Update Makefile and README to standardize build/test process and lauch fuzzer

1 files changed, 9 insertions, 33 deletions

diff --git a/tests/e2e/test_helpers.go b/tests/e2e/test_helpers.go
index 34aae3f..0ae83aa 100644
--- a/tests/e2e/test_helpers.go
+++ b/tests/e2e/test_helpers.go
@@ -1,45 +1,21 @@
 package e2e
 
 import (
+	"fmt"
 	"os"
-	"os/exec"
-	"path/filepath"
-	"runtime"
 )
 
 // GetBinaryPath resolves the path to the wg-wrap binary.
-// It checks the current directory, then the project root, then the system PATH.
-func GetBinaryPath() string {
-	binaryName := "wg-wrap"
-	if runtime.GOOS == "windows" {
-		binaryName += ".exe"
+// It prioritizes the WG_WRAP_BIN environment variable.
+func GetBinaryPath() (string, error) {
+	path := os.Getenv("WG_WRAP_BIN")
+	if path == "" {
+		return "", fmt.Errorf("WG_WRAP_BIN environment variable not set")
 	}
 
-	// 1. Check current working directory
-	if _, err := os.Stat(binaryName); err == nil {
-		abs, _ := filepath.Abs(binaryName)
-		return abs
+	if _, err := os.Stat(path); err != nil {
+		return "", fmt.Errorf("binary not found at path %s: %w", path, err)
 	}
 
-	// 2. Check common project root relative paths
-	// Since go test can be run from root or package dir, we try both.
-	candidates := []string{
-		filepath.Join("..", "..", binaryName), // from tests/e2e
-		filepath.Join("..", binaryName),       // from tests/
-		binaryName,                           // from root
-	}
-	for _, c := range candidates {
-		if _, err := os.Stat(c); err == nil {
-			abs, _ := filepath.Abs(c)
-			return abs
-		}
-	}
-
-	// 3. Check system PATH
-	path, err := exec.LookPath(binaryName)
-	if err == nil {
-		return path
-	}
-
-	return binaryName 
+	return path, nil
 }