shelltestrunner (executable: shelltest) is a command-line tool for testing command-line programs, or general shell commands. It reads simple test specifications defining a command to run, some input, and the expected output, stderr, and exit status.

Either "GHCi as a daemon" or "GHC + a bit of an IDE". A very simple Haskell development tool which shows you the errors in your project and updates them whenever you save. Run ghcid --topmost --command=ghci, where --topmost makes the window on top of all others (Windows only) and --command is the command to start GHCi on your project (defaults to ghci if you have a .ghci file, or else to cabal repl).

You're a bookworm that's stuck on a scroll. You have to dodge between words and use spells to make your way down the page as the scroll is read. Go too slow and you'll get wound up in the scroll and crushed.

Stylish-haskell is a Haskell code prettifier. The goal is not to format all of the code in a file, to avoid "getting in the way". However, this tool can e.g. clean up import statements and help doing various tasks that get tedious very quickly. It can

• Align and sort import statements

• Group and wrap -# LANGUAGE #- pragmas, remove (some) redundant pragmas

• Remove trailing whitespaces

• Align branches in case and fields in records

• Convert line endings (customisable)

• Replace tabs by four spaces (turned off by default)

• Replace some ASCII sequences by their Unicode equivalent (turned off by default)

Hoogle is a Haskell API search engine, which allows you to search many standard Haskell libraries by either function name, or by approximate type signature.

This package provides a stable API that can be used to extend Hspec's functionality.

Tasty is a modern testing framework for Haskell. It lets you combine your unit tests, golden tests, QuickCheck/SmallCheck properties, and any other types of tests into a single test suite.

This package provides a Known Answer Tests (KAT) framework for tasty.

This library provides QuickCheck properties to ensure that typeclass instances adhere to the set of laws that they are supposed to. There are other libraries that do similar things, such as genvalidity-hspec and checkers. This library differs from other solutions by not introducing any new typeclasses that the user needs to learn. /Note:/ on GHC < 8.5, this library uses the higher-kinded typeclasses (Data.Functor.Classes.Show1, Data.Functor.Classes.Eq1, Data.Functor.Classes.Ord1, etc.), but on GHC >= 8.5, it uses -XQuantifiedConstraints to express these constraints more cleanly.

This package allows tests such as QuickCheck properties and HUnit test cases to be assembled into test groups, run in parallel (but reported in deterministic order, to aid diff interpretation) and filtered and controlled by command line options. All of this comes with colored test output, progress reporting and test statistics output.

Tasty-th automatically generates tasty TestTrees from functions of the current module, using TemplateHaskell. This is a fork the original test-framework-th package, modified to work with tasty instead of test-framework.

This package provides contributed Hspec extensions.

This package provides QuickCheck instances for types provided by the Haskell Platform.

This package provides a fancy test runner and support for golden testing. A golden test is an IO action that writes its result to a file. To pass the test, this output file should be identical to the corresponding ``golden'' file, which contains the correct result for the test. The test runner allows filtering tests using regexes, and to interactively inspect the result of golden tests.

This library provides the Hspec testing framework for Haskell, inspired by the Ruby library RSpec.

This package allows on to run Doctests in a Cabal.Test.exitcode-stdio environment.

This package provides an orphan instance that allows you to use HUnit assertions as QuickCheck properties.

Property based testing libraries such as QuickCheck tend to include type modifiers. Most of them are used to quantify over subsets of a type. This library is intended to supply these modifiers to be used by testing libraries, in an effort to make properties more portable between testing frameworks.

QuickCheck is a library for random testing of program properties. The programmer provides a specification of the program, in the form of properties which functions should satisfy, and QuickCheck then tests that the properties hold in a large number of randomly generated cases. Specifications are expressed in Haskell, using combinators defined in the QuickCheck library.

Parts of doctest exposed as library. For use with the doctest-extract utility.

This package provides a Tasty provider for Hspec test suites.

This package provides HUnit support for the Tasty Haskell test framework.

This package provides support for golden testing. A golden test is an IO action that writes its result to a file. To pass the test, this output file should be identical to the corresponding golden file, which contains the correct result for the test.

To properly work, the doctest package needs plenty of configuration. This library provides the common bits for writing custom Setup.hs files.