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package supported
import (
"errors"
"os"
"testing"
"github.com/containers/common/pkg/apparmor/internal/supported/supportedfakes"
"github.com/stretchr/testify/require"
)
func TestSingleton(t *testing.T) {
// Create the singleton
sut := NewAppArmorVerifier()
mock := &supportedfakes.FakeVerifierImpl{}
sut.impl = mock
mock.OsStatReturns(nil, errors.New(""))
// Retrieve the mocked path
const testBinaryPath = "/some/test/path"
mock.ExecLookPathReturns(testBinaryPath, nil)
res, err := sut.FindAppArmorParserBinary()
require.Nil(t, err)
require.Equal(t, testBinaryPath, res)
// Make the mock fail
mock.ExecLookPathReturns("", errors.New(""))
// Check if we still return the memoized result
res, err = sut.FindAppArmorParserBinary()
require.Nil(t, err)
require.Equal(t, testBinaryPath, res)
// A new singleton instance should return the same memoized result
sutNew := NewAppArmorVerifier()
res, err = sutNew.FindAppArmorParserBinary()
require.Nil(t, err)
require.Equal(t, testBinaryPath, res)
}
func TestApparmorVerifier(t *testing.T) {
for _, tc := range []struct {
description string
prepare func(*supportedfakes.FakeVerifierImpl)
shoulderr bool
}{
{
description: "success with binary in /sbin",
prepare: func(mock *supportedfakes.FakeVerifierImpl) {
mock.UnshareIsRootlessReturns(false)
mock.RuncIsEnabledReturns(true)
file, err := os.CreateTemp(t.TempDir(), "")
require.Nil(t, err)
fileInfo, err := file.Stat()
require.Nil(t, err)
mock.OsStatReturns(fileInfo, nil)
},
shoulderr: false,
},
{
description: "success with binary in $PATH",
prepare: func(mock *supportedfakes.FakeVerifierImpl) {
mock.UnshareIsRootlessReturns(false)
mock.RuncIsEnabledReturns(true)
mock.OsStatReturns(nil, errors.New(""))
mock.ExecLookPathReturns("", nil)
},
shoulderr: false,
},
{
description: "error binary not in /sbin or $PATH",
prepare: func(mock *supportedfakes.FakeVerifierImpl) {
mock.UnshareIsRootlessReturns(false)
mock.RuncIsEnabledReturns(true)
mock.OsStatReturns(nil, errors.New(""))
mock.ExecLookPathReturns("", errors.New(""))
},
shoulderr: true,
},
{
description: "error runc AppAmor not enabled",
prepare: func(mock *supportedfakes.FakeVerifierImpl) {
mock.UnshareIsRootlessReturns(false)
mock.RuncIsEnabledReturns(false)
},
shoulderr: true,
},
{
description: "error rootless",
prepare: func(mock *supportedfakes.FakeVerifierImpl) {
mock.UnshareIsRootlessReturns(true)
},
shoulderr: true,
},
} {
// Given
sut := &ApparmorVerifier{impl: &defaultVerifier{}}
mock := &supportedfakes.FakeVerifierImpl{}
tc.prepare(mock)
sut.impl = mock
// When
err := sut.IsSupported()
// Then
if tc.shoulderr {
require.NotNil(t, err, tc.description)
} else {
require.Nil(t, err, tc.description)
}
}
}
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