| // Copyright Istio Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package util |
| |
| import ( |
| "strings" |
| "testing" |
| ) |
| |
| func TestDualUseCommonName(t *testing.T) { |
| tt := []struct { |
| name string |
| host string |
| expectedCN string |
| expectErr bool |
| }{ |
| { |
| name: "single host", |
| host: "a.com", |
| expectedCN: "a.com", |
| }, |
| { |
| name: "multiple hosts", |
| host: "a.com,b.org,c.groups", |
| expectedCN: "a.com", |
| }, |
| { |
| name: "long host", |
| host: strings.Repeat("a", 61) + ".com", |
| expectErr: true, |
| }, |
| } |
| |
| for _, tc := range tt { |
| cn, err := DualUseCommonName(tc.host) |
| if tc.expectErr { |
| if err == nil { |
| t.Errorf("[%s] passed - expected error", tc.name) |
| } |
| continue |
| } |
| |
| if err != nil { |
| t.Errorf("[%s] unexpected error: %v", tc.name, err) |
| } |
| |
| if tc.expectedCN != cn { |
| t.Errorf("[%s] unexpected CN: wanted %q got %q", tc.name, tc.expectedCN, cn) |
| } |
| } |
| } |