Function reference • quickcheck

Integer

A set of generators to produce integer vectors.

integer_() integer_bounded() integer_left_bounded() integer_right_bounded() integer_positive() integer_negative(): Integer generators

Double

A set of generators to produce double vectors.

double_() double_bounded() double_left_bounded() double_right_bounded() double_positive() double_negative() double_fractional() double_whole(): Double generators

Numeric

A set of generators to produce numeric vectors. A numeric vector will be an integer or a double vector.

numeric_() numeric_bounded() numeric_left_bounded() numeric_right_bounded() numeric_positive() numeric_negative(): Numeric generators

Character

A set of generators to produce character vectors.

character_() character_letters() character_numbers() character_alphanumeric(): Character generators

Logical

A generator to produce logical vectors.

logical_(): Logical generator

Date

A set of generators to produce date vectors.

date_() date_bounded() date_left_bounded() date_right_bounded(): Date generators

POSIXct

A set of generators to produce POSIXct vectors.

posixct_() posixct_bounded() posixct_left_bounded() posixct_right_bounded(): POSIXct generators

hms

A set of generators to produce hms vectors.

hms_() hms_bounded() hms_left_bounded() hms_right_bounded(): hms generators

Factor

A generator to produce factor vectors.

factor_(): Factor generator

List

A set of generators to produce lists.

list_(): List generator

list_of(): Variable length list generator

flat_list_of(): Variable length flat list generator

Data frame

A set of generators to produce data frames.

tibble_(): Tibble generators

tibble_of(): Random tibble generator

data_frame_(): Data frame generators

data_frame_of(): Data frame generator with randomized columns

data.table_(): data.table generators

data.table_of(): data.table generator with randomized columns

Any

A set of generators to produce random values.

anything(): Any R object generator

any_atomic(): Any atomic vector generator

any_list(): Any list generator

any_flat_list(): Any flat list generator

any_flat_homogeneous_list(): Any flat homogeneous list generator

any_vector(): Any vector generator

any_tibble(): Any tibble generator

any_data_frame(): Any data frame generator

any_data.table(): Any data.table generator

any_undefined(): Any undefined value generator

Other

Other generators.

one_of(): Randomly choose between generators

equal_length(): Equal length vector generator

constant(): Generate the same value every time

Hedgehog

Convert between quickcheck and hedgehog generators.

from_hedgehog(): Convert a hedgehog generator to a quickcheck generator

as_hedgehog(): Convert a quickcheck generator to a hedgehog generator

Test runner

Functions to run property based tests.

for_all(): Test properties of a function

repeat_test(): Repeatedly test properties of a function

Show example

Show an example output value from a generator

show_example(): Show an example output of a generator