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log_test.go
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log_test.go
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package slate
import (
"errors"
"fmt"
"io"
"os"
"reflect"
"regexp"
"sort"
"testing"
"time"
"github.com/golang/mock/gomock"
)
func Test_log_err(t *testing.T) {
t.Run("errInvalidLogFormat", func(t *testing.T) {
arg := "dummy argument"
context := map[string]interface{}{"field": "value"}
message := "dummy argument : invalid log format"
t.Run("creation without context", func(t *testing.T) {
if e := errInvalidLogFormat(arg); !errors.Is(e, ErrInvalidLogFormat) {
t.Errorf("error not a instance of ErrInvalidFormat")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
t.Run("creation with context", func(t *testing.T) {
if e := errInvalidLogFormat(arg, context); !errors.Is(e, ErrInvalidLogFormat) {
t.Errorf("error not a instance of ErrInvalidFormat")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
})
t.Run("errInvalidLogLevel", func(t *testing.T) {
arg := "dummy argument"
context := map[string]interface{}{"field": "value"}
message := "dummy argument : invalid log level"
t.Run("creation without context", func(t *testing.T) {
if e := errInvalidLogLevel(arg); !errors.Is(e, ErrInvalidLogLevel) {
t.Errorf("error not a instance of ErrInvalidLevel")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
t.Run("creation with context", func(t *testing.T) {
if e := errInvalidLogLevel(arg, context); !errors.Is(e, ErrInvalidLogLevel) {
t.Errorf("error not a instance of ErrInvalidLevel")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
})
t.Run("errInvalidLogConfig", func(t *testing.T) {
arg := ConfigPartial{"field": "value"}
context := map[string]interface{}{"field": "value"}
message := "map[field:value] : invalid log writer config"
t.Run("creation without context", func(t *testing.T) {
if e := errInvalidLogConfig(arg); !errors.Is(e, ErrInvalidLogConfig) {
t.Errorf("error not a instance of ErrInvalidStream")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
t.Run("creation with context", func(t *testing.T) {
if e := errInvalidLogConfig(arg, context); !errors.Is(e, ErrInvalidLogConfig) {
t.Errorf("error not a instance of ErrInvalidStream")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
})
t.Run("errLogWriterNotFound", func(t *testing.T) {
arg := "dummy argument"
context := map[string]interface{}{"field": "value"}
message := "dummy argument : log writer not found"
t.Run("creation without context", func(t *testing.T) {
if e := errLogWriterNotFound(arg); !errors.Is(e, ErrLogWriterNotFound) {
t.Errorf("error not a instance of ErrStreamNotFound")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
t.Run("creation with context", func(t *testing.T) {
if e := errLogWriterNotFound(arg, context); !errors.Is(e, ErrLogWriterNotFound) {
t.Errorf("error not a instance of ErrStreamNotFound")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
})
t.Run("errDuplicateLogWriter", func(t *testing.T) {
arg := "dummy argument"
context := map[string]interface{}{"field": "value"}
message := "dummy argument : log writer already registered"
t.Run("creation without context", func(t *testing.T) {
if e := errDuplicateLogWriter(arg); !errors.Is(e, ErrDuplicateLogWriter) {
t.Errorf("error not a instance of ErrDuplicateStream")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
t.Run("creation with context", func(t *testing.T) {
if e := errDuplicateLogWriter(arg, context); !errors.Is(e, ErrDuplicateLogWriter) {
t.Errorf("error not a instance of ErrDuplicateStream")
} else if e.Error() != message {
t.Errorf("error message (%v) not same as expected (%v)", e, message)
