ok = false
		}
	}
	return ok
}

func isTestingType(typ types.Type, testingType string) bool {
	// No Unalias here: I doubt "go test" recognizes
	// "type A = *testing.T; func Test(A) {}" as a test.
	ptr, ok := typ.(*types.Pointer)
	if !ok {
		return false
	}
	return analysisutil.IsNamedType(ptr.Elem(), "testing", testingType)
}

	"golang.org/x/telemetry/counter/countertest"
)

var testSum = flag.String("testsum", "", `may be tidy, listm, or listall. If set, TestScript generates a go.sum file at the beginning of each test and updates test files if they pass.`)

// TestScript runs the tests in testdata/script/*.txt.
func TestScript(t *testing.T) {
	testenv.MustHaveGoBuild(t)
	testenv.SkipIfShortAndSlow(t)

	srv, err := vcstest.NewServer()
	if err != nil {

		t.Fatal(err)
	}
}

const testar = `#!/usr/bin/env bash
while [[ $1 == -* ]] >/dev/null; do
  shift
done
echo "testar" > $1
echo "testar" > PWD/testar.ran
`

func TestExtar(t *testing.T) {
	switch GOOS {
	case "windows":
		t.Skip("skipping signal test on Windows")
	}
	if runtime.Compiler == "gccgo" {
		t.Skip("skipping -extar test when using gccgo")
	}
	globalSkip(t)

// sorted sequence of disjoint ranges or intervals. An Intervals
// example: { [0,5) [9-12) [100,101) }, which corresponds to the
// numbers 0-4, 9-11, and 100. Once an Intervals object is created, it
// can be tested to see if it has any overlap with another Intervals
// object, or it can be merged with another Intervals object to form a
// union of the two.
//
// The intended use case for this helper is in describing object or

This directory holds test scripts *.txt run during 'go test cmd/go'.
To run a specific script foo.txt

	go test cmd/go -run=Script/^foo$

In general script files should have short names: a few words, not whole sentences.
The first word should be the general category of behavior being tested,
often the name of a go subcommand (list, build, test, ...) or concept (vendor, pattern).

			}
			t.Fatalf("error reading linentry: %v", err)
		}
		// check LE contains an entry to test.go
		if le.File == nil {
			continue
		}
		file := filepath.Base(le.File.Name)
		if file == "test.go" {
			found = true
			break
		}
	}
	if !found {
		t.Errorf("no LPT entries for test.go")
	}
}

const zeroSizedVarProg = `
package main

import (
	"fmt"

// to have "test" before them, and reading the command line for the test binary.
// Unfortunately for us, we need to do our own flag processing because go test
// grabs some flags but otherwise its command line is just a holding place for
// pkg.test's arguments.
// We allow known flags both before and after the package name list,
// to allow both
//
//	go test fmt -custom-flag-for-fmt-test
//	go test -x math

			nif := ir.NewIfStmt(base.Pos.WithNotStmt(), typecheck.DefaultLit(typecheck.Expr(c.test(expr)), nil), []ir.Node{c.jmp}, nil)
			out.Append(nif)
			out = &nif.Else
		}
		return
	}

	// The strategy here is to find a simple test to divide the set of possible strings
	// that might match expr approximately in half.
	// The test we're going to use is to do an ordered comparison of a single byte

			continue
		}

		if !ok {
			continue
		}

		if mailbox.local != test.localPart || mailbox.domain != test.domain {
			t.Errorf("#%d: %q parsed as (%q, %q), but wanted (%q, %q)", i, test.in, mailbox.local, mailbox.domain, test.localPart, test.domain)
		}
	}
}

func TestBadNamesInConstraints(t *testing.T) {

	if cur == dst {
		return
	}
	seen.Set(cur)
	l, r := po.chl(cur), po.chr(cur)
	if !seen.Test(l) {
		po.findpaths1(l, dst, seen, path)
	}
	if !seen.Test(r) {
		po.findpaths1(r, dst, seen, path)
	}
	if path.Test(l) || path.Test(r) {
		path.Set(cur)
	}
}

// Check whether it is recorded that i1!=i2
func (po *poset) isnoneq(i1, i2 uint32) bool {