}
	if errmsg, err := cover2.tearDown(*coverProfile, *gocoverdir); err != nil {
		fmt.Fprintf(os.Stderr, "%s: %v\n", errmsg, err)
		os.Exit(2)
	}
}

// coverage2 returns a rough "coverage percentage so far"
// number to support the testing.Coverage() function.
func coverage2() float64 {
	if cover2.mode == "" {
		return 0.0
	}
	return cover2.snapshotcov()

//
// When running a large set of sequential test cases, checking Coverage after each one
// can be useful for identifying which test cases exercise new code paths.
// It is not a replacement for the reports generated by 'go test -cover' and
// 'go tool cover'.
func Coverage() float64 {
	if goexperiment.CoverageRedesign {
		return coverage2()
	}
	var n, d int64
	for _, counters := range cover.Counters {

limitations under the License.
*/

// Package coverage provides tools for coverage-instrumented binaries to collect and
// flush coverage information.
package coverage

import (
	"flag"
	"fmt"
	"os"
	"testing"
	"time"

	"k8s.io/apimachinery/pkg/util/wait"
	"k8s.io/klog/v2"
)

var coverageFile string

// tempCoveragePath returns a temporary file to write coverage information to.

// coverage. A list may be of type []T or func() []T, where T is either Tag,
// Base, Script or Region. The returned Coverage derives the value for Bases
// from Tags if no func or slice for []Base is specified. For other unspecified
// types the returned Coverage will return nil for the respective methods.
func NewCoverage(list ...interface{}) Coverage {
	s := &coverage{}
	for _, x := range list {
		switch v := x.(type) {

	n := 0
	for _, c := range cov {
		n += bits.OnesCount8(c)
	}
	return n
}

var (
	coverageEnabled  = len(coverage()) > 0
	coverageSnapshot = make([]byte, len(coverage()))

	// _counters and _ecounters mark the start and end, respectively, of where
	// the 8-bit coverage counters reside in memory. They're known to cmd/link,
	// which specially assigns their addresses for this purpose.
	_counters, _ecounters [0]byte

// license that can be found in the LICENSE file.

package coverage

import (
	"internal/coverage/cfile"
	"io"
)

// initHook is invoked from main.init in programs built with -cover.
// The call is emitted by the compiler.
func initHook(istest bool) {
	cfile.InitHook(istest)
}

// WriteMetaDir writes a coverage meta-data file for the currently

// in cmd/compile/internal/typecheck
// to update builtin.go. This is not done automatically
// to avoid depending on having a working compiler binary.

//go:build ignore

package coverage

Jonathan Amsterdam <******@****.***> 1700059801 -0500

env GOCACHE=$WORK/cache

# Initial run with simple coverage.
go test -cover ./pkg1 ./pkg2 ./pkg3 ./pkg4
[!GOEXPERIMENT:coverageredesign] stdout 'pkg1	\[no test files\]'
[GOEXPERIMENT:coverageredesign] stdout 'pkg1		coverage: 0.0% of statements'
stdout 'pkg2	\S+	coverage: 0.0% of statements \[no tests to run\]'
stdout 'pkg3	\S+	coverage: 100.0% of statements'
stdout 'pkg4	\S+	coverage: \[no statements\]'

package cformat_test

import (
	"internal/coverage"
	"internal/coverage/cformat"
	"slices"
	"strings"
	"testing"
)

func TestBasics(t *testing.T) {
	fm := cformat.NewFormatter(coverage.CtrModeAtomic)

	mku := func(stl, enl, nx uint32) coverage.CoverableUnit {
		return coverage.CoverableUnit{
			StLine:  stl,
			EnLine:  enl,
			NxStmts: nx,
		}
	}
	fn1units := []coverage.CoverableUnit{
		mku(10, 11, 2),