sets file_logger to return a noop logger if cfg(test)

src/lib.rs

@@ -44,6 +44,7 @@ pub fn nanos(t: DateTime<Utc>) -> u64 {
     (t.timestamp() as u64) * 1_000_000_000_u64 + (t.timestamp_subsec_nanos() as u64)
 }
 
+#[cfg(not(test))]
 pub fn file_logger(path: &str, level: Severity) -> slog::Logger {
     let mut builder = FileLoggerBuilder::new(path);
     builder.level(level);
@@ -51,6 +52,13 @@ pub fn file_logger(path: &str, level: Severity) -> slog::Logger {
     builder.build().unwrap()
 }
 
+
+#[cfg(test)]
+pub fn file_logger(path: &str, level: Severity) -> slog::Logger {
+    use slog::*;
+    Logger::root(Discard, o!())
+}
+
 pub fn dt_nanos(t: DateTime<Utc>) -> i64 {
     (t.timestamp() as i64) * 1_000_000_000_i64 + (t.timestamp_subsec_nanos() as i64)
 }