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log_test.go
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log_test.go
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package app
import (
"bytes"
"testing"
"github.com/pkg/errors"
"github.com/stretchr/testify/assert"
)
func TestLogs(t *testing.T) {
buff := &bytes.Buffer{}
Loggers = []Logger{
NewLogger(buff, buff, true, true),
}
Log("hello world")
WhenDebug(func() {
Debug("goodbye world")
})
t.Log(buff.String())
}
func TestLogger(t *testing.T) {
buffer := &bytes.Buffer{}
logger := NewLogger(buffer, buffer, true, false)
logger.Log("a message")
logger.Log("a message with args: %v", 42)
logger.Log("a message with line return\nhere is")
logger.Log("an error: %s", errors.New("error"))
logger.Debug("a debug message")
logger.Debug("a debug message with args: %v", 42)
logger.WhenDebug(func() {
logger.Debug("yoda is strong")
})
assert.Contains(t, buffer.String(), "yoda is strong")
logger = NewLogger(buffer, buffer, false, true)
logger.WhenDebug(func() {
logger.Debug("vader is strong")
})
assert.NotContains(t, buffer.String(), "vader is strong")
t.Log(buffer.String())
}