feat(test): use tracing instead of fern for agent mock

src/filter/filter_body.rs

@@ -58,7 +58,8 @@ impl FilterBodyAction {
 
         match self.do_filter(data.clone()) {
             Ok(filtered) => filtered,
-            Err(_) => {
+            Err(err) => {
+                log::error!("error while filtering: {}", err);
                 self.in_error = true;
 
                 data
@@ -85,7 +86,8 @@ impl FilterBodyAction {
 
         match self.do_end() {
             Ok(end) => end,
-            Err(_) => {
+            Err(err) => {
+                log::error!("error while ending filtering: {}", err);
                 self.in_error = true;
 
                 Vec::new()

src/filter/gzip_filter_body.rs

@@ -32,6 +32,7 @@ impl GzDecodeFilterBody {
         let mut decoder = GzDecoder::new(Cursor::new(Vec::new()));
         std::mem::swap(&mut self.decoder, &mut decoder);
 
+        decoder.try_finish()?;
         Ok(decoder.finish()?.into_inner())
     }
 }
@@ -56,6 +57,7 @@ impl GzEncodeFilterBody {
         let mut encoder = GzEncoder::new(Cursor::new(Vec::new()), flate2::Compression::default());
         std::mem::swap(&mut self.encoder, &mut encoder);
 
+        encoder.try_finish()?;
         Ok(encoder.finish()?.into_inner())
     }
 }

src/filter/html_body_action/mod.rs

@@ -70,16 +70,16 @@ impl HtmlBodyVisitor {
 }
 
 pub fn evaluate(data: &str, expression: &str) -> bool {
-    let document = scraper::Html::parse_fragment(data);
-    let selector_result = scraper::Selector::parse(expression);
-
-    if selector_result.is_err() {
-        error!("Cannot parse selector {}: {:?}", expression, selector_result.err().unwrap());
+    let selector = match scraper::Selector::parse(expression) {
+        Ok(selector) => selector,
+        Err(err) => {
+            log::error!("cannot parse selector {}: {:?}", expression, err);
 
-        return false;
-    }
+            return false;
+        }
+    };
 
-    let selector = selector_result.unwrap();
+    let document = scraper::Html::parse_fragment(data);
     let mut select = document.select(&selector);
 
     select.next().is_some()