} else {
var te *Error
if !errors.As(e, &te) {
t.Errorf("didn't returned a slate error instance")
}
}
})
})
}
func Test_LogFormatterFactory(t *testing.T) {
t.Run("NewLogFormatterFactory", func(t *testing.T) {
t.Run("creation with empty creators list", func(t *testing.T) {
sut := NewLogFormatterFactory(nil)
if sut == nil {
t.Error("didn't returned the expected reference")
}
})
t.Run("creation with creators list", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
creator := NewMockLogFormatterCreator(ctrl)
sut := NewLogFormatterFactory([]LogFormatterCreator{creator})
if sut == nil {
t.Error("didn't returned the expected reference")
} else if (*sut)[0] != creator {
t.Error("didn't stored the passed creator")
}
})
})
t.Run("Create", func(t *testing.T) {
t.Run("unrecognized format", func(t *testing.T) {
format := "invalid format"
ctrl := gomock.NewController(t)
defer ctrl.Finish()
creator := NewMockLogFormatterCreator(ctrl)
creator.EXPECT().Accept(format).Return(false).Times(1)
sut := NewLogFormatterFactory([]LogFormatterCreator{creator})
res, e := sut.Create(format)
switch {
case res != nil:
t.Error("returned a valid reference")
case e == nil:
t.Error("didn't returned the expected error")
case !errors.Is(e, ErrInvalidLogFormat):
t.Errorf("(%v) when expecting (%v)", e, ErrInvalidLogFormat)
}
})
t.Run("create the formatter", func(t *testing.T) {
format := "format"
ctrl := gomock.NewController(t)
defer ctrl.Finish()
formatter := NewMockLogFormatter(ctrl)
creator := NewMockLogFormatterCreator(ctrl)
creator.EXPECT().Accept(format).Return(true).Times(1)
creator.EXPECT().Create().Return(formatter, nil).Times(1)
sut := NewLogFormatterFactory([]LogFormatterCreator{creator})
if res, e := sut.Create(format); e != nil {
t.Errorf("unexpected (%v) error", e)
} else if !reflect.DeepEqual(res, formatter) {
t.Errorf("didn't returned the formatter")
}
})
})
}
func Test_LogJSONEncoder(t *testing.T) {
t.Run("NewLogJSONEncoder", func(t *testing.T) {
t.Run("creation", func(t *testing.T) {
if NewLogJSONEncoder() == nil {
t.Error("didn't returned the expected reference")
}
})
})
t.Run("Format", func(t *testing.T) {
t.Run("correctly format the message", func(t *testing.T) {
scenarios := []struct {
level LogLevel
ctx LogContext
message string
expected string
}{
{ // _test level FATAL
level: FATAL,
ctx: nil,
message: "",
expected: `"level"\s*\:\s*"FATAL"`,
},
{ // _test level ERROR
level: ERROR,
ctx: nil,
message: "",
expected: `"level"\s*\:\s*"ERROR"`,
},
{ // _test level WARNING
level: WARNING,
ctx: nil,
message: "",
expected: `"level"\s*\:\s*"WARNING"`,
},
{ // _test level NOTICE
level: NOTICE,
ctx: nil,
message: "",
expected: `"level"\s*\:\s*"NOTICE"`,
},
{ // _test level INFO
level: INFO,
ctx: nil,
message: "",
expected: `"level"\s*\:\s*"INFO"`,
},
{ // _test level DEBUG
level: DEBUG,
ctx: nil,
message: "",
expected: `"level"\s*\:\s*"DEBUG"`,
},
{ // _test ctx (single value)
level: DEBUG,
ctx: LogContext{"field1": "value1"},
message: "",
expected: `"field1"\s*\:\s*"value1"`,
},
{ // _test ctx (multiple value)
level: DEBUG,
ctx: LogContext{"field1": "value1", "field2": "value2"},
message: "",
expected: `"field1"\s*\:\s*"value1"|"field2"\s*\:\s*"value2"`,
},
{ // _test message
level: DEBUG,
ctx: nil,
message: "My_message",
expected: `"message"\s*\:\s*"My_message"`,
},
}
for _, s := range scenarios {
check := NewLogJSONEncoder().Format(s.level, s.message, s.ctx)
match, _ := regexp.Match(s.expected, []byte(check))
if !match {
t.Errorf("didn't validated (%s) output", check)
}
}
})
})
}
func Test_LogJSONEncoderCreator(t *testing.T) {
t.Run("NewLogJSONEncoderCreator", func(t *testing.T) {
t.Run("creation", func(t *testing.T) {
