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|
// Rust support for running subplot-rust.md
use subplotlib::steplibrary::datadir::Datadir;
use subplotlib::steplibrary::runcmd::{self, Runcmd};
use tempfile::TempDir;
use std::io::{Read, Seek, SeekFrom};
#[derive(Debug, Default)]
struct SubplotContext {
bin_dir: Option<TempDir>,
}
impl ContextElement for SubplotContext {}
#[step]
fn do_nothing(_context: &ScenarioContext) {
// Nothing to do here
}
#[step]
#[context(SubplotContext)]
#[context(Runcmd)]
fn install_subplot(context: &ScenarioContext) {
if let Some(bindir) = std::env::var_os("SUBPLOT_DIR") {
println!("Found SUBPLOT_DIR environment variable, using that");
context.with_mut(
|rc: &mut Runcmd| {
rc.prepend_to_path(bindir);
Ok(())
},
false,
)?;
} else {
let bin_dir = TempDir::new()?;
println!("Creating temporary rundir at {}", bin_dir.path().display());
// Since we don't get CARGO_BIN_EXE_subplot when building a subcrate
// we retrieve the path to `subplot` via the assumption that integration
// tests are always located one dir down from the outer crate binaries.
let target_path = std::fs::canonicalize(
std::env::current_exe()
.expect("Cannot determine test exe path")
.parent()
.unwrap()
.join(".."),
)
.expect("Cannot canonicalise path to binaries");
let src_dir = env!("CARGO_MANIFEST_DIR");
for bin_name in &["subplot"] {
let file_path = bin_dir.path().join(bin_name);
std::fs::write(
&file_path,
format!(
r#"
#!/bin/sh
set -eu
exec '{target_path}/{bin_name}' --resources '{src_dir}/share' "$@"
"#,
target_path = target_path.display(),
bin_name = bin_name,
src_dir = src_dir,
),
)?;
{
let mut perms = std::fs::metadata(&file_path)?.permissions();
use std::os::unix::fs::PermissionsExt;
perms.set_mode(perms.mode() | 0o111); // Set executable bit
std::fs::set_permissions(&file_path, perms)?;
}
}
context.with_mut(
|context: &mut Runcmd| {
context.prepend_to_path(bin_dir.path());
context.prepend_to_path(target_path);
Ok(())
},
false,
)?;
}
}
#[step]
fn uninstall_subplot(context: &mut SubplotContext) {
context.bin_dir.take();
}
#[step]
#[context(Runcmd)]
fn scenario_was_run(context: &ScenarioContext, name: &str) {
let text = format!("\nscenario: {}\n", name);
runcmd::stdout_contains::call(context, &text)?;
}
#[step]
#[context(Runcmd)]
fn scenario_was_not_run(context: &ScenarioContext, name: &str) {
let text = format!("\nscenario: {}\n", name);
runcmd::stdout_doesnt_contain::call(context, &text)?;
}
#[step]
#[context(Runcmd)]
fn step_was_run(context: &ScenarioContext, keyword: &str, name: &str) {
let text = format!("\n step: {} {}\n", keyword, name);
runcmd::stdout_contains::call(context, &text)?;
}
#[step]
#[context(Runcmd)]
fn step_was_run_and_then(
context: &ScenarioContext,
keyword1: &str,
name1: &str,
keyword2: &str,
name2: &str,
) {
let text = format!(
"\n step: {} {}\n step: {} {}",
keyword1, name1, keyword2, name2
);
runcmd::stdout_contains::call(context, &text)?;
}
#[step]
#[context(Runcmd)]
fn cleanup_was_run(
context: &ScenarioContext,
keyword1: &str,
name1: &str,
keyword2: &str,
name2: &str,
) {
let text = format!(
"\n cleanup: {} {}\n cleanup: {} {}\n",
keyword1, name1, keyword2, name2
);
runcmd::stdout_contains::call(context, &text)?;
}
#[step]
#[context(Runcmd)]
fn cleanup_was_not_run(context: &ScenarioContext, keyword: &str, name: &str) {
let text = format!("\n cleanup: {} {}\n", keyword, name);
runcmd::stdout_doesnt_contain::call(context, &text)?;
}
#[throws(StepError)]
fn end_of_file(context: &Datadir, filename: &str, nbytes: usize) -> Vec<u8> {
let mut fh = context.open_read(filename)?;
fh.seek(SeekFrom::End(-(nbytes as i64)))?;
let mut b = vec![0; nbytes];
fh.read_exact(&mut b[0..nbytes])?;
b
}
#[step]
fn file_ends_in_zero_newlines(context: &Datadir, filename: &str) {
let b = end_of_file(context, filename, 1)?;
if b[0] == b'\n' {
throw!(format!("File {} ends in unexpected newline", filename));
}
}
#[step]
fn file_ends_in_one_newline(context: &Datadir, filename: &str) {
let b = end_of_file(context, filename, 2)?;
if !(b[0] != b'\n' && b[1] == b'\n') {
throw!(format!(
"File {} does not end in exactly one newline",
filename
));
}
}
#[step]
fn file_ends_in_two_newlines(context: &Datadir, filename: &str) {
let b = end_of_file(context, filename, 2)?;
if b[0] != b'\n' || b[1] != b'\n' {
throw!(format!(
"File {} does not end in exactly two newlines",
filename
));
}
}
#[step]
fn sleep_seconds(_context: &Datadir, delay: u64) {
std::thread::sleep(std::time::Duration::from_secs(delay));
}
#[step]
#[context(Datadir)]
#[context(Runcmd)]
fn json_output_matches_file(context: &ScenarioContext, filename: &str) {
let output = context.with(|rc: &Runcmd| Ok(rc.stdout_as_string()), false)?;
let fcontent = context.with(
|dd: &Datadir| {
Ok(std::fs::read_to_string(
dd.canonicalise_filename(filename)?,
)?)
},
false,
)?;
let output: serde_json::Value = serde_json::from_str(&output)?;
let fcontent: serde_json::Value = serde_json::from_str(&fcontent)?;
println!("########");
println!("Output:\n{:#}", output);
println!("File:\n{:#}", fcontent);
println!("########");
assert_eq!(
output, fcontent,
"Command output does not match the content of {}",
filename
);
}
|
