Duration (#40)

Reviewed-on: #40
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

src/lib.rs

@@ -1,2 +1,66 @@
 pub mod meta;
+pub mod properties;
 pub mod types;
+
+pub mod test_util {
+    pub mod util {
+        use std::io::{self, Write};
+
+        // Function to save a Vec<u8> to a file
+        pub fn save_bytes_to_file(bytes: &[u8], file_path: &String) -> io::Result<()> {
+            let file = std::path::Path::new(file_path);
+            let mut file = std::fs::File::create(file)?;
+
+            match file.write_all(bytes) {
+                Ok(_res) => Ok(()),
+                Err(err) => Err(err),
+            }
+        }
+        pub fn get_full_path(
+            directory: &String,
+            filename: &String,
+        ) -> Result<String, std::io::Error> {
+            match path_buf(directory, filename) {
+                Ok(pf) => Ok(pf.display().to_string()),
+                Err(err) => Err(err),
+            }
+        }
+
+        pub fn copy_file(
+            source_path: &String,
+            destination_path: &String,
+        ) -> Result<u64, std::io::Error> {
+            let src_path = std::path::Path::new(source_path);
+            let dest_path = std::path::Path::new(destination_path);
+
+            std::fs::copy(src_path, dest_path)
+        }
+
+        pub fn file_exists(directory: &String, filename: &String) -> Result<bool, std::io::Error> {
+            match path_buf(directory, filename) {
+                Ok(pf) => Ok(pf.exists()),
+                Err(err) => Err(err),
+            }
+        }
+
+        fn path_buf(
+            directory: &String,
+            filename: &String,
+        ) -> Result<std::path::PathBuf, std::io::Error> {
+            let dir_path = std::path::Path::new(&directory);
+            Ok(dir_path.join(filename))
+        }
+
+        pub const TESTFILEDIRECTORY: &str = "tests/sample_tracks3";
+
+        pub fn get_filename(track: i32) -> String {
+            const FLAC_EXTENSION: &str = ".flac";
+
+            if track < 10 {
+                format!("track0{track}{FLAC_EXTENSION}")
+            } else {
+                format!("track{track}{FLAC_EXTENSION}")
+            }
+        }
+    }
+}