rustfst 1.3.0

Library for constructing, combining, optimizing, and searching weighted finite-state transducers (FSTs).
Documentation 
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use std::fmt::Display;

use anyhow::Result;

use crate::algorithms::fst_convert_from_ref;
use crate::algorithms::rm_epsilon::{rm_epsilon, RmEpsilonFst};
use crate::fst_impls::VectorFst;
use crate::fst_properties::FstProperties;
use crate::fst_traits::{MutableFst, SerializableFst};
use crate::semirings::WeaklyDivisibleSemiring;
use crate::semirings::{SerializableSemiring, WeightQuantize};
use crate::tests_openfst::utils::test_eq_fst;
use crate::tests_openfst::FstTestData;

pub fn test_rmepsilon<W, F>(test_data: &FstTestData<W, F>) -> Result<()>
where
    F: SerializableFst<W> + MutableFst<W> + Display,
    W: SerializableSemiring + WeaklyDivisibleSemiring + WeightQuantize,
{
    // Remove epsilon
    let mut fst_rmepsilon = test_data.raw.clone();
    rm_epsilon(&mut fst_rmepsilon)?;
    std::dbg!(fst_rmepsilon.properties());
    std::dbg!(test_data.rmepsilon.result_static.properties());
    assert!(fst_rmepsilon
        .properties_check(FstProperties::NO_EPSILONS)?
        .contains(FstProperties::NO_EPSILONS));
    test_eq_fst(
        &test_data.rmepsilon.result_static,
        &fst_rmepsilon,
        "RmEpsilon",
    );
    Ok(())
}

pub fn test_rmepsilon_lazy<W>(test_data: &FstTestData<W, VectorFst<W>>) -> Result<()>
where
    W: SerializableSemiring + WeightQuantize,
{
    let rmepsilon_lazy_fst_openfst = &test_data.rmepsilon.result_lazy;
    let rmepsilon_lazy_fst: VectorFst<_> =
        fst_convert_from_ref(&RmEpsilonFst::new(test_data.raw.clone())?);
    test_eq_fst(
        rmepsilon_lazy_fst_openfst,
        &rmepsilon_lazy_fst,
        "RmEpsilon lazy",
    );

    Ok(())
}