split up C# tests into separate processes

src/csharp/tests.json

+{
+  "assemblies": [
+    "Grpc.Core.Tests",
+    "Grpc.Examples.Tests",
+    "Grpc.HealthCheck.Tests",
+    "Grpc.IntegrationTesting"
+  ],
+  "tests": [
+    "Grpc.Core.Internal.Tests.AsyncCallTest",
+    "Grpc.Core.Internal.Tests.ChannelArgsSafeHandleTest",
+    "Grpc.Core.Internal.Tests.CompletionQueueEventTest",
+    "Grpc.Core.Internal.Tests.CompletionQueueSafeHandleTest",
+    "Grpc.Core.Internal.Tests.MetadataArraySafeHandleTest",
+    "Grpc.Core.Internal.Tests.TimespecTest",
+    "Grpc.Core.Tests.CallCredentialsTest",
+    "Grpc.Core.Tests.CallOptionsTest",
+    "Grpc.Core.Tests.ChannelCredentialsTest",
+    "Grpc.Core.Tests.ChannelOptionsTest",
+    "Grpc.Core.Tests.ChannelTest",
+    "Grpc.Core.Tests.ClientServerTest",
+    "Grpc.Core.Tests.CompressionTest",
+    "Grpc.Core.Tests.ContextPropagationTest",
+    "Grpc.Core.Tests.GrpcEnvironmentTest",
+    "Grpc.Core.Tests.MarshallingErrorsTest",
+    "Grpc.Core.Tests.MetadataTest",
+    "Grpc.Core.Tests.NUnitVersionTest",
+    "Grpc.Core.Tests.PerformanceTest",
+    "Grpc.Core.Tests.PInvokeTest",
+    "Grpc.Core.Tests.ResponseHeadersTest",
+    "Grpc.Core.Tests.SanityTest",
+    "Grpc.Core.Tests.ServerTest",
+    "Grpc.Core.Tests.ShutdownTest",
+    "Grpc.Core.Tests.TimeoutsTest",
+    "Grpc.Core.Tests.UserAgentStringTest",
+    "Math.Tests.MathClientServerTest",
+    "Grpc.HealthCheck.Tests.HealthClientServerTest",
+    "Grpc.HealthCheck.Tests.HealthServiceImplTest",
+    "Grpc.IntegrationTesting.HeaderInterceptorTest",
+    "Grpc.IntegrationTesting.HistogramTest",
+    "Grpc.IntegrationTesting.InteropClientServerTest",
+    "Grpc.IntegrationTesting.MetadataCredentialsTest",
+    "Grpc.IntegrationTesting.RunnerClientServerTest",
+    "Grpc.IntegrationTesting.SslCredentialsTest"
+  ]
+}
\ No newline at end of file

tools/run_tests/build_csharp.sh

@@ -30,7 +30,7 @@
 
 set -ex
 
-if [ "$CONFIG" = "dbg" ] || [ "$CONFIG" = "gcov" ]
+if [ "$CONFIG" = "dbg" ]
 then
   MSBUILD_CONFIG="Debug"
 else

tools/run_tests/run_csharp.bat

@@ -6,16 +6,11 @@ setlocal
 cd /d %~dp0\..\..\src\csharp
 
 if not "%CONFIG%" == "gcov" (
-  @rem Run tests for assembly passed as 1st arg.
-
-  @rem set UUID variable to a random GUID, we will use it to put TestResults.xml to a dedicated directory, so that parallel test runs don't collide
-  for /F %%i in ('powershell -Command "[guid]::NewGuid().ToString()"') do (set UUID=%%i)
-
-  packages\NUnit.Runners.2.6.4\tools\nunit-console-x86.exe /domain:None -labels "%1/bin/Debug/%1.dll" -work test-results/%UUID% || goto :error
+  packages\NUnit.Runners.2.6.4\tools\nunit-console-x86.exe %* || goto :error
 ) else (
   @rem Run all tests with code coverage
 
-  packages\OpenCover.4.6.166\tools\OpenCover.Console.exe -target:"packages\NUnit.Runners.2.6.4\tools\nunit-console-x86.exe" -targetdir:"." -targetargs:"/domain:None -labels Grpc.Core.Tests/bin/Debug/Grpc.Core.Tests.dll Grpc.IntegrationTesting/bin/Debug/Grpc.IntegrationTesting.dll Grpc.Examples.Tests/bin/Debug/Grpc.Examples.Tests.dll Grpc.HealthCheck.Tests/bin/Debug/Grpc.HealthCheck.Tests.dll" -filter:"+[Grpc.Core]*"  -register:user -output:coverage_results.xml || goto :error
+  packages\OpenCover.4.6.166\tools\OpenCover.Console.exe -target:"packages\NUnit.Runners.2.6.4\tools\nunit-console-x86.exe" -targetdir:"." -targetargs:"%*" -filter:"+[Grpc.Core]*"  -register:user -output:coverage_results.xml || goto :error
 
   packages\ReportGenerator.2.3.2.0\tools\ReportGenerator.exe -reports:"coverage_results.xml" -targetdir:"..\..\reports\csharp_coverage" -reporttypes:"Html;TextSummary" || goto :error
 

tools/run_tests/run_csharp.sh

@@ -31,38 +31,25 @@
 set -ex
 
 CONFIG=${CONFIG:-opt}
-
 NUNIT_CONSOLE="mono packages/NUnit.Runners.2.6.4/tools/nunit-console.exe"
 
-if [ "$CONFIG" = "dbg" ] || [ "$CONFIG" = "gcov" ]
-then
-  MSBUILD_CONFIG="Debug"
-else
-  MSBUILD_CONFIG="Release"
-fi
-
 # change to gRPC repo root
 cd $(dirname $0)/../..
 
