Trait quickcheck::Testable

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pub trait Testable: 'static {
    // Required method
    fn result(&self, _: &mut Gen) -> TestResult;
}
Expand description

Testable describes types (e.g., a function) whose values can be tested.

Anything that can be tested must be capable of producing a TestResult given a random number generator. This is trivial for types like bool, which are just converted to either a passing or failing test result.

For functions, an implementation must generate random arguments and potentially shrink those arguments if they produce a failure.

It’s unlikely that you’ll have to implement this trait yourself.

Required Methods§

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fn result(&self, _: &mut Gen) -> TestResult

Implementations on Foreign Types§

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impl<T: Testable, A: Arbitrary + Debug, B: Arbitrary + Debug, C: Arbitrary + Debug> Testable for fn(_: A, _: B, _: C) -> T

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fn result(&self, g: &mut Gen) -> TestResult

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impl Testable for ()

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fn result(&self, _: &mut Gen) -> TestResult

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impl<T: Testable, A: Arbitrary + Debug, B: Arbitrary + Debug, C: Arbitrary + Debug, D: Arbitrary + Debug, E: Arbitrary + Debug, F: Arbitrary + Debug> Testable for fn(_: A, _: B, _: C, _: D, _: E, _: F) -> T

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fn result(&self, g: &mut Gen) -> TestResult

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impl<T: Testable, A: Arbitrary + Debug, B: Arbitrary + Debug, C: Arbitrary + Debug, D: Arbitrary + Debug, E: Arbitrary + Debug> Testable for fn(_: A, _: B, _: C, _: D, _: E) -> T

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fn result(&self, g: &mut Gen) -> TestResult

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impl<T: Testable, A: Arbitrary + Debug, B: Arbitrary + Debug> Testable for fn(_: A, _: B) -> T

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fn result(&self, g: &mut Gen) -> TestResult

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impl<T: Testable> Testable for fn() -> T

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fn result(&self, g: &mut Gen) -> TestResult

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impl<T: Testable, A: Arbitrary + Debug, B: Arbitrary + Debug, C: Arbitrary + Debug, D: Arbitrary + Debug, E: Arbitrary + Debug, F: Arbitrary + Debug, G: Arbitrary + Debug, H: Arbitrary + Debug> Testable for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G, _: H) -> T

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fn result(&self, g: &mut Gen) -> TestResult

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impl<T: Testable, A: Arbitrary + Debug, B: Arbitrary + Debug, C: Arbitrary + Debug, D: Arbitrary + Debug> Testable for fn(_: A, _: B, _: C, _: D) -> T

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fn result(&self, g: &mut Gen) -> TestResult

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impl<T: Testable, A: Arbitrary + Debug> Testable for fn(_: A) -> T

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fn result(&self, g: &mut Gen) -> TestResult

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impl<A, E> Testable for Result<A, E>where A: Testable, E: Debug + 'static,

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fn result(&self, g: &mut Gen) -> TestResult

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impl Testable for bool

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fn result(&self, _: &mut Gen) -> TestResult

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impl<T: Testable, A: Arbitrary + Debug, B: Arbitrary + Debug, C: Arbitrary + Debug, D: Arbitrary + Debug, E: Arbitrary + Debug, F: Arbitrary + Debug, G: Arbitrary + Debug> Testable for fn(_: A, _: B, _: C, _: D, _: E, _: F, _: G) -> T

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fn result(&self, g: &mut Gen) -> TestResult

Implementors§