Fixing several (but not all) go vet errors. Most are around string formatting,…

cluster/addons/dns/kube2sky/kube2sky.go

@@ -377,7 +377,7 @@ func (ks *kube2sky) mutateEtcdOrDie(mutator func() error) {
 	for {
 		select {
 		case <-timeout:
-			glog.Fatalf("Failed to mutate etcd for %v using mutator: %v", ks.etcdMutationTimeout, mutator)
+			glog.Fatalf("Failed to mutate etcd for %v using mutator: %v", ks.etcdMutationTimeout, mutator())
 		default:
 			if err := mutator(); err != nil {
 				delay := 50 * time.Millisecond

cmd/kube-apiserver/app/server_test.go

@@ -211,13 +211,13 @@ func TestParseRuntimeConfig(t *testing.T) {
 		apiGroupVersionOverrides, err := parseRuntimeConfig(s)
 
 		if err == nil && test.err {
-			t.Fatalf("expected error for test: %q", test)
+			t.Fatalf("expected error for test: %v", test)
 		} else if err != nil && !test.err {
-			t.Fatalf("unexpected error: %s, for test: %q", err, test)
+			t.Fatalf("unexpected error: %s, for test: %v", err, test)
 		}
 
 		if err == nil && !reflect.DeepEqual(apiGroupVersionOverrides, test.apiGroupVersionOverrides) {
-			t.Fatalf("unexpected apiGroupVersionOverrides. Actual: %q, expected: %q", apiGroupVersionOverrides, test.apiGroupVersionOverrides)
+			t.Fatalf("unexpected apiGroupVersionOverrides. Actual: %v, expected: %v", apiGroupVersionOverrides, test.apiGroupVersionOverrides)
 		}
 	}
 

cmd/kube-proxy/app/server.go

@@ -337,11 +337,11 @@ func getProxyMode(proxyMode string, client nodeGetter, hostname string, iptver i
 	}
 	node, err := client.Get(hostname)
 	if err != nil {
-		glog.Errorf("Can't get Node %q, assuming iptables proxy: %v", hostname, err)
+		glog.Errorf("Can't get Node %q, assuming iptables proxy, err: %v", hostname, err)
 		return tryIptablesProxy(iptver, kcompat)
 	}
 	if node == nil {
-		glog.Errorf("Got nil Node %q, assuming iptables proxy: %v", hostname)
+		glog.Errorf("Got nil Node %q, assuming iptables proxy", hostname)
 		return tryIptablesProxy(iptver, kcompat)
 	}
 	proxyMode, found := node.Annotations[betaProxyModeAnnotation]

pkg/api/rest/resttest/resttest.go

@@ -574,7 +574,7 @@ func (t *Tester) testDeleteGracefulHasDefault(obj runtime.Object, setFn SetFunc,
 		t.Errorf("unexpected error: %v", err)
 	}
 	if _, err := getFn(ctx, foo); err != nil {
-		t.Fatalf("did not gracefully delete resource", err)
+		t.Fatalf("did not gracefully delete resource: %v", err)
 	}
 
 	object, err := t.storage.(rest.Getter).Get(ctx, objectMeta.Name)
@@ -601,7 +601,7 @@ func (t *Tester) testDeleteGracefulWithValue(obj runtime.Object, setFn SetFunc,
 		t.Errorf("unexpected error: %v", err)
 	}
 	if _, err := getFn(ctx, foo); err != nil {
-		t.Fatalf("did not gracefully delete resource", err)
+		t.Fatalf("did not gracefully delete resource: %v", err)
 	}
 
 	object, err := t.storage.(rest.Getter).Get(ctx, objectMeta.Name)
@@ -628,7 +628,7 @@ func (t *Tester) testDeleteGracefulExtend(obj runtime.Object, setFn SetFunc, get
 		t.Errorf("unexpected error: %v", err)
 	}
 	if _, err := getFn(ctx, foo); err != nil {
-		t.Fatalf("did not gracefully delete resource", err)
+		t.Fatalf("did not gracefully delete resource: %v", err)
 	}
 
