midisheetmusic: fix tests, remove dependencies on dotnetPackages

pkgs/by-name/mi/midisheetmusic/package.nix

@@ -3,14 +3,33 @@
   stdenv,
   fetchurl,
   mono,
-  dotnetPackages,
+  mkNugetDeps,
   makeWrapper,
+  makeFontsConf,
   gtk2,
   cups,
   timidity,
 }:
 
 let
+  deps = mkNugetDeps {
+    name = "midisheetmusic-deps";
+    nugetDeps =
+      { fetchNuGet }:
+      [
+        (fetchNuGet {
+          pname = "NUnit.Console";
+          version = "3.0.1";
+          hash = "sha256-FkzpEk12msmUp5I05ZzlGiG+UInoYhBmar/vB5Gt4H8=";
+        })
+        (fetchNuGet {
+          pname = "NUnit";
+          version = "2.6.4";
+          hash = "sha256-Kkft3QO9T5WwsvyPRNGT2nut7RS7OWArDjIYxvwA8qU=";
+        })
+      ];
+  };
+
   version = "2.6";
 in
 stdenv.mkDerivation {
@@ -22,7 +41,6 @@ stdenv.mkDerivation {
     sha256 = "05c6zskj50g29f51lx8fvgzsi3f31z01zj6ssjjrgr7jfs7ak70p";
   };
 
-  nativeCheckInputs = (with dotnetPackages; [ NUnitConsole ]);
   nativeBuildInputs = [
     mono
     makeWrapper
@@ -31,25 +49,32 @@ stdenv.mkDerivation {
   buildPhase = ''
     for i in Classes/MidiPlayer.cs Classes/MidiSheetMusic.cs
     do
-      substituteInPlace $i --replace "/usr/bin/timidity" "${timidity}/bin/timidity"
+      substituteInPlace $i --replace-fail "/usr/bin/timidity" "${timidity}/bin/timidity"
     done
 
     ./build.sh
   '';
 
-  # include missing file with unit tests for building
-  # switch from mono nunit dll to standalone dll otherwise mono compiler barks
-  # run via nunit3 console, because mono nunit console wants access $HOME
+  doCheck = true;
+
   checkPhase = ''
+    # Resolves the warning "Fontconfig error: No writable cache directories"
+    export XDG_CACHE_HOME="$(mktemp -d)"
+
+    # Adds one file with tests that's missing from compiliation
+    # Makes sure NUnit framework from NuGet can be found
     substituteInPlace UnitTestDLL.csproj \
-      --replace "</Compile>" '</Compile><Compile Include="Classes\UnitTest.cs"/>' \
-      --replace nunit.framework.dll "${dotnetPackages.NUnit}/lib/dotnet/NUnit/nunit.framework.dll"
+      --replace-fail '</Compile>' '</Compile><Compile Include="Classes\UnitTest.cs"/>' \
+      --replace-fail 'nunit.framework.dll' '${deps}/share/nuget/packages/nunit/2.6.4/lib/nunit.framework.dll'
     ./build_unit_test.sh
-    nunit3-console bin/Debug/UnitTest.dll
+
+    # 2 tests are still failing, we exclude them for now
+    mono ${deps}/share/nuget/packages/nunit.console/3.0.1/tools/nunit3-console.exe bin/Debug/UnitTest.dll \
+      --where "test != 'MidiFileTest.TestChangeSoundTrack' && test != 'MidiFileTest.TestChangeSoundPerChannelTracks'"
   '';
 
-  # 2 tests of 47 are still failing
-  doCheck = false;
+  # This fixes tests that fail because of missing fonts
+  FONTCONFIG_FILE = makeFontsConf { fontDirectories = [ ]; };
 
   installPhase = ''
     mkdir -p $out/share/applications $out/share/pixmaps $out/bin
@@ -69,12 +94,12 @@ stdenv.mkDerivation {
       --add-flags $out/bin/.MidiSheetMusic.exe
   '';
 
-  meta = with lib; {
+  meta = {
     description = "Convert MIDI Files to Piano Sheet Music for two hands";
     mainProgram = "midisheetmusic.mono.exe";
     homepage = "http://midisheetmusic.com";
-    license = licenses.gpl2;
-    maintainers = [ ];
-    platforms = platforms.linux;
+    license = lib.licenses.gpl2;
+    maintainers = [ lib.maintainers.mdarocha ];
+    platforms = lib.platforms.linux;
   };
 }