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use super::*;
use crate::collections::HashMap;
use crate::io::Write;
fn create_args_test() -> std::io::Result<Vec<u8>> {
let mut sample_data = vec![];
let mut h = HashMap::new();
h.insert("foo", "bar");
h.insert("baz", "qux");
h.insert("some", "val");
// Magic number
sample_data.write_all(&PARAMS_MAGIC)?;
// Size of the AppP block
sample_data.write_all(&4u32.to_le_bytes())?;
// Number of blocks
sample_data.write_all(&2u32.to_le_bytes())?;
// Magic number
sample_data.write_all(&ENV_MAGIC)?;
let mut data = vec![];
for (key, value) in h.iter() {
data.extend_from_slice(&(key.len() as u16).to_le_bytes());
data.extend_from_slice(key.as_bytes());
data.extend_from_slice(&(value.len() as u16).to_le_bytes());
data.extend_from_slice(value.as_bytes());
}
// Size of the EnvB block
sample_data.write_all(&(data.len() as u32 + 2).to_le_bytes())?;
// Number of environment variables
sample_data.write_all(&(h.len() as u16).to_le_bytes())?;
// Environment variables
sample_data.write_all(&data)?;
// Write command line arguments
let args = vec!["some", "command", "line variable", "entries"];
sample_data.write_all(&ARGS_MAGIC)?;
let mut args_size = 0;
for entry in args.iter() {
args_size += entry.len() + 2;
}
sample_data.write_all(&(args_size as u32 + 2).to_le_bytes())?;
sample_data.write_all(&(args.len() as u16).to_le_bytes())?;
for entry in args {
sample_data.write_all(&(entry.len() as u16).to_le_bytes())?;
sample_data.write_all(entry.as_bytes())?;
}
Ok(sample_data)
}
#[test]
fn basic_arg_parsing() {
let arg_data = create_args_test().expect("couldn't create test data");
for byte in &arg_data {
print!("{:02x} ", byte);
}
println!();
let args = ApplicationParameters::new(&arg_data).expect("Unable to parse arguments");
for arg in args {
if let Ok(env) = EnvironmentBlock::try_from(&arg) {
for env in env {
println!("{}={}", env.key, env.value);
}
} else if let Ok(args) = ArgumentList::try_from(&arg) {
for arg in args {
println!("Arg: {}", arg.value);
}
}
}
}
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