 	// second delete duration is ignored
@@ -660,7 +660,7 @@ func (t *Tester) testDeleteGracefulImmediate(obj runtime.Object, setFn SetFunc,
 		t.Errorf("unexpected error: %v", err)
 	}
 	if _, err := getFn(ctx, foo); err != nil {
-		t.Fatalf("did not gracefully delete resource", err)
+		t.Fatalf("did not gracefully delete resource: %v", err)
 	}
 
 	// second delete is immediate, resource is deleted

pkg/apiserver/proxy_test.go

@@ -212,7 +212,7 @@ func TestProxyRequestContentLengthAndTransferEncoding(t *testing.T) {
 		// Dial the proxy server
 		conn, err := net.Dial(server.Listener.Addr().Network(), server.Listener.Addr().String())
 		if err != nil {
-			t.Errorf("%s: unexpected error %v", err)
+			t.Errorf("%s: unexpected error %v", k, err)
 			continue
 		}
 		defer conn.Close()
@@ -228,28 +228,28 @@ func TestProxyRequestContentLengthAndTransferEncoding(t *testing.T) {
 		// Write the request headers
 		post := fmt.Sprintf("POST /%s/%s/%s/proxy/namespaces/default/foo/id/some/dir HTTP/1.1\r\n", prefix, newGroupVersion.Group, newGroupVersion.Version)
 		if _, err := fmt.Fprint(conn, post); err != nil {
-			t.Fatalf("%s: unexpected error %v", err)
+			t.Fatalf("%s: unexpected error %v", k, err)
 		}
 		for header, values := range item.reqHeaders {
 			for _, value := range values {
 				if _, err := fmt.Fprintf(conn, "%s: %s\r\n", header, value); err != nil {
-					t.Fatalf("%s: unexpected error %v", err)
+					t.Fatalf("%s: unexpected error %v", k, err)
 				}
 			}
 		}
 		// Header separator
 		if _, err := fmt.Fprint(conn, "\r\n"); err != nil {
-			t.Fatalf("%s: unexpected error %v", err)
+			t.Fatalf("%s: unexpected error %v", k, err)
 		}
 		// Body
 		if _, err := conn.Write(item.reqBody); err != nil {
-			t.Fatalf("%s: unexpected error %v", err)
+			t.Fatalf("%s: unexpected error %v", k, err)
 		}
 
 		// Read response
 		response, err := ioutil.ReadAll(conn)
 		if err != nil {
-			t.Errorf("%s: unexpected error %v", err)
+			t.Errorf("%s: unexpected error %v", k, err)
 			continue
 		}
 		if !strings.HasSuffix(string(response), successfulResponse) {

pkg/client/testing/core/fixture.go

@@ -97,8 +97,6 @@ func ObjectReaction(o ObjectRetriever, mapper meta.RESTMapper) ReactionFunc {
 		default:
 			return false, nil, fmt.Errorf("no reaction implemented for %s", action)
 		}
-
-		return true, nil, nil
 	}
 }
 

pkg/cloudprovider/providers/aws/aws.go

@@ -1486,7 +1486,7 @@ func (s *AWSCloud) describeLoadBalancer(name string) (*elb.LoadBalancerDescripti
 func (self *AWSCloud) findVPCID() (string, error) {
 	macs, err := self.metadata.GetMetadata("network/interfaces/macs/")
 	if err != nil {
-		return "", fmt.Errorf("Could not list interfaces of the instance", err)
+		return "", fmt.Errorf("Could not list interfaces of the instance: %v", err)
 	}
 
 	// loop over interfaces, first vpc id returned wins

pkg/cloudprovider/providers/aws/aws_routes.go

@@ -149,7 +149,7 @@ func (s *AWSCloud) CreateRoute(clusterName string, nameHint string, route *cloud
 
