WIP add testresults output

package.nix

@@ -208,7 +208,9 @@ in {
     # If we are doing just build or just docs, the one thing will use
     # "out". We only need additional outputs if we are doing both.
     ++ lib.optional (doBuild && (enableManual || enableInternalAPIDocs || enableExternalAPIDocs)) "doc"
-    ++ lib.optional installUnitTests "check";
+    ++ lib.optional installUnitTests "check"
+    ++ lib.optional doCheck "testresults"
+    ;
 
   nativeBuildInputs = [
     autoconf-archive
@@ -317,6 +319,10 @@ in {
 
   makeFlags = "profiledir=$(out)/etc/profile.d PRECOMPILE_HEADERS=1";
 
+  preCheck = ''
+    mkdir $testresults
+  '';
+
   installTargets = lib.optional doBuild "install"
     ++ lib.optional enableInternalAPIDocs "internal-api-html"
     ++ lib.optional enableExternalAPIDocs "external-api-html";

tests/unit/libexpr/local.mk

@@ -4,7 +4,7 @@ programs += libexpr-tests
 
 libexpr-tests_NAME := libnixexpr-tests
 
-libexpr-tests_ENV := _NIX_TEST_UNIT_DATA=$(d)/data
+libexpr-tests_ENV := _NIX_TEST_UNIT_DATA=$(d)/data GTEST_OUTPUT=xml:$$testresults/libexpr-tests.xml
 
 libexpr-tests_DIR := $(d)
 

tests/unit/libfetchers/local.mk

@@ -4,7 +4,7 @@ programs += libfetchers-tests
 
 libfetchers-tests_NAME = libnixfetchers-tests
 
-libfetchers-tests_ENV := _NIX_TEST_UNIT_DATA=$(d)/data
+libfetchers-tests_ENV := _NIX_TEST_UNIT_DATA=$(d)/data GTEST_OUTPUT=xml:$$testresults/libfetchers-tests.xml
 
 libfetchers-tests_DIR := $(d)
 

tests/unit/libstore/local.mk

@@ -4,7 +4,7 @@ programs += libstore-tests
 
 libstore-tests_NAME = libnixstore-tests
 
-libstore-tests_ENV := _NIX_TEST_UNIT_DATA=$(d)/data
+libstore-tests_ENV := _NIX_TEST_UNIT_DATA=$(d)/data GTEST_OUTPUT=xml:$$testresults/libstore-tests.xml
 
 libstore-tests_DIR := $(d)
 

tests/unit/libutil/local.mk

@@ -4,7 +4,7 @@ programs += libutil-tests
 
 libutil-tests_NAME = libnixutil-tests
 
-libutil-tests_ENV := _NIX_TEST_UNIT_DATA=$(d)/data
+libutil-tests_ENV := _NIX_TEST_UNIT_DATA=$(d)/data GTEST_OUTPUT=xml:$$testresults/libutil-tests.xml
 
 libutil-tests_DIR := $(d)