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abi_test.go
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abi_test.go
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package ebpf
import (
"testing"
"github.com/ismhong/ebpf/internal/testutils"
)
func TestMapABIEqual(t *testing.T) {
abi := &MapABI{
Type: Array,
KeySize: 4,
ValueSize: 2,
MaxEntries: 3,
Flags: 1,
}
if !abi.Equal(abi) {
t.Error("Equal returns true when comparing an ABI to itself")
}
if abi.Equal(&MapABI{}) {
t.Error("Equal returns true for different ABIs")
}
}
func TestMapABIFromProc(t *testing.T) {
hash, err := NewMap(&MapSpec{
Type: Hash,
KeySize: 4,
ValueSize: 5,
MaxEntries: 2,
Flags: 0x1, // BPF_F_NO_PREALLOC
})
if err != nil {
t.Fatal(err)
}
defer hash.Close()
abi, err := newMapABIFromProc(hash.fd)
if err != nil {
t.Fatal("Can't get map ABI:", err)
}
if abi.Type != Hash {
t.Error("Expected Hash, got", abi.Type)
}
if abi.KeySize != 4 {
t.Error("Expected KeySize of 4, got", abi.KeySize)
}
if abi.ValueSize != 5 {
t.Error("Expected ValueSize of 5, got", abi.ValueSize)
}
if abi.MaxEntries != 2 {
t.Error("Expected MaxEntries of 2, got", abi.MaxEntries)
}
if abi.Flags != 1 {
t.Error("Expected Flags to be 1, got", abi.Flags)
}
nested, err := NewMap(&MapSpec{
Type: ArrayOfMaps,
KeySize: 4,
MaxEntries: 2,
InnerMap: &MapSpec{
Type: Array,
KeySize: 4,
ValueSize: 4,
MaxEntries: 2,
},
})
testutils.SkipIfNotSupported(t, err)
if err != nil {
t.Fatal(err)
}
defer nested.Close()
_, err = newMapABIFromProc(nested.fd)
if err != nil {
t.Fatal("Can't get nested map ABI from /proc:", err)
}
}
func TestProgramABI(t *testing.T) {
abi := &ProgramABI{Type: SocketFilter}
if !abi.Equal(abi) {
t.Error("Equal returns true when comparing an ABI to itself")
}
if abi.Equal(&ProgramABI{}) {
t.Error("Equal returns true for different ABIs")
}
}