Gen

Generates an ASCII letter: 'a' to 'z', 'A' to 'Z'

Generates an ASCII letter or digit: 'a' to 'z', 'A' to 'Z', '0' to '9'

Generates an ASCII character

Generates an ASCII binit: '0' to '1'

Generates a random boolean.

This generator shrinks to 'False'.

Generates a random 'Array[Byte]', using 'Range' to determine the length.

Shrinks down to the ascii characters.

Randomly selects one of the generators in the list.

This generator shrinks towards the first generator in the list.

Randomly selects one of the generators in the list.

This generator shrinks towards the first generator in the list.

Trivial generator that always produces the same element.

Generates an ASCII digit: '0' to '9'

Discards the whole generator.

Randomly selects one of the elements in the list.

This generator shrinks towards the first element in the list.

Randomly selects one of the elements in the list.

This generator shrinks towards the first element in the list.

Randomly selects one of the elements in the list.

This generator shrinks towards the first element in the list.

WARNING: This may throw an exception if the list is empty, please use one of the other element variants if possible

Discards the generator if the generated value does not satisfy the predicate.

Generates a value that satisfies a predicate.

We keep some state to avoid looping forever. If we trigger these limits then the whole generator is discarded.

Uses a weighted distribution to randomly select one of the generators in the list.

This generator shrinks towards the first generator in the list.

Uses a weighted distribution to randomly select one of the generators in the list.

This generator shrinks towards the first generator in the list.

Uses a weighted distribution to randomly select one of the generators in the list.

This generator shrinks towards the first generator in the list.

WARNING: This may throw an exception if the list is empty, please use one of the other frequency variants if possible.

Runs a Option generator until it produces a Some.

This is implemented using filter and has the same caveats.

Construct a generator that depends on the size parameter.

Generates an ASCII hexit: '0' to '9', 'a' to 'f', 'A' to 'F'

Generates a random integral number in the given [inclusive,inclusive] range.

When the generator tries to shrink, it will shrink towards the Range.origin of the specified Range.

For example, the following generator will produce a number between 1970 and 2100, but will shrink towards 2000:

Gen.integral(Range.constantFrom(2000, 1970, 2100))

Some sample outputs from this generator might look like:

=== Outcome ===
1973
=== Shrinks ===
2000
1987
1980
1976
1974

=== Outcome ===
2061
=== Shrinks ===
2000
2031
2046
2054
2058
2060

Generates a random integral number in the [inclusive,inclusive] range.

''This generator does not shrink.''

Generates an Latin-1 character

Generates a list using a 'Range' to determine the length.

Generates an ASCII lowercase letter: 'a' to 'z'

Generates an ASCII octit: '0' to '7'

Construct a generator that depends on the size parameter.

Generates a string using 'Range' to determine the length.

Generates a Unicode character, excluding noncharacters and invalid standalone surrogates:

Generates a Unicode character, including noncharacters and invalid standalone surrogates

Generates an ASCII uppercase letter: 'A' to 'Z'