 		_, err = s.ec2.DeleteRoute(request)
 		if err != nil {
-			return fmt.Errorf("error deleting blackholed AWS route (%s): %v", deleteRoute.DestinationCidrBlock, err)
+			return fmt.Errorf("error deleting blackholed AWS route (%s): %v", aws.StringValue(deleteRoute.DestinationCidrBlock), err)
 		}
 	}
 

pkg/cloudprovider/providers/aws/aws_test.go

@@ -723,7 +723,7 @@ func TestFindVPCID(t *testing.T) {
 	}
 	vpcID, err := c.findVPCID()
 	if err != nil {
-		t.Errorf("Unexpected error:", err)
+		t.Errorf("Unexpected error: %v", err)
 	}
 	if vpcID != "vpc-mac0" {
 		t.Errorf("Unexpected vpcID: %s", vpcID)

pkg/controller/job/controller_test.go

@@ -234,7 +234,7 @@ func TestControllerSyncJob(t *testing.T) {
 		// run
 		err := manager.syncJob(getKey(job, t))
 		if err != nil {
-			t.Errorf("%s: unexpected error when syncing jobs %v", err)
+			t.Errorf("%s: unexpected error when syncing jobs %v", name, err)
 		}
 
 		// validate created/deleted pods
@@ -332,7 +332,7 @@ func TestSyncJobPastDeadline(t *testing.T) {
 		// run
 		err := manager.syncJob(getKey(job, t))
 		if err != nil {
-			t.Errorf("%s: unexpected error when syncing jobs %v", err)
+			t.Errorf("%s: unexpected error when syncing jobs %v", name, err)
 		}
 
 		// validate created/deleted pods

pkg/credentialprovider/aws/aws_credentials.go

@@ -140,7 +140,7 @@ func (p *ecrProvider) Provide() credentialprovider.DockerConfig {
 			data.AuthorizationToken != nil {
 			decodedToken, err := base64.StdEncoding.DecodeString(aws.StringValue(data.AuthorizationToken))
 			if err != nil {
-				glog.Errorf("while decoding token for endpoint %s %v", data.ProxyEndpoint, err)
+				glog.Errorf("while decoding token for endpoint %v %v", data.ProxyEndpoint, err)
 				return cfg
 			}
 			parts := strings.SplitN(string(decodedToken), ":", 2)

pkg/kubectl/cmd/run_test.go

@@ -325,7 +325,7 @@ func TestGenerateService(t *testing.T) {
 			t.Errorf("unexpected error: %v", err)
 		}
 		if test.expectPOST != sawPOST {
-			t.Error("expectPost: %v, sawPost: %v", test.expectPOST, sawPOST)
+			t.Errorf("expectPost: %v, sawPost: %v", test.expectPOST, sawPOST)
 		}
 	}
 }

pkg/kubectl/resource_printer.go

@@ -1584,7 +1584,7 @@ func printConfigMapList(list *api.ConfigMapList, w io.Writer, options PrintOptio
 }
 
 func printPodSecurityPolicy(item *extensions.PodSecurityPolicy, w io.Writer, options PrintOptions) error {
-	_, err := fmt.Fprintf(w, "%s\t%t\t%v\t%t\t%s\t%s\n", item.Name, item.Spec.Privileged,
+	_, err := fmt.Fprintf(w, "%s\t%t\t%v\t%v\t%s\t%s\n", item.Name, item.Spec.Privileged,
 		item.Spec.Capabilities, item.Spec.Volumes, item.Spec.SELinux.Rule,
 		item.Spec.RunAsUser.Rule)
 	return err

pkg/kubelet/cm/container_manager_linux.go

@@ -310,7 +310,7 @@ func (cm *containerManagerImpl) setupNode() error {
 		cm.periodicTasks = append(cm.periodicTasks, func() {
 			cont, err := getContainer(os.Getpid())
 			if err != nil {
-				glog.Error("failed to find cgroups of kubelet - %v", err)
+				glog.Errorf("failed to find cgroups of kubelet - %v", err)
 				return
 			}
 			cm.Lock()

pkg/kubelet/dockertools/manager_test.go

@@ -1146,7 +1146,7 @@ func TestGetRestartCount(t *testing.T) {
 		}
 		cs := status.FindContainerStatusByName(containerName)
 		if cs == nil {
-			t.Fatal("Can't find status for container %q", containerName)
+			t.Fatalf("Can't find status for container %q", containerName)
 		}
 		restartCount := cs.RestartCount
 		if restartCount != expectedCount {
@@ -1161,7 +1161,7 @@ func TestGetRestartCount(t *testing.T) {
 		}
 		cs := status.FindContainerStatusByName(containerName)
 		if cs == nil {
-			t.Fatal("Can't find status for container %q", containerName)
+			t.Fatalf("Can't find status for container %q", containerName)
 		}
 		dm.KillContainerInPod(cs.ID, &pod.Spec.Containers[0], pod, "test container restart count.")
 	}

