🧪 Add tests for LogPath in config package

internal/config/config_test.go

@@ -0,0 +1,51 @@
+package config
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+func TestEnvironment_LogPath(t *testing.T) {
+	tests := []struct {
+		name        string
+		serviceName string
+		programData string
+		want        string
+	}{
+		{
+			name:        "Standard path",
+			serviceName: "TestService",
+			programData: "/var/lib",
+			want:        filepath.Join("/var/lib", "TestService", "TestService.log"),
+		},
+		{
+			name:        "Empty program data",
+			serviceName: "TestService",
+			programData: "",
+			want:        filepath.Join("TestService", "TestService.log"),
+		},
+		{
+			name:        "Program data with trailing separator",
+			serviceName: "TestService",
+			programData: "/var/lib/",
+			want:        filepath.Join("/var/lib", "TestService", "TestService.log"),
+		},
+		{
+			name:        "Service name with spaces",
+			serviceName: "Test Service",
+			programData: "/var/lib",
+			want:        filepath.Join("/var/lib", "Test Service", "Test Service.log"),
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			e := Environment{
+				ServiceName: tt.serviceName,
+			}
+			if got := e.LogPath(tt.programData); got != tt.want {
+				t.Errorf("Environment.LogPath() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}