src/cmd/go/testdata/script/cover_coverprofile_multipkg.txt

# Testcase for #63356. In this bug we're doing a "go test -coverprofile"
# run for a collection of packages, mostly independent (hence tests can
# be done in parallel) and in the original bug, temp coverage profile
# files were not being properly qualified and were colliding, resulting
# in a corrupted final profile. Actual content of the packages doesn't
# especially matter as long as we have a mix of packages with tests and
# multiple packages without tests.

[short] skip

# Kick off test.
go test -p=10 -vet=off -count=1 -coverprofile=cov.p ./...

# Make sure resulting profile is digestible.
go tool cover -func=cov.p

# No extraneous extra files please.
! exists _cover_.out

-- a/a.go --
package a

func init() {
	println("package 'a' init: launch the missiles!")
}

func AFunc() int {
	return 42
}
-- a/a_test.go --
package a

import "testing"

func TestA(t *testing.T) {
	if AFunc() != 42 {
		t.Fatalf("bad!")
	}
}
-- aa/aa.go --
package aa

import "M/it"

func AA(y int) int {
	c := it.Conc{}
	x := it.Callee(&c)
	println(x, y)
	return 0
}
-- aa/aa_test.go --
package aa

import "testing"

func TestMumble(t *testing.T) {
	AA(3)
}
-- b/b.go --
package b

func init() {
	println("package 'b' init: release the kraken")
}

func BFunc() int {
	return -42
}
-- b/b_test.go --
package b

import "testing"

func TestB(t *testing.T) {
	if BFunc() != -42 {
		t.Fatalf("bad!")
	}
}
-- deadstuff/deadstuff.go --
package deadstuff

func downStreamOfPanic(x int) {
	panic("bad")
	if x < 10 {
		println("foo")
	}
}
-- deadstuff/deadstuff_test.go --
package deadstuff

import "testing"

func TestMumble(t *testing.T) {
	defer func() {
		if x := recover(); x != nil {
			println("recovered")
		}
	}()
	downStreamOfPanic(10)
}
-- go.mod --
module M

go 1.21
-- it/it.go --
package it

type Ctr interface {
	Count() int
}

type Conc struct {
	X int
}

func (c *Conc) Count() int {
	return c.X
}

func DoCall(c *Conc) {
	c2 := Callee(c)
	println(c2.Count())
}

func Callee(ii Ctr) Ctr {
	q := ii.Count()
	return &Conc{X: q}
}
-- main/main.go --
package main

import (
	"M/a"
	"M/b"
)

func MFunc() string {
	return "42"
}

func M2Func() int {
	return a.AFunc() + b.BFunc()
}

func init() {
	println("package 'main' init")
}

func main() {
	println(a.AFunc() + b.BFunc())
}
-- main/main_test.go --
package main

import "testing"

func TestMain(t *testing.T) {
	if MFunc() != "42" {
		t.Fatalf("bad!")
	}
	if M2Func() != 0 {
		t.Fatalf("also bad!")
	}
}
-- n/n.go --
package n

type N int
-- onlytest/mumble_test.go --
package onlytest

import "testing"

func TestFoo(t *testing.T) {
	t.Logf("Whee\n")
}
-- x/x.go --
package x

func XFunc() int {
	return 2 * 2
}
-- xinternal/i.go --
package i

func I() int { return 32 }
-- xinternal/q/q.go --
package q

func Q() int {
	return 42
}