61 lines
2.2 KiB
Rust
61 lines
2.2 KiB
Rust
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//! Terminal search with its stderr in a pipe nobody reads, as under
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//! `2>&1 | head -n1` once `head` has its line: a note that cannot be written
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//! is lost, never a panic that turns a finished search into exit 101.
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use std::process::{Command, Stdio};
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use quicksearch_core::testutil::{seed_index, Scratch, SeedSpec, NEEDLE};
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#[test]
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fn a_closed_stderr_loses_the_truncation_note_not_the_exit_code() {
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let (dir, db) = Scratch::db("cli-stderr");
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// More files named for the needle than the limit below, so the search is
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// cut short and has its note to write.
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seed_index(
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&db,
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&SeedSpec {
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files: 40,
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dirs: 4,
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needle_names: 4,
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needle_docs: 0,
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body_term_docs: 0,
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..SeedSpec::default()
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},
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);
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// The per-user config the CLI finds, on either platform.
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let config_home = dir.join("config");
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std::fs::create_dir_all(config_home.join("quicksearch")).unwrap();
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std::fs::write(
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config_home.join("quicksearch").join("config.toml"),
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format!("[paths]\ndatabase_path = '{}'\n", db.display()),
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)
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.unwrap();
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let search = || {
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let mut cmd = Command::new(env!("CARGO_BIN_EXE_quicksearch-cli"));
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cmd.args(["--limit", "1", NEEDLE])
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.env("XDG_CONFIG_HOME", &config_home)
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.env("APPDATA", &config_home)
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.stdin(Stdio::null());
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cmd
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};
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// Read, stderr has the note: the path under test is taken.
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let out = search().output().unwrap();
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let stderr = String::from_utf8_lossy(&out.stderr);
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assert_eq!(out.status.code(), Some(0), "stderr: {stderr}");
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assert!(
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stderr.contains("truncated at 1 results"),
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"stderr: {stderr}"
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);
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// The read end is gone before the child starts, so every stderr write
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// fails as a broken pipe; stdout is read as usual.
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let (reader, writer) = std::io::pipe().unwrap();
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drop(reader);
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let out = search().stderr(writer).output().unwrap();
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let stdout = String::from_utf8_lossy(&out.stdout);
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assert_eq!(out.status.code(), Some(0), "stdout: {stdout}");
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assert_eq!(stdout.lines().count(), 1, "one hit, as limited: {stdout}");
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}
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