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# This test checks that 'go test' prints a reasonable error when fuzzing is
# enabled, and multiple package or multiple fuzz targets match.
# TODO(#46312): support fuzzing multiple targets in multiple packages.
# TODO(jayconrod): support shared memory on more platforms.
[!darwin] [!linux] [!windows] skip
[short] skip
# With fuzzing disabled, multiple targets can be tested.
go test ./...
# With fuzzing enabled, at most one package may be tested,
# even if only one package contains fuzz targets.
! go test -fuzz=. ./...
stderr '^cannot use -fuzz flag with multiple packages$'
! go test -fuzz=. ./zero ./one
stderr '^cannot use -fuzz flag with multiple packages$'
go test -fuzz=. -fuzztime=1x ./one
# With fuzzing enabled, at most one target in the same package may match.
! go test -fuzz=. ./two
stdout '^testing: will not fuzz, -fuzz matches more than one target: \[FuzzOne FuzzTwo\]$'
go test -fuzz=FuzzTwo -fuzztime=1x ./two
-- go.mod --
module fuzz
go 1.18
-- zero/zero.go --
package zero
-- one/one_test.go --
package one
import "testing"
func FuzzOne(f *testing.F) {
f.Fuzz(func(*testing.T, []byte) {})
}
-- two/two_test.go --
package two
import "testing"
func FuzzOne(f *testing.F) {
f.Fuzz(func(*testing.T, []byte) {})
}
func FuzzTwo(f *testing.F) {
f.Fuzz(func(*testing.T, []byte) {})
}
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