}

// run runs the command and requires that it succeeds.
func (r runner) run(t *testing.T, args ...string) {
	t.Helper()
	cmd := testenv.Command(t, args[0], args[1:]...)
	cmd.Dir = r.Dir
	cmd.Env = slices.Clip(r.Env)
	if r.Dir != "" {
		cmd.Env = append(cmd.Env, "PWD="+r.Dir)
	}
	out, err := cmd.CombinedOutput()
	if err != nil {
		t.Logf("> %s\n", strings.Join(args, " "))
		t.Fatalf("command failed: %s\n%s", err, out)

	return &c2
}

func (c *captureHandler) WithGroup(name string) Handler {
	c.mu.Lock()
	defer c.mu.Unlock()
	var c2 captureHandler
	c2.r = c.r
	c2.attrs = c.attrs
	c2.groups = append(slices.Clip(c.groups), name)
	return &c2
}

func (c *captureHandler) clear() {
	c.mu.Lock()
	defer c.mu.Unlock()
	c.ctx = nil
	c.r = Record{}
}

type discardHandler struct {
	disabled bool

pkg slices, func BinarySearchFunc[$0 interface{ ~[]$1 }, $1 interface{}, $2 interface{}]($0, $2, func($1, $2) int) (int, bool) #60091
pkg slices, func Clip[$0 interface{ ~[]$1 }, $1 interface{}]($0) $0 #57433
pkg slices, func Clone[$0 interface{ ~[]$1 }, $1 interface{}]($0) $0 #57433
pkg slices, func Compact[$0 interface{ ~[]$1 }, $1 comparable]($0) $0 #57433

				// writes to pointer-containing types will do this.
				if d := off % ptrSize; d != 0 {
					off -= d
					size += d
				}
				if d := size % ptrSize; d != 0 {
					size += ptrSize - d
				}
				// Clip to the 64 words that we track.
				min := off
				max := off + size
				if min < 0 {
					min = 0
				}
				if max > 64*ptrSize {
					max = 64 * ptrSize
				}

    font-family: "Ubuntu Mono", courier, monospace;
    text-shadow: none;
}

.signature .literal {
    color: #04598D;
    padding-left: 0.1em;
}

.sr-only {
    border: 0;
    clip: rect(0, 0, 0, 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
}

/*
 * Code highlighting
 */

		return errTrailerEOF
	}
	if err != nil {
		return err
	}

	// Make sure there's a header terminator coming up, to prevent
	// a DoS with an unbounded size Trailer. It's not easy to
	// slip in a LimitReader here, as textproto.NewReader requires
	// a concrete *bufio.Reader. Also, we can't get all the way
	// back up to our conn's LimitedReader that *might* be backing

	if len(mainModuleMatches) > 0 && len(results) == 0 && modOnly == nil && errors.Is(err, fs.ErrNotExist) {
		return nil, nil, &QueryMatchesMainModulesError{
			Pattern: pattern,
			Query:   query,
		}
	}
	return slices.Clip(results), modOnly, err
}

// modulePrefixesExcludingTarget returns all prefixes of path that may plausibly
// exist as a module, excluding targetPrefix but otherwise including path

		var extra []string
		for _, path := range absTests {
			if strings.Contains(path, "$") {
				continue
			}
			path = vol + path
			extra = append(extra, path)
		}
		tests = append(slices.Clip(tests), extra...)
	}

	err = os.Chdir(absTestDirs[0])
	if err != nil {
		t.Fatal("chdir failed: ", err)
	}

	for _, path := range tests {
		path = strings.ReplaceAll(path, "$", root)