1// Copyright 2015 CoreOS, Inc. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14package dlopen 15 16import ( 17 "fmt" 18 "testing" 19) 20 21func checkFailure(shouldSucceed bool, err error) (rErr error) { 22 switch { 23 case err != nil && shouldSucceed: 24 rErr = fmt.Errorf("expected test to succeed, failed unexpectedly: %v", err) 25 case err == nil && !shouldSucceed: 26 rErr = fmt.Errorf("expected test to fail, succeeded unexpectedly") 27 } 28 29 return 30} 31 32func TestDlopen(t *testing.T) { 33 tests := []struct { 34 libs []string 35 shouldSucceed bool 36 }{ 37 { 38 libs: []string{ 39 "libc.so.6", 40 "libc.so", 41 }, 42 shouldSucceed: true, 43 }, 44 { 45 libs: []string{ 46 "libstrange.so", 47 }, 48 shouldSucceed: false, 49 }, 50 } 51 52 for i, tt := range tests { 53 expLen := 4 54 len, err := strlen(tt.libs, "test") 55 if checkFailure(tt.shouldSucceed, err) != nil { 56 t.Errorf("case %d: %v", i, err) 57 } 58 59 if tt.shouldSucceed && len != expLen { 60 t.Errorf("case %d: expected length %d, got %d", i, expLen, len) 61 } 62 } 63} 64