8 files changed, 121 insertions, 0 deletions
diff --git a/pkgs/test/haskell/default.nix b/pkgs/test/haskell/default.nix
new file mode 100644
index 000000000000..eb389f4051f8
--- /dev/null
+++ b/pkgs/test/haskell/default.nix
@@ -0,0 +1,7 @@
+{ lib, callPackage }:
+
+lib.recurseIntoAttrs {
+  shellFor = callPackage ./shellFor { };
+  documentationTarball = callPackage ./documentationTarball { };
+  setBuildTarget = callPackage ./setBuildTarget { };
+}
diff --git a/pkgs/test/haskell/documentationTarball/default.nix b/pkgs/test/haskell/documentationTarball/default.nix
new file mode 100644
index 000000000000..aec3dc41f268
--- /dev/null
+++ b/pkgs/test/haskell/documentationTarball/default.nix
@@ -0,0 +1,17 @@
+{ pkgs, haskellPackages }:
+
+let
+  drv = haskellPackages.vector;
+  docs = pkgs.haskell.lib.documentationTarball drv;
+
+in pkgs.runCommand "test haskell.lib.documentationTarball" { } ''
+  tar xvzf "${docs}/${drv.name}-docs.tar.gz"
+
+  # Check for Haddock html
+  find "${drv.name}-docs" | grep -q "Data-Vector.html"
+
+  # Check for source html
+  find "${drv.name}-docs" | grep -q  "src/Data.Vector.html"
+
+  touch "$out"
+''
diff --git a/pkgs/test/haskell/setBuildTarget/Bar.hs b/pkgs/test/haskell/setBuildTarget/Bar.hs
new file mode 100644
index 000000000000..010014082c7d
--- /dev/null
+++ b/pkgs/test/haskell/setBuildTarget/Bar.hs
@@ -0,0 +1,4 @@
+module Main where
+
+main :: IO ()
+main = putStrLn "Hello, Bar!"
diff --git a/pkgs/test/haskell/setBuildTarget/Foo.hs b/pkgs/test/haskell/setBuildTarget/Foo.hs
new file mode 100644
index 000000000000..fec7bb11fe6c
--- /dev/null
+++ b/pkgs/test/haskell/setBuildTarget/Foo.hs
@@ -0,0 +1,4 @@
+module Main where
+
+main :: IO ()
+main = putStrLn "Hello, Foo!"
diff --git a/pkgs/test/haskell/setBuildTarget/Setup.hs b/pkgs/test/haskell/setBuildTarget/Setup.hs
new file mode 100644
index 000000000000..9a994af677b0
--- /dev/null
+++ b/pkgs/test/haskell/setBuildTarget/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/pkgs/test/haskell/setBuildTarget/default.nix b/pkgs/test/haskell/setBuildTarget/default.nix
new file mode 100644
index 000000000000..b1335e2a74cf
--- /dev/null
+++ b/pkgs/test/haskell/setBuildTarget/default.nix
@@ -0,0 +1,38 @@
+{ pkgs, haskellPackages }:
+
+let
+  # This can be regenerated by running `cabal2nix .` in the current directory.
+  pkgDef =
+    { mkDerivation, base, lib }:
+      mkDerivation {
+        pname = "haskell-setBuildTarget";
+        version = "0.1.0.0";
+        src = ./.;
+        isLibrary = false;
+        isExecutable = true;
+        executableHaskellDepends = [ base ];
+        license = lib.licenses.bsd3;
+      };
+
+  drv = haskellPackages.callPackage pkgDef {};
+
+  test  = target: excluded:
+    let only = pkgs.haskell.lib.setBuildTarget drv target;
+    in ''
+         if [[ ! -f "${only}/bin/${target}" ]]; then
+           echo "${target} was not built"
+           exit 1
+         fi
+
+         if [[ -f "${only}/bin/${excluded}" ]]; then
+           echo "${excluded} was built, when it should not have been"
+           exit 1
+         fi
+     '';
+
+in pkgs.runCommand "test haskell.lib.setBuildTarget" {} ''
+  ${test "foo" "bar"}
+  ${test "bar" "foo"}
+  touch "$out"
+''
+
diff --git a/pkgs/test/haskell/setBuildTarget/haskell-setBuildTarget.cabal b/pkgs/test/haskell/setBuildTarget/haskell-setBuildTarget.cabal
new file mode 100644
index 000000000000..7395e139451c
--- /dev/null
+++ b/pkgs/test/haskell/setBuildTarget/haskell-setBuildTarget.cabal
@@ -0,0 +1,16 @@
+cabal-version:       >=1.10
+name:                haskell-setBuildTarget
+version:             0.1.0.0
+author:              Isaac Shapira
+maintainer:          fresheyeball@protonmail.com
+build-type:          Simple
+
+executable foo
+  main-is:             Foo.hs
+  build-depends:       base
+  default-language:    Haskell2010
+
+executable bar
+  main-is:             Bar.hs
+  build-depends:       base
+  default-language:    Haskell2010
diff --git a/pkgs/test/haskell/shellFor/default.nix b/pkgs/test/haskell/shellFor/default.nix
new file mode 100644
index 000000000000..37ad2e90d89e
--- /dev/null
+++ b/pkgs/test/haskell/shellFor/default.nix
@@ -0,0 +1,33 @@
+{ lib, writeText, haskellPackages, cabal-install }:
+
+(haskellPackages.shellFor {
+  packages = p: [ p.constraints p.linear ];
+  nativeBuildInputs = [ cabal-install ];
+  phases = [ "unpackPhase" "buildPhase" "installPhase" ];
+  unpackPhase = ''
+    sourceRoot=$(pwd)/scratch
+    mkdir -p "$sourceRoot"
+    cd "$sourceRoot"
+    tar -xf ${haskellPackages.constraints.src}
+    tar -xf ${haskellPackages.linear.src}
+    cp ${writeText "cabal.project" "packages: constraints* linear*"} cabal.project
+  '';
+  buildPhase = ''
+    export HOME=$(mktemp -d)
+    mkdir -p $HOME/.cabal
+    touch $HOME/.cabal/config
+    cabal v2-build --offline --verbose constraints linear --ghc-options="-O0 -j$NIX_BUILD_CORES"
+  '';
+  installPhase = ''
+    touch $out
+  '';
+}).overrideAttrs (oldAttrs: {
+  meta =
+    let
+      oldMeta = oldAttrs.meta or {};
+      oldMaintainers = oldMeta.maintainers or [];
+      additionalMaintainers = with lib.maintainers; [ cdepillabout ];
+      allMaintainers = oldMaintainers ++ additionalMaintainers;
+    in
+    oldMeta // { maintainers = allMaintainers; };
+})