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// Implementations of Subplot scenario steps for sshca.md.
use serde_json::value::Value;
use std::fs::File;
use std::path::Path;
use subplotlib::steplibrary::datadir::Datadir;
use subplotlib::steplibrary::runcmd::Runcmd;
#[derive(Default)]
struct SubplotContext {}
impl ContextElement for SubplotContext {}
#[step]
#[context(SubplotContext)]
#[context(Runcmd)]
fn install_rust_program(context: &ScenarioContext) {
let target_exe = env!("CARGO_BIN_EXE_obnam-benchmark");
let target_path = Path::new(target_exe);
let target_path = target_path.parent().ok_or("No parent?")?;
context.with_mut(
|context: &mut Runcmd| {
context.prepend_to_path(target_path);
Ok(())
},
false,
)?;
}
#[step]
#[context(Datadir)]
#[context(SubplotContext)]
fn json_files_match(context: &ScenarioContext, first: &str, second: &str) {
context.with(
|context: &Datadir| {
let first = context
.canonicalise_filename(&first)
.expect("can't use first filename");
let first = read_json_file(&first)?;
let second = context
.canonicalise_filename(&second)
.expect("can't use second filename");
let second = read_json_file(&second)?;
if first != second {
eprintln!("JSON files differ:\n{:#?}\n\n{:#?}\n", first, second,);
panic!("ERROR: JSON files differ");
};
Ok(())
},
false,
)?;
}
#[step]
#[context(Datadir)]
#[context(SubplotContext)]
fn file_is_valid_json(context: &ScenarioContext, filename: &str) {
context.with(
|context: &Datadir| {
let filename = context.canonicalise_filename(&filename)?;
read_json_file(&filename)?;
Ok(())
},
false,
)?;
}
fn read_json_file(filename: &Path) -> anyhow::Result<Value> {
let file = File::open(filename)?;
Ok(serde_json::from_reader(&file)?)
}
#[step]
#[context(Datadir)]
#[context(SubplotContext)]
fn file_is_at_least_this_long(context: &ScenarioContext, filename: &str, number: u64) {
context.with(
|context: &Datadir| {
let filename = context.canonicalise_filename(&filename)?;
let meta = std::fs::metadata(&filename)?;
if meta.len() < number {
panic!("file is {} bytes, wanted at least {} bytes", meta.len(), number);
}
Ok(())
},
false,
)?;
}
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