add test for exclude feature

Author: bit-aloo

src/bootstrap/src/core/config/tests.rs

@@ -515,3 +515,17 @@ fn test_explicit_stage() {
 assert!(!config.explicit_stage_from_config);
 assert!(!config.is_explicit_stage());
 }
+
+#[test]
+fntest_exclude(){
+let config = parse("build.exclude=[\"test/codegen\"]");
+
+let first_excluded = config
+.skip
+.first()
+.expect("Expected at least one excluded path")
+.to_str()
+.expect("Failed to convert excluded path to string");
+
+assert_eq!(first_excluded,"test/codegen");
+}