# The test binary skips inputs it has already written to its test log
# since the last change of directory (testing/internal/testdeps).
# Check that inputs read many times, before and after a chdir, still
# invalidate the cache.

[short] skip
[!exec:sleep] skip

env GOCACHE=$WORK/gocache
env TESTKEY=1

# The go command refuses to cache access to files younger than 2s.
exec sleep 2

go test .
! stdout '(cached)'
go test .
stdout '(cached)'

# a.txt read before the chdir.
cp new.txt a.txt
exec sleep 2
go test .
! stdout '(cached)'
go test .
stdout '(cached)'

# The same name read after the chdir is a different file.
cp new.txt sub/a.txt
exec sleep 2
go test .
! stdout '(cached)'
go test .
stdout '(cached)'

# An environment variable read more than once.
env TESTKEY=2
go test .
! stdout '(cached)'

-- go.mod --
module example.com/repeat

go 1.26
-- repeat_test.go --
package repeat

import (
	"os"
	"testing"
)

func read(t *testing.T, name string) {
	for range 3 {
		if _, err := os.ReadFile(name); err != nil {
			t.Fatal(err)
		}
	}
}

func TestRepeat(t *testing.T) {
	read(t, "a.txt")
	os.Getenv("TESTKEY")
	os.Getenv("TESTKEY")
	t.Chdir("sub")
	read(t, "a.txt")
}
-- a.txt --
a
-- sub/a.txt --
sub a
-- new.txt --
new