Swarming: conditionally run tests on swarming in chromium_trybot recipe.

scripts/slave/recipes/chromium_trybot.expected/swarming_deapply_patch.json

 [
   {
     "abort_on_failure": true,
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/bot_update.py",
       "--master",
       "tryserver.chromium",
       "--builder",
@@ skipping 61 matching lines @@
     "cmd": [
       "python",
       "-u",
       "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
       "[SLAVE_BUILD]/src/testing/buildbot/chromium_trybot.json",
       "/path/to/tmp/json"
     ],
     "name": "read test spec",
     "~followup_annotations": [
       "@@@STEP_TEXT@path: testing/buildbot/chromium_trybot.json@@@",
-      "@@@STEP_LOG_LINE@json.output@[@@@",
-      "@@@STEP_LOG_LINE@json.output@  \"base_unittests\", @@@",
-      "@@@STEP_LOG_LINE@json.output@  {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"platforms\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"linux\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"mac\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    ], @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"test\": \"mojo_common_unittests\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output@  {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"args\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"--test-launcher-print-test-stdio=always\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    ], @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"chromium_configs\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"chromium_chromeos\", @@@",
-      "@@@STEP_LOG_LINE@json.output@      \"chromium_chromeos_clang\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    ], @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"platforms\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"linux\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    ], @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"test\": \"sandbox_linux_unittests\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  }, @@@",
-      "@@@STEP_LOG_LINE@json.output@  {@@@",
-      "@@@STEP_LOG_LINE@json.output@    \"exclude_builders\": [@@@",
-      "@@@STEP_LOG_LINE@json.output@      \"tryserver.chromium:win_chromium_x64_rel\"@@@",
-      "@@@STEP_LOG_LINE@json.output@    ], @@@",
-      "@@@STEP_LOG_LINE@json.output@    \"test\": \"browser_tests\"@@@",
-      "@@@STEP_LOG_LINE@json.output@  }@@@",
-      "@@@STEP_LOG_LINE@json.output@]@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"gtest_tests\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@    {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"swarming\": true, @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"test\": \"base_unittests\"@@@",
+      "@@@STEP_LOG_LINE@json.output@    }, @@@",
+      "@@@STEP_LOG_LINE@json.output@    {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"swarming\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"platforms\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@          \"linux\"@@@",
+      "@@@STEP_LOG_LINE@json.output@        ]@@@",
+      "@@@STEP_LOG_LINE@json.output@      }, @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"test\": \"browser_tests\"@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  ]@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "abort_on_failure": false,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
     "env": {
-      "GYP_DEFINES": "component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 use_goma=1"
+      "GYP_DEFINES": "component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 test_isolation_mode=archive test_isolation_outdir=https://isolateserver.appspot.com use_goma=1"
     },
     "name": "gclient runhooks"
   },
   {
+    "cmd": [
+      "python",
+      "-u",
+      "[SLAVE_BUILD]/src/tools/swarming_client/swarming.py",
+      "--version"
+    ],
+    "name": "swarming.py --version",
+    "stdout": "/path/to/tmp/",
+    "~followup_annotations": [
+      "@@@STEP_TEXT@0.4.8@@@"
+    ]
+  },
+  {
     "abort_on_failure": false,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/compile.py",
       "--target",
       "Release",
       "--src-dir",
       "[SLAVE_BUILD]/src",
       "--build-tool",
       "ninja",
       "--compiler",
       "goma",
       "--goma-dir",
       "[BUILD]/goma",
       "--",
       "all",
-      "base_unittests",
-      "mojo_common_unittests",
-      "browser_tests",
+      "base_unittests_run",
+      "browser_tests_run",
       "chrome"
     ],
     "name": "compile (with patch)"
   },
   {
+    "abort_on_failure": true,
+    "cmd": [
+      "python",
+      "-u",
+      "[BUILD]/scripts/slave/recipe_modules/isolate/resources/find_isolated_tests.py",
+      "--build-dir",
+      "[SLAVE_BUILD]/src/out/Release",
+      "--output-json",
+      "/path/to/tmp/json"
+    ],
