diff --git a/testing/end-to-end/init.swift b/testing/end-to-end/init.swift
index 425074a..3d3ae7f 100755
--- a/testing/end-to-end/init.swift
+++ b/testing/end-to-end/init.swift
@@ -13,7 +13,7 @@ func fileExists(atPath path: String) -> Bool {
     return exists && !isDirectory.boolValue
 }
 
-print("Running tests for cargo swift init...")
+print("Running tests for cargo swift init in macro mode...")
 
 let cargoSwiftInit = Process()
 let projectName = "ExampleProject"
@@ -23,6 +23,37 @@ cargoSwiftInit.arguments = ["cargo", "swift", "init", projectName, "-y", "--sile
 try! cargoSwiftInit.run()
 cargoSwiftInit.waitUntilExit()
 
+guard dirExists(atPath: projectName) else {
+	error("Project directory does not exist")
+	exit(1) 
+}
+guard fileExists(atPath: "\(projectName)/Cargo.toml") else { 
+	error("No Cargo.toml found in project directory")
+	exit(1)
+}
+guard fileExists(atPath: "\(projectName)/.gitignore") else { 
+	error("No .gitignore found in project directory")
+	exit(1)
+}
+guard dirExists(atPath: "\(projectName)/src") else { 
+	error("No src-directory found in project directory")
+	exit(1)
+}
+guard fileExists(atPath: "\(projectName)/src/lib.rs") else { 
+	error("No lib.rs file found in src directory")
+	exit(1)
+}
+
+print("Running tests for cargo swift init in udl mode...")
+
+let cargoSwiftInit = Process()
+let projectName = "ExampleProject"
+cargoSwiftInit.executableURL = URL(fileURLWithPath: "/usr/bin/env")
+cargoSwiftInit.arguments = ["cargo", "swift", "init", projectName, "-y", "--silent", "--udl"]
+
+try! cargoSwiftInit.run()
+cargoSwiftInit.waitUntilExit()
+
 guard dirExists(atPath: projectName) else {
 	error("Project directory does not exist")
 	exit(1) 
@@ -47,5 +78,9 @@ guard fileExists(atPath: "\(projectName)/src/lib.rs") else {
 	error("No lib.rs file found in src directory")
 	exit(1)
 }
+guard fileExists(atPath: "\(projectName)/src/lib.udl") else { 
+	error("No lib.udl file found in src directory")
+	exit(1)
+}
 
 print("Tests for cargo swift init passed!")