ITF1788

This package is a parser of the Interval Tests Libraries (ITL) testsuite, created by Oliver Heimlich and available here. The tests are to verify whether an interval arithmetic implementation is complying to the IEEE 1788-2015 standard for interval arithmetic. This package converts the test suite to tests in Julia, which can be used to test IntervalArithmetic.jl

This Fork

This fork has several goals:

• switch to stream-based IO with better performance
• avoid regular expressions
• switch to a more expressive style
• match the reduced scope of https://github.com/gwater/IntervalArithmetic.jl

This fork includes many contributions from Josua Grawitter.

How to use

Install and import the fork with

julia> using Pkg; Pkg.add("https://github.com/gwater/ITF1788.jl.git") # only once to install
julia> using ITF1788

then run

julia> generate()

and this function will convert all the test into Julia tests, actually check the tests and mark as broken those not passing.

For example, if the original .itl file had a line like

add [1.0, 2.0] [1.0, 2.0] = [2.0, 4.0]

this will become

@test +(interval(1.0, 2.0), interval(1.0, 2.0)) == interval(2.0, 4.0)

if the test is successful and

@test_broken +(interval(1.0, 2.0), interval(1.0, 2.0)) == interval(2.0, 4.0)

if the test is unsuccessful.

If the test causes an exception, the translation is probably invalid and we return the original test case as a comment:

# add [1.0, 2.0] [1.0, 2.0] = [2.0, 4.0]

By default, all test files are created into a folder test_ITF1788 in your current directory. You can change the output directory with the keyword output, e.g. generate(; output="mydirectory").

The function will also create a run_ITF1788.jl which includes all the tests files, i.e. all you have to do to test IntervalArithmetic.jl against this test suite is

include("test_ITF1788/run_ITF1788.jl")

Original Author

• Luca Ferranti