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package flags_test
import (
"bytes"
"strings"
"testing"
tmflags "github.com/tendermint/tmlibs/cli/flags"
"github.com/tendermint/tmlibs/log"
)
const (
defaultLogLevelValue = "info"
)
func TestParseLogLevel(t *testing.T) {
var buf bytes.Buffer
jsonLogger := log.NewTMJSONLogger(&buf)
correctLogLevels := []struct {
lvl string
expectedLogLines []string
}{
{"mempool:error", []string{
``, // if no default is given, assume info
``,
`{"_msg":"Mesmero","level":"error","module":"mempool"}`,
`{"_msg":"Mind","level":"info","module":"state"}`, // if no default is given, assume info
``}},
{"mempool:error,*:debug", []string{
`{"_msg":"Kingpin","level":"debug","module":"wire"}`,
``,
`{"_msg":"Mesmero","level":"error","module":"mempool"}`,
`{"_msg":"Mind","level":"info","module":"state"}`,
`{"_msg":"Gideon","level":"debug"}`}},
{"*:debug,wire:none", []string{
``,
`{"_msg":"Kitty Pryde","level":"info","module":"mempool"}`,
`{"_msg":"Mesmero","level":"error","module":"mempool"}`,
`{"_msg":"Mind","level":"info","module":"state"}`,
`{"_msg":"Gideon","level":"debug"}`}},
}
for _, c := range correctLogLevels {
logger, err := tmflags.ParseLogLevel(c.lvl, jsonLogger, defaultLogLevelValue)
if err != nil {
t.Fatal(err)
}
logger = logger
buf.Reset()
logger.With("module", "wire").Debug("Kingpin")
if have := strings.TrimSpace(buf.String()); c.expectedLogLines[0] != have {
t.Errorf("\nwant '%s'\nhave '%s'\nlevel '%s'", c.expectedLogLines[0], have, c.lvl)
}
buf.Reset()
logger.With("module", "mempool").Info("Kitty Pryde")
if have := strings.TrimSpace(buf.String()); c.expectedLogLines[1] != have {
t.Errorf("\nwant '%s'\nhave '%s'\nlevel '%s'", c.expectedLogLines[1], have, c.lvl)
}
buf.Reset()
logger.With("module", "mempool").Error("Mesmero")
if have := strings.TrimSpace(buf.String()); c.expectedLogLines[2] != have {
t.Errorf("\nwant '%s'\nhave '%s'\nlevel '%s'", c.expectedLogLines[2], have, c.lvl)
}
buf.Reset()
logger.With("module", "state").Info("Mind")
if have := strings.TrimSpace(buf.String()); c.expectedLogLines[3] != have {
t.Errorf("\nwant '%s'\nhave '%s'\nlevel '%s'", c.expectedLogLines[3], have, c.lvl)
}
buf.Reset()
logger.Debug("Gideon")
if have := strings.TrimSpace(buf.String()); c.expectedLogLines[4] != have {
t.Errorf("\nwant '%s'\nhave '%s'\nlevel '%s'", c.expectedLogLines[4], have, c.lvl)
}
}
incorrectLogLevel := []string{"some", "mempool:some", "*:some,mempool:error"}
for _, lvl := range incorrectLogLevel {
if _, err := tmflags.ParseLogLevel(lvl, jsonLogger, defaultLogLevelValue); err == nil {
t.Fatalf("Expected %s to produce error", lvl)
}
}
}