fix(tests): add missing import for tests (#1375)

tests/v2/test_peer_exchange.nim

@@ -4,6 +4,7 @@ import
   std/[sequtils, options],
   stew/shims/net,
   testutils/unittests,
+  chronicles,
   chronos,
   libp2p/peerid,
   libp2p/crypto/crypto,

tests/v2/test_peer_manager.nim

@@ -4,6 +4,7 @@ import
   std/[options, sequtils],
   stew/shims/net as stewNet,
   testutils/unittests,
+  chronicles,
   json_rpc/rpcserver,
   json_rpc/rpcclient,
   eth/keys,

tests/v2/test_waku_filter.nim

@@ -3,7 +3,8 @@
 import
   std/[options, tables],
   testutils/unittests,
-  chronos, 
+  chronicles,
+  chronos,
   libp2p/crypto/crypto
 import
   ../../waku/v2/node/peer_manager/peer_manager,

tests/v2/test_waku_lightpush.nim

@@ -2,6 +2,7 @@
 
 import
   testutils/unittests, 
+  chronicles,
   chronos, 
   libp2p/crypto/crypto
 import

tests/v2/test_waku_store_client.nim

@@ -2,7 +2,8 @@
 
 import
   std/options,
-  testutils/unittests, 
+  testutils/unittests,
+  chronicles,
   chronos, 
   libp2p/crypto/crypto
 import

tests/v2/test_wakunode_filter.nim

@@ -3,6 +3,7 @@
 import
   stew/shims/net as stewNet, 
   testutils/unittests,
+  chronicles,
   chronos, 
   libp2p/crypto/crypto
 import

tests/v2/test_wakunode_lightpush.nim

@@ -3,6 +3,7 @@
 import
   stew/shims/net as stewNet, 
   testutils/unittests,
+  chronicles,
   chronos, 
   libp2p/crypto/crypto,
   libp2p/switch

waku/v2/README.md

@@ -45,14 +45,25 @@ Setting up a `wakunode2` on the smallest [digital ocean](https://docs.digitaloce
 make test2
 ```
 
-You can also run a specific test (and alter compile options as you want):
+To run a specific test.
 ```bash
 # Get a shell with the right environment variables set
 ./env.sh bash
 # Run a specific test
 nim c -r ./tests/v2/test_waku_filter.nim
 ```
 
+You can also alter compile options. For example, if you want a less verbose output you can do the following. For more, refer to the [compiler flags](https://nim-lang.org/docs/nimc.html#compiler-usage) and [chronicles documentation](https://github.com/status-im/nim-chronicles#compile-time-configuration).
+
+```bash
+nim c -r -d:chronicles_log_level=WARN --verbosity=0 --hints=off ./tests/v2/test_waku_filter.nim
+```
+
+You may also want to change the `outdir` to a folder ignored by git.
+```bash
+nim c -r -d:chronicles_log_level=WARN --verbosity=0 --hints=off --outdir=build ./tests/v2/test_waku_filter.nim
+```
+
 ### Waku v2 Protocol Example
 
 There is a more basic example, more limited in features and configuration than