+    "name": "find isolated tests",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"base_unittests\": \"[dummy hash for base_unittests]\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"browser_tests\": \"[dummy hash for browser_tests]\"@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@SET_BUILD_PROPERTY@swarm_hashes@{\"base_unittests\": \"[dummy hash for base_unittests]\", \"browser_tests\": \"[dummy hash for browser_tests]\"}@@@"
+    ]
+  },
+  {
     "allow_subannotations": true,
     "always_run": true,
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/runtest.py",
       "--target",
       "Release",
       "--xvfb",
       "--factory-properties",
@@ skipping 34 matching lines @@
       "--builder-name=linux_chromium_rel",
       "--slave-name=TestSlavename",
       "--build-number=571",
       "--run-python-script",
       "[SLAVE_BUILD]/src/tools/perf/run_tests",
       "--browser=release"
     ],
     "name": "telemetry_perf_unittests"
   },
   {
+    "always_run": true,
+    "cmd": [
+      "python",
+      "-u",
+      "[SLAVE_BUILD]/src/tools/swarming_client/swarming.py",
+      "trigger",
+      "--swarming",
+      "https://chromium-swarm.appspot.com",
+      "--isolate-server",
+      "https://isolateserver.appspot.com",
+      "--priority",
+      "200",
+      "--shards",
+      "1",
+      "--task-name",
+      "base_unittests (with patch)/Linux/[dummy hash for base_unittests]/linux_chromium_rel/571",
+      "--dimension",
+      "os",
+      "Linux",
+      "[dummy hash for base_unittests]",
+      "--",
+      "--test-launcher-summary-output=${ISOLATED_OUTDIR}/output.json"
+    ],
+    "name": "[trigger] base_unittests (with patch)"
+  },
+  {
+    "always_run": true,
+    "cmd": [
+      "python",
+      "-u",
+      "[SLAVE_BUILD]/src/tools/swarming_client/swarming.py",
+      "trigger",
+      "--swarming",
+      "https://chromium-swarm.appspot.com",
+      "--isolate-server",
+      "https://isolateserver.appspot.com",
+      "--priority",
+      "200",
+      "--shards",
+      "1",
+      "--task-name",
+      "browser_tests (with patch)/Linux/[dummy hash for browser_tests]/linux_chromium_rel/571",
+      "--dimension",
+      "os",
+      "Linux",
+      "[dummy hash for browser_tests]",
+      "--",
+      "--test-launcher-summary-output=${ISOLATED_OUTDIR}/output.json"
+    ],
+    "name": "[trigger] browser_tests (with patch)"
+  },
+  {
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
       "[SLAVE_BUILD]/src/tools/checkdeps/checkdeps.py",
       "--json",
       "/path/to/tmp/json"
     ],
     "name": "checkdeps (with patch)",
     "~followup_annotations": [
@@ skipping 29 matching lines @@
     "cmd": [
       "python",
       "-u",
       "[SLAVE_BUILD]/src/tools/deps2git/deps2submodules.py",
       "--gitless",
       "[SLAVE_BUILD]/src/.DEPS.git"
     ],
     "name": "deps2submodules"
   },
   {
-    "allow_subannotations": true,
-    "always_run": true,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
-      "[BUILD]/scripts/slave/runtest.py",
-      "--target",
+      "[SLAVE_BUILD]/src/chrome/test/nacl_test_injection/buildbot_nacl_integration.py",
+      "--mode",
       "Release",
-      "--xvfb",
-      "--factory-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"linux_chromium_rel\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"chromium_trybot\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": null, \"rietveld\": \"https://codereview.chromium.org\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--build-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"linux_chromium_rel\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"chromium_trybot\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": null, \"rietveld\": \"https://codereview.chromium.org\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--annotate=gtest",
-      "--test-launcher-summary-output",
-      "/path/to/tmp/json",
-      "--builder-name=linux_chromium_rel",
-      "--slave-name=TestSlavename",
-      "--build-number=571",
-      "--parallel",
-      "base_unittests"
+      "--json_build_results_output_file",
+      "/path/to/tmp/json"
     ],
-    "name": "base_unittests (with patch)",
+    "name": "nacl_integration (with patch)",
     "~followup_annotations": [
-      "step returned non-zero exit code: 1",
-      "@@@STEP_TEXT@<br/>failures:<br/>Test.Two<br/>@@@",
-      "@@@STEP_FAILURE@@@"
+      "@@@STEP_LOG_LINE@json.output@[]@@@",
+      "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "allow_subannotations": true,
     "always_run": true,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
-      "[BUILD]/scripts/slave/runtest.py",
-      "--target",
-      "Release",
-      "--xvfb",
-      "--factory-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"linux_chromium_rel\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"chromium_trybot\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": null, \"rietveld\": \"https://codereview.chromium.org\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--build-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"linux_chromium_rel\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"chromium_trybot\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": null, \"rietveld\": \"https://codereview.chromium.org\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--annotate=gtest",
