nushell/src/tests.rs

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Rust
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use assert_cmd::prelude::*;
use pretty_assertions::assert_eq;
use std::io::Write;
use std::process::Command;
use tempfile::NamedTempFile;
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type TestResult = Result<(), Box<dyn std::error::Error>>;
#[cfg(test)]
fn run_test(input: &str, expected: &str) -> TestResult {
let mut file = NamedTempFile::new()?;
let name = file.path();
let mut cmd = Command::cargo_bin("engine-q")?;
cmd.arg(name);
writeln!(file, "{}", input)?;
let output = cmd.output()?;
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let stderr = String::from_utf8_lossy(&output.stderr).to_string();
let stdout = String::from_utf8_lossy(&output.stdout).to_string();
println!("stdout: {}", stdout);
println!("stderr: {}", stderr);
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assert!(output.status.success());
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assert_eq!(stdout.trim(), expected);
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Ok(())
}
#[cfg(test)]
fn fail_test(input: &str, expected: &str) -> TestResult {
let mut file = NamedTempFile::new()?;
let name = file.path();
let mut cmd = Command::cargo_bin("engine-q")?;
cmd.arg(name);
writeln!(file, "{}", input)?;
let output = cmd.output()?;
let stderr = String::from_utf8_lossy(&output.stderr).to_string();
let stdout = String::from_utf8_lossy(&output.stdout).to_string();
println!("stdout: {}", stdout);
println!("stderr: {}", stderr);
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assert!(stderr.contains(expected));
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Ok(())
}
#[test]
fn add_simple() -> TestResult {
run_test("3 + 4", "7")
}
#[test]
fn add_simple2() -> TestResult {
run_test("3 + 4 + 9", "16")
}
#[test]
fn broken_math() -> TestResult {
fail_test("3 + ", "incomplete")
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}
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#[test]
fn if_test1() -> TestResult {
run_test("if $true { 10 } else { 20 } ", "10")
}
#[test]
fn if_test2() -> TestResult {
run_test("if $false { 10 } else { 20 } ", "20")
}
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#[test]
fn simple_if() -> TestResult {
run_test("if $true { 10 } ", "10")
}
#[test]
fn simple_if2() -> TestResult {
run_test("if $false { 10 } ", "")
}
#[test]
fn if_cond() -> TestResult {
run_test("if 2 < 3 { 3 } ", "3")
}
#[test]
fn if_cond2() -> TestResult {
run_test("if 2 > 3 { 3 } ", "")
}
#[test]
fn if_cond3() -> TestResult {
run_test("if 2 < 3 { 5 } else { 4 } ", "5")
}
#[test]
fn if_cond4() -> TestResult {
run_test("if 2 > 3 { 5 } else { 4 } ", "4")
}
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#[test]
fn if_elseif1() -> TestResult {
run_test("if 2 > 3 { 5 } else if 6 < 7 { 4 } ", "4")
}
#[test]
fn if_elseif2() -> TestResult {
run_test("if 2 < 3 { 5 } else if 6 < 7 { 4 } else { 8 } ", "5")
}
#[test]
fn if_elseif3() -> TestResult {
run_test("if 2 > 3 { 5 } else if 6 > 7 { 4 } else { 8 } ", "8")
}
#[test]
fn if_elseif4() -> TestResult {
run_test("if 2 > 3 { 5 } else if 6 < 7 { 4 } else { 8 } ", "4")
}
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#[test]
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fn no_scope_leak1() -> TestResult {
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fail_test(
"if $false { let $x = 10 } else { let $x = 20 }; $x",
"variable not found",
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)
}
#[test]
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fn no_scope_leak2() -> TestResult {
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fail_test(
"def foo [] { $x }; def bar [] { let $x = 10; foo }; bar",
"Variable not found",
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)
}
#[test]
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fn no_scope_leak3() -> TestResult {
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run_test(
"def foo [$x] { $x }; def bar [] { let $x = 10; foo 20}; bar",
"20",
)
}
#[test]
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fn no_scope_leak4() -> TestResult {
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run_test(
"def foo [$x] { $x }; def bar [] { let $x = 10; (foo 20) + $x}; bar",
"30",
)
}
#[test]
fn simple_var_closing() -> TestResult {
run_test("let $x = 10; def foo [] { $x }; foo", "10")
}
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#[test]
fn predecl_check() -> TestResult {
run_test("def bob [] { sam }; def sam [] { 3 }; bob", "3")
}
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#[test]
fn def_with_no_dollar() -> TestResult {
run_test("def bob [x] { $x + 3 }; bob 4", "7")
}
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#[test]
fn env_shorthand() -> TestResult {
run_test("FOO=BAR if $false { 3 } else { 4 }", "4")
}
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#[test]
fn floating_add() -> TestResult {
run_test("10.1 + 0.8", "10.9")
}
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#[test]
fn subcommand() -> TestResult {
run_test("def foo [] {}; def \"foo bar\" [] {3}; foo bar", "3")
}
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#[test]
fn alias_1() -> TestResult {
run_test("def foo [$x] { $x + 10 }; alias f = foo; f 100", "110")
}
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#[test]
fn alias_2() -> TestResult {
run_test(
"def foo [$x $y] { $x + $y + 10 }; alias f = foo 33; f 100",
"143",
)
}
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#[test]
fn block_param1() -> TestResult {
run_test("[3] | each { $it + 10 }", "13")
}
#[test]
fn block_param2() -> TestResult {
run_test("[3] | each { |y| $y + 10 }", "13")
}