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use async_trait::async_trait;
use anyhow::Result;
use csv::WriterBuilder;
use std::io;
use super::OutputFormatter;
use crate::core::DependencyCollection;
pub struct CsvFormatter;
impl CsvFormatter {
pub fn new() -> Self {
Self
}
}
impl Default for CsvFormatter {
fn default() -> Self {
Self::new()
}
}
#[async_trait]
impl OutputFormatter for CsvFormatter {
async fn format(&self, dependencies: &DependencyCollection) -> Result<()> {
let mut writer = WriterBuilder::new()
.has_headers(true)
.from_writer(io::stdout());
// Write header
writer.write_record(&["Name", "Version", "Licenses", "Location"])?;
// Write dependencies
for dep in dependencies.iter() {
writer.write_record(&[
&dep.name,
&dep.version,
&dep.license_display(),
&dep.location.to_string(),
])?;
}
writer.flush()?;
Ok(())
}
fn name(&self) -> &'static str {
"csv"
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::core::{Dependency, DependencyCollection};
#[tokio::test]
async fn test_csv_formatter_empty() {
let formatter = CsvFormatter::new();
let dependencies = DependencyCollection::new();
let result = formatter.format(&dependencies).await;
assert!(result.is_ok());
}
#[tokio::test]
async fn test_csv_formatter_with_dependencies() {
let formatter = CsvFormatter::new();
let mut dependencies = DependencyCollection::new();
let dep = Dependency::new("test".to_string(), "1.0.0".to_string())
.with_license("MIT".to_string());
dependencies.add(dep);
let result = formatter.format(&dependencies).await;
assert!(result.is_ok());
}
#[test]
fn test_formatter_name() {
let formatter = CsvFormatter::new();
assert_eq!(formatter.name(), "csv");
}
}
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