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logger_test.go
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logger_test.go
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package main
import (
"bufio"
"fmt"
"os"
"path/filepath"
"testing"
"time"
"github.com/creativeprojects/clog"
"github.com/creativeprojects/resticprofile/constants"
"github.com/creativeprojects/resticprofile/term"
"github.com/creativeprojects/resticprofile/util"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func readTail(t *testing.T, filename string, count int) (lines []string) {
file, e := os.Open(filename)
require.NoError(t, e)
defer file.Close()
for s := bufio.NewScanner(file); s.Scan(); require.NoError(t, s.Err()) {
lines = append(lines, s.Text())
}
if len(lines) < count {
count = len(lines)
}
return lines[len(lines)-count:]
}
func TestFileHandlerWithTemporaryDirMarker(t *testing.T) {
util.ClearTempDir()
defer util.ClearTempDir()
logFile := filepath.Join(util.MustGetTempDir(), "sub", "file.log")
assert.NoFileExists(t, logFile)
handler, _, err := getFileHandler(filepath.Join(constants.TemporaryDirMarker, "sub", "file.log"))
require.NoError(t, err)
assert.FileExists(t, logFile)
assert.NoError(t, handler.Close())
util.ClearTempDir()
assert.NoFileExists(t, logFile)
}
func TestFileHandler(t *testing.T) {
logFile := filepath.Join(t.TempDir(), "file.log")
handler, writer, err := getFileHandler(logFile)
require.NoError(t, err)
defer handler.Close()
require.Implements(t, (*term.Flusher)(nil), writer)
flusher := writer.(term.Flusher)
log := func(line string) {
assert.NoError(t, handler.LogEntry(clog.LogEntry{Level: clog.LevelInfo, Format: line}))
}
// output is accessible while handler is not closed
{
log("log-line-1")
assert.NoError(t, flusher.Flush())
lines := readTail(t, logFile, 1)
require.NotEmpty(t, lines)
assert.Regexp(t, `^.+\slog-line-1$`, lines[0])
}
// output is buffered
{
log("log-line-2")
assert.Regexp(t, `^.+\slog-line-1$`, readTail(t, logFile, 1)[0])
assert.NoError(t, flusher.Flush())
assert.Regexp(t, `^.+\slog-line-2$`, readTail(t, logFile, 1)[0])
}
// output is auto-flushed
{
log("log-line-3")
assert.Regexp(t, `^.+\slog-line-2$`, readTail(t, logFile, 1)[0])
time.Sleep(300 * time.Millisecond)
assert.Regexp(t, `^.+\slog-line-3$`, readTail(t, logFile, 1)[0])
}
// output is formatted as expected
{
lines := readTail(t, logFile, 10)
require.Len(t, lines, 3)
for i := 0; i < 3; i++ {
assert.Regexp(t, fmt.Sprintf(`^.+\slog-line-%d$`, i+1), lines[i])
}
}
}
func TestParseCommandOutput(t *testing.T) {
tests := []struct {
co string
all, log bool
}{
{co: "", all: false, log: false},
{co: "auto", all: term.OsStdoutIsTerminal(), log: true},
{co: "log", all: false, log: true},
{co: "console", all: false, log: false},
{co: "all", all: true, log: false},
{co: "all,log", all: true, log: true},
{co: "console,log", all: true, log: true},
{co: "log,console", all: true, log: true},
{co: "log,a", all: false, log: true},
{co: "console,a", all: false, log: false},
{co: " auto ", all: term.OsStdoutIsTerminal(), log: true},
{co: " all ", all: true, log: false},
{co: " log ", all: false, log: true},
{co: " console ", all: false, log: false},
{co: " console , log ", all: true, log: true},
{co: " log , console ", all: true, log: true},
}
for i, test := range tests {
t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
a, l := parseCommandOutput(test.co)
assert.Equal(t, test.all, a, "all")
assert.Equal(t, test.log, l, "log")
})
}
}
// FIXME: writing into a closed handler shouldn't panic
//
// func TestCloseFileHandler(t *testing.T) {
// logFile := filepath.Join(t.TempDir(), "file.log")
// handler, writer, err := getFileHandler(logFile)
// require.NoError(t, err)
// assert.NotNil(t, handler)
// assert.NotNil(t, writer)
// defer handler.Close()
// log := func(line string) {
// assert.NoError(t, handler.LogEntry(clog.LogEntry{Level: clog.LevelInfo, Format: line}))
// }
// log("log-line-1")
// handler.Close()
// log("log-line-2")
// }