func TestLoggerWritesEntriesOfAppropriateLevel(t *testing.T) {
logDir := os.TempDir()
logFile := logger.FILE_NAME
log, err := logger.NewLogger("info", logDir, logFile)
assert.NoError(t, err, "Expected new logger not to fail")
filename := path.Join(logDir, logFile)
log.InfoF("TestLog: %s", "InfoLog")
log.ErrorF("TestLog: %s", "ErrorLog")
fileContents, err := readFileContents(filename)
assert.NoError(t, err, "Expected to read created file")
scanner := bufio.NewScanner(bytes.NewBuffer([]byte(fileContents)))
if scanner.Scan() {
line := scanner.Text()
println("text:", line[:4])
assert.Equal(t, line[:4], "INFO")
}
if scanner.Scan() {
assert.Equal(t, scanner.Text()[:4], "ERRO")
}
assert.Contains(t, fileContents, "TestLog: InfoLog", "Expected file to contain log entry")
assert.Contains(t, fileContents, "TestLog: ErrorLog", "Expected file to contain log entry")
}
func TestNewLoggerCreatesAFile(t *testing.T) {
logDir := os.TempDir()
logFile := logger.FILE_NAME
log, err := logger.NewLogger("info", logDir, logFile)
assert.NotNil(t, log, "expected logger to be created")
assert.NoError(t, err, "Expected new logger not to fail")
filename := path.Join(logDir, logFile)
_, err = os.Stat(filename)
println("err:", err)
assert.True(t, !os.IsNotExist(err), "Expected file to be created")
removeFile(t, filename)
}
func TestLoggerWritesEntries(t *testing.T) {
logDir := os.TempDir()
logFile := logger.FILE_NAME
log, err := logger.NewLogger("info", logDir, logFile)
assert.NoError(t, err, "Expected new logger not to fail")
filename := path.Join(logDir, logFile)
log.ErrorF("TestLog: %s", "testdata")
fileContents, err := readFileContents(filename)
assert.NoError(t, err, "Expected to read created file")
println("contents:", fileContents)
assert.Contains(t, fileContents, "TestLog: testdata", "Expected file to contain log entry")
removeFile(t, filename)
}