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8edaa6e5c8
Currently we run logspace tests for extensive tests, but there isn't any reason we couldn't also run more kinds of tests more extensively (e.g. more edge cases, combine edge cases with logspace for multi-input functions, etc). As a first step toward making this possible, make `extensive` a new field in `CheckCtx`, and rename `QuickSpaced` to `Spaced`.
107 lines
3.3 KiB
Rust
107 lines
3.3 KiB
Rust
//! Compare our implementations with the result of musl functions, as provided by `musl-math-sys`.
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//!
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//! Currently this only tests randomized inputs. In the future this may be improved to test edge
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//! cases or run exhaustive tests.
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//!
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//! Note that musl functions do not always provide 0.5ULP rounding, so our functions can do better
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//! than these results.
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// There are some targets we can't build musl for
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#![cfg(feature = "build-musl")]
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use libm_test::generate::{case_list, edge_cases, random, spaced};
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use libm_test::{CheckBasis, CheckCtx, CheckOutput, GeneratorKind, MathOp, TupleCall};
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const BASIS: CheckBasis = CheckBasis::Musl;
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fn musl_runner<Op: MathOp>(
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ctx: &CheckCtx,
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cases: impl Iterator<Item = Op::RustArgs>,
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musl_fn: Op::CFn,
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) {
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for input in cases {
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let musl_res = input.call(musl_fn);
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let crate_res = input.call_intercept_panics(Op::ROUTINE);
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crate_res.validate(musl_res, input, ctx).unwrap();
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}
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}
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/// Test against musl with generators from a domain.
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macro_rules! musl_tests {
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(
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fn_name: $fn_name:ident,
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attrs: [$($attr:meta),*],
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) => {
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paste::paste! {
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#[test]
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$(#[$attr])*
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fn [< musl_case_list_ $fn_name >]() {
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type Op = libm_test::op::$fn_name::Routine;
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let ctx = CheckCtx::new(Op::IDENTIFIER, BASIS, GeneratorKind::List);
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let cases = case_list::get_test_cases_basis::<Op>(&ctx).0;
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musl_runner::<Op>(&ctx, cases, musl_math_sys::$fn_name);
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}
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#[test]
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$(#[$attr])*
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fn [< musl_random_ $fn_name >]() {
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type Op = libm_test::op::$fn_name::Routine;
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let ctx = CheckCtx::new(Op::IDENTIFIER, BASIS, GeneratorKind::Random);
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let cases = random::get_test_cases::<<Op as MathOp>::RustArgs>(&ctx).0;
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musl_runner::<Op>(&ctx, cases, musl_math_sys::$fn_name);
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}
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#[test]
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$(#[$attr])*
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fn [< musl_edge_case_ $fn_name >]() {
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type Op = libm_test::op::$fn_name::Routine;
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let ctx = CheckCtx::new(Op::IDENTIFIER, BASIS, GeneratorKind::EdgeCases);
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let cases = edge_cases::get_test_cases::<Op>(&ctx).0;
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musl_runner::<Op>(&ctx, cases, musl_math_sys::$fn_name);
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}
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#[test]
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$(#[$attr])*
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fn [< musl_quickspace_ $fn_name >]() {
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type Op = libm_test::op::$fn_name::Routine;
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let ctx = CheckCtx::new(Op::IDENTIFIER, BASIS, GeneratorKind::Spaced);
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let cases = spaced::get_test_cases::<Op>(&ctx).0;
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musl_runner::<Op>(&ctx, cases, musl_math_sys::$fn_name);
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}
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}
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};
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}
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libm_macros::for_each_function! {
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callback: musl_tests,
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attributes: [],
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// Not provided by musl
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skip_f16_f128: true,
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skip: [
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// TODO integer inputs
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jn,
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jnf,
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ldexp,
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ldexpf,
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scalbn,
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scalbnf,
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yn,
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ynf,
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// Not provided by musl
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// verify-sorted-start
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fmaximum,
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fmaximum_num,
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fmaximum_numf,
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fmaximumf,
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fminimum,
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fminimum_num,
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fminimum_numf,
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fminimumf,
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roundeven,
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roundevenf,
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// // verify-sorted-end
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],
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}
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