-      "--test-launcher-summary-output",
+      "[BUILD]/scripts/slave/recipe_modules/swarming/resources/collect_gtest_task.py",
+      "--swarming-client-dir",
+      "[SLAVE_BUILD]/src/tools/swarming_client",
+      "--temp-root-dir",
+      "[TMP_BASE]",
+      "--merged-test-output",
       "/path/to/tmp/json",
-      "--builder-name=linux_chromium_rel",
-      "--slave-name=TestSlavename",
-      "--build-number=571",
-      "--parallel",
-      "mojo_common_unittests"
+      "--",
+      "collect",
+      "--swarming",
+      "https://chromium-swarm.appspot.com",
+      "--shards",
+      "1",
+      "--decorate",
+      "--print-status-updates",
+      "base_unittests (with patch)/Linux/[dummy hash for base_unittests]/linux_chromium_rel/571"
     ],
-    "name": "mojo_common_unittests (with patch)"
+    "name": "[swarming] base_unittests (with patch)",
+    "~followup_annotations": [
+      "step returned non-zero exit code: 1",
+      "@@@STEP_TEXT@<br/>failures:<br/>Test.Two<br/>@@@",
+      "@@@STEP_FAILURE@@@"
+    ]
   },
   {
     "allow_subannotations": true,
     "always_run": true,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
-      "[BUILD]/scripts/slave/runtest.py",
-      "--target",
-      "Release",
-      "--xvfb",
-      "--factory-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"linux_chromium_rel\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"chromium_trybot\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": null, \"rietveld\": \"https://codereview.chromium.org\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--build-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"linux_chromium_rel\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"chromium_trybot\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": null, \"rietveld\": \"https://codereview.chromium.org\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--annotate=gtest",
-      "--test-launcher-summary-output",
+      "[BUILD]/scripts/slave/recipe_modules/swarming/resources/collect_gtest_task.py",
+      "--swarming-client-dir",
+      "[SLAVE_BUILD]/src/tools/swarming_client",
+      "--temp-root-dir",
+      "[TMP_BASE]",
+      "--merged-test-output",
       "/path/to/tmp/json",
-      "--builder-name=linux_chromium_rel",
-      "--slave-name=TestSlavename",
-      "--build-number=571",
-      "--parallel",
-      "browser_tests"
+      "--",
+      "collect",
+      "--swarming",
+      "https://chromium-swarm.appspot.com",
+      "--shards",
+      "1",
+      "--decorate",
+      "--print-status-updates",
+      "browser_tests (with patch)/Linux/[dummy hash for browser_tests]/linux_chromium_rel/571"
     ],
-    "name": "browser_tests (with patch)"
-  },
-  {
-    "can_fail_build": false,
-    "cmd": [
-      "python",
-      "-u",
-      "[SLAVE_BUILD]/src/chrome/test/nacl_test_injection/buildbot_nacl_integration.py",
-      "--mode",
-      "Release",
-      "--json_build_results_output_file",
-      "/path/to/tmp/json"
-    ],
-    "name": "nacl_integration (with patch)",
-    "~followup_annotations": [
-      "@@@STEP_LOG_LINE@json.output@[]@@@",
-      "@@@STEP_LOG_END@json.output@@@"
-    ]
+    "name": "[swarming] browser_tests (with patch)"
   },
   {
     "abort_on_failure": true,
     "always_run": true,
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/bot_update.py",
       "--master",
       "tryserver.chromium",
@@ skipping 42 matching lines @@
   },
   {
     "always_run": true,
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]/gclient.py",
       "runhooks"
     ],
     "env": {
-      "GYP_DEFINES": "component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 use_goma=1"
+      "GYP_DEFINES": "component=static_library dcheck_always_on=1 fastbuild=1 gomadir='[BUILD]/goma' target_arch=x64 test_isolation_mode=archive test_isolation_outdir=https://isolateserver.appspot.com use_goma=1"
     },
-    "name": "gclient runhooks (2)",
-    "~followup_annotations": [
-      "step returned non-zero exit code: 1",
-      "@@@STEP_FAILURE@@@"
-    ]
+    "name": "gclient runhooks (2)"
   },
   {
     "abort_on_failure": false,
     "always_run": true,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
       "[BUILD]/scripts/slave/compile.py",
       "--target",
       "Release",
       "--src-dir",
       "[SLAVE_BUILD]/src",
       "--build-tool",
       "ninja",
       "--compiler",
       "goma",
       "--goma-dir",
       "[BUILD]/goma",
       "--",
-      "base_unittests"
+      "base_unittests_run"
     ],
     "name": "compile (without patch)"
   },
   {
+    "abort_on_failure": true,
+    "always_run": true,
+    "cmd": [
+      "python",
+      "-u",
+      "[BUILD]/scripts/slave/recipe_modules/isolate/resources/find_isolated_tests.py",
+      "--build-dir",
+      "[SLAVE_BUILD]/src/out/Release",
+      "--output-json",
+      "/path/to/tmp/json"
