1 // Copyright (c) 2023 Uber Technologies, Inc. 2 // 3 // Permission is hereby granted, free of charge, to any person obtaining a copy 4 // of this software and associated documentation files (the "Software"), to deal 5 // in the Software without restriction, including without limitation the rights 6 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7 // copies of the Software, and to permit persons to whom the Software is 8 // furnished to do so, subject to the following conditions: 9 // 10 // The above copyright notice and this permission notice shall be included in 11 // all copies or substantial portions of the Software. 12 // 13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19 // THE SOFTWARE. 20 21 package zapcore_test 22 23 import ( 24 "bytes" 25 "testing" 26 "time" 27 28 "github.com/stretchr/testify/assert" 29 "go.uber.org/zap" 30 "go.uber.org/zap/zapcore" 31 "go.uber.org/zap/zaptest" 32 ) 33 34 func TestCheckedEntryIllegalReuse(t *testing.T) { 35 t.Parallel() 36 37 var errOut bytes.Buffer 38 39 testCore := zaptest.NewLogger(t).Core() 40 ce := testCore.Check(zapcore.Entry{ 41 Level: zapcore.InfoLevel, 42 Time: time.Now(), 43 Message: "hello", 44 }, nil) 45 ce.ErrorOutput = zapcore.AddSync(&errOut) 46 47 // The first write should succeed. 48 ce.Write(zap.String("k", "v"), zap.Int("n", 42)) 49 assert.Empty(t, errOut.String(), "Expected no errors on first write.") 50 51 // The second write should fail. 52 ce.Write(zap.String("foo", "bar"), zap.Int("x", 1)) 53 assert.Contains(t, errOut.String(), "Unsafe CheckedEntry re-use near Entry", 54 "Expected error logged on second write.") 55 } 56