n, err := w.Write([]byte("abcd"))
	w.Close()
	if err != nil {
		t.Errorf("DeadlineWriter should succeed but failed with %s", err)
	}
	if n != 4 {
		t.Errorf("DeadlineWriter should succeed but should have only written 4 bytes, but returned %d instead", n)
	}
}

func TestCloseOnWriter(t *testing.T) {
	writer := WriteOnClose(io.Discard)
	if writer.HasWritten() {

		if err := assertResponseStatusCode(resultGot, http.StatusOK); err != nil {
			t.Errorf("%s", err.Error())
		}
		resultGot = doer.Do(newClient(true), shouldUseNewConnection(t), "/echo?message=request-on-a-new-tcp-connection-should-succeed", time.Second)
		if err := assertResponseStatusCode(resultGot, http.StatusOK); err != nil {

        normaliseLineSeparators(t.message).startsWith(normaliseLineSeparators(expectedMessage))
        t.buildResult.taskPaths(SUCCESS) == [':helloWorld']
    }

    def "throws when build is expected to succeed but fails"() {
        given:
        buildScript """
            task helloWorld {
                doLast {
                    throw new GradleException('Unexpected exception')
                }
            }

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.testkit.runner;

/**
 * Thrown when executing a build that was expected to succeed, but failed.
 *
 * @since 2.6
 * @see GradleRunner#build()
 */
public class UnexpectedBuildFailure extends UnexpectedBuildResultException {
    public UnexpectedBuildFailure(String message, BuildResult buildResult) {

func TestRevisionedUpgrade(t *testing.T) {
	// nolint: staticcheck
	framework.NewTest(t).
		RequiresSingleCluster().
		RequiresLocalControlPlane().
		// Requires installation of CPs from manifests, won't succeed
		// if existing CPs have different root cert
		Label(label.CustomSetup).
		Run(func(t framework.TestContext) {
			t.Skip("https://github.com/istio/istio/pull/46213")

go get -x vcs-test.golang.org/git/issue47650.git/cmd/issue47650@21535ef346c3
stderr '^go: added vcs-test.golang.org/git/issue47650.git v0.1.1-0.20210811175200-21535ef346c3$'

# Explicitly requesting that same version should succeed, fetching additional
# history for the requested commit as needed in order to validate the
# pseudo-version base.
go clean -modcache
cp go.mod.orig go.mod

cd $WORK/m
env GO111MODULE=on
env GOPROXY=''

# Modules: Try go get -d of HTTP-only repo (should fail).
! go get -d insecure.go-get-issue-15410.appspot.com/pkg/p

# Modules: Try again with GOINSECURE (should succeed).
env GOINSECURE=insecure.go-get-issue-15410.appspot.com
env GONOSUMDB=insecure.go-get-issue-15410.appspot.com
go get -d insecure.go-get-issue-15410.appspot.com/pkg/p

# Modules: Try updating without GOINSECURE (should fail).

exec git log --pretty=%T
cmp stdout $WORK/.git-trees

rm .git/objects/66/400c89b45cc96da36d232844dbf9ea5daa6bcf

# Build the module, which should succeed
go build -v -buildvcs=true -o test
go version -m test
stdout '^\tbuild\tvcs.revision=fe3c8204d2332a731166269932dd23760c1b576a$'

-- $WORK/repo/go.mod --
module github.com/golang/issue65339

go 1.20

//go:build linux

package os

import (
	"runtime"
	"syscall"
	"unsafe"
)

const _P_PID = 1

// blockUntilWaitable attempts to block until a call to p.Wait will
// succeed immediately, and reports whether it has done so.
// It does not actually call p.Wait.
func (p *Process) blockUntilWaitable() (bool, error) {
	// The waitid system call expects a pointer to a siginfo_t,

		return types.AssignableTo(V, T)
	}

	// V and T have the same (non-zero) number of type params. Instantiate both
	// with the type parameters of V. This must always succeed for V, and will
	// succeed for T if and only if the type set of each type parameter of V is a
	// subset of the type set of the corresponding type parameter of T, meaning