working towards lightwalletd deb package

cmd/server/main_test.go

@@ -0,0 +1,32 @@
+// Copyright 2021 The Hush developers
+// Released under the GPLv3
+package main
+
+import (
+	"os"
+	"testing"
+)
+
+// TestFileExists checks whether or not the file exists
+func TestFileExists(t *testing.T) {
+	if fileExists("nonexistent-file") {
+		t.Fatal("fileExists unexpected success")
+	}
+	// If the path exists but is a directory, should return false
+	if fileExists(".") {
+		t.Fatal("fileExists unexpected success")
+	}
+	// The following file should exist, it's what's being tested
+	if !fileExists("main.go") {
+		t.Fatal("fileExists failed")
+	}
+}
+
+// fileExists checks if file exists and is not directory to prevent further errors
+func fileExists(filename string) bool {
+	info, err := os.Stat(filename)
+	if os.IsNotExist(err) {
+		return false
+	}
+	return !info.IsDir()
+}