if NewLogJSONEncoderCreator() == nil {
t.Error("didn't returned the expected reference")
}
})
})
t.Run("Accept", func(t *testing.T) {
t.Run("accept only json format", func(t *testing.T) {
scenarios := []struct {
format string
expected bool
}{
{ // _test json format
format: LogFormatJSON,
expected: true,
},
{ // _test non-json format
format: "unknown",
expected: false,
},
}
for _, s := range scenarios {
if check := NewLogJSONEncoderCreator().Accept(s.format); check != s.expected {
t.Errorf("(%v) for the (%s) format", check, s.format)
}
}
})
})
t.Run("Create", func(t *testing.T) {
t.Run("create json formatter", func(t *testing.T) {
sut, e := NewLogJSONEncoderCreator().Create()
switch {
case e != nil:
t.Errorf("unexpected (%v) error", e)
case sut == nil:
t.Error("didn't returned a valid reference")
default:
switch sut.(type) {
case *LogJSONEncoder:
default:
t.Errorf("didn't returned a new json formatter")
}
}
})
})
}
func Test_LogWriterFactory(t *testing.T) {
t.Run("NewLogWriterFactory", func(t *testing.T) {
t.Run("creation with empty creator list", func(t *testing.T) {
sut := NewLogWriterFactory(nil)
if sut == nil {
t.Error("didn't returned the expected reference")
}
})
t.Run("creation with creator list", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
creator := NewMockLogWriterCreator(ctrl)
sut := NewLogWriterFactory([]LogWriterCreator{creator})
if sut == nil {
t.Error("didn't returned the expected reference")
} else if (*sut)[0] != creator {
t.Error("didn't stored the passed creator")
}
})
})
t.Run("Create", func(t *testing.T) {
t.Run("nil config", func(t *testing.T) {
src, e := NewLogWriterFactory(nil).Create(nil)
switch {
case src != nil:
t.Error("returned a valid reference")
case e == nil:
t.Error("didn't returned the expected error")
case !errors.Is(e, ErrNilPointer):
t.Errorf("(%v) when expecting (%v)", e, ErrNilPointer)
}
})
t.Run("unrecognized writer type", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
config := ConfigPartial{}
creator := NewMockLogWriterCreator(ctrl)
creator.EXPECT().Accept(&config).Return(false).Times(1)
sut := NewLogWriterFactory([]LogWriterCreator{creator})
writer, e := sut.Create(&config)
switch {
case writer != nil:
t.Error("returned a config writer")
case e == nil:
t.Error("didn't returned the expected error")
case !errors.Is(e, ErrInvalidLogConfig):
t.Errorf("(%v) when expecting (%v)", e, ErrInvalidLogConfig)
}
})
t.Run("create the config writer", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
config := ConfigPartial{}
writer := NewMockLogWriter(ctrl)
creator := NewMockLogWriterCreator(ctrl)
creator.EXPECT().Accept(&config).Return(true).Times(1)
creator.EXPECT().Create(&config).Return(writer, nil).Times(1)
sut := NewLogWriterFactory([]LogWriterCreator{creator})
if s, e := sut.Create(&config); e != nil {
t.Errorf("unexpected (%v) error", e)
} else if !reflect.DeepEqual(s, writer) {
t.Error("didn't returned the created writer")
}
})
})
}
func Test_Stream(t *testing.T) {
t.Run("Close", func(t *testing.T) {
t.Run("should call flush on closing the stream", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer func() { ctrl.Finish() }()
writer := NewMockWriter(ctrl)
gomock.InOrder(
writer.EXPECT().Write([]byte("formatted 1\n")).Return(0, nil),
writer.EXPECT().Write([]byte("formatted 2\n")).Return(0, nil),
writer.EXPECT().Write([]byte("formatted 3\n")).Return(0, nil),
)
formatter := NewMockLogFormatter(ctrl)
gomock.InOrder(
formatter.EXPECT().Format(FATAL, "message 1").Return("formatted 1"),
formatter.EXPECT().Format(FATAL, "message 2").Return("formatted 2"),
formatter.EXPECT().Format(FATAL, "message 3").Return("formatted 3"),
)
sut := &LogStream{
Formatter: formatter,
Channels: []string{},
