tests: add resources controller test

internal/controller/resources_controller_test.go

@@ -0,0 +1,56 @@
+package controller_test
+
+import (
+	"net/http/httptest"
+	"os"
+	"testing"
+	"tinyauth/internal/controller"
+
+	"github.com/gin-gonic/gin"
+	"gotest.tools/v3/assert"
+)
+
+func TestResourcesHandler(t *testing.T) {
+	// Setup
+	gin.SetMode(gin.TestMode)
+	router := gin.New()
+	group := router.Group("/")
+
+	ctrl := controller.NewResourcesController(controller.ResourcesControllerConfig{
+		ResourcesDir: "/tmp/tinyauth",
+	}, group)
+	ctrl.SetupRoutes()
+
+	// Create test data
+	err := os.Mkdir("/tmp/tinyauth", 0755)
+	assert.NilError(t, err)
+
+	file, err := os.Create("/tmp/tinyauth/test.txt")
+	assert.NilError(t, err)
+
+	_, err = file.WriteString("This is a test file.")
+	assert.NilError(t, err)
+	file.Close()
+
+	// Test existing file
+	req := httptest.NewRequest("GET", "/resources/test.txt", nil)
+	recorder := httptest.NewRecorder()
+	router.ServeHTTP(recorder, req)
+
+	assert.Equal(t, 200, recorder.Code)
+	assert.Equal(t, "This is a test file.", recorder.Body.String())
+
+	// Test non-existing file
+	req = httptest.NewRequest("GET", "/resources/nonexistent.txt", nil)
+	recorder = httptest.NewRecorder()
+	router.ServeHTTP(recorder, req)
+
+	assert.Equal(t, 404, recorder.Code)
+
+	// Test directory traversal attack
+	req = httptest.NewRequest("GET", "/resources/../etc/passwd", nil)
+	recorder = httptest.NewRecorder()
+	router.ServeHTTP(recorder, req)
+
+	assert.Equal(t, 404, recorder.Code)
+}