1 files changed, 55 insertions, 0 deletions
diff --git a/services/markup/processorhelper_test.go b/services/markup/processorhelper_test.go
new file mode 100644
index 0000000..fafde74
--- /dev/null
+++ b/services/markup/processorhelper_test.go
@@ -0,0 +1,55 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package markup
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/models/user"
+	gitea_context "code.gitea.io/gitea/services/context"
+	"code.gitea.io/gitea/services/contexttest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestProcessorHelper(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	userPublic := "user1"
+	userPrivate := "user31"
+	userLimited := "user33"
+	userNoSuch := "no-such-user"
+
+	unittest.AssertCount(t, &user.User{Name: userPublic}, 1)
+	unittest.AssertCount(t, &user.User{Name: userPrivate}, 1)
+	unittest.AssertCount(t, &user.User{Name: userLimited}, 1)
+	unittest.AssertCount(t, &user.User{Name: userNoSuch}, 0)
+
+	// when using general context, use user's visibility to check
+	assert.True(t, ProcessorHelper().IsUsernameMentionable(context.Background(), userPublic))
+	assert.False(t, ProcessorHelper().IsUsernameMentionable(context.Background(), userLimited))
+	assert.False(t, ProcessorHelper().IsUsernameMentionable(context.Background(), userPrivate))
+	assert.False(t, ProcessorHelper().IsUsernameMentionable(context.Background(), userNoSuch))
+
+	// when using web context, use user.IsUserVisibleToViewer to check
+	req, err := http.NewRequest("GET", "/", nil)
+	require.NoError(t, err)
+	base, baseCleanUp := gitea_context.NewBaseContext(httptest.NewRecorder(), req)
+	defer baseCleanUp()
+	giteaCtx := gitea_context.NewWebContext(base, &contexttest.MockRender{}, nil)
+
+	assert.True(t, ProcessorHelper().IsUsernameMentionable(giteaCtx, userPublic))
+	assert.False(t, ProcessorHelper().IsUsernameMentionable(giteaCtx, userPrivate))
+
+	giteaCtx.Doer, err = user.GetUserByName(db.DefaultContext, userPrivate)
+	require.NoError(t, err)
+	assert.True(t, ProcessorHelper().IsUsernameMentionable(giteaCtx, userPublic))
+	assert.True(t, ProcessorHelper().IsUsernameMentionable(giteaCtx, userPrivate))
+}