pkg/kubelet/kubelet_test.go

@@ -4165,7 +4165,7 @@ func TestCleanupBandwidthLimits(t *testing.T) {
 
 		err := testKube.kubelet.cleanupBandwidthLimits(test.pods)
 		if err != nil {
-			t.Errorf("unexpected error: %v (%s)", test.name)
+			t.Errorf("unexpected error: %v (%s)", test.name, err)
 		}
 		if !reflect.DeepEqual(shaper.ResetCIDRs, test.expectResetCIDRs) {
 			t.Errorf("[%s]\nexpected: %v, saw: %v", test.name, test.expectResetCIDRs, shaper.ResetCIDRs)

pkg/kubelet/network/kubenet/kubenet_linux.go

@@ -91,7 +91,7 @@ func findMinMTU() (*net.Interface, error) {
 	}
 
 	if mtu >= 999999 || mtu < 576 || defIntfIndex < 0 {
-		return nil, fmt.Errorf("no suitable interface", BridgeName)
+		return nil, fmt.Errorf("no suitable interface: %v", BridgeName)
 	}
 
 	return &intfs[defIntfIndex], nil

pkg/kubelet/pleg/generic.go

@@ -158,7 +158,6 @@ func generateEvent(podID types.UID, cid string, oldState, newState plegContainer
 	default:
 		panic(fmt.Sprintf("unrecognized container state: %v", newState))
 	}
-	return nil
 }
 
 func (g *GenericPLEG) getRelistTime() time.Time {

pkg/kubelet/prober/results/results_manager_test.go

@@ -56,7 +56,7 @@ func TestUpdates(t *testing.T) {
 		select {
 		case u := <-m.Updates():
 			if expected != u {
-				t.Errorf("Expected update %v, recieved %v: %s %s", expected, u, msg)
+				t.Errorf("Expected update %v, recieved %v: %s", expected, u, msg)
 			}
 		case <-time.After(wait.ForeverTestTimeout):
 			t.Errorf("Timed out waiting for update %v: %s", expected, msg)

pkg/kubelet/rkt/log.go

@@ -143,12 +143,12 @@ func (r *Runtime) GetContainerLogs(pod *api.Pod, containerID kubecontainer.Conta
 
 	outPipe, err := cmd.StdoutPipe()
 	if err != nil {
-		glog.Errorf("rkt: cannot create pipe for journalctl's stdout", err)
+		glog.Errorf("rkt: cannot create pipe for journalctl's stdout: %v", err)
 		return err
 	}
 	errPipe, err := cmd.StderrPipe()
 	if err != nil {
-		glog.Errorf("rkt: cannot create pipe for journalctl's stderr", err)
+		glog.Errorf("rkt: cannot create pipe for journalctl's stderr: %v", err)
 		return err
 	}
 

