test(sdk): Enable logging for tests

Cargo.lock

@@ -2192,6 +2192,7 @@ dependencies = [
  "async-trait",
  "backoff",
  "bytes",
+ "ctor",
  "dashmap",
  "dirs",
  "event-listener",

crates/matrix-sdk/Cargo.toml

@@ -150,5 +150,6 @@ getrandom = { version = "0.2.6", default-features = false, features = ["js"] }
 wasm-bindgen-test = "0.3.30"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
+ctor = "0.1.23"
 tokio = { version = "1.17.0", default-features = false, features = ["rt-multi-thread", "macros"] }
 wiremock = "0.5.13"

crates/matrix-sdk/src/lib.rs

@@ -55,3 +55,13 @@ pub use media::Media;
 
 #[cfg(test)]
 mod test_utils;
+
+#[cfg(all(test, not(target_arch = "wasm32")))]
+#[ctor::ctor]
+fn init_logging() {
+    use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
+    tracing_subscriber::registry()
+        .with(tracing_subscriber::EnvFilter::from_default_env())
+        .with(tracing_subscriber::fmt::layer().with_test_writer())
+        .init();
+}