rsp-cli 0.1.0

A Rust CLI tool that converts escaped strings embedded in YAML ConfigMaps into properly formatted multi-line strings.
Documentation 
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use std::fs;
use std::io::Write;
use std::process::Command;
use tempfile::NamedTempFile;

#[test]
fn test_cli_help_command() {
    let output = Command::new("cargo")
        .args(["run", "--", "--help"])
        .output()
        .expect("Failed to execute command");

    let stdout = String::from_utf8(output.stdout).unwrap();
    assert!(stdout.contains("Raw String Peeler"));
    assert!(stdout.contains("peel"));
    assert!(stdout.contains("--help"));
    assert!(stdout.contains("--version"));
}

#[test]
fn test_cli_version_command() {
    let output = Command::new("cargo")
        .args(["run", "--", "--version"])
        .output()
        .expect("Failed to execute command");

    let stdout = String::from_utf8(output.stdout).unwrap();
    assert!(stdout.contains(&format!("rsp {}", env!("CARGO_PKG_VERSION"))));
}

#[test]
fn test_cli_peel_help() {
    let output = Command::new("cargo")
        .args(["run", "--", "peel", "--help"])
        .output()
        .expect("Failed to execute command");

    let stdout = String::from_utf8(output.stdout).unwrap();
    assert!(stdout.contains("Peel raw strings from YAML files"));
    assert!(stdout.contains("[FILE]"));
    assert!(stdout.contains("--output"));
}

#[test]
fn test_cli_peel_success() {
    let yaml_content = r#"apiVersion: v1
kind: ConfigMap
metadata:
  name: test-config
data:
  config.json: "{\"hello\":\"world\",\n\"foo\":\"bar\"}"
"#;

    // Create temporary input file
    let mut input_file = NamedTempFile::new().unwrap();
    write!(input_file, "{yaml_content}").unwrap();
    let input_path = input_file.path().to_str().unwrap();

    let output = Command::new("cargo")
        .args(["run", "--", "peel", input_path])
        .output()
        .expect("Failed to execute command");

    assert!(output.status.success());

    let stdout = String::from_utf8(output.stdout).unwrap();
    assert!(stdout.contains("config.json: |"));
    assert!(stdout.contains("  {\"hello\":\"world\","));
    assert!(stdout.contains("  \"foo\":\"bar\"}"));
}

#[test]
fn test_cli_peel_with_output_file() {
    let yaml_content = r#"apiVersion: v1
kind: ConfigMap
metadata:
  name: test-config
data:
  config.json: "{\"hello\":\"world\",\n\"foo\":\"bar\"}"
"#;

    // Create temporary input file
    let mut input_file = NamedTempFile::new().unwrap();
    write!(input_file, "{yaml_content}").unwrap();
    let input_path = input_file.path().to_str().unwrap();

    // Create temporary output file
    let output_file = NamedTempFile::new().unwrap();
    let output_path = output_file.path().to_str().unwrap();

    let output = Command::new("cargo")
        .args(["run", "--", "peel", input_path, "-o", output_path])
        .output()
        .expect("Failed to execute command");

    assert!(output.status.success());

    // Check that output file was created and contains expected content
    let file_content = fs::read_to_string(output_path).unwrap();
    assert!(file_content.contains("config.json: |"));
    assert!(file_content.contains("  {\"hello\":\"world\","));
}

#[test]
fn test_cli_peel_file_not_found() {
    let output = Command::new("cargo")
        .args(["run", "--", "peel", "nonexistent_file.yaml"])
        .output()
        .expect("Failed to execute command");

    assert!(!output.status.success());

    let stderr = String::from_utf8(output.stderr).unwrap();
    // The error could be in stderr or stdout depending on implementation
    let combined_output = format!(
        "{}{}",
        stderr,
        String::from_utf8(output.stdout).unwrap_or_default()
    );
    assert!(
        combined_output.contains("File not found")
            || combined_output.contains("No such file")
            || combined_output.contains("nonexistent_file.yaml")
    );
}

#[test]
fn test_cli_peel_invalid_yaml() {
    let invalid_yaml = "invalid: yaml: content: [unclosed";

    let mut input_file = NamedTempFile::new().unwrap();
    write!(input_file, "{invalid_yaml}").unwrap();
    let input_path = input_file.path().to_str().unwrap();

    let output = Command::new("cargo")
        .args(["run", "--", "peel", input_path])
        .output()
        .expect("Failed to execute command");

    assert!(!output.status.success());
}

#[test]
fn test_cli_no_command() {
    let output = Command::new("cargo")
        .args(["run", "--"])
        .output()
        .expect("Failed to execute command");

    assert!(output.status.success());

    let stderr = String::from_utf8(output.stderr).unwrap();
    assert!(stderr.contains("No command provided") || stderr.contains("help"));
}

#[test]
fn test_cli_peel_stdin() {
    let yaml_content = r#"apiVersion: v1
kind: ConfigMap
metadata:
  name: example-config
data:
  config.json: "{\n  \"hello\":\"world\",\n  \"foo\":\"bar\"\n}"
"#;

    let mut child = Command::new("cargo")
        .args(["run", "--", "peel"])
        .stdin(std::process::Stdio::piped())
        .stdout(std::process::Stdio::piped())
        .stderr(std::process::Stdio::piped())
        .spawn()
        .expect("Failed to start command");

    if let Some(stdin) = child.stdin.as_mut() {
        use std::io::Write;
        stdin.write_all(yaml_content.as_bytes()).unwrap();
    }

    let output = child.wait_with_output().expect("Failed to read output");
    assert!(output.status.success());

    let stdout = String::from_utf8(output.stdout).unwrap();
    assert!(stdout.contains("config.json: |"));
    assert!(stdout.contains("  \"hello\":\"world\","));
    assert!(stdout.contains("  \"foo\":\"bar\""));
}

#[test]
fn test_cli_peel_stdin_with_output_file() {
    let yaml_content = r#"apiVersion: v1
kind: ConfigMap
metadata:
  name: example-config
data:
  config.yaml: "hello: \"world\"\nfoo: \"bar\""
"#;

    let output_file = NamedTempFile::new().unwrap();
    let output_path = output_file.path().to_str().unwrap();

    let mut child = Command::new("cargo")
        .args(["run", "--", "peel", "-o", output_path])
        .stdin(std::process::Stdio::piped())
        .stdout(std::process::Stdio::piped())
        .stderr(std::process::Stdio::piped())
        .spawn()
        .expect("Failed to start command");

    if let Some(stdin) = child.stdin.as_mut() {
        use std::io::Write;
        stdin.write_all(yaml_content.as_bytes()).unwrap();
    }

    let output = child.wait_with_output().expect("Failed to read output");
    assert!(output.status.success());

    // Check that the output was written to the file
    let file_content = fs::read_to_string(output_path).unwrap();
    assert!(file_content.contains("config.yaml: |"));
    assert!(file_content.contains("hello: \"world\""));
    assert!(file_content.contains("foo: \"bar\""));

    // Check that success message was printed
    let stdout = String::from_utf8(output.stdout).unwrap();
    assert!(stdout.contains("Output written to"));
}