1 files changed, 74 insertions, 0 deletions
diff --git a/modules/setting/incoming_email_test.go b/modules/setting/incoming_email_test.go
new file mode 100644
index 00000000..0fdd44d3
--- /dev/null
+++ b/modules/setting/incoming_email_test.go
@@ -0,0 +1,74 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package setting
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_loadIncomingEmailFrom(t *testing.T) {
+	makeBaseConfig := func() (ConfigProvider, ConfigSection) {
+		cfg, _ := NewConfigProviderFromData("")
+		sec := cfg.Section("email.incoming")
+		sec.NewKey("ENABLED", "true")
+		sec.NewKey("REPLY_TO_ADDRESS", "forge+%{token}@example.com")
+
+		return cfg, sec
+	}
+	resetIncomingEmailPort := func() func() {
+		return func() {
+			IncomingEmail.Port = 0
+		}
+	}
+
+	t.Run("aliases", func(t *testing.T) {
+		cfg, sec := makeBaseConfig()
+		sec.NewKey("USER", "jane.doe@example.com")
+		sec.NewKey("PASSWD", "y0u'll n3v3r gUess th1S!!1")
+
+		loadIncomingEmailFrom(cfg)
+
+		assert.EqualValues(t, "jane.doe@example.com", IncomingEmail.Username)
+		assert.EqualValues(t, "y0u'll n3v3r gUess th1S!!1", IncomingEmail.Password)
+	})
+
+	t.Run("Port settings", func(t *testing.T) {
+		t.Run("no port, no tls", func(t *testing.T) {
+			defer resetIncomingEmailPort()()
+			cfg, sec := makeBaseConfig()
+
+			// False is the default, but we test it explicitly.
+			sec.NewKey("USE_TLS", "false")
+
+			loadIncomingEmailFrom(cfg)
+
+			assert.EqualValues(t, 143, IncomingEmail.Port)
+		})
+
+		t.Run("no port, with tls", func(t *testing.T) {
+			defer resetIncomingEmailPort()()
+			cfg, sec := makeBaseConfig()
+
+			sec.NewKey("USE_TLS", "true")
+
+			loadIncomingEmailFrom(cfg)
+
+			assert.EqualValues(t, 993, IncomingEmail.Port)
+		})
+
+		t.Run("port overrides tls", func(t *testing.T) {
+			defer resetIncomingEmailPort()()
+			cfg, sec := makeBaseConfig()
+
+			sec.NewKey("PORT", "1993")
+			sec.NewKey("USE_TLS", "true")
+
+			loadIncomingEmailFrom(cfg)
+
+			assert.EqualValues(t, 1993, IncomingEmail.Port)
+		})
+	})
+}