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Simplify Logger interface

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This commit is contained in:
Ken Hibino
2020-05-05 22:10:11 -07:00
parent 26b78136ba
commit b63476ddc8
9 changed files with 277 additions and 96 deletions
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196
internal/log/log_test.go
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@@ -13,6 +13,7 @@ import (
// regexp for timestamps
const (
rgxPID = `[0-9]+`
rgxdate = `[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9]`
rgxtime = `[0-9][0-9]:[0-9][0-9]:[0-9][0-9]`
rgxmicroseconds = `\.[0-9][0-9][0-9][0-9][0-9][0-9]`
@@ -27,20 +28,22 @@ type tester struct {
func TestLoggerDebug(t *testing.T) {
tests := []tester{
{
desc: "without trailing newline, logger adds newline",
message: "hello, world!",
wantPattern: fmt.Sprintf("^%s %s%s DEBUG: hello, world!\n$", rgxdate, rgxtime, rgxmicroseconds),
desc: "without trailing newline, logger adds newline",
message: "hello, world!",
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s DEBUG: hello, world!\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
{
desc: "with trailing newline, logger preserves newline",
message: "hello, world!\n",
wantPattern: fmt.Sprintf("^%s %s%s DEBUG: hello, world!\n$", rgxdate, rgxtime, rgxmicroseconds),
desc: "with trailing newline, logger preserves newline",
message: "hello, world!\n",
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s DEBUG: hello, world!\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
}
for _, tc := range tests {
var buf bytes.Buffer
logger := NewLogger(&buf)
logger := NewLogger(newBase(&buf))
logger.Debug(tc.message)
@@ -50,7 +53,7 @@ func TestLoggerDebug(t *testing.T) {
t.Fatal("pattern did not compile:", err)
}
if !matched {
t.Errorf("logger.info(%q) outputted %q, should match pattern %q",
t.Errorf("logger.Debug(%q) outputted %q, should match pattern %q",
tc.message, got, tc.wantPattern)
}
}
@@ -59,20 +62,22 @@ func TestLoggerDebug(t *testing.T) {
func TestLoggerInfo(t *testing.T) {
tests := []tester{
{
desc: "without trailing newline, logger adds newline",
message: "hello, world!",
wantPattern: fmt.Sprintf("^%s %s%s INFO: hello, world!\n$", rgxdate, rgxtime, rgxmicroseconds),
desc: "without trailing newline, logger adds newline",
message: "hello, world!",
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s INFO: hello, world!\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
{
desc: "with trailing newline, logger preserves newline",
message: "hello, world!\n",
wantPattern: fmt.Sprintf("^%s %s%s INFO: hello, world!\n$", rgxdate, rgxtime, rgxmicroseconds),
desc: "with trailing newline, logger preserves newline",
message: "hello, world!\n",
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s INFO: hello, world!\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
}
for _, tc := range tests {
var buf bytes.Buffer
logger := NewLogger(&buf)
logger := NewLogger(newBase(&buf))
logger.Info(tc.message)
@@ -82,7 +87,7 @@ func TestLoggerInfo(t *testing.T) {
t.Fatal("pattern did not compile:", err)
}
if !matched {
t.Errorf("logger.info(%q) outputted %q, should match pattern %q",
t.Errorf("logger.Info(%q) outputted %q, should match pattern %q",
tc.message, got, tc.wantPattern)
}
}
@@ -91,20 +96,22 @@ func TestLoggerInfo(t *testing.T) {
func TestLoggerWarn(t *testing.T) {
tests := []tester{
{
desc: "without trailing newline, logger adds newline",
message: "hello, world!",
wantPattern: fmt.Sprintf("^%s %s%s WARN: hello, world!\n$", rgxdate, rgxtime, rgxmicroseconds),
desc: "without trailing newline, logger adds newline",
message: "hello, world!",
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s WARN: hello, world!\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
{
desc: "with trailing newline, logger preserves newline",
message: "hello, world!\n",
wantPattern: fmt.Sprintf("^%s %s%s WARN: hello, world!\n$", rgxdate, rgxtime, rgxmicroseconds),
desc: "with trailing newline, logger preserves newline",
message: "hello, world!\n",
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s WARN: hello, world!\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
}
for _, tc := range tests {
var buf bytes.Buffer
logger := NewLogger(&buf)
logger := NewLogger(newBase(&buf))
logger.Warn(tc.message)
@@ -114,7 +121,7 @@ func TestLoggerWarn(t *testing.T) {
