[test][cobalt-client] Relocate unit tests to exist alongside source

Change-Id: I0f9b5d25d3ac30cdf9ea980dfa73b7dbac2bef03

zircon/system/ulib/cobalt-client/test/BUILD.gn

@@ -11,11 +11,31 @@ group("test") {
 
 test("cobalt-client-unit") {
   sources = [
+    "cobalt_logger_test.cpp",
+    "collector_test.cpp",
+    "counter_test.cpp",
+    "histogram_test.cpp",
     "in-memory-logger-test.cpp",
+    "main.cpp",
+    "metric_options_test.cpp",
+    "timer_test.cpp",
+    "types_internal_test.cpp",
   ]
   deps = [
+    "$zx/system/fidl/fuchsia-cobalt:c",
+    "$zx/system/fidl/fuchsia-io:c",
+    "$zx/system/fidl/fuchsia-mem:c",
+    "$zx/system/ulib/async",
+    "$zx/system/ulib/async:async-cpp",
+    "$zx/system/ulib/async:async-default",
+    "$zx/system/ulib/async-loop",
+    "$zx/system/ulib/async-loop:async-loop-cpp",
     "$zx/system/ulib/cobalt-client",
     "$zx/system/ulib/cobalt-client:in-memory-logger",
+    "$zx/system/ulib/fidl",
+    "$zx/system/ulib/fidl-utils",
+    "$zx/system/ulib/sync",
+    "$zx/system/ulib/unittest",
     "$zx/system/ulib/zxtest",
   ]
 }

zircon/system/ulib/cobalt-client/test/main.cpp

+// Copyright 2019 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <unittest/unittest.h>
+#include <zxtest/c/zxtest.h>
+
+int main(int argc, char** argv) {
+    const bool success = unittest_run_all_tests(argc, argv);
+    if (!success) {
+        return EXIT_FAILURE;
+    }
+
+    const bool zxtest_success = RUN_ALL_TESTS(argc, argv) == 0;
+    if (!zxtest_success) {
+        return EXIT_FAILURE;
+    }
+    return EXIT_SUCCESS;
+}

zircon/system/utest/BUILD.gn

@@ -99,7 +99,6 @@ if (current_cpu != "") {
       "channel-fatal",
       "chromeos-disk-setup",
       "cleanup",
-      "cobalt-client",
       "compiler",
       "core",
       "cprng",

zircon/system/utest/cobalt-client/BUILD.gn

-# Copyright 2019 The Fuchsia Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-test("cobalt-client") {
-  sources = [
-    "cobalt_logger_test.cpp",
-    "collector_test.cpp",
-    "counter_test.cpp",
-    "histogram_test.cpp",
-    "metric_options_test.cpp",
-    "timer_test.cpp",
-    "types_internal_test.cpp",
-  ]
-  deps = [
-    "$zx/system/fidl/fuchsia-cobalt:c",
-    "$zx/system/fidl/fuchsia-io:c",
-    "$zx/system/fidl/fuchsia-mem:c",
-    "$zx/system/ulib/async",
-    "$zx/system/ulib/async:async-cpp",
-    "$zx/system/ulib/async:async-default",
-    "$zx/system/ulib/async-loop",
-    "$zx/system/ulib/async-loop:async-loop-cpp",
-    "$zx/system/ulib/cobalt-client",
-    "$zx/system/ulib/fbl",
-    "$zx/system/ulib/fdio",
-    "$zx/system/ulib/fidl",
-    "$zx/system/ulib/fidl-utils",
-    "$zx/system/ulib/sync",
-    "$zx/system/ulib/unittest",
-    "$zx/system/ulib/zircon",
-    "$zx/system/ulib/zx",
-  ]
-}