"hash"
	"internal/testenv"
	"io"
	"log"
	"os"
	"path/filepath"
	"reflect"
	"strings"
	"testing"
	"time"

	"cmd/go/internal/cfg"
	"cmd/go/internal/modfetch/codehost"
	"cmd/go/internal/vcweb/vcstest"

	"golang.org/x/mod/sumdb/dirhash"
)

func TestMain(m *testing.M) {
	flag.Parse()
	if err := testMain(m); err != nil {
		log.Fatal(err)
	}
}

func testMain(m *testing.M) (err error) {

	kelvin       = '\u212a'
	smallLongEss = '\u017f'
)

// foldFunc returns one of four different case folding equivalence
// functions, from most general (and slow) to fastest:
//
// 1) bytes.EqualFold, if the key s contains any non-ASCII UTF-8
// 2) equalFoldRight, if s contains special folding ASCII ('k', 'K', 's', 'S')
// 3) asciiEqualFold, no special, but includes non-letters (including _)

		}
		klog.Warningf("Different API server versions in the cluster were discovered: %v. Please upgrade your control plane"+
			" nodes to the same version of Kubernetes", strings.Join(verMsg, ", "))
	}

	// Get the lastest cluster version
	clusterVersion, err := getLatestClusterVersion(kubeAPIServerVersions)
	if err != nil {
		return upgrades, err
	}
	clusterVersionStr := clusterVersion.String()

      /*
       * The following static final fields exist for performance reasons.
       *
       * In UnsignedBytesBenchmark, accessing the following objects via static final fields is the
       * fastest (more than twice as fast as the Java implementation, vs ~1.5x with non-final static
       * fields, on x86_32) under the Hotspot server compiler. The reason is obviously that the

It was found that the directory staging committer was the fastest among the three, S3A connector should be configured with the following parameters for optimal results:

```
cat ${HADOOP_CONF_DIR}/core-site.xml | kv-pairify | grep "s3a"

fs.s3a.access.key=minio

        project.mainComponent.baseName == 'app'
        project.testComponent instanceof CppTestSuite
        project.testComponent.name == 'test'
        project.testComponent.baseName == 'appTest'
        project.testComponent.binaries[0].compilationDetails.userHeaderSearchPaths == [file('src/test/headers'), file('src/main/headers')]
    }

For testing with the build cache, the build cache directory should be cleaned between tests.
The easiest way to accomplish this is to configure the local build cache to use a temporary directory.

=== Example: Clean build cache between tests

[source,groovy,indent=0]
.BuildLogicFunctionalTest.groovy
----

	"istio.io/istio/pilot/pkg/serviceregistry/util/xdsfake"
	"istio.io/istio/pilot/pkg/xds"
	"istio.io/istio/pilot/pkg/xds/endpoints"
	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pilot/test/xdstest"
	"istio.io/istio/pkg/adsc"
	"istio.io/istio/pkg/cluster"
	"istio.io/istio/pkg/config"
	"istio.io/istio/pkg/config/constants"
	"istio.io/istio/pkg/config/mesh"
	"istio.io/istio/pkg/config/schema/collections"

			resp = xdsc.RequestResponseAck(t, nil)
		})
	}, retry.Timeout(time.Second*15), retry.Delay(time.Millisecond*200))

	sdsStreams := map[string]*xds.AdsTest{}
	gotKeys := []string{}
	for _, res := range xdstest.ExtractSecretResources(t, resp.Resources) {
		sds := xds.NewSdsTest(t, setupDownstreamConnectionUDS(t, security.WorkloadIdentitySocketPath)).
			WithMetadata(meta).

//
// However the level of tolerance to skew rate can be configured by setting
// RenewDeadline and LeaseDuration appropriately. The tolerance expressed as a
// maximum tolerated ratio of time passed on the fastest node to time passed on
// the slowest node can be approximately achieved with a configuration that sets
// the same ratio of LeaseDuration to RenewDeadline. For example if a user wanted