pkg/hubble/filters: replace reflect.DeepEqual with assert.Equal in tests

Replace all uses of reflect.DeepEqual with assert.Equal from the
github.com/stretchr/testify/assert package in pkg/hubble/filters/ test files.
This provides better error messages when test assertions fail by
showing which specific fields differ between expected and actual values.

Fixes: cilium#40562
Signed-off-by: Ashwin Pillai <pillaiashwin96@gmail.com>

Author: pillai-ashwin

pkg/hubble/filters/labelparser_test.go

@@ -4,8 +4,9 @@
 package filters
 
 import (
-	"reflect"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func Test_translateSelector(t *testing.T) {
@@ -93,8 +94,8 @@ func Test_translateSelector(t *testing.T) {
 				t.Errorf("parseSelector() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
-			if !tt.wantErr && !reflect.DeepEqual(got, tt.want) {
-				t.Errorf("parseSelector() = %q, want %q", got, tt.want)
+			if !tt.wantErr {
+				assert.Equal(t, tt.want, got)
 			}
 		})
 	}

pkg/hubble/filters/labels_test.go

@@ -4,9 +4,10 @@
 package filters
 
 import (
-	"reflect"
 	"testing"
 
+	"github.com/stretchr/testify/assert"
+
 	flowpb "github.com/cilium/cilium/api/v1/flow"
 	v1 "github.com/cilium/cilium/pkg/hubble/api/v1"
 )
@@ -647,8 +648,8 @@ func Test_parseSelector(t *testing.T) {
 				t.Errorf("parseSelector() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
-			if !tt.wantErr && !reflect.DeepEqual(got.String(), tt.want) {
-				t.Errorf("parseSelector() = %q, want %q", got, tt.want)
+			if !tt.wantErr {
+				assert.Equal(t, tt.want, got.String())
 			}
 		})
 	}