pkg/kubelet/rkt/rkt_test.go

@@ -713,7 +713,7 @@ func TestGetPodStatus(t *testing.T) {
 func generateCapRetainIsolator(t *testing.T, caps ...string) appctypes.Isolator {
 	retain, err := appctypes.NewLinuxCapabilitiesRetainSet(caps...)
 	if err != nil {
-		t.Fatalf("Error generating cap retain isolator", err)
+		t.Fatalf("Error generating cap retain isolator: %v", err)
 	}
 	return retain.AsIsolator()
 }
@@ -721,7 +721,7 @@ func generateCapRetainIsolator(t *testing.T, caps ...string) appctypes.Isolator
 func generateCapRevokeIsolator(t *testing.T, caps ...string) appctypes.Isolator {
 	revoke, err := appctypes.NewLinuxCapabilitiesRevokeSet(caps...)
 	if err != nil {
-		t.Fatalf("Error generating cap revoke isolator", err)
+		t.Fatalf("Error generating cap revoke isolator: %v", err)
 	}
 	return revoke.AsIsolator()
 }
@@ -729,7 +729,7 @@ func generateCapRevokeIsolator(t *testing.T, caps ...string) appctypes.Isolator
 func generateCPUIsolator(t *testing.T, request, limit string) appctypes.Isolator {
 	cpu, err := appctypes.NewResourceCPUIsolator(request, limit)
 	if err != nil {
-		t.Fatalf("Error generating cpu resource isolator", err)
+		t.Fatalf("Error generating cpu resource isolator: %v", err)
 	}
 	return cpu.AsIsolator()
 }
@@ -737,7 +737,7 @@ func generateCPUIsolator(t *testing.T, request, limit string) appctypes.Isolator
 func generateMemoryIsolator(t *testing.T, request, limit string) appctypes.Isolator {
 	memory, err := appctypes.NewResourceMemoryIsolator(request, limit)
 	if err != nil {
-		t.Fatalf("Error generating memory resource isolator", err)
+		t.Fatalf("Error generating memory resource isolator: %v", err)
 	}
 	return memory.AsIsolator()
 }

pkg/kubelet/server/server.go

@@ -926,11 +926,11 @@ func (h *portForwardStreamHandler) getStreamPair(requestID string) (*portForward
 func (h *portForwardStreamHandler) monitorStreamPair(p *portForwardStreamPair, timeout <-chan time.Time) {
 	select {
 	case <-timeout:
-		err := fmt.Errorf("(conn=%p, request=%s) timed out waiting for streams", h.conn, p.requestID)
+		err := fmt.Errorf("(conn=%v, request=%s) timed out waiting for streams", h.conn, p.requestID)
 		utilruntime.HandleError(err)
 		p.printError(err.Error())
 	case <-p.complete:
-		glog.V(5).Infof("(conn=%p, request=%s) successfully received error and data streams", h.conn, p.requestID)
+		glog.V(5).Infof("(conn=%v, request=%s) successfully received error and data streams", h.conn, p.requestID)
 	}
 	h.removeStreamPair(p.requestID)
 }

pkg/kubelet/status/manager_test.go

@@ -674,7 +674,7 @@ func TestReconcilePodStatus(t *testing.T) {
 
 	podStatus, ok := syncer.GetPodStatus(testPod.UID)
 	if !ok {
-		t.Fatal("Should find pod status for pod: %+v", testPod)
+		t.Fatalf("Should find pod status for pod: %+v", testPod)
 	}
 	testPod.Status = podStatus
 

pkg/master/thirdparty_controller_test.go

@@ -172,7 +172,7 @@ func TestSyncAPIs(t *testing.T) {
 		cntrl := ThirdPartyController{master: &fake}
 
 		if err := cntrl.syncResourceList(test.list); err != nil {
-			t.Errorf("[%s] unexpected error: %v", test.name)
+			t.Errorf("[%s] unexpected error: %v", test.name, err)
 		}
 		if len(test.expectedInstalled) != len(fake.installed) {
 			t.Errorf("[%s] unexpected installed APIs: %d, expected %d (%#v)", test.name, len(fake.installed), len(test.expectedInstalled), fake.installed[0])

pkg/metrics/generic_metrics.go

@@ -141,7 +141,6 @@ func parseMetrics(data string, knownMetrics map[string][]string, output *Metrics
 			}
 		}
 	}
-	return nil
 }
 
 func (g *MetricsGrabber) getMetricsFromPod(podName string, namespace string, port int) (string, error) {

pkg/quota/generic/evaluator.go

@@ -172,7 +172,7 @@ func (g *GenericEvaluator) UsageStats(options quota.UsageStatsOptions) (quota.Us
 	}
 	list, err := g.ListFuncByNamespace(options.Namespace, api.ListOptions{})
 	if err != nil {
-		return result, fmt.Errorf("%s: Failed to list %v: %v", g.Name, g.GroupKind, err)
+		return result, fmt.Errorf("%s: Failed to list %v: %v", g.Name, g.GroupKind(), err)
 	}
 	_, err = meta.Accessor(list)
 	if err != nil {

