[build] fix: ignore logging when running singular tests (#369)

* [build] fix: ignore logging when running singular tests

Ensures that logging is ignored at runtime when running
individual tests using `nim c -r tests/...`

* [build] Allow tests to be run with -d:chronicles_log_level

When running tests with chronicles_log_level set, do not
hide the the logs.

tests/config.nims

@@ -0,0 +1,8 @@
+--path:".."
+--threads:on
+--tlsEmulation:off
+
+when not defined(chronicles_log_level):
+  --define:"chronicles_log_level:NONE" # compile all log statements
+  --define:"chronicles_sinks:textlines[dynamic]" # allow logs to be filtered at runtime
+  --"import":"logging" # ensure that logging is ignored at runtime

tests/logging.nim

@@ -4,3 +4,6 @@ proc ignoreLogging(level: LogLevel, message: LogOutputStr) =
   discard
 
 defaultChroniclesStream.output.writer = ignoreLogging
+
+{.warning[UnusedImport]:off.}
+{.used.}

tests/nim.cfg

@@ -1,6 +0,0 @@
---path:".."
---threads:on
---tlsEmulation:off
-
--d:chronicles_log_level:"NONE" # compile all log statements
--d:chronicles_sinks:"textlines[dynamic]" # allow logs to be filtered by tests

tests/testCodex.nim

@@ -1,4 +1,3 @@
-import ./logging
 import ./codex/teststores
 import ./codex/testblockexchange
 import ./codex/teststorageproofs

tests/testContracts.nim

@@ -1,4 +1,3 @@
-import ./logging
 import ./contracts/testCollateral
 import ./contracts/testContracts
 import ./contracts/testMarket

tests/testIntegration.nim

@@ -1,4 +1,3 @@
-import ./logging
 import ./integration/testIntegration
 import ./integration/testblockexpiration