diff --git a/Cargo.toml b/Cargo.toml
index e35076dc..7d83e920 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -51,7 +51,7 @@ tracing-subscriber = { version = "0.3.17", optional = true, features = ["env-fil
 walkdir = "2.3.3"
 
 [features]
-default = []
+default = ["compare", "foreign_document_test"]
 compare = []
 foreign_document_test = ["compare", "dep:tokio"]
 tracing = ["dep:opentelemetry", "dep:opentelemetry-otlp", "dep:opentelemetry-semantic-conventions", "dep:tokio", "dep:tracing", "dep:tracing-opentelemetry", "dep:tracing-subscriber"]
diff --git a/src/bin_foreign_document_test.rs b/src/bin_foreign_document_test.rs
index 0fb77efe..ef20611f 100644
--- a/src/bin_foreign_document_test.rs
+++ b/src/bin_foreign_document_test.rs
@@ -1,6 +1,7 @@
 #![feature(round_char_boundary)]
 #![feature(exact_size_is_empty)]
 use std::io::Read;
+use std::path::Path;
 
 use organic::compare::run_anonymous_compare;
 use organic::compare::run_compare_on_file;
@@ -66,14 +67,46 @@ enum TestConfig<'s> {
 #[derive(Debug)]
 struct TestLayer<'s> {
     name: &'s str,
+    children: Vec<TestConfig<'s>>,
 }
 
 #[derive(Debug)]
 struct SingleFile<'s> {
+    file_path: &'s str,
+}
+
+#[derive(Debug)]
+struct AnonymousFile {
+    name: String,
+}
+
+#[derive(Debug)]
+enum TestResult<'s> {
+    ResultLayer(ResultLayer<'s>),
+    SingleFileResult(SingleFileResult<'s>),
+    AnonymousFileResult(AnonymousFileResult),
+}
+
+#[derive(Debug)]
+struct ResultLayer<'s> {
+    name: &'s str,
+    children: Vec<TestResult<'s>>,
+}
+
+#[derive(Debug)]
+struct SingleFileResult<'s> {
     name: &'s str,
 }
 
 #[derive(Debug)]
-struct AnonymousFile<'s> {
+struct AnonymousFileResult {
     name: String,
 }
+
+impl<'s> SingleFile<'s> {
+    fn run_test(&self) -> SingleFileResult<'s> {
+        let result = run_compare_on_file(self.file_path);
+        // foo
+        todo!()
+    }
+}