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Merge pull request #1589 from marquiz/devel/pci-unit-test
source/pci: add unit test for the pci source
2 parents b33b01a + 3941448 commit 41e903d

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‎source/pci/pci_test.go

Lines changed: 227 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -17,12 +17,24 @@ limitations under the License.
1717
package pci
1818

1919
import (
20+
"path/filepath"
21+
"runtime"
2022
"testing"
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2224
"github.com/stretchr/testify/assert"
25+
nfdv1alpha1 "sigs.k8s.io/node-feature-discovery/pkg/apis/nfd/v1alpha1"
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"sigs.k8s.io/node-feature-discovery/pkg/utils/hostpath"
27+
"sigs.k8s.io/node-feature-discovery/source"
2328
)
2429

25-
func TestPciSource(t *testing.T) {
30+
var packagePath string
31+
32+
func init() {
33+
_, thisFile, _, _ := runtime.Caller(0)
34+
packagePath = filepath.Dir(thisFile)
35+
}
36+
37+
func TestSingletonPciSource(t *testing.T) {
2638
assert.Equal(t, src.Name(), Name)
2739

2840
// Check that GetLabels works with empty features
@@ -31,5 +43,219 @@ func TestPciSource(t *testing.T) {
3143

3244
assert.Nil(t, err, err)
3345
assert.Empty(t, l)
46+
}
47+
48+
func TestPciSource(t *testing.T) {
49+
// Specify expected "raw" features. These are always the same for the same
50+
// mocked sysfs.
51+
expectedFeatures := map[string]*nfdv1alpha1.Features{
52+
"rootfs-empty": &nfdv1alpha1.Features{
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Flags: map[string]nfdv1alpha1.FlagFeatureSet{},
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Attributes: map[string]nfdv1alpha1.AttributeFeatureSet{},
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Instances: map[string]nfdv1alpha1.InstanceFeatureSet{},
56+
},
57+
"rootfs-1": &nfdv1alpha1.Features{
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Flags: map[string]nfdv1alpha1.FlagFeatureSet{},
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Attributes: map[string]nfdv1alpha1.AttributeFeatureSet{},
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Instances: map[string]nfdv1alpha1.InstanceFeatureSet{
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"device": nfdv1alpha1.InstanceFeatureSet{
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Elements: []nfdv1alpha1.InstanceFeature{
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{
64+
Attributes: map[string]string{
65+
"class": "0880",
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"device": "2021",
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"subsystem_device": "35cf",
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"subsystem_vendor": "8086",
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"vendor": "8086",
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},
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},
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{
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Attributes: map[string]string{
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"class": "ff00",
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"device": "a1ed",
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"subsystem_device": "35cf",
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"subsystem_vendor": "8086",
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"vendor": "8086",
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},
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},
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{
82+
Attributes: map[string]string{
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"class": "0106",
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"device": "a1d2",
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"subsystem_device": "35cf",
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"subsystem_vendor": "8086",
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"vendor": "8086",
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},
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},
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{
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Attributes: map[string]string{
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"class": "1180",
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"device": "a1b1",
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"subsystem_device": "35cf",
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"subsystem_vendor": "8086",
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"vendor": "8086",
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},
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},
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{
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Attributes: map[string]string{
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"class": "0780",
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"device": "a1ba",
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"subsystem_device": "35cf",
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"subsystem_vendor": "8086",
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"vendor": "8086",
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},
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},
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{
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Attributes: map[string]string{
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"class": "0604",
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"device": "a193",
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"subsystem_device": "35cf",
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"subsystem_vendor": "8086",
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"vendor": "8086",
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},
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},
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{
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Attributes: map[string]string{
119+
"class": "0c80",
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"device": "a1a4",
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"subsystem_device": "35cf",
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"subsystem_vendor": "8086",
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"vendor": "8086",
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},
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},
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{
127+
Attributes: map[string]string{
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"class": "0300",
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"device": "2000",
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"subsystem_device": "2000",
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"subsystem_vendor": "1a03",
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"vendor": "1a03",
133+
},
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},
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{
136+
Attributes: map[string]string{
137+
"class": "0b40",
138+
"device": "37c8",
139+
"iommu/intel-iommu/version": "1:0",
140+
"iommu_group/type": "identity",
141+
"sriov_totalvfs": "16",
142+
"subsystem_device": "35cf",
143+
"subsystem_vendor": "8086",
144+
"vendor": "8086",
145+
},
146+
},
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{
148+
Attributes: map[string]string{
149+
"class": "0200",
150+
"device": "37d2",
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"sriov_totalvfs": "32",
152+
"subsystem_device": "35cf",
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"subsystem_vendor": "8086",
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"vendor": "8086",
155+
},
156+
},
157+
},
158+
},
159+
},
160+
},
161+
}
162+
163+
// Specify test cases
164+
tests := []struct {
165+
name string
166+
config *Config
167+
rootfs string
168+
expectErr bool
169+
expectedLabels source.FeatureLabels
170+
}{
171+
{
172+
name: "detect with default config",
173+
rootfs: "rootfs-1",
174+
expectedLabels: source.FeatureLabels{
175+
"0300_1a03.present": true,
176+
"0b40_8086.present": true,
177+
"0b40_8086.sriov.capable": true,
178+
},
179+
},
180+
{
181+
name: "test config with empty DeviceLabelFields",
182+
rootfs: "rootfs-1",
183+
config: &Config{
184+
DeviceClassWhitelist: []string{"0c"},
185+
DeviceLabelFields: []string{},
186+
},
187+
expectedLabels: source.FeatureLabels{
188+
"0c80_8086.present": true,
189+
},
190+
},
191+
{
192+
name: "test config with empty DeviceLabelFields",
193+
rootfs: "rootfs-1",
194+
config: &Config{
195+
DeviceClassWhitelist: []string{"0c"},
196+
DeviceLabelFields: []string{},
197+
},
198+
expectedLabels: source.FeatureLabels{
199+
"0c80_8086.present": true,
200+
},
201+
},
202+
{
203+
name: "test config with only invalid DeviceLabelFields",
204+
rootfs: "rootfs-1",
205+
config: &Config{
206+
DeviceClassWhitelist: []string{"0c"},
207+
DeviceLabelFields: []string{"foo", "bar"},
208+
},
209+
expectedLabels: source.FeatureLabels{
210+
"0c80_8086.present": true,
211+
},
212+
},
213+
{
214+
name: "test config with some invalid DeviceLabelFields",
215+
rootfs: "rootfs-1",
216+
config: &Config{
217+
DeviceClassWhitelist: []string{"0c"},
218+
DeviceLabelFields: []string{"foo", "class"},
219+
},
220+
expectedLabels: source.FeatureLabels{
221+
"0c80.present": true,
222+
},
223+
},
224+
{
225+
name: "test empty sysfs",
226+
rootfs: "rootfs-empty",
227+
expectErr: true,
228+
expectedLabels: source.FeatureLabels{},
229+
},
230+
}
231+
232+
// Run test cases
233+
for _, tc := range tests {
234+
t.Run(tc.name, func(t *testing.T) {
235+
hostpath.SysfsDir = hostpath.HostDir(filepath.Join(packagePath, "testdata", tc.rootfs, "sys"))
236+
237+
config := tc.config
238+
if config == nil {
239+
config = newDefaultConfig()
240+
}
241+
testSrc := pciSource{config: config}
242+
243+
// Discover mock PCI devices
244+
err := testSrc.Discover()
245+
if tc.expectErr {
246+
assert.NotNil(t, err, err)
247+
} else {
248+
assert.Nil(t, err, err)
249+
}
250+
251+
// Check features
252+
f := testSrc.GetFeatures()
253+
assert.Equal(t, expectedFeatures[tc.rootfs], f)
34254

