refactor: tests (#731)

* tests: rework tests for context controller

* tests: add tests for health controller

* tests: add tests for oidc controller

* tests: use testify assert in context and health controller

* tests: add tests for user controller

* tests: add tests for resources controller

* tests: add well known controller tests

* test: add proxy controller tests

* chore: review comments

* chore: more review comments

* chore: cancel lockdown in testing

* tests: fix get cookie domain tests

* chore: add comment for testing passwords

internal/controller/health_controller_test.go

@@ -0,0 +1,71 @@
+package controller_test
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/steveiliop56/tinyauth/internal/controller"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestHealthController(t *testing.T) {
+	tests := []struct {
+		description string
+		path        string
+		method      string
+		expected    string
+	}{
+		{
+			description: "Ensure health endpoint returns 200 OK",
+			path:        "/api/healthz",
+			method:      "GET",
+			expected: func() string {
+				expectedHealthResponse := map[string]any{
+					"status":  200,
+					"message": "Healthy",
+				}
+				bytes, err := json.Marshal(expectedHealthResponse)
+				assert.NoError(t, err)
+				return string(bytes)
+			}(),
+		},
+		{
+			description: "Ensure health endpoint returns 200 OK for HEAD request",
+			path:        "/api/healthz",
+			method:      "HEAD",
+			expected: func() string {
+				expectedHealthResponse := map[string]any{
+					"status":  200,
+					"message": "Healthy",
+				}
+				bytes, err := json.Marshal(expectedHealthResponse)
+				assert.NoError(t, err)
+				return string(bytes)
+			}(),
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.description, func(t *testing.T) {
+			router := gin.Default()
+			group := router.Group("/api")
+			gin.SetMode(gin.TestMode)
+
+			healthController := controller.NewHealthController(group)
+			healthController.SetupRoutes()
+
+			recorder := httptest.NewRecorder()
+
+			request, err := http.NewRequest(test.method, test.path, nil)
+			assert.NoError(t, err)
+
+			router.ServeHTTP(recorder, request)
+
+			assert.Equal(t, http.StatusOK, recorder.Code)
+			assert.Equal(t, test.expected, recorder.Body.String())
+		})
+	}
+}