Enable formatting (#188)

tests/unit/Feature/Formatting.cpp

@@ -0,0 +1,17 @@
+#include "Test/Test.h"
+#include "Feature/Formatting.h"
+
+namespace clice::testing {
+
+namespace {
+
+suite<"Formatting"> suite = [] {
+    test("Simple") = [] {
+        auto edits = feature::document_format("main.cpp", "int main() { return 0; }", std::nullopt);
+        expect(ne(edits.size(), 0));
+    };
+};
+
+}  // namespace
+
+}  // namespace clice::testing