t.Fatal("pattern did not compile:", err)
}
if !matched {
t.Errorf("logger.info(%q) outputted %q, should match pattern %q",
t.Errorf("logger.Warn(%q) outputted %q, should match pattern %q",
tc.message, got, tc.wantPattern)
}
}
@@ -123,20 +130,22 @@ func TestLoggerWarn(t *testing.T) {
func TestLoggerError(t *testing.T) {
tests := []tester{
{
desc: "without trailing newline, logger adds newline",
message: "hello, world!",
wantPattern: fmt.Sprintf("^%s %s%s ERROR: hello, world!\n$", rgxdate, rgxtime, rgxmicroseconds),
desc: "without trailing newline, logger adds newline",
message: "hello, world!",
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s ERROR: hello, world!\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
{
desc: "with trailing newline, logger preserves newline",
message: "hello, world!\n",
wantPattern: fmt.Sprintf("^%s %s%s ERROR: hello, world!\n$", rgxdate, rgxtime, rgxmicroseconds),
desc: "with trailing newline, logger preserves newline",
message: "hello, world!\n",
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s ERROR: hello, world!\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
}
for _, tc := range tests {
var buf bytes.Buffer
logger := NewLogger(&buf)
logger := NewLogger(newBase(&buf))
logger.Error(tc.message)
@@ -146,8 +155,131 @@ func TestLoggerError(t *testing.T) {
t.Fatal("pattern did not compile:", err)
}
if !matched {
t.Errorf("logger.info(%q) outputted %q, should match pattern %q",
t.Errorf("logger.Error(%q) outputted %q, should match pattern %q",
tc.message, got, tc.wantPattern)
}
}
}
type formatTester struct {
desc string
format string
args []interface{}
wantPattern string // regexp that log output must match
}
func TestLoggerDebugf(t *testing.T) {
tests := []formatTester{
{
desc: "Formats message with DEBUG prefix",
format: "hello, %s!",
args: []interface{}{"Gopher"},
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s DEBUG: hello, Gopher!\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
}
for _, tc := range tests {
var buf bytes.Buffer
logger := NewLogger(newBase(&buf))
logger.Debugf(tc.format, tc.args...)
got := buf.String()
matched, err := regexp.MatchString(tc.wantPattern, got)
if err != nil {
t.Fatal("pattern did not compile:", err)
}
if !matched {
t.Errorf("logger.Debugf(%q, %v) outputted %q, should match pattern %q",
tc.format, tc.args, got, tc.wantPattern)
}
}
}
func TestLoggerInfof(t *testing.T) {
tests := []formatTester{
{
desc: "Formats message with INFO prefix",
format: "%d,%d,%d",
args: []interface{}{1, 2, 3},
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s INFO: 1,2,3\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
}
for _, tc := range tests {
var buf bytes.Buffer
logger := NewLogger(newBase(&buf))
logger.Infof(tc.format, tc.args...)
got := buf.String()
matched, err := regexp.MatchString(tc.wantPattern, got)
if err != nil {
t.Fatal("pattern did not compile:", err)
}
if !matched {
t.Errorf("logger.Infof(%q, %v) outputted %q, should match pattern %q",
tc.format, tc.args, got, tc.wantPattern)
}
}
}
func TestLoggerWarnf(t *testing.T) {
tests := []formatTester{
{
desc: "Formats message with WARN prefix",
format: "hello, %s",
args: []interface{}{"Gophers"},
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s WARN: hello, Gophers\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
}
for _, tc := range tests {
var buf bytes.Buffer
logger := NewLogger(newBase(&buf))
logger.Warnf(tc.format, tc.args...)
got := buf.String()
matched, err := regexp.MatchString(tc.wantPattern, got)
if err != nil {
t.Fatal("pattern did not compile:", err)
}
if !matched {
t.Errorf("logger.Warnf(%q, %v) outputted %q, should match pattern %q",
tc.format, tc.args, got, tc.wantPattern)
}
}
}
func TestLoggerErrorf(t *testing.T) {
tests := []formatTester{
{
desc: "Formats message with ERROR prefix",
format: "hello, %s",
args: []interface{}{"Gophers"},
wantPattern: fmt.Sprintf("^asynq: pid=%s %s %s%s ERROR: hello, Gophers\n$",
rgxPID, rgxdate, rgxtime, rgxmicroseconds),
},
}
for _, tc := range tests {
var buf bytes.Buffer
logger := NewLogger(newBase(&buf))
logger.Errorf(tc.format, tc.args...)
got := buf.String()
matched, err := regexp.MatchString(tc.wantPattern, got)
if err != nil {
t.Fatal("pattern did not compile:", err)
}
if !matched {
t.Errorf("logger.Errorf(%q, %v) outputted %q, should match pattern %q",
tc.format, tc.args, got, tc.wantPattern)
}
}
}