import "testing/quick"
Package quick implements utility functions to help with black box testing.
The testing/quick package is frozen and is not accepting new features.
Check looks for an input to f, any function that returns bool, such that f returns false. It calls f repeatedly, with arbitrary values for each argument. If f returns false on a given input, Check returns that input as a *CheckError. For example:
func TestOddMultipleOfThree(t *testing.T) {
f := func(x int) bool {
y := OddMultipleOfThree(x)
return y%2 == 1 && y%3 == 0
}
if err := quick.Check(f, nil); err != nil {
t.Error(err)
}
}
CheckEqual looks for an input on which f and g return different results. It calls f and g repeatedly with arbitrary values for each argument. If f and g return different answers, CheckEqual returns a *CheckEqualError describing the input and the outputs.
Value returns an arbitrary value of the given type. If the type implements the Generator interface, that will be used. Note: To create arbitrary values for structs, all the fields must be exported.
A CheckEqualError is the result CheckEqual finding an error.
A CheckError is the result of Check finding an error.
A Config structure contains options for running a test.
A Generator can generate random values of its own type.
A SetupError is the result of an error in the way that check is being used, independent of the functions being tested.