pkg/quota/resources_test.go

@@ -217,7 +217,7 @@ func TestIsZero(t *testing.T) {
 	}
 	for testName, testCase := range testCases {
 		if result := IsZero(testCase.a); result != testCase.expected {
-			t.Errorf("%s expected: %v, actual: %v", testName, testCase.expected)
+			t.Errorf("%s expected: %v, actual: %v", testName, testCase.expected, result)
 		}
 	}
 }

pkg/registry/generic/rest/proxy_test.go

@@ -638,7 +638,7 @@ func TestProxyRequestContentLengthAndTransferEncoding(t *testing.T) {
 		// Dial the proxy server
 		conn, err := net.Dial(proxyServer.Listener.Addr().Network(), proxyServer.Listener.Addr().String())
 		if err != nil {
-			t.Errorf("%s: unexpected error %v", err)
+			t.Errorf("unexpected error %v", err)
 			continue
 		}
 		defer conn.Close()
@@ -652,28 +652,28 @@ func TestProxyRequestContentLengthAndTransferEncoding(t *testing.T) {
 
 		// Write the request headers
 		if _, err := fmt.Fprint(conn, "POST / HTTP/1.1\r\n"); err != nil {
-			t.Fatalf("%s: unexpected error %v", err)
+			t.Fatalf("%s unexpected error %v", k, err)
 		}
 		for header, values := range item.reqHeaders {
 			for _, value := range values {
 				if _, err := fmt.Fprintf(conn, "%s: %s\r\n", header, value); err != nil {
-					t.Fatalf("%s: unexpected error %v", err)
+					t.Fatalf("%s: unexpected error %v", k, err)
 				}
 			}
 		}
 		// Header separator
 		if _, err := fmt.Fprint(conn, "\r\n"); err != nil {
-			t.Fatalf("%s: unexpected error %v", err)
+			t.Fatalf("%s: unexpected error %v", k, err)
 		}
 		// Body
 		if _, err := conn.Write(item.reqBody); err != nil {
-			t.Fatalf("%s: unexpected error %v", err)
+			t.Fatalf("%s: unexpected error %v", k, err)
 		}
 
 		// Read response
 		response, err := ioutil.ReadAll(conn)
 		if err != nil {
-			t.Errorf("%s: unexpected error %v", err)
+			t.Errorf("%s: unexpected error %v", k, err)
 			continue
 		}
 		if !strings.HasSuffix(string(response), successfulResponse) {

pkg/registry/thirdpartyresourcedata/codec_test.go

@@ -173,7 +173,7 @@ func TestCreater(t *testing.T) {
 			t.Errorf("[%s] unexpected non-error", test.name)
 		}
 		if !reflect.DeepEqual(test.expectedObj, out) {
-			t.Errorf("[%s] unexpected error: expect: %v, got: %v", test.expectedObj, out)
+			t.Errorf("[%s] unexpected error: expect: %v, got: %v", test.name, test.expectedObj, out)
 		}
 
 	}

pkg/runtime/scheme_test.go

@@ -363,7 +363,7 @@ func TestUnversionedTypes(t *testing.T) {
 	codec := serializer.NewCodecFactory(scheme).LegacyCodec(externalGV)
 
 	if unv, ok := scheme.IsUnversioned(&InternalSimple{}); !unv || !ok {
-		t.Fatal("type not unversioned and in scheme: %t %t", unv, ok)
+		t.Fatalf("type not unversioned and in scheme: %t %t", unv, ok)
 	}
 
 	kind, err := scheme.ObjectKind(&InternalSimple{})

pkg/storage/etcd/etcd_watcher_test.go

@@ -317,7 +317,7 @@ func TestWatchEtcdState(t *testing.T) {
 	}
 
 	if e, a := endpoint, event.Object; !api.Semantic.DeepDerivative(e, a) {
-		t.Errorf("%s: expected %v, got %v", e, a)
+		t.Errorf("Unexpected error: expected %v, got %v", e, a)
 	}
 }
 