-root=`pwd`
-export LD_LIBRARY_PATH=$root/libs/$CONFIG
+# path needs to be absolute
+export LD_LIBRARY_PATH=$(pwd)/libs/$CONFIG
+
+(cd src/csharp; $NUNIT_CONSOLE $@)
 
 if [ "$CONFIG" = "gcov" ]
 then
-  (cd src/csharp; $NUNIT_CONSOLE -labels \
-      "Grpc.Core.Tests/bin/$MSBUILD_CONFIG/Grpc.Core.Tests.dll" \
-      "Grpc.Examples.Tests/bin/$MSBUILD_CONFIG/Grpc.Examples.Tests.dll" \
-      "Grpc.HealthCheck.Tests/bin/$MSBUILD_CONFIG/Grpc.HealthCheck.Tests.dll" \
-      "Grpc.IntegrationTesting/bin/$MSBUILD_CONFIG/Grpc.IntegrationTesting.dll")
-
+  # Generate the csharp extension coverage report
   gcov objs/gcov/src/csharp/ext/*.o
   lcov --base-directory . --directory . -c -o coverage.info
   lcov -e coverage.info '**/src/csharp/ext/*' -o coverage.info
   genhtml -o reports/csharp_ext_coverage --num-spaces 2 \
     -t 'gRPC C# native extension test coverage' coverage.info \
     --rc genhtml_hi_limit=95 --rc genhtml_med_limit=80 --no-prefix
-else
-  (cd src/csharp; $NUNIT_CONSOLE -labels "$1/bin/$MSBUILD_CONFIG/$1.dll")
 fi
 
 

tools/run_tests/run_tests.py

@@ -47,6 +47,7 @@ import tempfile
 import traceback
 import time
 import urllib2
+import uuid
 
 import jobset
 import report_utils
@@ -336,26 +337,42 @@ class CSharpLanguage(object):
     self.platform = platform_string()
 
   def test_specs(self, config, args):
-    assemblies = ['Grpc.Core.Tests',
-                  'Grpc.Examples.Tests',
-                  'Grpc.HealthCheck.Tests',
-                  'Grpc.IntegrationTesting']
+    with open('src/csharp/tests.json') as f:
+      tests_json = json.load(f)
+    assemblies = tests_json['assemblies']
+    tests = tests_json['tests']
+
+    msbuild_config = _WINDOWS_CONFIG[config.build_config]
+    assembly_files = ['%s/bin/%s/%s.dll' % (a, msbuild_config, a)
+                      for a in assemblies]
+
+    extra_args = ['-labels'] + assembly_files
+
     if self.platform == 'windows':
-      cmd = 'tools\\run_tests\\run_csharp.bat'
+      script_name = 'tools\\run_tests\\run_csharp.bat'
+      extra_args += ['-domain=None']
     else:
-      cmd = 'tools/run_tests/run_csharp.sh'
+      script_name = 'tools/run_tests/run_csharp.sh'
 
     if config.build_config == 'gcov':
       # On Windows, we only collect C# code coverage.
       # On Linux, we only collect coverage for native extension.
       # For code coverage all tests need to run as one suite.
-      return [config.job_spec([cmd], None,
-              environ=_FORCE_ENVIRON_FOR_WRAPPERS)]
+      return [config.job_spec([script_name] + extra_args, None,
+                              shortname='csharp.coverage',
+                              environ=_FORCE_ENVIRON_FOR_WRAPPERS)]
     else:
-      return [config.job_spec([cmd, assembly],
-              None, shortname=assembly,
-              environ=_FORCE_ENVIRON_FOR_WRAPPERS)
-              for assembly in assemblies]
+      specs = []
+      for test in tests:
+        cmdline = [script_name, '-run=%s' % test] + extra_args
+        if self.platform == 'windows':
+          # use different output directory for each test to prevent
+          # TestResult.xml clash between parallel test runs.
+          cmdline += ['-work=test-result/%s' % uuid.uuid4()]
+        specs.append(config.job_spec(cmdline, None,
+                                     shortname='csharp.%s' % test,
+                                     environ=_FORCE_ENVIRON_FOR_WRAPPERS))
+      return specs
 
   def pre_build_steps(self):
     if self.platform == 'windows':
@@ -509,6 +526,7 @@ _LANGUAGES = {
 _WINDOWS_CONFIG = {
     'dbg': 'Debug',
     'opt': 'Release',
+    'gcov': 'Release',
     }