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use crate::eval::interpret;
use crate::eval::Options;
use pretty_assertions::assert_eq;
use test_generator::test_resources;
fn eval_test(code_path: &str, expect_success: bool) {
let base = code_path
.strip_suffix("nix")
.expect("test files always end in .nix");
let exp_path = format!("{}exp", base);
let code = std::fs::read_to_string(code_path).expect("should be able to read test code");
match interpret(&code, Some(code_path.into()), Options::test_options()) {
Ok(result) => {
if !expect_success {
panic!(
"test should have failed, but succeeded with output {}",
result
);
}
let result_str = format!("{}", result);
let exp =
std::fs::read_to_string(exp_path).expect("should be able to read test expectation");
assert_eq!(
result_str,
exp.trim(),
"result value representation (left) must match expectation (right)"
);
}
Err(e) => {
if expect_success {
panic!(
"evaluation of eval-okay test should succeed, but failed with {:?}",
e
);
}
}
}
}
// identity-* tests contain Nix code snippets which should evaluate to
// themselves exactly (i.e. literals).
#[test_resources("src/tests/tvix_tests/identity-*.nix")]
fn identity(code_path: &str) {
let code = std::fs::read_to_string(code_path).expect("should be able to read test code");
let result = interpret(&code, None, Options::test_options())
.expect("evaluation of identity test should succeed");
let result_str = format!("{}", result);
assert_eq!(
result_str,
code.trim(),
"result value representation (left) must match expectation (right)"
)
}
// eval-okay-* tests contain a snippet of Nix code, and an expectation
// of the produced string output of the evaluator.
//
// These evaluations are always supposed to succeed, i.e. all snippets
// are guaranteed to be valid Nix code.
#[test_resources("src/tests/tvix_tests/eval-okay-*.nix")]
fn eval_okay(code_path: &str) {
eval_test(code_path, true)
}
// eval-fail-* tests from the original Nix test suite.
#[cfg(feature = "nix_tests")]
#[test_resources("src/tests/nix_tests/eval-okay-*.nix")]
fn nix_eval_okay(code_path: &str) {
eval_test(code_path, true)
}
// eval-fail-* tests contain a snippet of Nix code, which is
// expected to fail evaluation. The exact type of failure
// (assertion, parse error, etc) is not currently checked.
#[test_resources("src/tests/tvix_tests/eval-fail-*.nix")]
fn eval_fail(code_path: &str) {
eval_test(code_path, false)
}
// eval-fail-* tests from the original Nix test suite.
#[cfg(feature = "nix_tests")]
#[test_resources("src/tests/nix_tests/eval-fail-*.nix")]
fn nix_eval_fail(code_path: &str) {
eval_test(code_path, false)
}
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