+    ],
+    "name": "find isolated tests (2)",
+    "~followup_annotations": [
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"base_unittests\": \"[dummy hash for base_unittests]\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"browser_tests\": \"[dummy hash for browser_tests]\"@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@SET_BUILD_PROPERTY@swarm_hashes@{\"base_unittests\": \"[dummy hash for base_unittests]\", \"browser_tests\": \"[dummy hash for browser_tests]\"}@@@"
+    ]
+  },
+  {
+    "always_run": true,
+    "cmd": [
+      "python",
+      "-u",
+      "[SLAVE_BUILD]/src/tools/swarming_client/swarming.py",
+      "trigger",
+      "--swarming",
+      "https://chromium-swarm.appspot.com",
+      "--isolate-server",
+      "https://isolateserver.appspot.com",
+      "--priority",
+      "200",
+      "--shards",
+      "1",
+      "--task-name",
+      "base_unittests (without patch)/Linux/[dummy hash for base_unittests]/linux_chromium_rel/571",
+      "--dimension",
+      "os",
+      "Linux",
+      "[dummy hash for base_unittests]",
+      "--",
+      "--gtest_filter=Test.Two",
+      "--test-launcher-summary-output=${ISOLATED_OUTDIR}/output.json"
+    ],
+    "name": "[trigger] base_unittests (without patch)"
+  },
+  {
     "allow_subannotations": true,
     "always_run": true,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
-      "[BUILD]/scripts/slave/runtest.py",
-      "--target",
-      "Release",
-      "--xvfb",
-      "--factory-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"linux_chromium_rel\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"chromium_trybot\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": null, \"rietveld\": \"https://codereview.chromium.org\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--build-properties",
-      "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"linux_chromium_rel\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"tryserver.chromium\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"chromium_trybot\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": null, \"rietveld\": \"https://codereview.chromium.org\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
-      "--annotate=gtest",
-      "--test-launcher-summary-output",
+      "[BUILD]/scripts/slave/recipe_modules/swarming/resources/collect_gtest_task.py",
+      "--swarming-client-dir",
+      "[SLAVE_BUILD]/src/tools/swarming_client",
+      "--temp-root-dir",
+      "[TMP_BASE]",
+      "--merged-test-output",
       "/path/to/tmp/json",
-      "--builder-name=linux_chromium_rel",
-      "--slave-name=TestSlavename",
-      "--build-number=571",
-      "--parallel",
-      "base_unittests",
-      "Test.Two"
+      "--",
+      "collect",
+      "--swarming",
+      "https://chromium-swarm.appspot.com",
+      "--shards",
+      "1",
+      "--decorate",
+      "--print-status-updates",
+      "base_unittests (without patch)/Linux/[dummy hash for base_unittests]/linux_chromium_rel/571"
     ],
-    "name": "base_unittests (without patch)",
-    "~followup_annotations": [
-      "step returned non-zero exit code: 1",
-      "@@@STEP_TEXT@<br/>failures:<br/>Test.Two<br/>@@@",
-      "@@@STEP_FAILURE@@@"
-    ]
+    "name": "[swarming] base_unittests (without patch)"
   },
   {
     "always_run": true,
     "cmd": [
       "python",
       "-u",
       "\nimport sys, json\nfailures = json.load(open(sys.argv[1], 'rb'))\n\nsuccess = True\n\nif failures['new']:\n  success = False\n  print 'New failures:'\n  for f in failures['new']:\n    print f\n\nif failures['ignored']:\n  print 'Ignored failures:'\n  for f in failures['ignored']:\n    print f\n\nsys.exit(0 if success else 1)\n",
-      "{\"ignored\": [\"Test.Two\"], \"new\": []}"
+      "{\"ignored\": [], \"new\": [\"Test.Two\"]}"
     ],
     "name": "base_unittests",
     "~followup_annotations": [
-      "@@@STEP_TEXT@<br/>ignored:<br/>Test.Two<br/>@@@",
+      "@@@STEP_TEXT@<br/>failures:<br/>Test.Two<br/>@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys, json@@@",
       "@@@STEP_LOG_LINE@python.inline@failures = json.load(open(sys.argv[1], 'rb'))@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@success = True@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@if failures['new']:@@@",
       "@@@STEP_LOG_LINE@python.inline@  success = False@@@",
       "@@@STEP_LOG_LINE@python.inline@  print 'New failures:'@@@",
       "@@@STEP_LOG_LINE@python.inline@  for f in failures['new']:@@@",
       "@@@STEP_LOG_LINE@python.inline@    print f@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@if failures['ignored']:@@@",
       "@@@STEP_LOG_LINE@python.inline@  print 'Ignored failures:'@@@",
       "@@@STEP_LOG_LINE@python.inline@  for f in failures['ignored']:@@@",
       "@@@STEP_LOG_LINE@python.inline@    print f@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@sys.exit(0 if success else 1)@@@",
       "@@@STEP_LOG_END@python.inline@@@",
-      "@@@STEP_WARNINGS@@@"
+      "@@@STEP_FAILURE@@@"
     ]
   }
 ]