From e224591f430c032d9d31dfdc4c285ef4991f1317 Mon Sep 17 00:00:00 2001
From: Adam Szkoda <adaszko@gmail.com>
Date: Mon, 29 Jun 2020 09:32:24 +0200
Subject: [PATCH] Enable logging in tests

---
 Cargo.lock                                    |  1 +
 beacon_node/beacon_chain/Cargo.toml           |  1 +
 beacon_node/beacon_chain/tests/store_tests.rs | 12 ++++++++++--
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 3ea81ef7767..8e48c786c60 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -325,6 +325,7 @@ dependencies = [
  "serde_json",
  "serde_yaml",
  "slog",
+ "slog-term",
  "sloggers",
  "slot_clock",
  "smallvec 1.4.0",
diff --git a/beacon_node/beacon_chain/Cargo.toml b/beacon_node/beacon_chain/Cargo.toml
index 2109f882ba3..cd826826edf 100644
--- a/beacon_node/beacon_chain/Cargo.toml
+++ b/beacon_node/beacon_chain/Cargo.toml
@@ -25,6 +25,7 @@ serde_derive = "1.0.110"
 serde_yaml = "0.8.11"
 serde_json = "1.0.52"
 slog = { version = "2.5.2", features = ["max_level_trace"] }
+slog-term = "2.6.0"
 sloggers = "1.0.0"
 slot_clock = { path = "../../common/slot_clock" }
 eth2_hashing = "0.1.0"
diff --git a/beacon_node/beacon_chain/tests/store_tests.rs b/beacon_node/beacon_chain/tests/store_tests.rs
index c5207b3216c..6ab2908bcec 100644
--- a/beacon_node/beacon_chain/tests/store_tests.rs
+++ b/beacon_node/beacon_chain/tests/store_tests.rs
@@ -3,6 +3,11 @@
 #[macro_use]
 extern crate lazy_static;
 
+#[macro_use]
+extern crate slog;
+extern crate slog_term;
+
+use crate::slog::Drain;
 use beacon_chain::attestation_verification::Error as AttnError;
 use beacon_chain::test_utils::{
     AttestationStrategy, BeaconChainHarness, BlockStrategy, DiskHarnessType,
@@ -10,7 +15,6 @@ use beacon_chain::test_utils::{
 use beacon_chain::BeaconSnapshot;
 use beacon_chain::StateSkipConfig;
 use rand::Rng;
-use sloggers::{null::NullLoggerBuilder, Build};
 use std::collections::HashMap;
 use std::collections::HashSet;
 use std::sync::Arc;
@@ -40,7 +44,11 @@ fn get_store(db_path: &TempDir) -> Arc<HotColdDB<E, LevelDB<E>, LevelDB<E>>> {
     let hot_path = db_path.path().join("hot_db");
     let cold_path = db_path.path().join("cold_db");
     let config = StoreConfig::default();
-    let log = NullLoggerBuilder.build().expect("logger should build");
+
+    let decorator = slog_term::PlainDecorator::new(slog_term::TestStdoutWriter);
+    let drain = slog_term::FullFormat::new(decorator).build();
+    let log = slog::Logger::root(std::sync::Mutex::new(drain).fuse(), o!());
+
     Arc::new(
         HotColdDB::open(&hot_path, &cold_path, config, spec, log)
             .expect("disk store should initialize"),