Treat warnings as failures even in tests

.github/workflows/test.yml

@@ -69,7 +69,7 @@ jobs:
         wget https://snapshots.mitmproxy.org/5.2/mitmproxy-5.2-linux.tar.gz -O - | tar -xz && ./mitmdump -p 8888 --modify-header "/From-Proxy/Hello" &
     - name: Run Tests units
       run: |
-        cargo test
+        cargo test --features strict
     - name: Run Integration Tests
       run: |
          export PATH="$PWD/target/debug:$PATH"

packages/hurl/src/runner/query.rs

@@ -294,9 +294,8 @@ impl Value {
 #[cfg(test)]
 pub mod tests {
     use super::*;
-    use hurl_core::ast::{Pos, SourceInfo};
-    #[macro_use]
     use hex_literal::hex;
+    use hurl_core::ast::{Pos, SourceInfo};
 
     pub fn xpath_invalid_query() -> Query {
         // xpath ???

packages/hurl/src/runner/subquery.rs

@@ -159,10 +159,6 @@ pub mod tests {
     #[test]
     fn test_subquery_count() {
         let variables = HashMap::new();
-        let whitespace = Whitespace {
-            value: String::from(""),
-            source_info: SourceInfo::init(0, 0, 0, 0),
-        };
         let subquery = Subquery {
             source_info: SourceInfo::init(1, 1, 1, 20),
             value: SubqueryValue::Count {},