| // Copyright 2018 CoreOS, Inc. |
| // |
| // 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 journal |
| |
| import ( |
| "fmt" |
| "io/ioutil" |
| "strconv" |
| "strings" |
| "testing" |
| ) |
| |
| func TestValidVarName(t *testing.T) { |
| validTestCases := []string{ |
| "TEST", |
| "TE_ST", |
| "TEST_", |
| "0TEST0", |
| } |
| invalidTestCases := []string{ |
| "test", |
| "_TEST", |
| "", |
| } |
| |
| for _, tt := range validTestCases { |
| if err := validVarName(tt); err != nil { |
| t.Fatalf("\"%s\" should be a valid variable", tt) |
| } |
| } |
| for _, tt := range invalidTestCases { |
| if err := validVarName(tt); err == nil { |
| t.Fatalf("\"%s\" should be an invalid variable", tt) |
| } |
| } |
| |
| } |
| |
| func TestJournalSend(t *testing.T) { |
| // an always-too-big value (hopefully) |
| hugeValue := 1234567890 |
| |
| // a value slightly larger than default limit, |
| // see `SO_SNDBUF` in socket(7) |
| largeValue := hugeValue |
| if wmem, err := ioutil.ReadFile("/proc/sys/net/core/wmem_default"); err == nil { |
| wmemStr := strings.TrimSpace(string(wmem)) |
| if v, err := strconv.Atoi(wmemStr); err == nil { |
| largeValue = v + 1 |
| } |
| } |
| // See https://github.com/coreos/go-systemd/pull/221#issuecomment-276727718 |
| _ = largeValue |
| |
| // small messages should go over normal data, |
| // larger ones over temporary file with fd in ancillary data |
| testValues := []struct { |
| label string |
| len int |
| }{ |
| { |
| "empty message", |
| 0, |
| }, |
| { |
| "small message", |
| 5, |
| }, |
| /* See https://github.com/coreos/go-systemd/pull/221#issuecomment-276727718 |
| { |
| "large message", |
| largeValue, |
| }, |
| { |
| "huge message", |
| hugeValue, |
| }, |
| */ |
| } |
| |
| for i, tt := range testValues { |
| t.Logf("journal send test #%v - %s (len=%d)", i, tt.label, tt.len) |
| largeVars := map[string]string{ |
| "KEY": string(make([]byte, tt.len)), |
| } |
| |
| err := Send(fmt.Sprintf("go-systemd test #%v - %s", i, tt.label), PriCrit, largeVars) |
| if err != nil { |
| t.Fatalf("#%v: failed sending %s: %s", i, tt.label, err) |
| } |
| } |
| } |