Level: DEBUG,
Writer: writer,
}
_ = sut.Broadcast(FATAL, "message 1")
_ = sut.Broadcast(FATAL, "message 2")
_ = sut.Broadcast(FATAL, "message 3")
if e := sut.Close(); e != nil {
t.Errorf("unexpected (%v) error", e)
}
})
})
t.Run("HasChannel", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
sut := &LogStream{
Formatter: NewMockLogFormatter(ctrl),
Channels: []string{"channel.1", "channel.2"},
Level: WARNING,
Writer: nil,
}
t.Run("check the channel registration", func(t *testing.T) {
switch {
case !sut.HasChannel("channel.1"):
t.Error("'channel.1' channel was not found")
case !sut.HasChannel("channel.2"):
t.Error("'channel.2' channel was not found")
case sut.HasChannel("channel.3"):
t.Error("'channel.3' channel was found")
}
})
})
t.Run("ListChannels", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
channels := []string{"channel.1", "channel.2"}
sut := &LogStream{
Formatter: NewMockLogFormatter(ctrl),
Channels: channels,
Level: WARNING,
Writer: nil,
}
t.Run("list the registered Channels", func(t *testing.T) {
if check := sut.ListChannels(); !reflect.DeepEqual(check, channels) {
t.Errorf("returned the (%v) list of Channels", check)
}
})
})
t.Run("AddChannel", func(t *testing.T) {
t.Run("register a new channel", func(t *testing.T) {
scenarios := []struct {
state struct {
channels []string
level LogLevel
}
channel string
expected []string
}{
{ // adding into an empty list
state: struct {
channels []string
level LogLevel
}{
channels: []string{},
level: DEBUG,
},
channel: "channel.1",
expected: []string{"channel.1"},
},
{ // adding should keep sorting
state: struct {
channels []string
level LogLevel
}{
channels: []string{"channel.1", "channel.3"},
level: DEBUG,
},
channel: "channel.2",
expected: []string{"channel.1", "channel.2", "channel.3"},
},
{ // adding an already existent should result in a no-op
state: struct {
channels []string
level LogLevel
}{
channels: []string{"channel.1", "channel.2", "channel.3"},
level: DEBUG,
},
channel: "channel.2",
expected: []string{"channel.1", "channel.2", "channel.3"},
},
}
for _, s := range scenarios {
test := func() {
ctrl := gomock.NewController(t)
defer func() { ctrl.Finish() }()
sut := &LogStream{
Formatter: NewMockLogFormatter(ctrl),
Channels: s.state.channels,
Level: s.state.level,
Writer: nil,
}
sut.AddChannel(s.channel)
if check := sut.ListChannels(); !reflect.DeepEqual(check, s.expected) {
t.Errorf("returned the (%v) list of Channels", check)
}
}
test()
}
})
})
t.Run("RemoveChannel", func(t *testing.T) {
t.Run("unregister a channel", func(t *testing.T) {
scenarios := []struct {
state struct {
channels []string
level LogLevel
}
channel string
expected []string
}{
{ // removing from an empty list
state: struct {
channels []string
level LogLevel
}{
channels: []string{},
level: DEBUG,
},
channel: "channel.1",
expected: []string{},
},
{ // removing a non-existing channel
state: struct {
channels []string
level LogLevel
}{
channels: []string{"channel.1", "channel.3"},
level: DEBUG,
},
channel: "channel.2",
expected: []string{"channel.1", "channel.3"},
},
{ // removing an existing channel
state: struct {
channels []string
level LogLevel
}{
channels: []string{"channel.1", "channel.2", "channel.3"},
level: DEBUG,
},
channel: "channel.2",
expected: []string{"channel.1", "channel.3"},
},
}
for _, s := range scenarios {
test := func() {
ctrl := gomock.NewController(t)
defer func() { ctrl.Finish() }()
sut := &LogStream{
Formatter: NewMockLogFormatter(ctrl),
Channels: s.state.channels,
Level: s.state.level,
Writer: nil,
}
sut.RemoveChannel(s.channel)
if check := sut.ListChannels(); !reflect.DeepEqual(check, s.expected) {
t.Errorf("returned the (%v) list of Channels", check)
