env GO111MODULE=on
go mod init foo
go test
stdout ^ok\s+foo
env GO111MODULE=off
go test
stdout ^ok\s+
! stdout ^ok\s+(cache)$

-- main_test.go --
package main

import "testing"

	// See issue 64474.
	type K [17]float64 // > 128 bytes
	type V [17]float64

	var zero float64
	negZero := -zero

	for tst := 0; tst < 3; tst++ {
		// Initialize m with a key and value.
		m := map[K]V{}
		var k1 K
		var v1 V
		m[k1] = v1

		switch tst {
		case 0: // nothing, just a 1-entry map
		case 1:
			// Add more entries to make it 2 buckets
			// 1 entry already

Shinsuke Sugaya <******@****.***> 1576358545 +0900

Shinsuke Sugaya <******@****.***> 1576358545 +0900

Shinsuke Sugaya <******@****.***> 1576358545 +0900

Shinsuke Sugaya <******@****.***> 1576358545 +0900

Shinsuke Sugaya <******@****.***> 1576358545 +0900

Shinsuke Sugaya <******@****.***> 1576358545 +0900

	f.writeCount = 0
	f.writeLimit = lim
	f.slws = slicewriter.WriteSeeker{}
}

func writeStressTest(tag string, testf func(testf *failingWriter) error) {
	// Invoke the function initially without the write limit
	// set, to capture the number of writes performed.
	fw := &failingWriter{writeLimit: -1}
	testf(fw)

	// Now that we know how many writes are going to happen, run the

[!race] stop

go test -coverpkg=all -race x
stdout ok[\s\S]+?coverage

-- x/x.go --
package x
import _ "runtime"
func F() {}

-- x/x_test.go --
package x
import "testing"