add bracket syntax replace tests

lang/test_ast_comparisons.go

@@ -0,0 +1,59 @@
+package lang
+
+// AST and definition comparison functions for parser tests
+
+// Custom comparison functions (simplified for the new structure)
+func astEqual(got, want AST) bool {
+	if len(got.Definitions) != len(want.Definitions) {
+		return false
+	}
+
+	for i := range got.Definitions {
+		if !definitionEqual(got.Definitions[i], want.Definitions[i]) {
+			return false
+		}
+	}
+	return true
+}
+
+func definitionEqual(got, want Definition) bool {
+	// Server comparison
+	if (got.Server == nil) != (want.Server == nil) {
+		return false
+	}
+	if got.Server != nil && want.Server != nil {
+		if !serverEqual(*got.Server, *want.Server) {
+			return false
+		}
+	}
+
+	// Entity comparison
+	if (got.Entity == nil) != (want.Entity == nil) {
+		return false
+	}
+	if got.Entity != nil && want.Entity != nil {
+		if !entityEqual(*got.Entity, *want.Entity) {
+			return false
+		}
+	}
+
+	// Endpoint comparison
+	if (got.Endpoint == nil) != (want.Endpoint == nil) {
+		return false
+	}
+	if got.Endpoint != nil && want.Endpoint != nil {
+		if !endpointEqual(*got.Endpoint, *want.Endpoint) {
+			return false
+		}
+	}
+
+	// Page comparison (enhanced)
+	if (got.Page == nil) != (want.Page == nil) {
+		return false
+	}
+	if got.Page != nil && want.Page != nil {
+		return pageEqual(*got.Page, *want.Page)
+	}
+
+	return true
+}