255+
// Check labels
256+
l, err := testSrc.GetLabels()
257+
assert.Nil(t, err, err)
258+
assert.Equal(t, tc.expectedLabels, l)
259+
})
260+
}
35261
}

‎source/pci/testdata/rootfs-1/sys/bus/pci/devices/0000:00:04.0/ari_enabled

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@@ -0,0 +1 @@
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0

‎source/pci/testdata/rootfs-1/sys/bus/pci/devices/0000:00:04.0/broken_parity_status

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0

‎source/pci/testdata/rootfs-1/sys/bus/pci/devices/0000:00:04.0/class

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1+
0x088000

‎source/pci/testdata/rootfs-1/sys/bus/pci/devices/0000:00:04.0/config

64 Bytes
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‎source/pci/testdata/rootfs-1/sys/bus/pci/devices/0000:00:04.0/consistent_dma_mask_bits

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‎source/pci/testdata/rootfs-1/sys/bus/pci/devices/0000:00:04.0/current_link_speed

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Unknown

‎source/pci/testdata/rootfs-1/sys/bus/pci/devices/0000:00:04.0/current_link_width

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@@ -0,0 +1 @@
1+
0

‎source/pci/testdata/rootfs-1/sys/bus/pci/devices/0000:00:04.0/d3cold_allowed

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@@ -0,0 +1 @@
1+
1

‎source/pci/testdata/rootfs-1/sys/bus/pci/devices/0000:00:04.0/device

Lines changed: 1 addition & 0 deletions
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@@ -0,0 +1 @@
1+
0x2021

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