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tests/tail: Refactor the test_single_big_args test to use ScopedFile

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This commit is contained in:
Nick Fitzgerald 2016-03-26 12:36:15 -07:00
parent a629bb3076
commit 1be7d31d5a
1 changed files with 20 additions and 30 deletions
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50
tests/tail.rs
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@ -9,10 +9,6 @@ static UTIL_NAME: &'static str = "tail";
static INPUT: &'static str = "foobar.txt"; static INPUT: &'static str = "foobar.txt";
static BIG: &'static str = "big.txt";
static BIG_EXPECTED: &'static str = "big_single_big_args.expected";
#[test] #[test]
fn test_stdin_default() { fn test_stdin_default() {
let (at, mut ucmd) = testing(UTIL_NAME); let (at, mut ucmd) = testing(UTIL_NAME);
@ -27,35 +23,29 @@ fn test_single_default() {
assert_eq!(result.stdout, at.read("foobar_single_default.expected")); assert_eq!(result.stdout, at.read("foobar_single_default.expected"));
} }
const BIG_LINES: usize = 1_000_000;
const BIG_N_ARG: usize = 100_000;
fn generate_big_test_files(at: &AtPath) {
let mut big_input = at.make_file(BIG);
for i in 0..BIG_LINES {
write!(&mut big_input, "Line {}\n", i).expect("Could not write to BIG file");
}
big_input.flush().expect("Could not flush BIG file");
let mut big_expected = at.make_file(BIG_EXPECTED);
for i in (BIG_LINES - BIG_N_ARG)..BIG_LINES {
write!(&mut big_expected, "Line {}\n", i).expect("Could not write to BIG_EXPECTED file");
}
big_expected.flush().expect("Could not flush BIG_EXPECTED file");
}
fn cleanup_big_test_files(at: &AtPath) {
at.cleanup(BIG);
at.cleanup(BIG_EXPECTED);
}
#[test] #[test]
fn test_single_big_args() { fn test_single_big_args() {
const FILE: &'static str = "single_big_args.txt";
const EXPECTED_FILE: &'static str = "single_big_args_expected.txt";
const LINES: usize = 1_000_000;
const N_ARG: usize = 100_000;
let (at, mut ucmd) = testing(UTIL_NAME); let (at, mut ucmd) = testing(UTIL_NAME);
generate_big_test_files(&at);
let result = ucmd.arg(BIG).arg("-n").arg(format!("{}", BIG_N_ARG)).run(); let mut big_input = at.make_scoped_file(FILE);
assert_eq!(result.stdout, at.read(BIG_EXPECTED)); for i in 0..LINES {
cleanup_big_test_files(&at); write!(&mut big_input, "Line {}\n", i).expect("Could not write to FILE");
}
big_input.flush().expect("Could not flush FILE");
let mut big_expected = at.make_scoped_file(EXPECTED_FILE);
for i in (LINES - N_ARG)..LINES {
write!(&mut big_expected, "Line {}\n", i).expect("Could not write to EXPECTED_FILE");
}
big_expected.flush().expect("Could not flush EXPECTED_FILE");
let result = ucmd.arg(FILE).arg("-n").arg(format!("{}", N_ARG)).run();
assert_eq!(result.stdout, at.read(EXPECTED_FILE));
} }
#[test] #[test]