}
}
test()
}
})
})
t.Run("Format", func(t *testing.T) {
t.Run("return message if there is no formatter", func(t *testing.T) {
msg := "message"
level := WARNING
sut := &LogStream{Formatter: nil,
Channels: []string{},
Level: level,
Writer: nil,
}
if check := sut.Format(level, msg, LogContext{"field": "value"}); check != msg {
t.Errorf("returned the (%v) formatted message", check)
}
})
t.Run("return formatter response if formatter is present without context", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
msg := "message"
expected := "formatted message"
level := WARNING
formatter := NewMockLogFormatter(ctrl)
formatter.EXPECT().Format(level, msg).Return(expected).Times(1)
sut := &LogStream{
Formatter: formatter,
Channels: []string{},
Level: level,
Writer: nil,
}
if check := sut.Format(level, msg); check != expected {
t.Errorf("(%v) formatted message", check)
}
})
t.Run("return formatter response if formatter is present with context", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
msg := "message"
ctx := LogContext{"field": "value"}
expected := "formatted message"
level := WARNING
formatter := NewMockLogFormatter(ctrl)
formatter.EXPECT().Format(level, msg, ctx).Return(expected).Times(1)
sut := &LogStream{
Formatter: formatter,
Channels: []string{},
Level: level,
Writer: nil,
}
if check := sut.Format(level, msg, ctx); check != expected {
t.Errorf("(%v) formatted message", check)
}
})
})
t.Run("Signal", func(t *testing.T) {
t.Run("buffer output messages", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer func() { ctrl.Finish() }()
writer := NewMockWriter(ctrl)
formatter := NewMockLogFormatter(ctrl)
formatter.
EXPECT().
Format(FATAL, "message").
Return("formatted").
Times(1)
sut := &LogStream{
Formatter: formatter,
Channels: []string{"channel"},
Level: DEBUG,
Writer: writer,
}
if e := sut.Signal("channel", FATAL, "message"); e != nil {
t.Errorf("unexpected (%v) error", e)
} else if len(sut.Buffer) == 0 {
t.Error("didn't buffered the logging message")
} else if sut.Buffer[0] != "formatted" {
t.Error("buffered the wrong message")
}
})
t.Run("signal message to the writer without context", func(t *testing.T) {
scenarios := []struct {
state struct {
channels []string
level LogLevel
}
call struct {
level LogLevel
channel string
message string
}
callTimes int
expected string
}{
{ // signal through a valid channel with a not filtered level
state: struct {
channels []string
level LogLevel
}{
channels: []string{"dummy_channel"},
level: WARNING,
},
call: struct {
level LogLevel
channel string
message string
}{
level: FATAL,
channel: "dummy_channel",
message: "dummy_message",
},
callTimes: 1,
expected: `{"message" : "dummy_message"}`,
},
{ // signal through a valid channel with a filtered level
state: struct {
channels []string
level LogLevel
}{
channels: []string{"dummy_channel"},
level: WARNING,
},
call: struct {
level LogLevel
channel string
message string
}{
level: DEBUG,
channel: "dummy_channel",
message: "dummy_message",
},
callTimes: 0,
expected: `{"message" : "dummy_message"}`,
},
{ // signal through a valid channel with an unregistered channel
state: struct {
channels []string
level LogLevel
}{
channels: []string{"dummy_channel"},
level: WARNING,
},
call: struct {
level LogLevel
channel string
message string
}{
level: FATAL,
channel: "not_a_valid_dummy_channel",
message: "dummy_message",
},
callTimes: 0,
expected: `{"message" : "dummy_message"}`,
},
}
for _, s := range scenarios {
test := func() {
ctrl := gomock.NewController(t)
defer func() { ctrl.Finish() }()
writer := NewMockWriter(ctrl)
writer.EXPECT().Write([]byte(s.expected + "\n")).Times(s.callTimes)
formatter := NewMockLogFormatter(ctrl)
formatter.
