test(datastore): fix OC span test (#10260)

* test(datastore): fix OC span test

* fix vet

Author: rahul2393

datastore/go.mod

@@ -3,7 +3,7 @@ module cloud.google.com/go/datastore
 go 1.20
 
 require (
-	cloud.google.com/go v0.113.0
+	cloud.google.com/go v0.114.0
 	cloud.google.com/go/longrunning v0.5.7
 	github.com/google/go-cmp v0.6.0
 	github.com/googleapis/gax-go/v2 v2.12.4
@@ -39,5 +39,5 @@ require (
 	golang.org/x/sys v0.20.0 // indirect
 	golang.org/x/text v0.15.0 // indirect
 	golang.org/x/time v0.5.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20240509183442-62759503f434 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240513163218-0867130af1f8 // indirect
 )

datastore/go.sum

@@ -1,6 +1,6 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.113.0 h1:g3C70mn3lWfckKBiCVsAshabrDg01pQ0pnX1MNtnMkA=
-cloud.google.com/go v0.113.0/go.mod h1:glEqlogERKYeePz6ZdkcLJ28Q2I6aERgDDErBg9GzO8=
+cloud.google.com/go v0.114.0 h1:OIPFAdfrFDFO2ve2U7r/H5SwSbBzEdrBdE7xkgwc+kY=
+cloud.google.com/go v0.114.0/go.mod h1:ZV9La5YYxctro1HTPug5lXH/GefROyW8PPD4T8n9J8E=
 cloud.google.com/go/auth v0.4.1 h1:Z7YNIhlWRtrnKlZke7z3GMqzvuYzdc2z98F9D1NV5Hg=
 cloud.google.com/go/auth v0.4.1/go.mod h1:QVBuVEKpCn4Zp58hzRGvL0tjRGU0YqdRTdCHM1IHnro=
 cloud.google.com/go/auth/oauth2adapt v0.2.2 h1:+TTV8aXpjeChS9M+aTtN/TjdQnzJvmzKFt//oWu7HX4=
@@ -136,8 +136,8 @@ google.golang.org/genproto v0.0.0-20240401170217-c3f982113cda h1:wu/KJm9KJwpfHWh
 google.golang.org/genproto v0.0.0-20240401170217-c3f982113cda/go.mod h1:g2LLCvCeCSir/JJSWosk19BR4NVxGqHUC6rxIRsd7Aw=
 google.golang.org/genproto/googleapis/api v0.0.0-20240513163218-0867130af1f8 h1:W5Xj/70xIA4x60O/IFyXivR5MGqblAb8R3w26pnD6No=
 google.golang.org/genproto/googleapis/api v0.0.0-20240513163218-0867130af1f8/go.mod h1:vPrPUTsDCYxXWjP7clS81mZ6/803D8K4iM9Ma27VKas=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20240509183442-62759503f434 h1:umK/Ey0QEzurTNlsV3R+MfxHAb78HCEX/IkuR+zH4WQ=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20240509183442-62759503f434/go.mod h1:I7Y+G38R2bu5j1aLzfFmQfTcU/WnFuqDwLZAbvKTKpM=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240513163218-0867130af1f8 h1:mxSlqyb8ZAHsYDCfiXN1EDdNTdvjUJSLY+OnAUtYNYA=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240513163218-0867130af1f8/go.mod h1:I7Y+G38R2bu5j1aLzfFmQfTcU/WnFuqDwLZAbvKTKpM=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=

datastore/oc_test.go

@@ -37,7 +37,7 @@ func TestOCTracing(t *testing.T) {
 		t.Fatalf("client.Put: %v", err)
 	}
 
-	if len(te.Spans) == 0 {
+	if len(te.Spans()) == 0 {
 		t.Fatalf("Expected some span to be created, but got %d", 0)
 	}
 }