57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package logger
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import (
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"fmt"
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"io/ioutil"
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"os"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestFileWrite(t *testing.T) {
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fileName := "test_file"
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fileLog := fileName + ".log"
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testData := []byte(string("hello Dalton, how are you doing?"))
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defer func() {
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os.Remove(fileLog)
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}()
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w := NewFileRollingWriter("", fileName, 1000, 2)
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defer w.Close()
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l, err := w.Write(testData)
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assert.NoError(t, err)
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assert.Equal(t, l, len(testData), "expected write length and data length to match")
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d, err := ioutil.ReadFile(fileLog)
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assert.FileExists(t, fileLog, "file doesn't exist at expected path")
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assert.Equal(t, d, testData, "expected data in file to match test data")
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}
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func TestRolling(t *testing.T) {
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fileName := "test_file"
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firstFile := fileName + ".log"
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secondFile := fileName + "-1.log"
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thirdFile := fileName + "-2.log"
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defer func() {
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os.Remove(firstFile)
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os.Remove(secondFile)
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os.Remove(thirdFile)
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}()
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w := NewFileRollingWriter("", fileName, 1000, 2)
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defer w.Close()
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for i := 99; i >= 1; i-- {
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testData := []byte(fmt.Sprintf("%d bottles of beer on the wall...", i))
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w.Write(testData)
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}
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assert.FileExists(t, firstFile, "first file doesn't exist as expected")
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assert.FileExists(t, secondFile, "second file doesn't exist as expected")
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assert.FileExists(t, thirdFile, "third file doesn't exist as expected")
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assert.False(t, exists(fileName+"-3.log"), "limited to two files and there is more")
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}
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