// currently disabled in -race mode.

var fixedSeed = MakeSeed()

// Sanity checks.
// hash should not depend on values outside key.
// hash should not depend on alignment.
func TestSmhasherSanity(t *testing.T) {
	t.Parallel()
	r := rand.New(rand.NewSource(1234))
	const REP = 10
	const KEYMAX = 128
	const PAD = 16
	const OFFMAX = 16
	for k := 0; k < REP; k++ {
		for n := 0; n < KEYMAX; n++ {
			for i := 0; i < OFFMAX; i++ {

//go:build unix

package os_test

import (
	"errors"
	"internal/testenv"
	"math"
	. "os"
	"runtime"
	"syscall"
	"testing"
)

func TestErrProcessDone(t *testing.T) {
	testenv.MustHaveGoBuild(t)
	t.Parallel()

	p, err := StartProcess(testenv.GoToolPath(t), []string{"go"}, &ProcAttr{})
	if err != nil {
		t.Fatalf("starting test process: %v", err)
	}
	p.Wait()
	if got := p.Signal(Kill); got != ErrProcessDone {

class ScalaConcurrencyIntegrationTest extends AbstractIntegrationSpec {
    @Rule BlockingHttpServer httpServer = new BlockingHttpServer()

    @Issue("https://github.com/gradle/gradle/issues/14434")
    def "can run tests in parallel with project dependencies"() {
        given:
        httpServer.expectConcurrent(':a:test', ':b:test', ':c:test', ':d:test')
        httpServer.start()

        settingsFile << """
            include 'a', 'b', 'c', 'd'

	}
	const payloadSize = 512
	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
	payload := make([]byte, payloadSize)
	_, err = rng.Read(payload)
	errFatal(err)

	// Wait for all to connect
	// Parallel writes per server.
	b.Run("bytes", func(b *testing.B) {
		for par := 1; par <= 32; par *= 2 {
			b.Run("par="+strconv.Itoa(par*runtime.GOMAXPROCS(0)), func(b *testing.B) {
				defer timeout(60 * time.Second)()

    CompositeConfiguration compositeBuild

    String daemonMemory
    String compilerMemory
    String testRunnerMemory
    Map<String, String> systemProperties
    String[] featurePreviews
    boolean parallel
    int maxWorkers
    int maxParallelForks
    int testForkEvery
    boolean useTestNG
    Map<String, String> fileToChangeByScenario
}

@Builder(prefix = "with",
    builderStrategy = ExternalStrategy,

import org.gradle.test.precondition.Requires
import org.gradle.test.preconditions.IntegTestPreconditions
import org.junit.Rule

@Requires(IntegTestPreconditions.NotParallelExecutor) // no point, always runs in parallel
public class ParallelProjectExecutionIntegrationTest extends AbstractIntegrationSpec {

    @Rule public final BlockingHttpServer blockingServer = new BlockingHttpServer()

    def setup() {

        when:
        def result = runner.run()

        then:
        result.assertCurrentVersionHasNotRegressed()

        cleanup:
        stopServer()
    }

    def "resolves dependencies from external repository (parallel)"() {
        startServer()

        given:

    @Rule
    BlockingHttpServer server = new BlockingHttpServer()

    def setup() {
        server.start()
    }

    def "projects are configured and models created in parallel when project scoped model is queried concurrently"() {
        withSomeToolingModelBuilderPluginInBuildSrc("""
            ${server.callFromBuildUsingExpression("'model-' + project.name")}
        """)

package os_test

import (
	"bytes"
	"fmt"
	"internal/testenv"
	. "os"
	"path/filepath"
	"runtime"
	"strconv"
	"strings"
	"testing"
)

func TestRemoveAll(t *testing.T) {
	t.Parallel()

	tmpDir := t.TempDir()
	if err := RemoveAll(""); err != nil {
		t.Errorf("RemoveAll(\"\"): %v; want nil", err)
	}

	file := filepath.Join(tmpDir, "file")
	path := filepath.Join(tmpDir, "_TestRemoveAll_")

	}

	if !os.SameFile(fi, fi2) {
		t.Errorf("os.Open(%q).Stat() and os.Stat(%q) are not the same file", link, link)
	}
}

func TestDirAndSymlinkStats(t *testing.T) {
	testenv.MustHaveSymlink(t)
	t.Parallel()

	tmpdir := t.TempDir()
	dir := filepath.Join(tmpdir, "dir")
	if err := os.Mkdir(dir, 0777); err != nil {
		t.Fatal(err)
	}
	testDirStats(t, dir)

	dirlink := filepath.Join(tmpdir, "link")