| // Copyright 2017 The etcd 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 clientv3 |
| |
| import ( |
| "bytes" |
| "io/ioutil" |
| "strings" |
| "testing" |
| |
| "google.golang.org/grpc/grpclog" |
| ) |
| |
| func TestLogger(t *testing.T) { |
| buf := new(bytes.Buffer) |
| |
| l := NewLogger(grpclog.NewLoggerV2WithVerbosity(buf, buf, buf, 10)) |
| l.Infof("hello world!") |
| if !strings.Contains(buf.String(), "hello world!") { |
| t.Fatalf("expected 'hello world!', got %q", buf.String()) |
| } |
| buf.Reset() |
| |
| l.Lvl(10).Infof("Level 10") |
| l.Lvl(30).Infof("Level 30") |
| if !strings.Contains(buf.String(), "Level 10") { |
| t.Fatalf("expected 'Level 10', got %q", buf.String()) |
| } |
| if strings.Contains(buf.String(), "Level 30") { |
| t.Fatalf("unexpected 'Level 30', got %q", buf.String()) |
| } |
| buf.Reset() |
| |
| l = NewLogger(grpclog.NewLoggerV2(ioutil.Discard, ioutil.Discard, ioutil.Discard)) |
| l.Infof("ignore this") |
| if len(buf.Bytes()) > 0 { |
| t.Fatalf("unexpected logs %q", buf.String()) |
| } |
| } |
