Remove unneeded to_f64 funciton (#4839)

components/experimental/Cargo.toml

@@ -47,7 +47,7 @@ zerofrom = { workspace = true }
 displaydoc = { workspace = true }
 log = { workspace = true, optional = true }
 num-bigint = { workspace = true }
-num-rational = { workspace = true , features = ["num-bigint"]}
+num-rational = { workspace = true, features = ["num-bigint"]}
 num-traits = { workspace = true }
 serde = { workspace = true, features = ["derive", "alloc"], optional = true }
 smallvec = { workspace = true }

components/experimental/src/units/ratio.rs

@@ -11,7 +11,6 @@ use alloc::borrow::Cow;
 use num_bigint::BigInt;
 use num_rational::Ratio;
 use num_traits::Signed;
-use num_traits::ToPrimitive;
 use num_traits::{One, Pow, Zero};
 
 use super::provider::{Base, SiPrefix};
@@ -69,12 +68,6 @@ impl IcuRatio {
  Self(self.0.recip())
  }
 
- // TODO: Make the function private after fixing the need for it in the tests.
- /// Returns the value of the ratio as a `f64`.
- pub fn to_f64(&self) -> Option<f64> {
- Some(self.0.numer().to_f64()? / self.0.denom().to_f64()?)
- }
-
  /// Returns the absolute value of the ratio.
  pub fn abs(&self) -> Self {
  Self(self.0.abs())

components/experimental/tests/units/units_test.rs

@@ -9,7 +9,7 @@ use icu_experimental::units::converter_factory::ConverterFactory;
 use icu_experimental::units::ratio::IcuRatio;
 use num_bigint::BigInt;
 use num_rational::Ratio;
-use num_traits::Signed;
+use num_traits::{Signed, ToPrimitive};
 
 #[test]
 fn test_cldr_unit_tests() {
@@ -69,13 +69,13 @@ fn test_cldr_unit_tests() {
  );
  }
 
- let test_result_f64 = test.result.to_f64().unwrap();
+ let test_result_f64 = test.result.get_ratio().to_f64().unwrap();
  let diff_ratio_f64 = ((test_result_f64 - result_f64) / test_result_f64).abs();
 
  if diff_ratio_f64 > 0.000001 {
  panic!(
  "Failed test: Category: {:?}, Input Unit: {:?}, Output Unit: {:?}, Result: {:?}, Expected Result: {:?}",
- test.category, test.input_unit, test.output_unit, result_f64, test.result
+ test.category, test.input_unit, test.output_unit, result_f64, test_result_f64
  );
  }
  }