assert-within 0.1.4

Macro for testing that (generic) floating point numbers are within some tolerance
Documentation

assert-within

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API Docs

A macro assert_within! for tests involving floating point numbers.

assert_within!(+0.001, val, target, "Value was not within additive 0.001: {more} {context}");
assert_within!(~0.05, val, target, "Value was not within 5% of target: {additional} {information:?}");

Features

  • Pass arguments by reference or value
  • Sigils (+, ~) indicate additive or relative error
  • Traps NaN in any of the arguments
  • Errors cause both the stringified expressions and their values to be displayed
  • Arbitrary additional format args
  • Generic over num_traits::FloatCore
  • no_std compatible

License

MIT or Apache 2.0 at your option.