EXPECT().
Format(s.call.level, s.call.message).
Return(s.expected).
Times(s.callTimes)
sut := &LogStream{
Formatter: formatter,
Channels: s.state.channels,
Level: s.state.level,
Writer: writer,
}
if e := sut.Signal(s.call.channel, s.call.level, s.call.message); e != nil {
t.Errorf("unexpected (%v) error", e)
}
if e := sut.Flush(); e != nil {
t.Errorf("unexpected (%v) error", e)
}
}
test()
}
})
t.Run("signal message to the writer with context", func(t *testing.T) {
scenarios := []struct {
state struct {
channels []string
level LogLevel
}
call struct {
level LogLevel
channel string
ctx LogContext
message string
}
callTimes int
expected string
}{
{ // signal through a valid channel with a not filtered level
state: struct {
channels []string
level LogLevel
}{
channels: []string{"dummy_channel"},
level: WARNING,
},
call: struct {
level LogLevel
channel string
ctx LogContext
message string
}{
level: FATAL,
channel: "dummy_channel",
ctx: LogContext{},
message: "dummy_message",
},
callTimes: 1,
expected: `{"message" : "dummy_message"}`,
},
{ // signal through a valid channel with a filtered level
state: struct {
channels []string
level LogLevel
}{
channels: []string{"dummy_channel"},
level: WARNING,
},
call: struct {
level LogLevel
channel string
ctx LogContext
message string
}{
level: DEBUG,
channel: "dummy_channel",
ctx: LogContext{},
message: "dummy_message",
},
callTimes: 0,
expected: `{"message" : "dummy_message"}`,
},
{ // signal through a valid channel with an unregistered channel
state: struct {
channels []string
level LogLevel
}{
channels: []string{"dummy_channel"},
level: WARNING,
},
call: struct {
level LogLevel
channel string
ctx LogContext
message string
}{
level: FATAL,
channel: "not_a_valid_dummy_channel",
ctx: LogContext{},
message: "dummy_message",
},
callTimes: 0,
expected: `{"message" : "dummy_message"}`,
},
}
for _, s := range scenarios {
test := func() {
ctrl := gomock.NewController(t)
defer func() { ctrl.Finish() }()
writer := NewMockWriter(ctrl)
writer.EXPECT().Write([]byte(s.expected + "\n")).Times(s.callTimes)
formatter := NewMockLogFormatter(ctrl)
formatter.
EXPECT().
Format(s.call.level, s.call.message, s.call.ctx).
Return(s.expected).
Times(s.callTimes)
sut := &LogStream{
Formatter: formatter,
Channels: s.state.channels,
Level: s.state.level,
Writer: writer,
}
if e := sut.Signal(s.call.channel, s.call.level, s.call.message, s.call.ctx); e != nil {
t.Errorf("unexpected (%v) error", e)
}
if e := sut.Flush(); e != nil {
t.Errorf("unexpected (%v) error", e)
}
}
test()
}
})
})
t.Run("Broadcast", func(t *testing.T) {
t.Run("buffer output messages", func(t *testing.T) {
ctrl := gomock.NewController(t)
defer func() { ctrl.Finish() }()
writer := NewMockWriter(ctrl)
formatter := NewMockLogFormatter(ctrl)
formatter.
EXPECT().
Format(FATAL, "message").
Return("formatted").
Times(1)
sut := &LogStream{
Formatter: formatter,
Channels: []string{"channel"},