Prop

A property argument

Evaluating the property raised an exception

A collection of property operators on Any values. Import Prop.AnyOperators to make the operators available.

A collection of property operators on Boolean values. Import Prop.propBoolean to make the operators available. The availability of this class as an implicit via BooleanOperators was removed in 1.15.0.

The property was false

The property was proved

The result of evaluating a property

The property was true

The property could not be falsified or proved

Create a property that compares two values. If the values aren't equal, the property will fail and report that second value doesn't match the expected (first) value.

Create a property that compares two values. If the values aren't equal, the property will fail and report that first value doesn't match the expected (second) value.

Combines properties into one, which is true if and only if all the properties are true

Create a new property from the given function.

Create a property that returns the given result

Create a property from a boolean value

Combines properties into one, which is true if at least one of the properties is true

Collect data for presentation in test report

Collect data for presentation in test report

Collect data for presentation in test report

Wraps a property to delay its evaluation. The given parameter is evaluated each time the wrapper property is evaluated.

A property that denotes an exception

Existential quantifier for an explicit generator.

Existential quantifier for an explicit generator.

Universal quantifier for an explicit generator. Shrinks failed arguments with the default shrink function for the type

Universal quantifier for two explicit generators. Shrinks failed arguments with the default shrink function for the type

Universal quantifier for three explicit generators. Shrinks failed arguments with the default shrink function for the type

Universal quantifier for four explicit generators. Shrinks failed arguments with the default shrink function for the type

Universal quantifier for five explicit generators. Shrinks failed arguments with the default shrink function for the type

Universal quantifier for six explicit generators. Shrinks failed arguments with the default shrink function for the type

Universal quantifier for seven explicit generators. Shrinks failed arguments with the default shrink function for the type

Universal quantifier for eight explicit generators. Shrinks failed arguments with the default shrink function for the type

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Universal quantifier for an explicit generator. Does not shrink failed test cases.

Universal quantifier for two explicit generators. Does not shrink failed test cases.

Universal quantifier for three explicit generators. Does not shrink failed test cases.

Universal quantifier for four explicit generators. Does not shrink failed test cases.

Universal quantifier for five explicit generators. Does not shrink failed test cases.

Universal quantifier for six explicit generators. Does not shrink failed test cases.

Universal quantifier for seven explicit generators. Does not shrink failed test cases.

Universal quantifier for eight explicit generators. Does not shrink failed test cases.

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Converts a function into a universally quantified property

Universal quantifier for an explicit generator. Shrinks failed arguments with the given shrink function

Property holds only if the given partial function is defined at x, and returns a property that holds

Implication with several conditions

Wraps a property lazily. The given parameter is only evaluated once, and not until the wrapper property is evaluated.

A property that holds iff none of the given generators fails generating a value

Wraps and protects a property, delaying its evaluation and turning exceptions into test failures.

Wraps and protects a property, turning exceptions thrown by the property into test failures.

A property that depends on the generator size

A property that holds if at least one of the given generators fails generating a value

This handles situations where we have a starting seed in our parameters.

If we do, then we remove it from parameters and return it. If not, we create a new random seed. The new parameters from this method should be used with all the generation that this prop needs itself.

Note that if this Prop needs to evaluate other Props (e.g. in forAll), you should make sure not to use the parameters returned from this method. We need for all Props evaluated by this one to behave deterministically if this Prop was given a seed. In that case you should use slideSeed to update the parameters.

Returns true if the given statement throws an exception of the specified type

Ensures that the property expression passed in completes within the given space of time.

Implicit method that makes a number of property operators on boolean values available in the current scope. See Prop.ExtendedBoolean for documentation on the operators.

Collect data for presentation in test report

A property that denotes an exception

A property that always is false

A property that always is passed

A property that always is proved

A property that never is proved or falsified

Implicit method that makes a number of property operators on values of type Any available in the current scope. See Prop.ExtendedAny for documentation on the operators.

Implicit conversion of Boolean values to Prop values.