chore: add copyright information

Author: rishadbaniya

i18n/iconv.rs

@@ -1,3 +1,12 @@
+//
+// Copyright (c) 2024 Jeff Garzik
+//
+// This file is part of the posixutils-rs project covered under
+// the MIT License.  For the full license text, please see the LICENSE
+// file in the root directory of this project.
+// SPDX-License-Identifier: MIT
+//
+
 use clap::Parser;
 use gettextrs::{bind_textdomain_codeset, setlocale, textdomain, LocaleCategory};
 use iconv_lib::{

i18n/iconv_lib/utf_32.rs

@@ -1,3 +1,12 @@
+//
+// Copyright (c) 2024 Jeff Garzik
+//
+// This file is part of the posixutils-rs project covered under
+// the MIT License.  For the full license text, please see the LICENSE
+// file in the root directory of this project.
+// SPDX-License-Identifier: MIT
+//
+
 use byteorder::{BigEndian, ByteOrder, LittleEndian};
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]

i18n/iconv_lib/utf_8.rs

@@ -1,3 +1,12 @@
+//
+// Copyright (c) 2024 Jeff Garzik
+//
+// This file is part of the posixutils-rs project covered under
+// the MIT License.  For the full license text, please see the LICENSE
+// file in the root directory of this project.
+// SPDX-License-Identifier: MIT
+//
+
 /// Convert UTF-8 to UCS-4
 pub fn to_ucs4(input: &[u8], omit_invalid: bool, supress_error: bool) -> (u32, Vec<u32>) {
     let mut result = Vec::new();

i18n/tests/i18n-tests.rs

@@ -8,3 +8,4 @@
 //
 
 mod gencat;
+mod iconv;

i18n/tests/iconv/mod.rs

@@ -0,0 +1,66 @@
+//
+// Copyright (c) 2024 Jeff Garzik
+//
+// This file is part of the posixutils-rs project covered under
+// the MIT License.  For the full license text, please see the LICENSE
+// file in the root directory of this project.
+// SPDX-License-Identifier: MIT
+//
+
+use plib::{run_test_u8, TestPlanU8};
+use std::env;
+use std::path::PathBuf;
+use std::{fs::File, io::Read};
+
+fn iconv_test(args: &[&str], input: Vec<u8>, expected_output: Vec<u8>, expected_error: Vec<u8>) {
+    let str_args: Vec<String> = args.iter().map(|s| String::from(*s)).collect();
+    run_test_u8(TestPlanU8 {
+        cmd: String::from("iconv"),
+        args: str_args,
+        stdin_data: input,
+        expected_out: expected_output,
+        expected_err: expected_error,
+        expected_exit_code: 0,
+    })
+}
+
+#[test]
+fn iconv_no_flag_data_input() {
+    let input = "Hello world".as_bytes().to_vec();
+    iconv_test(&[], input.clone(), input.clone(), Vec::new());
+}
+
+#[test]
+fn iconv_utf8_to_ascii_conversion_with_c_flag() {
+    let cargo_manifest_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
+
+    let input_file = cargo_manifest_dir.join("tests/iconv/test_data_utf8");
+    let mut input: Vec<u8> = Vec::new();
+    File::open(&input_file)
+        .unwrap()
+        .read_to_end(&mut input)
+        .unwrap();
+
+    let expected_output_file =
+        cargo_manifest_dir.join("tests/iconv/test_data_utf8_to_ascii_with_c_flag");
+
+    let mut expected_output: Vec<u8> = Vec::new();
+    File::open(&expected_output_file)
+        .unwrap()
+        .read_to_end(&mut expected_output)
+        .unwrap();
+
+    iconv_test(
+        &["-c", "-f", "UTF-8", "-t", "ASCII", "-"],
+        input.clone(),
+        expected_output.clone(),
+        Vec::new(),
+    );
+
+    iconv_test(
+        &["-c", "-f", "UTF-8", "-t", "ASCII"],
+        input,
+        expected_output,
+        Vec::new(),
+    );
+}