startest/expect

to_be_error

pub fn to_be_error(actual: Result(a, b)) -> b

Asserts that the given value is Error(_).

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pub fn to_be_false(actual: Bool) -> Nil

Asserts that the given value is False.

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pub fn to_be_none(actual: Option(a)) -> Nil

Asserts that the given value is None.

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pub fn to_be_ok(actual: Result(a, b)) -> a

Asserts that the given value is Ok(_).

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pub fn to_be_some(actual: Option(a)) -> a

Asserts that the given value is Some(_).

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pub fn to_be_true(actual: Bool) -> Nil

Asserts that the given value is True.

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pub fn to_equal(actual: a, expected expected: a) -> Nil

Asserts that the given value is equal to the expected value.

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pub fn to_loosely_equal(
  actual: Float,
  expected expected: Float,
  tolerating tolerance: Float,
) -> Nil

Asserts that the given Float is equal to the expected Float within the provided tolerance.

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pub fn to_not_equal(actual: a, expected expected: a) -> Nil

Asserts that the given value is not equal to the expected value.

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pub fn to_not_throw(f: fn() -> a) -> a

Asserts that the given function does not throw an error.

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pub fn to_throw(f: fn() -> a) -> Nil

Asserts that the given function throws an error.