[short] skip

go test -short -coverpkg=strings strings regexp
! stdout '[^0-9]0\.0%'
stdout  'strings.*coverage:.*[1-9][0-9.]+%'
stdout  'regexp.*coverage:.*[1-9][0-9.]+%'

go test -short -cover strings math regexp
! stdout '[^0-9]0\.0%'
stdout  'strings.*coverage:.*[1-9][0-9.]+%'
stdout  'math.*coverage:.*[1-9][0-9.]+%'

      "coverage" : {
        "per_week" : [ "linux" ]
      }
    }, {
      "testProject" : "mediumNative",
      "coverage" : {
        "per_week" : [ "linux" ]
      }
    }, {
      "testProject" : "multiNative",
      "coverage" : {
        "per_week" : [ "linux" ]
      }
    }, {
      "testProject" : "smallNative",
      "coverage" : {
        "per_week" : [ "linux" ]

// of coverage data (e.g. a coverage percentage for a given package or
// set of packages) and for writing data in the legacy test format
// emitted by "go test -coverprofile=<outfile>".
//
// The model for using these apis is to create a Formatter object,
// then make a series of calls to SetPackage and AddUnit passing in
// data read from coverage meta-data and counter-data files. E.g.
//

exec ./example.exe normal
! stderr '^warning: GOCOVERDIR not set, no coverage data emitted'
go tool covdata percent -i=data/normal
stdout  'coverage:.*[1-9][0-9.]+%'

# Program makes a direct call to os.Exit(0).
env GOCOVERDIR=data/goodexit
exec ./example.exe goodexit
! stderr '^warning: GOCOVERDIR not set, no coverage data emitted'
go tool covdata percent -i=data/goodexit
stdout  'coverage:.*[1-9][0-9.]+%'

	  internal/coverage/encodecounter, internal/coverage/encodemeta;

	internal/coverage/cmerge
	< internal/coverage/cformat;

	internal/coverage, crypto/sha256, FMT
	< cmd/internal/cov/covcmd;

	encoding/json,
	runtime/debug,
	internal/coverage/calloc,
	internal/coverage/cformat,
	internal/coverage/decodecounter, internal/coverage/decodemeta,
	internal/coverage/encodecounter, internal/coverage/encodemeta,

package main

// This file contains functions and apis to support the "merge"
// subcommand of "go tool covdata".

import (
	"flag"
	"fmt"
	"internal/coverage"
	"internal/coverage/cmerge"
	"internal/coverage/decodecounter"
	"internal/coverage/decodemeta"
	"internal/coverage/pods"
	"os"
)

var outdirflag *string
var pcombineflag *bool

func makeMergeOp() covOperation {

// Package cfile implements management of coverage files.
// It provides functionality exported in runtime/coverage as well as
// additional functionality used directly by package testing
// through testing/internal/testdeps.
package cfile

import (
	"crypto/md5"
	"fmt"
	"internal/coverage"
	"internal/coverage/encodecounter"
	"internal/coverage/encodemeta"
	"internal/coverage/rtcov"
	"io"
	"os"
	"path/filepath"

-- hello_test.go --
package hello

import "testing"

func TestTestCoverage(t *testing.T) {
	Hello()
	C1 := testing.Coverage()
	foo(29)
	C2 := testing.Coverage()
	if C1 == 0.0 || C2 == 0.0 {
		t.Errorf("unexpected zero values C1=%f C2=%f", C1, C2)
	}
	if C1 >= C2 {
		t.Errorf("testing.Coverage() not monotonically increasing C1=%f C2=%f", C1, C2)
	}

# coverage. For packages "x" and "f" (which have no tests), check for
# 0% stmts covered (as opposed to "no test files").

go test -count=1 -coverprofile=cov.dat -coverpkg=./... ./...
stdout '^\s*\?\s+M/n\s+\[no test files\]'
stdout '^\s*M/x\s+coverage: 0.0% of statements'
stdout '^\s*M/f\s+coverage: 0.0% of statements'
stdout '^ok\s+M/a\s+\S+\s+coverage: 30.0% of statements in ./...'

package cmerge_test

import (
	"fmt"
	"internal/coverage"
	"internal/coverage/cmerge"
	"testing"
)

func TestClash(t *testing.T) {
	m := &cmerge.Merger{}
	err := m.SetModeAndGranularity("mdf1.data", coverage.CtrModeSet, coverage.CtrGranularityPerBlock)
	if err != nil {
		t.Fatalf("unexpected clash: %v", err)
	}
	err = m.SetModeAndGranularity("mdf1.data", coverage.CtrModeSet, coverage.CtrGranularityPerBlock)
	if err != nil {