Bumping k8s dependencies to 1.13

vendor/k8s.io/kubernetes/pkg/util/node/node_test.go

@@ -61,13 +61,13 @@ func TestGetPreferredAddress(t *testing.T) {
 			Preferences:   []v1.NodeAddressType{v1.NodeHostName, v1.NodeExternalIP},
 			ExpectAddress: "status-hostname",
 		},
-		"found label address": {
+		"label address ignored": {
 			Labels: map[string]string{kubeletapis.LabelHostname: "label-hostname"},
 			Addresses: []v1.NodeAddress{
 				{Type: v1.NodeExternalIP, Address: "1.2.3.5"},
 			},
 			Preferences:   []v1.NodeAddressType{v1.NodeHostName, v1.NodeExternalIP},
-			ExpectAddress: "label-hostname",
+			ExpectAddress: "1.2.3.5",
 		},
 	}
 
@@ -89,3 +89,35 @@ func TestGetPreferredAddress(t *testing.T) {
 		}
 	}
 }
+
+func TestGetHostname(t *testing.T) {
+	testCases := []struct {
+		hostName         string
+		expectedHostName string
+		expectError      bool
+	}{
+		{
+			hostName:    "   ",
+			expectError: true,
+		},
+		{
+			hostName:         " abc  ",
+			expectedHostName: "abc",
+			expectError:      false,
+		},
+	}
+
+	for idx, test := range testCases {
+		hostName, err := GetHostname(test.hostName)
+		if err != nil && !test.expectError {
+			t.Errorf("[%d]: unexpected error: %s", idx, err)
+		}
+		if err == nil && test.expectError {
+			t.Errorf("[%d]: expected error, got none", idx)
+		}
+		if test.expectedHostName != hostName {
+			t.Errorf("[%d]: expected output %q, got %q", idx, test.expectedHostName, hostName)
+		}
+
+	}
+}