@@ -367,7 +367,7 @@ func TestWatchFromZeroIndex(t *testing.T) {
 	}
 
 	if e, a := pod, event.Object; !api.Semantic.DeepDerivative(e, a) {
-		t.Errorf("%s: expected %v, got %v", e, a)
+		t.Errorf("Unexpected error: expected %v, got %v", e, a)
 	}
 }
 
@@ -397,7 +397,7 @@ func TestWatchListFromZeroIndex(t *testing.T) {
 	}
 
 	if e, a := pod, event.Object; !api.Semantic.DeepDerivative(e, a) {
-		t.Errorf("%s: expected %v, got %v", e, a)
+		t.Errorf("Unexpected error: expected %v, got %v", e, a)
 	}
 }
 

pkg/util/httpstream/httpstream_test.go

@@ -109,7 +109,7 @@ func TestHandshake(t *testing.T) {
 			continue
 		}
 		if w.statusCode != nil {
-			t.Errorf("%s: unexpected non-nil w.statusCode: %d", w.statusCode)
+			t.Errorf("%s: unexpected non-nil w.statusCode: %d", name, w.statusCode)
 		}
 
 		// verify response headers

pkg/util/oom/oom_linux.go

@@ -82,7 +82,7 @@ func applyOOMScoreAdj(pid int, oomScoreAdj int) error {
 			if syscallNotExists(err) {
 				return os.ErrNotExist
 			}
-			err = fmt.Errorf("failed to apply oom-score-adj to pid %d (%v)", err)
+			err = fmt.Errorf("failed to apply oom-score-adj to pid %d (%v)", pid, err)
 		}
 	}
 	return err

pkg/util/strategicpatch/patch_test.go

@@ -239,7 +239,7 @@ func TestSortMergeLists(t *testing.T) {
 		original := testObjectToJSONOrFail(t, c.Original, c.Description)
 		sorted := testObjectToJSONOrFail(t, c.Sorted, c.Description)
 		if !reflect.DeepEqual(original, sorted) {
-			t.Errorf("error in test case: %s\ncannot sort object:\n%s\n%sexpected:\n%s\ngot:\n%s\n",
+			t.Errorf("error in test case: %s\ncannot sort object:\n%s\nexpected:\n%s\ngot:\n%s\n",
 				c.Description, toYAMLOrError(c.Original), toYAMLOrError(c.Sorted), jsonToYAMLOrError(original))
 		}
 	}
@@ -1814,7 +1814,7 @@ func testTwoWayPatch(t *testing.T, c StrategicMergePatchTestCase) {
 	actual, err := CreateTwoWayMergePatch(original, modified, mergeItem)
 	if err != nil {
 		t.Errorf("error: %s\nin test case: %s\ncannot create two way patch: %s:\n%s\n",
-			err, c.Description, toYAMLOrError(c.StrategicMergePatchTestCaseData))
+			err, c.Description, original, toYAMLOrError(c.StrategicMergePatchTestCaseData))
 		return
 	}
 

pkg/util/wsstream/stream_test.go

@@ -224,7 +224,7 @@ func expectWebSocketFrames(r *Reader, t *testing.T, fn func(*websocket.Conn), fr
 			return err
 		}
 		if !reflect.DeepEqual(frames[i], data) {
-			return fmt.Errorf("frame %d did not match expected: %v", data)
+			return fmt.Errorf("frame %d did not match expected: %v", data, err)
 		}
 	}
 	var data []byte

plugin/pkg/admission/alwayspullimages/admission_test.go

@@ -46,7 +46,7 @@ func TestAdmission(t *testing.T) {
 	}
 	for _, c := range pod.Spec.Containers {
 		if c.ImagePullPolicy != api.PullAlways {
-			t.Errorf("Container %s: expected pull always, got %v", c.ImagePullPolicy)
+			t.Errorf("Container %v: expected pull always, got %v", c, c.ImagePullPolicy)
 		}
 	}
 }

