}
|
|
|
|
/// Read a compressed test result and return the expected result
|
|
/// as a string
|
|
pub fn read_compressed_test_result(suffix: &str) -> String {
|
|
let full_path = std::env::current_dir().unwrap().display().to_string()
|
|
+ "/"
|
|
+ &*TEST_OUTPUT_SAMPLE_DIR.to_owned()
|
|
+ suffix
|
|
+ ".deflated";
|
|
println!("LOADING {}", full_path);
|
|
let mut compressed_file = File::open(&full_path)
|
|
.expect(format!("Unable to load test result [{}]", full_path.clone()).as_str());
|
|
let mut compressed_data = Vec::new();
|
|
compressed_file
|
|
.read_to_end(&mut compressed_data)
|
|
.expect("Unable to compress data");
|
|
|
|
decompress_to_string(&compressed_data).unwrap()
|
|
}
|
|
|
|
pub fn load_compressed_result(suffix: &str) -> String {
|
|
read_compressed_test_result(suffix)
|
|
}
|
|
pub fn read_test_result(suffix: &str) -> String {
|
|
panic!("THIS SHOULD BE COMPRESSED.");
|
|
// let full_path = TEST_OUTPUT_SAMPLE_DIR.to_owned() + suffix;
|
|
// println!("READING TEST RESULTS FROM {}", full_path);
|
|
// std::fs::read_to_string(full_path).unwrap()
|
|
}
|
|
|
|
pub fn load_rom(to_load: &str) -> Vec<u8> {
|
|
std::fs::read(format!("../resources/roms/{}.ch8", to_load)).unwrap()
|
|
}
|
|
|
|
fn load_result(to_load: &str) -> String {
|
|
panic!("THIS SHOULD BE COMPRESSED.");
|
|
// let full_path = format!(
|
|
// "{}/../resources/test/state/{}",
|
|
// std::env::current_dir().unwrap().display(),
|
|
// to_load
|
|
// );
|
|
// println!("CURRENT DIR: {:?}", std::env::current_dir());
|
|
// println!("Loading state => (([{}]))", full_path);
|
|
// std::fs::read_to_string(full_path).unwrap()
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn smoke() {
|
|
assert!(true)
|
|
}
|
|
|
|
#[test]
|
|
fn compression_round_trip() {
|
|
let to_compress = "The quick brown fox jumps over the lazy dog.";
|
|
|
|
let compressed_text = compress_string(to_compress);
|
|
let decompressed_text = decompress_to_string(&compressed_text).unwrap();
|
|
assert_eq!(to_compress, decompressed_text);
|
|
}
|
|
|
|
#[test]
|
|
fn file_compression_round_trip() {
|
|
// compress string to file...
|
|
let string_to_compress = "The quick brown fox jumps over the lazy dog.";
|
|
let compressed_string = compress_string(string_to_compress);
|
|
let temp_target = tempfile().unwrap();
|
|
|
|
//
|
|
// ...decompress from file...
|
|
//
|
|
// ...verify its the same.
|
|
}
|
|
}
|