Uniformly set default log level to INFO

Commit a98f548 ("Capture INFO and WARN from tracing by default")
adjusted the tracing part of the crate to use the INFO log level by
default. With this change we switch the log part over to doing the same.

Author: d-e-s-o

macros/src/lib.rs

@@ -155,21 +155,20 @@ impl AttributeArgs {
 /// Expand the initialization code for the `log` crate.
 #[cfg(all(feature = "log", not(feature = "trace")))]
 fn expand_logging_init(attribute_args: &AttributeArgs) -> Tokens {
-  let add_default_log_filter = if let Some(default_log_filter) = &attribute_args.default_log_filter
-  {
-    quote! {
-      let env_logger_builder = env_logger_builder
-        .parse_env(::test_log::env_logger::Env::default().default_filter_or(#default_log_filter));
-    }
-  } else {
-    quote! {}
-  };
+  let default_filter = attribute_args
+    .default_log_filter
+    .as_ref()
+    .unwrap_or(&::std::borrow::Cow::Borrowed("info"));
 
   quote! {
     {
-      let mut env_logger_builder = ::test_log::env_logger::builder();
-      #add_default_log_filter
-      let _ = env_logger_builder.is_test(true).try_init();
+      let mut env_logger_builder = ::test_log::env_logger::builder()
+        .parse_env(
+          ::test_log::env_logger::Env::default()
+            .default_filter_or(#default_filter)
+        )
+        .is_test(true)
+        .try_init();
     }
   }
 }