plugin/pkg/admission/namespace/lifecycle/admission_test.go

@@ -121,16 +121,16 @@ func TestAdmission(t *testing.T) {
 	// verify create/update/delete of object in non-existent namespace throws error
 	err = handler.Admit(admission.NewAttributesRecord(&badPod, api.Kind("Pod"), badPod.Namespace, badPod.Name, api.Resource("pods"), "", admission.Create, nil))
 	if err == nil {
-		t.Errorf("Expected an aerror that objects cannot be created in non-existant namespaces", err)
+		t.Errorf("Expected, but didn't get, an error (%v) that objects cannot be created in non-existant namespaces", err)
 	}
 
 	err = handler.Admit(admission.NewAttributesRecord(&badPod, api.Kind("Pod"), badPod.Namespace, badPod.Name, api.Resource("pods"), "", admission.Update, nil))
 	if err == nil {
-		t.Errorf("Expected an aerror that objects cannot be updated in non-existant namespaces", err)
+		t.Errorf("Expected, but didn't get, an error (%v) that objects cannot be updated in non-existant namespaces", err)
 	}
 
 	err = handler.Admit(admission.NewAttributesRecord(&badPod, api.Kind("Pod"), badPod.Namespace, badPod.Name, api.Resource("pods"), "", admission.Delete, nil))
 	if err == nil {
-		t.Errorf("Expected an aerror that objects cannot be deleted in non-existant namespaces", err)
+		t.Errorf("Expected, but didn't get, an error (%v) that objects cannot be deleted in non-existant namespaces", err)
 	}
 }

test/e2e/reboot.go

@@ -165,7 +165,7 @@ func printStatusAndLogsForNotReadyPods(c *client.Client, ns string, podNames []s
 			prefix = "Retrieving log for the last terminated container"
 		}
 		if err != nil {
-			Logf("%s %s, err: %v:\n%s\n", prefix, id, log)
+			Logf("%s %s, err: %v:\n%s\n", prefix, id, err, log)
 		} else {
 			Logf("%s %s:\n%s\n", prefix, id, log)
 		}

test/e2e/util.go

@@ -1011,7 +1011,7 @@ func waitForPodTerminatedInNamespace(c *client.Client, podName, reason, namespac
 			if pod.Status.Reason == reason {
 				return true, nil
 			} else {
-				return true, fmt.Errorf("Expected pod %n/%n to be terminated with reason %v, got reason: ", namespace, podName, reason, pod.Status.Reason)
+				return true, fmt.Errorf("Expected pod %v in namespace %v to be terminated with reason %v, got reason: %v", podName, namespace, reason, pod.Status.Reason)
 			}
 		}
 

test/e2e_node/e2e_node_suite_test.go

@@ -57,7 +57,7 @@ var _ = BeforeSuite(func() {
 	if *nodeName == "" {
 		output, err := exec.Command("hostname").CombinedOutput()
 		if err != nil {
-			glog.Fatal("Could not get node name from hostname %v.  Output:\n%s", err, output)
+			glog.Fatalf("Could not get node name from hostname %v.  Output:\n%s", err, output)
 		}
 		*nodeName = strings.TrimSpace(fmt.Sprintf("%s", output))
 	}

test/e2e_node/e2e_service.go

@@ -155,7 +155,7 @@ func (es *e2eService) startServer(cmd *healthCheckCommand) error {
 	go func() {
 		err := cmd.Run()
 		if err != nil {
-			cmdErrorChan <- fmt.Errorf("%s Exited with status %v.  Output:\n%s", cmd, err, *cmd.OutputBuffer)
+			cmdErrorChan <- fmt.Errorf("%s Exited with status %v.  Output:\n%v", cmd, err, *cmd.OutputBuffer)
 		}
 		close(cmdErrorChan)
 	}()

test/images/netexec/netexec.go

@@ -374,11 +374,11 @@ func startUDPServer(udpPort int) {
 			if len(parts) == 2 {
 				resp = parts[1]
 			}
-			log.Println("Echoing %q")
+			log.Printf("Echoing %v\n", resp)
 			_, err = serverConn.WriteToUDP([]byte(resp), clientAddress)
 			assertNoError(err)
 		} else if len(receivedText) > 0 {
-			log.Println("Unknown udp command received. ", receivedText)
+			log.Printf("Unknown udp command received: %v\n", receivedText)
 		}
 	}
 }